Popular mythconceptions

   / Popular mythconceptions #231  
Always best to warm the car up 10 minutes before driving it, 1/2 hour if it's a Ford.
 
   / Popular mythconceptions #232  
I don't own a GPS and before I had a compass in my truck, I would look for satalite dishes for direction.
 
   / Popular mythconceptions #233  
Someday they will put a man on the moon.........
 
   / Popular mythconceptions #234  
How? It's not even real! Maybe this time with CGI. Remember to make a little crater this time from the thrust of the engines!
 
   / Popular mythconceptions #236  
You can use your old spark plugs in simple projects to make FREE zero point energy.
 
   / Popular mythconceptions #237  
Always best to warm the car up 10 minutes before driving it, 1/2 hour if it's a Ford.
I had a Dodge that wouldn't climb the slightest incline in cold weather until I drove it for at least 20 minutes. The sad part was that I lived on a flat between two hills, so had to keep driving back and forth until it warmed up enough for the transmission to stop slipping. The saddest part though was that I had just bought it brand new (not rebuilt) from Dodge, it came from the factory with a bad pump.
 
   / Popular mythconceptions #238  
Leaving a tractor block heater plugged in all the time, all winter won't use any more energy than just plugging in some period before use.
 
   / Popular mythconceptions #239  
The only logical idea I致e ever heard is a small gravel puncturing the bottom of the battery where that probably wouldn稚 have happened on a different surface. Another possible outcome would be the battery eating the concrete. As for killing the battery I have no idea how that痴 supposed to happen.

I always thought it was from the days when battery cases were made of glass, and setting one on concrete would be a risk of breakage.
 
   / Popular mythconceptions #240  
Concrete is usually quite conductive and placing a battery on concrete will in fact create a capacitor in effect, using the plastic bottom as the dielectric. BUT, a capacitor only passes AC, not DC, so that still doesn't explain it. The only other thing I could think of would be a usual temperature difference between ambient and the floor being colder.
 

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