Can You Charge A Phone with Marbles?

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Try Brilliant for FREE for 30 Days: https://brilliant.org/Engineezy (This will also get you 20% off the annual premium subscription) Check out the Engineezy merch featured in this video: https://engineezy.com/collections/merch I have a bunch of cool mechanical 3d print files available on my website: https://engineezy.com Or Become an Engineezy Thangs Member and get access to 2+ premium files every month: https://thangs.com/designer/engineezy The Wintergatan Holy Grail Divider Video: https://youtu.be/Y83I8mLKufo?si=KmuEE3y7AniLzQCC Tom Stanton’s Generator: https://youtu.be/tb3iN4m9Bik?si=D2Lxqady8LX7COfi Here are a bunch of articles about different renewable energy storage systems in the works: https://spectrum.ieee.org/collections/energy-storage/?promo=promo My 3D Printers: Bambu Lab: https://tidd.ly/3Mye3xG Prusa: http://www.prusa3d.com/#a_aid=Engineezy This is the Laser Cutter I use for all my projects: https://www.xtool.com/?ref=rNX8YcbzlXsW8J&utm_medium=5306&utm_source=influencer This is the filament I use for all my projects: https://geni.us/sdT9QBj I also have a Patreon if you want to see some exclusive behind the scenes content: https://www.patreon.com/engineezy The electric screwdriver I used to assemble and disassemble this thing many times is a game changer: https://geni.us/f6oJ Can you harvest the energy of falling marbles to charge a phone? In this video, I take you through the incredibly complex engineering process required to answer this simple question. From converting a stepper motor into a working generator using a full bridge rectifier, to powering this generator with a marble-paddle wheel, to feeding the paddle wheel with hundreds of marbles- there were some interesting challenges I encountered along the way, and some satisfying solutions. This is probably the world's least efficient way to store energy, but it might be the most fun.