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Today in 1859 (155 years ago), Charles Darwin published “On the Origin of Species.” Happy Evolution Day! pic.twitter.com/Qcp59DAagl

— Charles Bergquist (@cbquist)

November 24, 2014

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Messier 42: Orion Nebula

Credit: ESO

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An impossible triangle. An illusion.

Could this demonstration be the perfect analogy for human consciousness? Are our conscious experiences of the world just a trick produced by our brains? 

To see how this illusion works, and see Professor Nicholas Humphrey explore the magic of consciousness, watch the full video on the Ri Channel.

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Bored on this Saturday morning? Learn what all the terms on this list mean! 

Source

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Our Lady of Alpha Particles

Irene Joliot-Curie (1897 – 1956) 

  Physics and Chemistry

The daughter of Marie and Pierre Curie, Irene Joliot-Curie is a notable scientist in her own right, winning a Nobel Prize in Chemistry with her husband, Frédéric Joliot-Curie, in 1935 for the discovery of artificial radioactivity, making the Curie family the most Nobeled family in history and a significant scientific dynasty.

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Body comparisons. 

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Ørnflya (by B_Olsen)

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Aluminum and Iodine chemical reaction. 

[Click for more interesting science facts and gifs]

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Simple explanation of what radians are. 

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So this is what happens when you mix salts of different metals (Lithium, Strontium, Sodium, Copper, and Potassium) into methanol and then light that sucker.

Pretty colours is what.

Each metal has a different configuration of electrons orbiting in the atom. When the different atoms get energy from the heat, the electrons in the different metals will be excited by a different amount. When they de-excite they release that energy as light. Different metals release different eneriges. Different energies is different colours. The more energy, the violeter the light.

Using different metal salts is also how fireworks do the thing.

See the streetlight yellow in the Sodium (Na)? Well that’s because we use sodium lamps in streetlights

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Footage credit: Colin Delehanty and Sheldon Neill

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Gave me the chills.

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Honestly, on We Heart It.