Corrected entry: In testing the Point Break catch up myth, the Myth Busters demonstrated that Keanu Reeves could indeed have caught up with Patrick Swayze in freefall. But, understandably, they did not test what would have happened if he had. Several years ago, two members of the U.S. Army's Golden Knights parachute team had a similar (but unintentional) mid-air collision. One of them died instantly, while the other survived but lost both his legs.
MythBusters (2003)
1 corrected entry
Starring: Adam Savage, Jamie Hyneman, Kari Byron, Robert Lee
Genres: Documentary, Mystery
Revealing mistake: When Jamie sits down after rappelling down the canyon wall you can see that he has climbing rope attached to his harness. It's wrapped in duct tape to look like its the rope he and Adam made of duct tape. This may just be a safety line to support his weight if he duct tape rope snaps, but the Mythbusters usually point out any backup safety systems and explain that they are there for caution and don't contribute to the test. (This was explained in the aftershow. It was a safety line required by the shows insurers).
Scottie: Maybe it's a myth that methane is flammable.
Adam: It's not a myth. We're just idiots.
Seasickness: Kill or Cure - S3-E24
Question: Why does a separated bubble form when you drive with your tailgate up?
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.
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Correction: Well, first of all, that's not a factual error. As you said, they were testing if he could catch up... not what would happen to him. Although, to indulge you, when they made the movie, the stunt men in the scene actually did tackle each other mid-air as depicted in the movie. An unintentional freak accident doesn't invalidate that. That'd be like me saying "Not EVERY car accident is fatal" and then you countered with "No, that's a mistake because SOME are."
TedStixon