PopSci intern Jack Izzo talks about the deepest hole EVER. Plus, Rachel explains contagious sleepiness throughout history, and Sara Kiley divulges the captivating story of the woman who invented the dishwasher. The Weirdest Thing I Learned This Week is a podcast by Popular Science. Share your weirdest facts and stories with us in our Facebook group or tweet at us! Click here to learn more about all of our stories!  Links to Rachel's TikTok, Newsletter, Merch Store and More: https://linktr.ee/RachelFeltman  Link to Jess' Twitch: https://www.twitch.tv/jesscapricorn -- Follow our team on Twitter Rachel Feltman: www.twitter.com/RachelFeltman Produced by Jess Boddy: www.twitter.com/JessicaBoddy Popular Science: www.twitter.com/PopSci Theme music by Billy Cadden: https://open.spotify.com/artist/6LqT4DCuAXlBzX8XlNy4Wq?si=5VF2r2XiQoGepRsMTBsDAQ Don’t forget to subscribe to the podcast for free wherever you're listening or by using this link: bit.ly/WeirdestThingILearnedThisWeek Check out Weirdest Thing on YouTube: bit.ly/WeirdestThingILearnedThisWeekYouTube If you like the show, telling a friend about it would be amazing! You can text, email, Tweet, or send this link to a friend: bit.ly/WeirdestThingILearnedThisWeek Thanks to our Sponsors: Right now, get up to 55% off your subscription when you go to https://Babbel.com/WEIRDEST Babbel—Language for life. Get 15% off OneSkin with the code [WEIRDEST] at https://www.oneskin.co/ #oneskinpod Treat yourself to the best shapewear on the market and save 20% Off at honeylove.com/WEIRDEST. Learn more about your ad choices. Visit podcastchoices.com/adchoices