This ‘two-faced’ membrane can create electricity—from nothing but salty water

Nature loves balance. Ever sprinkle salt on a piece of eggplant? Over time, the eggplant starts to sweat out water. This happens because there is a different ratio of salt to water on the surface versus inside the eggplant, so water seeps out onto the surface to try and equalize how salty the water is […]

The science of static electricity – Anuradha Bhagwat

It can strike without warning, at any moment. You may be walking across a soft carpet and reaching for the door knob when suddenly…zap! To understand static electricity, we first need to know a bit about the nature of matter. All matter is made up of atoms that consist of three types of smaller particles: […]

DIY Corner Clamp / Jig (Updated Version Available) Superseded

I have already started on this project but thought other people might be interested I’m going to make a corner clamp Just a piece of metal. I can use regular C clamps like this Clamp stuff to it at 90 degrees which is useful This is 8 x 8 inch that I made a while […]