[Texascavers] Breaking WNS policy-related news from USFS Region 2
The U.S. Forest Service Region 2 has issued a new, modified cave closure order for the Rocky Mountain Region for one year. In it, members of the NSS and CRF are granted exemptions for broad purposes consistent with the conditions of the MOUs the organizations have with the USFS. Advance permission is still required, as well as following decon procedures, modified by the USFS. Why is this important? It shows that government policy-makers are beginning to acknowledge that the risk of human-based transmission of Geomyces destructans can be all but eliminated if people take the time to decontaminate their gear. Secondly, the USFS trusts the NSS and our members as we continue to develop long-term, sustainable cave visitation policies. Those of us in other areas of the country can point to this policy as one that is mutually beneficial to everyone and protects a potentially endangered resource. We all owe Derek Bristol a huge debt of gratitude for his perseverance during negotiations with the USFS. Thanks to Derek's efforts the templates for trip reports required by this order will now permit non-NSS grotto members, scouts, and other groups to accompany NSS and CRF members on authorized trips. Here is a PDF copy of the Order: http://www.caves.org/WNS/USFS%20Region%202%202012%20Closure%20Extension.pdf CavingNews.com Article: http://cavingnews.com/20120802-rocky-mountain-region-extends-cave-closures-acknowledges-cavers - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
Re: [Texascavers] Waller Creek Flood Tunnel
I would think that it's primarily Austin Chalk in that part of town (Geologic map's not handy, but that's my memory) which is too soft hereabouts to support caves. It's doubtful they'd encounter any around there. It seems the eastermost caves in the county are probably along the Shoal Creek line. On Aug 2, 2012, at 1:02 AM, Justin Haynes wrote: Is anyone keeping up with this tunnel from a geological perspective? At 85 feet deep and ~20 feet in diameter, I wonder about the rock there and if they are likely to hit any caves. I also wonder if they know whether or not they will hit any caves and what could possibly happen if they do so. Is there any typical features of caves that exist that close to the Colorado River? Is such a cave likely in this area? http://www.tunneltalk.com/Waller-Creek-Apr11-Austin-Waller-Creek-flood-tunnel.php http://www.espeyconsultants.com/projects/waller_creek.php5 Thanks, Justin - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
Re: [Texascavers] Help - speed, tire size change
Above about 70 mph in the ol' Grey Pendejo, the extra gas input from pushing the pedal to the floor almost exactly equalled the extra wind resistance. I think I managed to get that thing up to 75 a couple times in passing situations, and the gas gauge had always noticeably moved after I was done passing. I miss that square beast now and again, but I sure don't miss the 8-10 mph on the highway -- it was like driving a billboard sideways down the road, for all the aerodynamics it had. What was Chevy thinking? On Aug 1, 2012, at 7:13 AM, vivb...@att.net wrote: Another reason you're mileage will drop is that the increased tire diameter will raise you slightly higher relative to the ground, which will increase your wind resistance. Wind resistance is the main reason mileage drops so fast at higher speeds too. -Vivian Loftin --- On Wed, 8/1/12, Mimi Jasek mjca...@gmail.com wrote: From: Mimi Jasek mjca...@gmail.com Subject: Re: [Texascavers] Help - speed, tire size change To: Diana Tomchick diana.tomch...@utsouthwestern.edu Cc: TexasCavers texascavers@texascavers.com Date: Wednesday, August 1, 2012, 12:01 AM Ok, Diana, Nico, and Karl, thanks so much. A lot of what you all said was close to some of what I thought, but you defined it for me. I will use your info to try to solve our problem, and for now just slow down. Lost 5+ mpg, which to me is a lot, for the cookie jar has no funds for stock. If others reply to help, it will be tomorrow before I get back to mail. Last load of laundry calls to be put away, then this tired lady must go to sleep before another work day starts:) Mimi Sent from my iPhone On Jul 31, 2012, at 11:42 PM, Diana Tomchick diana.tomch...@utsouthwestern.edu wrote: Mimi, A simple back-of-the-envelope calculation would be to divide the current tire circumference by the previous tire circumference. This would give you an estimate of the fractional difference the new, larger tire would travel for each revolution of the tire. Using the numbers you supplied gives a value of approximately 1.071. If you are used to driving at 60 m.p.h., in theory the new tires would actually be taking you at 60 x 1.071 = 64.26 m.p.h. Of course this is a pretty simplistic estimate. If you want to maximize your gas mileage, that's a more complicated experiment that would need you to fill your gas tank (be sure to always use the same type of gas--the higher the percentage of ethanol, the lower your mile per gallon), drive a set distance at different speeds and re-fill the tank to see how much you used. Oh, and be sure that the prevailing wind speed and direction is the same every time you repeat the drive at the different speeds. Diana Diana R. Tomchick Professor Dept. of Biochemistry University of Texas Southwestern Medical Center 5323 Harry Hines Blvd. Dallas, TX 75390-8816 (214) 645-6383 (office) (214) 418-5827 (cell) diana.tomch...@utsouthwestern.edu On Jul 31, 2012, at 11:09 PM, Mimi Jasek mjca...@gmail.com wrote: Ok, I need help. I have a Ford Escape that we use as our main caving vehicle due to great gas mileage. Due to age, miles, and need for stronger sidewalls and better traction, we traded our old tires for new. Love them, but because bigger, noticed huge drop in gas mileage at same speeds used to traveling, and I seem to be staying up with or passing everyone!! Old = P235/70R16 normal street tires New = LT245/75R16 E Toyo OPAT OWL 120Q Don't want a speeding ticket, and need my good mpg back, or close to it. Can anyone tell me how much to decrease my speed, and if the reduction is the same for all speeds? If not the same, how much decrease at what increments? I believe my old tires were 28 diameter (spare is that) with 7.33' circumference, and new are 30 with 7.85' circumference. I have to believe there are more than enough math wiz/ tire savvy folks out there to get me some answers, but if I am asking the impossible, tell me. I do have a tachometer as well as a speedometer if that helps. For us, mpg means a lot due to cost of gas, and determines how many trips we make. I would really appreciate any help anyone can give me. Thanks, Mimi Jasek Sent from my iPhone - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com UT Southwestern Medical Center The future of medicine, today. - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com - Visit our website: http://texascavers.com To unsubscribe, e-mail:
texascavers Digest 3 Aug 2012 07:31:42 -0000 Issue 1602
texascavers Digest 3 Aug 2012 07:31:42 - Issue 1602 Topics (messages 20450 through 20468): Re: Help - speed, tire size change 20450 by: Jon Cradit 20455 by: Fritz Holt 20458 by: Mimi Jasek 20459 by: Logan McNatt 20460 by: Mimi Jasek Paging Ryan Fabich 20451 by: Mark.Alman.L-3com.com 16th ICS registration is open! 20452 by: Fofo tire size and mileage 20453 by: Mixon Bill Kiwi Sink dig 20454 by: Gill Edigar Re: Final Revised TSA Members List 20456 by: Fritz Holt 20457 by: Denise P Re: tire change help 20461 by: Mimi Jasek Waller Creek Flood Tunnel 20462 by: Justin Haynes sinkhole collapse captured on video 20463 by: Geary Schindel 2013 International Congress fees 20464 by: Mixon Bill New Rabies Announcement 20465 by: Preston Forsythe ethanol-free gas stations 20466 by: Sam Young Texas Caver on the Karst Information Portal 20467 by: George Veni 20468 by: JerryAtkin.aol.com Administrivia: To subscribe to the digest, e-mail: texascavers-digest-subscr...@texascavers.com To unsubscribe from the digest, e-mail: texascavers-digest-unsubscr...@texascavers.com To post to the list, e-mail: texascavers@texascavers.com -- ---BeginMessage--- That is exactly what I was thinking Philip. Mimi, what you could do is find a stretch of IH35 where you can drive 60mph for several uninterrupted miles. Using the interstate mile markers on the side of the road accurately time how long it takes you to drive several miles at your presumed 60mph. This should let you know how much your speed-o-meter (and od-o-meter) are off. Jon Cradit -Original Message- From: philipm...@juno.com [mailto:philipm...@juno.com] Sent: Wednesday, August 01, 2012 7:31 AM To: texascavers@texascavers.com Subject: Re: [Texascavers] Help - speed, tire size change Mimi, While most everything said is accurate enough, one important factor has been left out. Your current mileage is better than you think; your odometer and speedometer are different measurements by the same instrument. Since your speedometer is under-reporting your speed, your odometer is also under-reporting your mileage. Some of your mileage loss is not lost and is merely appearing to be lost just because you are traveling more miles than your odometer records. If you have an electronic speedometer, like almost all vehicles do these days like my 2001 Dodge, you can have the speedometer recalibrated for not much. I had mine done last month for $16 and it just takes a few minutes. Recalibration helps check your mileage accurately because your nominal or even measured tire diameter is not the rolling diameter and it helps avoid speeding tickets. An example of rolling diameter vs. manufacturer's stated diameter: My tire diameter is 36.3 inches, but according to my GPS and my calculations, my rolling diameter is only 34.75 inches (580 revolutions per mile vs. 555 revolutions per mile). Tires are not steel wheels and have considerable deformation while driving. Philip Moss philipm...@juno.com Woman is 57 But Looks 27 Mom publishes simple facelift trick that angered doctors... http://thirdpartyoffers.juno.com/TGL3141/501921e481b2d21e4584dst51vuc - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com ---End Message--- ---BeginMessage--- Much of this technical tire talk is a bit too complicated for me but I have a couple of thoughts on the subject. By the way, can anyone tell me a brand of gasoline or a retail distributor that does not have ethanol in the product? Using corn or even sugar cane is an uneconomical (government) solution to a problem that I doubt exists. Back to gas mileage, tires and speed. The wider the tread (foot print, the greater the rolling resistance. Better gas mileage can be achieved by slightly overinflating the tires to decrease rolling resistance but may result in uneven or greater tire wear in the center of the tire. Starting and stopping produces the greatest wear in overinflated tires, or in any tires. I would recommend inflating about two to three pounds over tire manufacturer's recommendations but never below although it gives a slightly softer ride. By far the biggest deterrent to good gas mileage is speed and a heavy foot while accelerating. The legal speed limits continue to increase in some areas which if exercised, equals lower gas mileage. When the speed limit is 70 and above and you are not in a hurry, driving 10 MPH below the posted limit insures more MPG. Best to ignore the 75 and 80 MPH
[SWR] Sinkhole Conference: new abstract deadline and tragic sinkhole video
Dear Friends, The abstract deadline for the Sinkhole Conference has been moved from 15 August 2012 to 31 August 2012. The Organizing Committee realized that the original deadline was only a day after the Geological Society of America Convention deadline, plus many faculty may not be back in time from their summer travels and research. The new deadline still provides us enough time to work with the authors to assure the continued publication of quality papers in the proceedings, and that the proceedings are ready and distributed at the conference. The new deadline also applies to students applying for the Dr. Barry F. Beck Sinkhole Conference Student Scholarship. We hope many students will apply. Professors, please encourage your students! This conference series is an excellent learning opportunity and chance to meet potential colleagues and employers. More information about the Sinkhole Conference is available at www.nckri.org/sinkholeconference2013. We are putting finishing touches on our on-line registration, but for registration and other details download or open the Second Circular at https://sites.google.com/site/sinkholeconference2013/home/announcements/seco ndcircularisonline. If you haven't seen it, the link below is a tragic reminder of why we work so hard to better understand sinkholes, caves, and karst, and to prevent problems like sudden, unpredicted sinkhole collapse. This is a video of someone in Taiwan swallowed and killed by a sinkhole that suddenly opened beneath his feet: www.cnn.com/video/?hpt=hp_t3#/video/world/2012/08/02/vo-taiwain-teipei-sinkh ole.cnn Be safe, George *** George Veni, Ph.D. Executive Director National Cave and Karst Research Institute 400-1 Cascades Avenue Carlsbad, New Mexico 88220-6215 USA Office: 575-887-5517 Mobile: 210-863-5919 Fax: 575-887-5523 gv...@nckri.org www.nckri.org ___ SWR mailing list s...@caver.net http://lists.caver.net/cgi-bin/mailman/listinfo/swr ___ This list is provided free as a courtesy of CAVERNET
[Texascavers] Breaking WNS policy-related news from USFS Region 2
The U.S. Forest Service Region 2 has issued a new, modified cave closure order for the Rocky Mountain Region for one year. In it, members of the NSS and CRF are granted exemptions for broad purposes consistent with the conditions of the MOUs the organizations have with the USFS. Advance permission is still required, as well as following decon procedures, modified by the USFS. Why is this important? It shows that government policy-makers are beginning to acknowledge that the risk of human-based transmission of Geomyces destructans can be all but eliminated if people take the time to decontaminate their gear. Secondly, the USFS trusts the NSS and our members as we continue to develop long-term, sustainable cave visitation policies. Those of us in other areas of the country can point to this policy as one that is mutually beneficial to everyone and protects a potentially endangered resource. We all owe Derek Bristol a huge debt of gratitude for his perseverance during negotiations with the USFS. Thanks to Derek's efforts the templates for trip reports required by this order will now permit non-NSS grotto members, scouts, and other groups to accompany NSS and CRF members on authorized trips. Here is a PDF copy of the Order: http://www.caves.org/WNS/USFS%20Region%202%202012%20Closure%20Extension.pdf CavingNews.com Article: http://cavingnews.com/20120802-rocky-mountain-region-extends-cave-closures-acknowledges-cavers - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
Re: [SWR] [Texascavers] Texas Caver on the Karst Information Portal
Excellent work, George. It's good to have the Texas Caver available to the general community, especially the older issues which are very difficult to find in most folks' collections or libraries. Just to be fair, those that access the current version of the KIP archive of the Texas Caver will find that the early issues are in grayscale rather than color, and the scanning quality was fair but not great. Still, the information is all there if not the aesthetic quality of the original. Note that some of the newer issues are rather large files as the compressed pdf versions were not used. Jerry Atkinson Texas Speleological Survey *** In a message dated 8/3/2012 12:43:09 A.M. Central Daylight Time, gv...@nckri.org writes: A couple of years ago the TSA directors agreed that I could send my complete collection of The Texas Caver for scanning and free digital access the Karst Information Portal (_www.karstportal.org_ (http://www.karstportal.org/) ). The process took longer than I thought, but the reasons were worth the wait. The Karst Information Portal is created by a partnership of the National Cave and Karst Research Institute, University of South Florida, International Union of Speleology, and the University of New Mexico. Its purpose is to serve as a free, open access research tool for anyone and anything related to caves and karst. Currently, the major effort going on with the Portal is developing a major, digital, open access cave and karst library. The Texas Caver is one of 70 newsletters and journals from 17 different countries currently available through the Portal. While the Portal gets many offers from cavers wanting to help and offering to do the scans, that isn’t practical. The scanning, OCRing, metadata documentation, and many hidden digital archiving features conducted by the professional library staff at the University of South Florida is far beyond what any person who doesn’t work in a professional digital archiving facility can achieve. Some of the hidden work is developing flexibility and functionality, including for use with emerging technologies that aren’t currently available but will be in the future. That is much of what took the extra time. Also, there was major upgrade of the Portal. I’ll send a separate announcement on that in a week or two, but I find the Portal easier to use and more flexible, and there were behind-the-scenes and less obvious upgrades I’ ll report on later. Though my collection of The Texas Caver is complete, the online version on the Portal is complete only through 2009; TSA decided to restrict access to the most recent three years to only TSA members. Next year the 2010 issues will be posted. Also, the Portal’s collection is missing the issues for 1968 and 2001. My copies of 1968 and 2001 were too tightly bound and some of the text for those years was hidden in the binding, but I’m now working to get those issues from other sources. While this message is mainly intended for Texas cavers, I know cavers from around the country also read this list. If any of your would like your newsletters posted on the Portal so information on what you’re doing can be more easily shared with the rest of the caving world, let me know and I’ll work with you to make that happen. Don’t assume “It’s just a grotto newsletter and no big deal.” Grotto and regional newsletters collectively are the largest and most important sources of maps, descriptions, photos, and other information on caves, and it is often not available anywhere else. Now with the Karst Information Portal, your efforts can be more recognized, appreciated, and of benefit to cavers everywhere. George *** George Veni, Ph.D. Executive Director National Cave and Karst Research Institute 400-1 Cascades Avenue Carlsbad, New Mexico 88220-6215 USA Office: 575-887-5517 Mobile: 210-863-5919 Fax: 575-887-5523 gv...@nckri.org www.nckri.org ___ SWR mailing list s...@caver.net http://lists.caver.net/cgi-bin/mailman/listinfo/swr ___ This list is provided free as a courtesy of CAVERNET
Re: [SWR] [Texascavers] Texas Caver on the Karst Information Portal
Jerry, Thanks for the compliments. The KIP and partnership that makes it is an incredible and growing resource. Yes, the gray scale with the early issues is disappointing. Even though our partners at the University of South Florida were using the state-of-the-art equipment to scan the issues, the faint mimeo printing was extremely difficult to scan and preserve, not just for the text and images, but for a lot of the hidden background attributes. Following lots of experimenting, adjusting, and pulling of hair, they managed to preserve the information in gray scale, sacrificing the color. George *** George Veni, Ph.D. Executive Director National Cave and Karst Research Institute 400-1 Cascades Avenue Carlsbad, New Mexico 88220-6215 USA Office: 575-887-5517 Mobile: 210-863-5919 Fax: 575-887-5523 gv...@nckri.org www.nckri.org From: jerryat...@aol.com [mailto:jerryat...@aol.com] Sent: Friday, August 03, 2012 01:32 To: gv...@nckri.org; Texascavers@texascavers.com; s...@caver.net Subject: Re: [Texascavers] Texas Caver on the Karst Information Portal Excellent work, George. It's good to have the Texas Caver available to the general community, especially the older issues which are very difficult to find in most folks' collections or libraries. Just to be fair, those that access the current version of the KIP archive of the Texas Caver will find that the early issues are in grayscale rather than color, and the scanning quality was fair but not great. Still, the information is all there if not the aesthetic quality of the original. Note that some of the newer issues are rather large files as the compressed pdf versions were not used. Jerry Atkinson Texas Speleological Survey *** In a message dated 8/3/2012 12:43:09 A.M. Central Daylight Time, gv...@nckri.org writes: A couple of years ago the TSA directors agreed that I could send my complete collection of The Texas Caver for scanning and free digital access the Karst Information Portal (www.karstportal.org http://www.karstportal.org/ ). The process took longer than I thought, but the reasons were worth the wait. The Karst Information Portal is created by a partnership of the National Cave and Karst Research Institute, University of South Florida, International Union of Speleology, and the University of New Mexico. Its purpose is to serve as a free, open access research tool for anyone and anything related to caves and karst. Currently, the major effort going on with the Portal is developing a major, digital, open access cave and karst library. The Texas Caver is one of 70 newsletters and journals from 17 different countries currently available through the Portal. While the Portal gets many offers from cavers wanting to help and offering to do the scans, that isn’t practical. The scanning, OCRing, metadata documentation, and many hidden digital archiving features conducted by the professional library staff at the University of South Florida is far beyond what any person who doesn’t work in a professional digital archiving facility can achieve. Some of the hidden work is developing flexibility and functionality, including for use with emerging technologies that aren’t currently available but will be in the future. That is much of what took the extra time. Also, there was major upgrade of the Portal. I’ll send a separate announcement on that in a week or two, but I find the Portal easier to use and more flexible, and there were behind-the-scenes and less obvious upgrades I’ll report on later. Though my collection of The Texas Caver is complete, the online version on the Portal is complete only through 2009; TSA decided to restrict access to the most recent three years to only TSA members. Next year the 2010 issues will be posted. Also, the Portal’s collection is missing the issues for 1968 and 2001. My copies of 1968 and 2001 were too tightly bound and some of the text for those years was hidden in the binding, but I’m now working to get those issues from other sources. While this message is mainly intended for Texas cavers, I know cavers from around the country also read this list. If any of your would like your newsletters posted on the Portal so information on what you’re doing can be more easily shared with the rest of the caving world, let me know and I’ll work with you to make that happen. Don’t assume “It’s just a grotto newsletter and no big deal.” Grotto and regional newsletters collectively are the largest and most important sources of maps, descriptions, photos, and other information on caves, and it is often not available anywhere else. Now with the Karst Information Portal, your efforts can be more recognized, appreciated, and of benefit to cavers everywhere. George *** George Veni, Ph.D. Executive Director National Cave and Karst Research Institute
[Texascavers] How to maintain and mark gear, by Petzl
Howdy! Here's a nice guide from Petzl on how to maintain and mark gear: http://www.petzl.com/files/all/technical-notice/both/protecting-equipment-tips_EN.pdf Or: http://tinyurl.com/cs3kutn Have a fun weekend! - Fofo - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
Re: [Texascavers] Waller Creek Flood Tunnel
I would think that it's primarily Austin Chalk in that part of town (Geologic map's not handy, but that's my memory) which is too soft hereabouts to support caves. It's doubtful they'd encounter any around there. It seems the eastermost caves in the county are probably along the Shoal Creek line. On Aug 2, 2012, at 1:02 AM, Justin Haynes wrote: Is anyone keeping up with this tunnel from a geological perspective? At 85 feet deep and ~20 feet in diameter, I wonder about the rock there and if they are likely to hit any caves. I also wonder if they know whether or not they will hit any caves and what could possibly happen if they do so. Is there any typical features of caves that exist that close to the Colorado River? Is such a cave likely in this area? http://www.tunneltalk.com/Waller-Creek-Apr11-Austin-Waller-Creek-flood-tunnel.php http://www.espeyconsultants.com/projects/waller_creek.php5 Thanks, Justin - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
Re: [Texascavers] ethanol-free gas stations
I have recently bought gas at a pump that had both: ethanol added and ethanol free, at like a nickle or dime difference in price. But I can't recall where it was. Could have been in Alabama or somewhere related to our NSS Convention trip last month. --Ediger On Thu, Aug 2, 2012 at 4:07 PM, Sam Young youn...@centurytel.net wrote: Fritz Holt asked: By the way, can anyone tell me a brand of gasoline or a retail distributor that does not have ethanol in the product? Here is a list of the stations in Texas which have ethanol-free gas. Alas, you will notice that there are no large Texas cities in the list: http://pure-gas.org/index.jsp?stateprov=TX Sam - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
Re: [Texascavers] Help - speed, tire size change
Above about 70 mph in the ol' Grey Pendejo, the extra gas input from pushing the pedal to the floor almost exactly equalled the extra wind resistance. I think I managed to get that thing up to 75 a couple times in passing situations, and the gas gauge had always noticeably moved after I was done passing. I miss that square beast now and again, but I sure don't miss the 8-10 mph on the highway -- it was like driving a billboard sideways down the road, for all the aerodynamics it had. What was Chevy thinking? On Aug 1, 2012, at 7:13 AM, vivb...@att.net wrote: Another reason you're mileage will drop is that the increased tire diameter will raise you slightly higher relative to the ground, which will increase your wind resistance. Wind resistance is the main reason mileage drops so fast at higher speeds too. -Vivian Loftin --- On Wed, 8/1/12, Mimi Jasek mjca...@gmail.com wrote: From: Mimi Jasek mjca...@gmail.com Subject: Re: [Texascavers] Help - speed, tire size change To: Diana Tomchick diana.tomch...@utsouthwestern.edu Cc: TexasCavers texascavers@texascavers.com Date: Wednesday, August 1, 2012, 12:01 AM Ok, Diana, Nico, and Karl, thanks so much. A lot of what you all said was close to some of what I thought, but you defined it for me. I will use your info to try to solve our problem, and for now just slow down. Lost 5+ mpg, which to me is a lot, for the cookie jar has no funds for stock. If others reply to help, it will be tomorrow before I get back to mail. Last load of laundry calls to be put away, then this tired lady must go to sleep before another work day starts:) Mimi Sent from my iPhone On Jul 31, 2012, at 11:42 PM, Diana Tomchick diana.tomch...@utsouthwestern.edu wrote: Mimi, A simple back-of-the-envelope calculation would be to divide the current tire circumference by the previous tire circumference. This would give you an estimate of the fractional difference the new, larger tire would travel for each revolution of the tire. Using the numbers you supplied gives a value of approximately 1.071. If you are used to driving at 60 m.p.h., in theory the new tires would actually be taking you at 60 x 1.071 = 64.26 m.p.h. Of course this is a pretty simplistic estimate. If you want to maximize your gas mileage, that's a more complicated experiment that would need you to fill your gas tank (be sure to always use the same type of gas--the higher the percentage of ethanol, the lower your mile per gallon), drive a set distance at different speeds and re-fill the tank to see how much you used. Oh, and be sure that the prevailing wind speed and direction is the same every time you repeat the drive at the different speeds. Diana Diana R. Tomchick Professor Dept. of Biochemistry University of Texas Southwestern Medical Center 5323 Harry Hines Blvd. Dallas, TX 75390-8816 (214) 645-6383 (office) (214) 418-5827 (cell) diana.tomch...@utsouthwestern.edu On Jul 31, 2012, at 11:09 PM, Mimi Jasek mjca...@gmail.com wrote: Ok, I need help. I have a Ford Escape that we use as our main caving vehicle due to great gas mileage. Due to age, miles, and need for stronger sidewalls and better traction, we traded our old tires for new. Love them, but because bigger, noticed huge drop in gas mileage at same speeds used to traveling, and I seem to be staying up with or passing everyone!! Old = P235/70R16 normal street tires New = LT245/75R16 E Toyo OPAT OWL 120Q Don't want a speeding ticket, and need my good mpg back, or close to it. Can anyone tell me how much to decrease my speed, and if the reduction is the same for all speeds? If not the same, how much decrease at what increments? I believe my old tires were 28 diameter (spare is that) with 7.33' circumference, and new are 30 with 7.85' circumference. I have to believe there are more than enough math wiz/ tire savvy folks out there to get me some answers, but if I am asking the impossible, tell me. I do have a tachometer as well as a speedometer if that helps. For us, mpg means a lot due to cost of gas, and determines how many trips we make. I would really appreciate any help anyone can give me. Thanks, Mimi Jasek Sent from my iPhone - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com UT Southwestern Medical Center The future of medicine, today. - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com - Visit our website: http://texascavers.com To unsubscribe, e-mail:
texascavers Digest 3 Aug 2012 07:31:42 -0000 Issue 1602
texascavers Digest 3 Aug 2012 07:31:42 - Issue 1602 Topics (messages 20450 through 20468): Re: Help - speed, tire size change 20450 by: Jon Cradit 20455 by: Fritz Holt 20458 by: Mimi Jasek 20459 by: Logan McNatt 20460 by: Mimi Jasek Paging Ryan Fabich 20451 by: Mark.Alman.L-3com.com 16th ICS registration is open! 20452 by: Fofo tire size and mileage 20453 by: Mixon Bill Kiwi Sink dig 20454 by: Gill Edigar Re: Final Revised TSA Members List 20456 by: Fritz Holt 20457 by: Denise P Re: tire change help 20461 by: Mimi Jasek Waller Creek Flood Tunnel 20462 by: Justin Haynes sinkhole collapse captured on video 20463 by: Geary Schindel 2013 International Congress fees 20464 by: Mixon Bill New Rabies Announcement 20465 by: Preston Forsythe ethanol-free gas stations 20466 by: Sam Young Texas Caver on the Karst Information Portal 20467 by: George Veni 20468 by: JerryAtkin.aol.com Administrivia: To subscribe to the digest, e-mail: texascavers-digest-subscr...@texascavers.com To unsubscribe from the digest, e-mail: texascavers-digest-unsubscr...@texascavers.com To post to the list, e-mail: texascavers@texascavers.com -- ---BeginMessage--- That is exactly what I was thinking Philip. Mimi, what you could do is find a stretch of IH35 where you can drive 60mph for several uninterrupted miles. Using the interstate mile markers on the side of the road accurately time how long it takes you to drive several miles at your presumed 60mph. This should let you know how much your speed-o-meter (and od-o-meter) are off. Jon Cradit -Original Message- From: philipm...@juno.com [mailto:philipm...@juno.com] Sent: Wednesday, August 01, 2012 7:31 AM To: texascavers@texascavers.com Subject: Re: [Texascavers] Help - speed, tire size change Mimi, While most everything said is accurate enough, one important factor has been left out. Your current mileage is better than you think; your odometer and speedometer are different measurements by the same instrument. Since your speedometer is under-reporting your speed, your odometer is also under-reporting your mileage. Some of your mileage loss is not lost and is merely appearing to be lost just because you are traveling more miles than your odometer records. If you have an electronic speedometer, like almost all vehicles do these days like my 2001 Dodge, you can have the speedometer recalibrated for not much. I had mine done last month for $16 and it just takes a few minutes. Recalibration helps check your mileage accurately because your nominal or even measured tire diameter is not the rolling diameter and it helps avoid speeding tickets. An example of rolling diameter vs. manufacturer's stated diameter: My tire diameter is 36.3 inches, but according to my GPS and my calculations, my rolling diameter is only 34.75 inches (580 revolutions per mile vs. 555 revolutions per mile). Tires are not steel wheels and have considerable deformation while driving. Philip Moss philipm...@juno.com Woman is 57 But Looks 27 Mom publishes simple facelift trick that angered doctors... http://thirdpartyoffers.juno.com/TGL3141/501921e481b2d21e4584dst51vuc - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com ---End Message--- ---BeginMessage--- Much of this technical tire talk is a bit too complicated for me but I have a couple of thoughts on the subject. By the way, can anyone tell me a brand of gasoline or a retail distributor that does not have ethanol in the product? Using corn or even sugar cane is an uneconomical (government) solution to a problem that I doubt exists. Back to gas mileage, tires and speed. The wider the tread (foot print, the greater the rolling resistance. Better gas mileage can be achieved by slightly overinflating the tires to decrease rolling resistance but may result in uneven or greater tire wear in the center of the tire. Starting and stopping produces the greatest wear in overinflated tires, or in any tires. I would recommend inflating about two to three pounds over tire manufacturer's recommendations but never below although it gives a slightly softer ride. By far the biggest deterrent to good gas mileage is speed and a heavy foot while accelerating. The legal speed limits continue to increase in some areas which if exercised, equals lower gas mileage. When the speed limit is 70 and above and you are not in a hurry, driving 10 MPH below the posted limit insures more MPG. Best to ignore the 75 and 80 MPH
[SWR] Sinkhole Conference: new abstract deadline and tragic sinkhole video
Dear Friends, The abstract deadline for the Sinkhole Conference has been moved from 15 August 2012 to 31 August 2012. The Organizing Committee realized that the original deadline was only a day after the Geological Society of America Convention deadline, plus many faculty may not be back in time from their summer travels and research. The new deadline still provides us enough time to work with the authors to assure the continued publication of quality papers in the proceedings, and that the proceedings are ready and distributed at the conference. The new deadline also applies to students applying for the Dr. Barry F. Beck Sinkhole Conference Student Scholarship. We hope many students will apply. Professors, please encourage your students! This conference series is an excellent learning opportunity and chance to meet potential colleagues and employers. More information about the Sinkhole Conference is available at www.nckri.org/sinkholeconference2013. We are putting finishing touches on our on-line registration, but for registration and other details download or open the Second Circular at https://sites.google.com/site/sinkholeconference2013/home/announcements/seco ndcircularisonline. If you haven't seen it, the link below is a tragic reminder of why we work so hard to better understand sinkholes, caves, and karst, and to prevent problems like sudden, unpredicted sinkhole collapse. This is a video of someone in Taiwan swallowed and killed by a sinkhole that suddenly opened beneath his feet: www.cnn.com/video/?hpt=hp_t3#/video/world/2012/08/02/vo-taiwain-teipei-sinkh ole.cnn Be safe, George *** George Veni, Ph.D. Executive Director National Cave and Karst Research Institute 400-1 Cascades Avenue Carlsbad, New Mexico 88220-6215 USA Office: 575-887-5517 Mobile: 210-863-5919 Fax: 575-887-5523 gv...@nckri.org www.nckri.org ___ SWR mailing list s...@caver.net http://lists.caver.net/cgi-bin/mailman/listinfo/swr ___ This list is provided free as a courtesy of CAVERNET
[Texascavers] Breaking WNS policy-related news from USFS Region 2
The U.S. Forest Service Region 2 has issued a new, modified cave closure order for the Rocky Mountain Region for one year. In it, members of the NSS and CRF are granted exemptions for broad purposes consistent with the conditions of the MOUs the organizations have with the USFS. Advance permission is still required, as well as following decon procedures, modified by the USFS. Why is this important? It shows that government policy-makers are beginning to acknowledge that the risk of human-based transmission of Geomyces destructans can be all but eliminated if people take the time to decontaminate their gear. Secondly, the USFS trusts the NSS and our members as we continue to develop long-term, sustainable cave visitation policies. Those of us in other areas of the country can point to this policy as one that is mutually beneficial to everyone and protects a potentially endangered resource. We all owe Derek Bristol a huge debt of gratitude for his perseverance during negotiations with the USFS. Thanks to Derek's efforts the templates for trip reports required by this order will now permit non-NSS grotto members, scouts, and other groups to accompany NSS and CRF members on authorized trips. Here is a PDF copy of the Order: http://www.caves.org/WNS/USFS%20Region%202%202012%20Closure%20Extension.pdf CavingNews.com Article: http://cavingnews.com/20120802-rocky-mountain-region-extends-cave-closures-acknowledges-cavers - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
[Texascavers] How to maintain and mark gear, by Petzl
Howdy! Here's a nice guide from Petzl on how to maintain and mark gear: http://www.petzl.com/files/all/technical-notice/both/protecting-equipment-tips_EN.pdf Or: http://tinyurl.com/cs3kutn Have a fun weekend! - Fofo - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
Re: [Texascavers] Waller Creek Flood Tunnel
I would think that it's primarily Austin Chalk in that part of town (Geologic map's not handy, but that's my memory) which is too soft hereabouts to support caves. It's doubtful they'd encounter any around there. It seems the eastermost caves in the county are probably along the Shoal Creek line. On Aug 2, 2012, at 1:02 AM, Justin Haynes wrote: Is anyone keeping up with this tunnel from a geological perspective? At 85 feet deep and ~20 feet in diameter, I wonder about the rock there and if they are likely to hit any caves. I also wonder if they know whether or not they will hit any caves and what could possibly happen if they do so. Is there any typical features of caves that exist that close to the Colorado River? Is such a cave likely in this area? http://www.tunneltalk.com/Waller-Creek-Apr11-Austin-Waller-Creek-flood-tunnel.php http://www.espeyconsultants.com/projects/waller_creek.php5 Thanks, Justin - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
Re: [Texascavers] ethanol-free gas stations
I have recently bought gas at a pump that had both: ethanol added and ethanol free, at like a nickle or dime difference in price. But I can't recall where it was. Could have been in Alabama or somewhere related to our NSS Convention trip last month. --Ediger On Thu, Aug 2, 2012 at 4:07 PM, Sam Young youn...@centurytel.net wrote: Fritz Holt asked: By the way, can anyone tell me a brand of gasoline or a retail distributor that does not have ethanol in the product? Here is a list of the stations in Texas which have ethanol-free gas. Alas, you will notice that there are no large Texas cities in the list: http://pure-gas.org/index.jsp?stateprov=TX Sam - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com
Re: [Texascavers] Help - speed, tire size change
Above about 70 mph in the ol' Grey Pendejo, the extra gas input from pushing the pedal to the floor almost exactly equalled the extra wind resistance. I think I managed to get that thing up to 75 a couple times in passing situations, and the gas gauge had always noticeably moved after I was done passing. I miss that square beast now and again, but I sure don't miss the 8-10 mph on the highway -- it was like driving a billboard sideways down the road, for all the aerodynamics it had. What was Chevy thinking? On Aug 1, 2012, at 7:13 AM, vivb...@att.net wrote: Another reason you're mileage will drop is that the increased tire diameter will raise you slightly higher relative to the ground, which will increase your wind resistance. Wind resistance is the main reason mileage drops so fast at higher speeds too. -Vivian Loftin --- On Wed, 8/1/12, Mimi Jasek mjca...@gmail.com wrote: From: Mimi Jasek mjca...@gmail.com Subject: Re: [Texascavers] Help - speed, tire size change To: Diana Tomchick diana.tomch...@utsouthwestern.edu Cc: TexasCavers texascavers@texascavers.com Date: Wednesday, August 1, 2012, 12:01 AM Ok, Diana, Nico, and Karl, thanks so much. A lot of what you all said was close to some of what I thought, but you defined it for me. I will use your info to try to solve our problem, and for now just slow down. Lost 5+ mpg, which to me is a lot, for the cookie jar has no funds for stock. If others reply to help, it will be tomorrow before I get back to mail. Last load of laundry calls to be put away, then this tired lady must go to sleep before another work day starts:) Mimi Sent from my iPhone On Jul 31, 2012, at 11:42 PM, Diana Tomchick diana.tomch...@utsouthwestern.edu wrote: Mimi, A simple back-of-the-envelope calculation would be to divide the current tire circumference by the previous tire circumference. This would give you an estimate of the fractional difference the new, larger tire would travel for each revolution of the tire. Using the numbers you supplied gives a value of approximately 1.071. If you are used to driving at 60 m.p.h., in theory the new tires would actually be taking you at 60 x 1.071 = 64.26 m.p.h. Of course this is a pretty simplistic estimate. If you want to maximize your gas mileage, that's a more complicated experiment that would need you to fill your gas tank (be sure to always use the same type of gas--the higher the percentage of ethanol, the lower your mile per gallon), drive a set distance at different speeds and re-fill the tank to see how much you used. Oh, and be sure that the prevailing wind speed and direction is the same every time you repeat the drive at the different speeds. Diana Diana R. Tomchick Professor Dept. of Biochemistry University of Texas Southwestern Medical Center 5323 Harry Hines Blvd. Dallas, TX 75390-8816 (214) 645-6383 (office) (214) 418-5827 (cell) diana.tomch...@utsouthwestern.edu On Jul 31, 2012, at 11:09 PM, Mimi Jasek mjca...@gmail.com wrote: Ok, I need help. I have a Ford Escape that we use as our main caving vehicle due to great gas mileage. Due to age, miles, and need for stronger sidewalls and better traction, we traded our old tires for new. Love them, but because bigger, noticed huge drop in gas mileage at same speeds used to traveling, and I seem to be staying up with or passing everyone!! Old = P235/70R16 normal street tires New = LT245/75R16 E Toyo OPAT OWL 120Q Don't want a speeding ticket, and need my good mpg back, or close to it. Can anyone tell me how much to decrease my speed, and if the reduction is the same for all speeds? If not the same, how much decrease at what increments? I believe my old tires were 28 diameter (spare is that) with 7.33' circumference, and new are 30 with 7.85' circumference. I have to believe there are more than enough math wiz/ tire savvy folks out there to get me some answers, but if I am asking the impossible, tell me. I do have a tachometer as well as a speedometer if that helps. For us, mpg means a lot due to cost of gas, and determines how many trips we make. I would really appreciate any help anyone can give me. Thanks, Mimi Jasek Sent from my iPhone - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com UT Southwestern Medical Center The future of medicine, today. - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com - Visit our website: http://texascavers.com To unsubscribe, e-mail:
texascavers Digest 3 Aug 2012 07:31:42 -0000 Issue 1602
texascavers Digest 3 Aug 2012 07:31:42 - Issue 1602 Topics (messages 20450 through 20468): Re: Help - speed, tire size change 20450 by: Jon Cradit 20455 by: Fritz Holt 20458 by: Mimi Jasek 20459 by: Logan McNatt 20460 by: Mimi Jasek Paging Ryan Fabich 20451 by: Mark.Alman.L-3com.com 16th ICS registration is open! 20452 by: Fofo tire size and mileage 20453 by: Mixon Bill Kiwi Sink dig 20454 by: Gill Edigar Re: Final Revised TSA Members List 20456 by: Fritz Holt 20457 by: Denise P Re: tire change help 20461 by: Mimi Jasek Waller Creek Flood Tunnel 20462 by: Justin Haynes sinkhole collapse captured on video 20463 by: Geary Schindel 2013 International Congress fees 20464 by: Mixon Bill New Rabies Announcement 20465 by: Preston Forsythe ethanol-free gas stations 20466 by: Sam Young Texas Caver on the Karst Information Portal 20467 by: George Veni 20468 by: JerryAtkin.aol.com Administrivia: To subscribe to the digest, e-mail: texascavers-digest-subscr...@texascavers.com To unsubscribe from the digest, e-mail: texascavers-digest-unsubscr...@texascavers.com To post to the list, e-mail: texascavers@texascavers.com -- ---BeginMessage--- That is exactly what I was thinking Philip. Mimi, what you could do is find a stretch of IH35 where you can drive 60mph for several uninterrupted miles. Using the interstate mile markers on the side of the road accurately time how long it takes you to drive several miles at your presumed 60mph. This should let you know how much your speed-o-meter (and od-o-meter) are off. Jon Cradit -Original Message- From: philipm...@juno.com [mailto:philipm...@juno.com] Sent: Wednesday, August 01, 2012 7:31 AM To: texascavers@texascavers.com Subject: Re: [Texascavers] Help - speed, tire size change Mimi, While most everything said is accurate enough, one important factor has been left out. Your current mileage is better than you think; your odometer and speedometer are different measurements by the same instrument. Since your speedometer is under-reporting your speed, your odometer is also under-reporting your mileage. Some of your mileage loss is not lost and is merely appearing to be lost just because you are traveling more miles than your odometer records. If you have an electronic speedometer, like almost all vehicles do these days like my 2001 Dodge, you can have the speedometer recalibrated for not much. I had mine done last month for $16 and it just takes a few minutes. Recalibration helps check your mileage accurately because your nominal or even measured tire diameter is not the rolling diameter and it helps avoid speeding tickets. An example of rolling diameter vs. manufacturer's stated diameter: My tire diameter is 36.3 inches, but according to my GPS and my calculations, my rolling diameter is only 34.75 inches (580 revolutions per mile vs. 555 revolutions per mile). Tires are not steel wheels and have considerable deformation while driving. Philip Moss philipm...@juno.com Woman is 57 But Looks 27 Mom publishes simple facelift trick that angered doctors... http://thirdpartyoffers.juno.com/TGL3141/501921e481b2d21e4584dst51vuc - Visit our website: http://texascavers.com To unsubscribe, e-mail: texascavers-unsubscr...@texascavers.com For additional commands, e-mail: texascavers-h...@texascavers.com ---End Message--- ---BeginMessage--- Much of this technical tire talk is a bit too complicated for me but I have a couple of thoughts on the subject. By the way, can anyone tell me a brand of gasoline or a retail distributor that does not have ethanol in the product? Using corn or even sugar cane is an uneconomical (government) solution to a problem that I doubt exists. Back to gas mileage, tires and speed. The wider the tread (foot print, the greater the rolling resistance. Better gas mileage can be achieved by slightly overinflating the tires to decrease rolling resistance but may result in uneven or greater tire wear in the center of the tire. Starting and stopping produces the greatest wear in overinflated tires, or in any tires. I would recommend inflating about two to three pounds over tire manufacturer's recommendations but never below although it gives a slightly softer ride. By far the biggest deterrent to good gas mileage is speed and a heavy foot while accelerating. The legal speed limits continue to increase in some areas which if exercised, equals lower gas mileage. When the speed limit is 70 and above and you are not in a hurry, driving 10 MPH below the posted limit insures more MPG. Best to ignore the 75 and 80 MPH
