DIY

Building a Worldwide Map of Light Pollution

As someone that has always lived in the UK countryside I am no stranger to the glory of a dark…

3 months ago

Catching Sunlight: A TEDx Talk by DIY Solar Photographer Alan Friedman

Video poster frame shows Alan Friedman's 90mm hydrogen alpha telescope setup -- nicknamed "Little Big Man" -- on an Astro-Physics…

12 years ago