I made a clock charge a cellphone it was very simple <a href="https://www.youtube.com/watch?v=ZX34d7zC9SQ&feature=youtu.be" target="_blank" rel="nofollow noopener noreferrer">- YouTube</a> no one else in the world can even think such a thing...

I made a clock produce electricity it was really simple ( with the help of a mechanic only because I am not good at aligning gears to make it look...

[Prototype]I doubt it can charge cell phones. Anyway, I would like to reiterate the law of conservation of energy here. "Energy can neither be created, nor be destroyed. It can...

I made a clock make electricity <a href="https://www.youtube.com/watch?v=ZX34d7zC9SQ&feature=youtu.be" target="_blank" rel="nofollow noopener noreferrer">- YouTube</a> it can charge a cellphone and small devices my piece is unprofessional and I need the piece...

Sharvari PanchbhaiBy analyzing the observations from the NASA's Chandra X-ray Observatory (CXO), formerly known as Advanced X-ray Astrophysics Facility (AXAF), astronomers have discovered black hole eruptions by examining the group...

again I am sorry I have a disability that prevents me, I have no other option

yes , my problem is I suffered a disability that makes it that I require to have my cellphone operational , many people have said I don't deserve to have...

a A.V.RamaniThere are many hand cranked devices in the market. I had a squeeze operated flash light more than sixty years back. The unit sits in the hand. One just...

Ankita KatdareHi #-Link-Snipped-# Welcome to CrazyEngineers. The news you are pointing at is quite old. Satoshi Yanagisawa, who designed it, is a product/industrial designer. It was just in his imagination...

<a href="https://www.thingiverse.com/thing:38787" target="_blank" rel="nofollow noopener noreferrer">Uniform and scalable reduction gear (1:256) by mattheus - Thingiverse</a> <a href="https://www.thingiverse.com/thing:38787" target="_blank" rel="nofollow noopener noreferrer">Uniform and scalable reduction gear (1:256) by mattheus - Thingiverse</a>...