I Found The Best Hand Warmer! One Clear Winner!

From Project Farm. Hand Warmers were tested for their peak temp on the high heat setting, peak temp on low heat setting, comfort, run time on the highest heat setting, maximum temperature in cold weather, battery charge time, time to reach 120 degrees F, battery capacity, and maximum wattage. Brands: DeeKom, Funaudio, UNIHAND, Mstoekn, Kesguar,…

An Unexpected Twist on Möbius Strips – Numberphile

From Numberphile. Ben Sparks uses simulations for a new insight into Möbius loops. More links & stuff in full description below ↓↓↓ Ben Sparks: https://www.bensparks.co.uk More Ben Sparks on Numberphile: http://bit.ly/Sparks_Playlist Möbius videos on Numberphile – https://www.youtube.com/playlist?list=PLt5AfwLFPxWLX3Y7d3Hqq-qcsDTRaZef6 Ben’s Geogebra file for this video – https://www.geogebra.org/m/v5z33vth Patreon: http://www.patreon.com/numberphile Numberphile is supported by Jane Street. Learn more…