EEVblog #881 - Fontus Self Filling Water Bottle BUSTED!

Dave does basic back-of-the-envelope thermodynamic calculations to prove the Fontus Airo & Ryde self filling water bottle campaign on Indiegogo is full of hot air instead of water. It’s 100% baloney! Hang around for the surprise ending! Forum: !/ EEVblog Main Web Site: The 2nd EEVblog Channel: Support the EEVblog through Patreon! EEVbl