Kardashev Scale: The Kinds of Alien Civilizations in Our Universe - https://en.wikipedia.org/wiki/Kardashev_scale - http://futurism.com/images/kardashev-scale-the-kinds-of-alien-civilizations-in-our-universe/
history of atomic theory - Google Search
Einstein's Theory of Relativity Explained [by SPACE -- via #tipsographic]. More at tipsographinc.com
I love talking about the electromagnetic spectrum. There is so much more to it than visible light... and electromagnetic radiation is so darned useful.
Helpful Chemistry Things
How Strong is Spaghetti? STEM Challenge for Kids! Create tests to investigate the strength of spaghetti.
Frugal Fun for Boys
fourier transform - Google Search
A beautiful mind
Light is energy that can take on many forms. Radio waves, microwaves, infrared, visible, ultraviolet, X-ray and gamma radiation are all different forms of light. (Illustration: NASA/CXC/M.Weiss)
Large Hadron Collider
Pascal's law and mechanical advantage
Sains & Fizik