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I want to pin this a million times.

Note to self: Petroleum Jelly also glows under black light.

How a cut heals.

Beautiful hand made "geodes" from egg shells and alum powder. Great sciency project!

Aerogel, also know as frozen smoke, is the world’s lowest density solid, clocking in at 96% air. If you hold a small piece in your hand, it’s practically impossible to either see or feel, but if you poke it, it’s like styrofoam. It supports up to 4,000 times its own weight and can withstand a direct blast from two pounds of dynamite. It’s also the best insulator in existence.

The Violinist's Thumb: And Other Lost Tales of Love, War, and Genius, as Written by Our Genetic Code by Sam Kean, who did the Disappearing Spoon.

An EcoSphere is an enclosed glass sphere that houses a complete Ecosystem. Each sphere is filled with micro-organisms, bright red shrimp, algae, and filtered sea water. All these things live harmonisly together in a mini Earth. The shrimp may live for an average of 2 to 3 years, and are known to live over 10 years. A great way to teach kids about ecosystems and the environment. #terrarium #aquarium

A neat - and rather pretty - experiment with density.

ThinkGeek :: Periodic Table Building Blocks. For your little geekling.

Homemade Ice packs: 1 part rubbing alcohol to 3 parts water, gets really cold, but never hardens so you can manipulate it. every athlete should pin this!