The NSS web site has a new webinar titled "Geophysical applications to the
karst of the Edwards Aquifer, Texas" at
http://caves.org/webinars/index-6.shtml#Geo (to view)
http://caves.org/webinars/Geophysical_Applications-1.mp4 (download 275 MB--will
take a while; NSS has a slow server)
It is by M
FYI, sorry for the short notice.
Geary
Edwards Aquifer Philosophical Society -
aka brown bag luncheon
Wednesday, March 1, 2017 at 11:55 A.M.
Geophysical Imaging of the Critical Zone of Trinity/Edwards Aquifer over the
Haby Fault,
Balcones Fault Zone, Texas, USA
By Dr. Mustafa Saribudak a
The March NSS News, now newly available to NSS members at caves.org, has an
article about using conventional LIDAR data to survey a cave. A considerably
easier way to do that is described in an article in the Journal of Cave and
Karst Studies at
https://caves.org/pub/journal/PDF/v76/cave-76-03-
I've been LIDAR scanning caves here in Texas for the past 3 years with the
Caveatron. Like the system in the article, you scan while moving through the
cave rather than on a tripod, plus the Caveatron is like the DistoX in that you
also use it to collect your survey data. The Australian system d
Not only has Joe done work in Texas, he has also come out to NM to assist our
teams in Fort Stanton Cave where we made him wade through some water and mud to
get back to Don Sawyer Memorial Hall, about a mile into the cave. His 3D data
has complimented the 3D mesh of sections of the cave where w
Apologies to Alex and the rest of the NSS web team. When I criticized the speed
of the NSS server, I wasn't aware that I had not completely revised my Internet
access to my new place, and it had defaulted to a slower Wi-Fi when I restarted
computer. Still, there is some hangup somewhere between
Bill, 2MB/sec is 2 megabytes per second, or 16 megabits/second. Older wifi
(802.11b) has a theoretical max of 11 megabits/second, but you can rarely
get that high. Newer wifi (802.11g - 54mbit, n - 600mbit, ac - 1300mbit)
can go higher, but there are a lot of things that can interfere, especially
I thought that perhaps Shrewsbury had misspelled the name. I inquired
and received this reply:
/Hi Sam, It is Bob Thrun, of Maryland, and a caver who primarily pushed
stuff in West Virginia. Bob Thren, as you know, is another person. Wm/
Now, does anyone know whatever happened to Bob Thren?
Charles (only)-- Thanks. I now get ~2MB/sec from NSS, which is good enough.
Time-Warner's (Spectrum's) own speed test gives me 70 Mb/sec download and 10
Mb/sec upload. My current Wi-Fi router is using 5G, whatever that means, but
the large number of other Wi-Fi hubs in the area may be cluttering
Bob Thren is listed in the 2016 NSS Members Manual as living in Lexington, VA.
I still see him at caver gatherings like OTR.
Mark Minton
mmin...@caver.net
On Wed, 1 Mar, 2017 at 3:55 PM, Sam Young wrote:
To: Texascavers@texascavers.com
I thought that perhaps Shrewsbury had misspelled the n
I remember Bob (Thrun that is) from what seems to me like the dawn of
time. During the mid to late 60s the Washington DC area cavers were an odd
lot,
lots of CIA spooks and autistic technogeeks like Bob. He took caving very
seriously and was methodical in all matters. Having a peach imspedi
He is alive and well. He is still caving. Helps on a lot of conservation
projects, digs and region projects. He lives on the side of a mountain in
Lexington, Virginia Carol
From: Sam Young
To: Texascavers@texascavers.com
Sent: Wednesday, March 1, 2017 3:55 PM
Subject: [Texascavers] Bo
He is alive and well. He is still caving. Helps on a lot of conservation
projects, digs and region projects. He lives on the side of a mountain in
Lexington, Virginia Carol
From: Sam Young
To: Texascavers@texascavers.com
Sent: Wednesday, March 1, 2017 3:55 PM
Subject: [Texascavers]
Bob Thrun, 77, always had a full gray beard, a shaggy beard some would say. I
caved with him in Mexico on one trip, mid-70's, southwest of Veracruz in the
sugar cane growing area with limestone ridges and some good caves. If you caved
with him you would remember his detailed sketching with his b
(Apologies if this appears twice, had a pooter glitch)
I remember Bob (Thrun that is) from what seems to me like the dawn of
time. During the mid to late 60s the Washington DC area cavers were an odd
lot,
lots of CIA spooks and autistic technogeeks like Bob. He took caving very
seriously
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