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Home🌌Off Topics🌌Off Topics Main Discussion › Downwind faster than the wind
NEW  07-15-2021 02:20 AM  9 days ago
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spork

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Mountain View, CA

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Downwind faster than the wind
Many years ago I posted a little brain teaser I came up with here on RunRyder. As some may recall, it got way out of hand, so a buddy and I built this downwind vehicle and set two world records with it. Recently, Derek Muller of Veritasium decided to make a video about it.

Watch at YouTube

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NEW  07-15-2021 02:24 AM  9 days ago
spork

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The video was initially getting about 1 million views per day. And almost immediately, Alex Kusenko, a UCLA physics professor bet Derek $10,000 that he'd been had. They had Sean Carrol, Bill Nye, and Neil deGrasse Tyson witness the bet.

A few days later, Kusenko conceded. But his "concession" read like "well, I was actually mostly right, and they were actually mostly wrong, but I'm going to concede on a technicality". He followed that with an explanation of what's "really" happening. And is is almost universally the case, he is completely wrong about that too.

Derek made a follow-up video about the bet and giving more detail on how and why the Blackbird works as it does...

Watch at YouTube

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NEW  07-15-2021 02:28 AM  9 days ago
spork

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Derek decided to use the $10K as prize money for a video contest. People have to make 1-minute videos explaining something they feel is counter-intuitive. So I made one on gyroscopic precession - which explains why our rotor heads work as they do.

If I win any of the prize money, I intend to donate it to budding young engineers to take Mark Rober's (of Confetti Bomb fame) engineering course.

Viewing my 1-minute video will help make sure it's considered in the contest.

Watch at YouTube

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