Re: gEDA-user: physicists (Re: new footprint guidelines)

2010-10-07 Thread John Doty

On Oct 6, 2010, at 12:40 PM, Dave N6NZ wrote:

 I think a lot of people confuse the difference between a theoretical 
 physicist and an experimental physicist.
 
 A theoretical uses a whiteboard and marker.  He/She writes a paper.
 
 An experimental physicist reads the paper and goes -- Oh, really?.  He/She 
 constructs experimental apparatus using scrap metal, some custom glassware 
 from the chemistry department glass blowing shop, an expensive sensor robbed 
 off of last year's project, a chunk of stainless steel turned on a lathe by 
 his/her own hands, some computer software, a little liquid nitrogen, and of 
 course duct tape. He/She writes another paper.

My entry into astrophysics was observing far infrared using stratospheric 
balloons. While the gondola had a nice rigid core structure, anything that 
didn't need rigidity we attached to the structure with white duct tape (the 
usual grey kind tends to melt in sunlight when there's not enough air around to 
carry off the heat). After that project, I moved on to shorter wavelengths, but 
some of the other folks stayed with IR. 10 years and three generations of 
telescope later, they launched IRAS (http://en.wikipedia.org/wiki/IRAS). There 
wasn't any duct tape in that...

 
 The theoretical reads the second paper and has one of two reactions:
 a) I told you so.
 b) Well, that sucks.
 
 -dave (an EE with physicist friends)
 
 On Oct 6, 2010, at 10:22 AM, John Doty wrote:
 
 
 On Oct 1, 2010, at 3:55 PM, Rick Collins wrote:
 
 Oh, I almost forgot, NEVER ask a PhD anything to design PCBs.  What the 
 heck are you thinking???
 
 Speaking as a physicist, let me comment.
 
 1. Learning to do a variety of engineering tasks is an important part of an 
 experimental physicist's education. A good experimental physicist must be a 
 more versatile engineer than most engineering specialists. This is exactly 
 the kind of job a  Ph.D. student *should* be doing.
 
 2. The specific problem mentioned was a super noiseless detector circuit. 
 Few EE's understand detector physics or noise physics well enough to tackle 
 this.
 
 John Doty  Noqsi Aerospace, Ltd.
 http://www.noqsi.com/
 j...@noqsi.com
 
 
 
 
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John Doty  Noqsi Aerospace, Ltd.
http://www.noqsi.com/
j...@noqsi.com




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gEDA-user: physicists (Re: new footprint guidelines)

2010-10-06 Thread Dave N6NZ
I think a lot of people confuse the difference between a theoretical physicist 
and an experimental physicist.

A theoretical uses a whiteboard and marker.  He/She writes a paper.

An experimental physicist reads the paper and goes -- Oh, really?.  He/She 
constructs experimental apparatus using scrap metal, some custom glassware from 
the chemistry department glass blowing shop, an expensive sensor robbed off of 
last year's project, a chunk of stainless steel turned on a lathe by his/her 
own hands, some computer software, a little liquid nitrogen, and of course duct 
tape. He/She writes another paper.

The theoretical reads the second paper and has one of two reactions:
a) I told you so.
b) Well, that sucks.

-dave (an EE with physicist friends)

On Oct 6, 2010, at 10:22 AM, John Doty wrote:

 
 On Oct 1, 2010, at 3:55 PM, Rick Collins wrote:
 
 Oh, I almost forgot, NEVER ask a PhD anything to design PCBs.  What the 
 heck are you thinking???
 
 Speaking as a physicist, let me comment.
 
 1. Learning to do a variety of engineering tasks is an important part of an 
 experimental physicist's education. A good experimental physicist must be a 
 more versatile engineer than most engineering specialists. This is exactly 
 the kind of job a  Ph.D. student *should* be doing.
 
 2. The specific problem mentioned was a super noiseless detector circuit. 
 Few EE's understand detector physics or noise physics well enough to tackle 
 this.
 
 John Doty  Noqsi Aerospace, Ltd.
 http://www.noqsi.com/
 j...@noqsi.com
 
 
 
 
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 geda-user@moria.seul.org
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Re: gEDA-user: physicists (Re: new footprint guidelines)

2010-10-06 Thread David C. Kerber
 

 -Original Message-
 From: geda-user-boun...@moria.seul.org 
 [mailto:geda-user-boun...@moria.seul.org] On Behalf Of Dave N6NZ
 Sent: Wednesday, October 06, 2010 2:41 PM
 To: gEDA user mailing list
 Subject: gEDA-user: physicists (Re: new footprint guidelines)
 
 I think a lot of people confuse the difference between a 
 theoretical physicist and an experimental physicist.
 
 A theoretical uses a whiteboard and marker.  He/She writes a paper.
 
 An experimental physicist reads the paper and goes -- Oh, 
 really?.  He/She constructs experimental apparatus using 
 scrap metal, some custom glassware from the chemistry 
 department glass blowing shop, an expensive sensor robbed off 
 of last year's project, a chunk of stainless steel turned on 
 a lathe by his/her own hands, some computer software, a 
 little liquid nitrogen, and of course duct tape. He/She 
 writes another paper.

You forgot the WD-40, the other essential item for any project (duct tape is 
the first).


 
 The theoretical reads the second paper and has one of two reactions:
 a) I told you so.
 b) Well, that sucks.
 
 -dave (an EE with physicist friends)
 
 On Oct 6, 2010, at 10:22 AM, John Doty wrote:
 
  
  On Oct 1, 2010, at 3:55 PM, Rick Collins wrote:
  
  Oh, I almost forgot, NEVER ask a PhD anything to design 
 PCBs.  What the heck are you thinking???
  
  Speaking as a physicist, let me comment.
  
  1. Learning to do a variety of engineering tasks is an 
 important part of an experimental physicist's education. A 
 good experimental physicist must be a more versatile engineer 
 than most engineering specialists. This is exactly the kind 
 of job a  Ph.D. student *should* be doing.
  
  2. The specific problem mentioned was a super noiseless 
 detector circuit. Few EE's understand detector physics or 
 noise physics well enough to tackle this.
  
  John Doty  Noqsi Aerospace, Ltd.
  http://www.noqsi.com/
  j...@noqsi.com
  
  
  
  
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