MythBusters

MythBusters (2003)

0 mistakes in Penny Drop/Deadly Microwaves/Radio Tooth Fillings

(1 vote)

I'm afraid there's nothing listed for this episode. Add something here!

Scottie: Maybe it's a myth that methane is flammable.
Adam: It's not a myth. We're just idiots.

More quotes from MythBusters

Answer: A more complex and complete answer probably isn't possible here, since we're dealing with fluid dynamics, pressure, boundary levels, etc. A simply answer would the air in the bed is kept there by the fast moving air coming off the roof of the cab. If there was no "secondary bubble" of air, you would have a vacuum in the bed. When air comes off the roof, it needs a place to touch down, which it is able to do with the top of the tailgate. The fast flowing air moving over the bed keeps the air that's already inside the bed from "escaping." However, the air in the bed is still moving and creates a vortex in the bed, which is described as a bubble. When the tailgate is down, the air coming off the roof will gather at the back of the cab and create drag.

Bishop73

More questions & answers from MythBusters

Join the mailing list

Separate from membership, this is to get updates about mistakes in recent releases. Addresses are not passed on to any third party, and are used solely for direct communication from this site. You can unsubscribe at any time.

Check out the mistake & trivia books, on Kindle and in paperback.