The Crazy Physics Of A Helium Balloon In An Accelerating Vehicle (Video)

When you accelerate in your car, your body and anything that happens to be attached to your car (like a necklace hanging from the rearview mirror) will move backwards right? Well, yes, unless that thing is a helium balloon.

Check out this awesome video from Smarter Every Day that explains the wacky behavior of a helium balloon in an accelerating vehicle.

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