Tuesday, March 12, 2013

Vintage film explaining how a differential gear works

This film does an admirable job of clearly explaining what can be a rather confusing mechanical concept -- the differential gear. It's Tuesday, and you owe it to yourself to learn a little something. If you already know how a differential gear works, I'm sure you'll also enjoy the charming retro qualities of this film!

True, we normally hear differentials in cars, but they've had other some intriguing uses in the past. Take for example the amazing South-pointing chariots created in ancient China. A carved wooden figure standing in a horse-drawn chariot would point South no matter which way the cart turned or how often. This was done with a differential.

Here is where you can get a wooden South-pointing chariot kit!

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Anonymous Anonymous said...

I enjoyed this movie in retro charm really. That's the best explanation so far. The end is very expressive.
Michael (alias michael42er)

March 12, 2013 at 1:49 PM  
Anonymous Anonymous said...

bonjour! for the first time I understand the principle of the differential! It was one of the big mystery in my life!!! (and i watch a lot of pictures and explanations before!) thanks a lot

May 8, 2013 at 6:55 AM  

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