I Powered a DC Fan and LED Bulb Using a Hand-Powered Gear Motor | #diy #project #scienceproject

I learn the most interesting and odd things from this app on the daily. Christmas tree lights don’t look like stars, they are just little lights that glow like a normal bulb. Where’s my astigmatism people? Did you know this?! #astigmatism #astigmatismcheck #christmaslights #christmastree #twinklinglights

Suggested accounts

Thomas Edison's Light Bulb

Who Invention incandescent light bulb By Thomas Edison

The battle of the bulb: How the first lightbulb was built