4 Revolutionary Riddles

Can you solve these four rotation-related riddles?
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Jeff Straathof, Zach Mueller, Ron Neal, Nathan Hansen

I came across these four physics puzzles over the years in discussions with Neil deGrasse Tyson (riddle 4: which part(s) of a moving train are going backwards with respect to the ground?), Simon Pampena (riddle 2: run around a track twice, the first time slowly, the second time much faster so that the average for the two laps is twice the speed of the first lap). Someone tweeted me a video of the mystery cylinder rolling down the ramp in riddle 1 (sorry I'm not sure who it was). Riddle three about a bicycle going forward or backward when it's bottom peddle is pulled back was brought to me by a number of people and I appreciate all of their help!

Filmed by Raquel Nuno.
Thanks to everyone at the Palais de la Decouverte! I've had this footage for five years and am only finally releasing it now. I wanted to talk about the way grass grows on a spinning turntable but I couldn't locate the footage...

BetaSeries' opinion

Unveil the Unseen: Dive into the World of 'Captain Disillusion'

In today's digital age, where information is at everyone's fingertips, it's easy to get swept away by seemingly unbelievable content that inundates our screens daily. Whether it's a mind-boggling viral video or an uncanny photo circulating online, distinguishing fact from fiction has become increasingly challenging. Enter 'Captain Disillusion,' a TV series that not only entertains but educates viewers on deciphering the truth behind visual fakery.

The first season of 'Captain Disillusion' introduces us to a world where appearances are often deceptive, and what you see isn't always what you get. Our titular hero, Captain Disillusion, steps up to guide audiences through this labyrinth of digital deception with his signature blend of humor and analytical prowess. With 106 episodes in its debut season, there's no shortage of content for eager minds ready to learn about the intricate art of debunking.

Each episode serves as a masterclass in skepticism and critical thinking, starting with Episode 1, where Captain Disillusion confronts the bizarre concept of violent penguins and tackles attention-seeking visual effects creators. As we move into Episode 2, the captain turns his vectorscope towards Japan's digital curiosities, unraveling their mysteries with precision.

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