Quantcast
Channel: penny – Hackaday
Browsing latest articles
Browse All 4 View Live

Image may be NSFW.
Clik here to view.

More EL chemistry: Luminescent ink

[Jeri Ellsworth] continues her experiments with electroluminescence, this time she’s making EL ink. The ink she’s looking for is Zinc Sulfate in a solution. The process she chose is to re-dope some...

View Article



Image may be NSFW.
Clik here to view.

Mayor is a hacker and wants to use DIY parking meters

The Mayor of Silverton, Oregon is a hacker and wants to use roll-your-own hardware in the town’s parking meters. It’s not that he thinks he can do a better job than companies selling modern meters...

View Article

Image may be NSFW.
Clik here to view.

Penny and Paper Clip Heat Sinks

A bunch of audio heads over at the Head-Fi forum were discussing handy and quick heat sinking methods, leading to much speculation and conjecture. This finally prompted [tangentsoft] to take matters in...

View Article

DIY 9V Battery

Volta’s pile — the first battery — was little more than silver and zinc discs separated by paper soaked in salt water. A classic classroom experiment is to build a pile from copper pennies, tin foil,...

View Article
Browsing latest articles
Browse All 4 View Live




Latest Images