What's this little sucker?
01-30-2006, 12:23 PM
#41
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My Ride: #1: 2004 545i; 6-speed manual; Sport Package; Mystic Blue with a gray leather interior and Anthracite wood; CWP; Logic 7.
#2: 2010 535xi Touring; Automatic.
The only sense in which wind chill matters to inanimate objects is that they will approach the true temperature more quickly. If a car is warm and parked at 0 degrees with no wind (like in a garage), it will not hit 0 degrees for quite a while, due to the buildup of layers of warm air immediately around the car; but if that warm car is parked at 0 degrees and a 50 mile per hour wind, it will approach 0 far more quickly.
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Hmmmm. I guess I just think of it as: higher winds decrease the relative time it takes things to reach ambient temperature. Whether that's rate of heat transfer or wind chill, I'm not in a position to speak technically. Maybe wind chill takes into account the moisture of the skin, for example, whereas the other assumes dry conditions. No idea. I see I'm not using wind chill technically correctly then.
01-31-2006, 12:05 PM
#42
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Exactly correct. 'Wind chill' will only relate to damp things (like us). Anyone familiar with wet and dry bulb hygrometers?
Just had another thought. Friction. If we can get enough speed, we should be able to hit 130C (270F) at around Mach 2 (but only because the probe is exposed)
Just had another thought. Friction. If we can get enough speed, we should be able to hit 130C (270F) at around Mach 2 (but only because the probe is exposed)
01-31-2006, 12:47 PM
#43
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My Ride: E90 M3
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Sorry to hear that miss525i! 
02-12-2008, 10:57 AM
#44
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My Ride: 08 550 Carbon Sport Almost everything factory, but no sound upgrades.
Suppose it is raining? Rapid evaporation would cool the thingy. That would be wind chill.
02-12-2008, 01:07 PM
#46
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Originally Posted by w8pmc' post='231752' date='Jan 30 2006, 06:32 AM
I noticed this on my new car that i collect today & after asking the question the dealer said he thought it was an external temp sensor. Reason i asked is that it's over twice the size on my car than the photo you've posted & the other E60's that were parked close by, so my guess is that the 535D M-Sport needs a larger one, although for the life of me i can't work that out. I'd hoped ot was a radar jammer or something. They do look a little overkill for a temp sensor, but if that's what they are then fine.
It's called German design optimization.
02-12-2008, 03:48 PM
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My Ride: 2008 BMW 550i
2006 BMW X3
Originally Posted by SkiScubaSailDude' post='231940' date='Jan 30 2006, 11:57 AM
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