Should You Build or Buy a 5V USB Portable Solar Power Charger?

Should You Build or Buy a 5V USB Portable Solar Power Charger?

In this video, GreatScott! takes a closer look at a commercial 5V USB portable solar power charger. After measuring its output power and pretty much... Details
World’s Largest Batteries

World’s Largest Batteries

Practical Engineering explores a scalable (and unexpected) means of mass energy storage. Electricity faces a fundamental problem that comes with pretty much any product that’s... Details
Solar Powered WiFi

Solar Powered WiFi

Crosstalk Solutions experiments with running a NanoStation wireless bridge off of a small solar panel array. Very cool. Details