From: clare@snyder.on.ca   
      
   On Sun, 19 May 2024 16:38:31 -0700, Bob La Londe    
   wrote:   
      
   >On 5/19/2024 4:29 PM, Bob La Londe wrote:   
   >> On 5/19/2024 4:17 PM, Jim Wilkins wrote:   
   >>> "Bob La Londe"  wrote in message news:v2djrv$3hfus$1@dont-email.me...   
   >>>   
   >>> On 5/18/2024 7:33 PM, Jim Wilkins wrote:   
   >>> ...   
   >>>   
   >>> I never was employed doing destructive testing, but I did spend a decade   
   >>> or two doing low voltage communication contracting.  I learned there is   
   >>> what they say, and there is what there is.  Usually what they say fell   
   >>> short in my field, but sometimes it didn't.   
   >>>   
   >>> When they say an IR motion sensor will detect motion at 90 feet they   
   >>> mean if ambient is below 70F and the subject is large and is running a   
   >>> fever.  LOL.  They don't say if ambient is 90+ its virtually worthless.   
   >>>   
   >>> ---------------------   
   >>> Most of the testing was to find and reject or reclassify parts that   
   >>> didn't meet specifications for companies that cared, or burn-in   
   >>> testing to weed out early failures by operating at elevated   
   >>> temperature for a week. The exact conditions were usually secret, I   
   >>> had to provide a range of adjustment. Sometimes there had to be   
   >>> provision for destructive failure, such as Chrysler Lean Burn engine   
   >>> controllers with components not rated for possible under-hood   
   >>> temperatures.   
   >>>   
   >>> Before Congress mandated emissions and fuel economy standards that   
   >>> needed electronic control to meet, the only electronic device in a car   
   >>> was the radio which the auto makers bought, they had to hire new   
   >>> engineers unfamiliar with the heat, water, dirt, salt and vibration,   
   >>> who took time to learn. I had the partial advantages of military   
   >>> electronic experience which solves those, in commercially unaffordable   
   >>> ways, plus a hands-on apprenticeship in custom electro-mechanical   
   >>> machine design. The engine compartment environment can be nearly as   
   >>> challenging as military aircraft specs, consider a snow plow driver in   
   >>> Alaska starting cold and diving full throttle into the deep snow in   
   >>> front of the truck, or splashing through an icy puddle.   
   >>>   
   >>> Heat in the South is another issue that's not so evident in Michigan.   
   >>> I know what Atlanta is like in summer.   
   >>>   
   >>   
   >>   
   >> Bell Labs had material test sites down here in the Sonoran Desert for   
   >> environmental testing.  Death Valley may be the only place in North   
   >> America more hostile than the low Sonoran Desert.  They had panels setup   
   >> with material samples affixed out along the southern rail line right of   
   >> way.  Maybe they still do (if they are still some form of Bell Labs).  I   
   >> haven't checked in a long time.   
   >>   
   >>   
   >>   
   >   
   >I'm not a fan of Michigan weather.  My wife used to go to the Wheatland   
   >Music festival every year and of course she convinced me to go one time.   
   >  Middle of summer.  Should have been fine.  It rained everyday (most of   
   >the day) and we camped out.  I was cold and wet the entire time, and of   
   >course I felt like I came down with a cold the second day... and she   
   >volunteered us to work the info booth one shift every day.  Can't say   
   >how many times I said, "Ice truck is that," "Bathrooms are that way."   
   >   
   >When I was a kid I wanted to live where there was snow and trees.   
   >Now...  No. I am good right here.  Yeah the heat is miserable, but its   
   >familiar, and my office is air conditioned.  Actually, so is my main CNC   
   >machine room now.  The rest of the shop... well an ice tea tastes so   
   >much better when I get out of the main shop and back into the office.   
   >   
   >--   
   >Bob La Londe   
   >CNC Molds N Stuff   
    You can put on extra clothes until you are warm - you can't take off   
   enough to be cool - - -  Personally There is no place like the area   
   dead between the lakes in South Western Ontario. In the summer it can   
   be uncomfortably warm and humid for a few weeks- sometimes not even   
   cooling off over night - so  air conditioning (in home and car) is   
   pretty well mandatory - and we get numerous thunder storms - but we   
   are just south east of Ontario's "tornado alley"so seldom get SERIOUS   
   storms - and the winter is moderated by the lakes as well - very   
   seldom get long periods of VERY cold weather - and in the little   
   stretch of heaven called Waterloo Region we've been in something of a   
   "snow shadow" for the last several decades, getting less snow than   
   areas to the North, west, and even south ( as little as 15 miles away   
   can have significantly more snow).   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)