Can you answer the spool riddle? Special guest Anne Wojcicki joins Physics Girl for the answer(s?!) to the hiker riddle and to hear the next riddle in the series.
First Video: https://youtu.be/BnxG0RqP080
Creator: Dianna Cowern
Editor: Jabril Ashe
Animator: Kyle Norby
Thanks to: Anne Wojcicki, the 23andMe staff and Dan Walsh
I first heard this riddle from Derek Muller of Veritasium during a talk he gave. It stuck with me as a fun hands-on riddle to ask in person. Plus he gave me his blessing to use it in a video. He hates riddles anyways.
Keep up with my less sciencey shenanigans: