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Examples of a Brocken Spectre, a phenomenon where a person’s giant shadow appears magnified onto clouds miles away. The shadow from the sun behind the person creates a halo, giving it an angelic appearance. This mostly occurs on any misty mountainsides or cloud banks, and can even be seen from aeroplanes.

Physics: What ink looks like running through soap bubbles

Source: Compilariz on YT

people today with access to more raw information than any other period: the earth is flat

german artilleryman in 1916, who barely washes his own ass: I need to account for the curvature and rotation of the earth when plotting my firing plans

Watching a snowflake grow seems almost magical–the six-sided shape, the symmetry, the way every arm of it grows simultaneously. But it’s science that guides the snowflake, not magic. Snowflakes are ice crystals; their six-sided shape comes from how water molecules fit together. The elaborate structures and branches in a snowflake are the result of the exact temperature and humidity conditions when that part of the snowflake formed. The crystals look symmetric and seem to grow identical arms simultaneously because the temperature and humidity conditions are the same around the tiny forming crystals. And the old adage that no two snowflakes are alike doesn’t hold either. If you can control the conditions well enough, you can grow identical-twin snowflakes! (Video credit: K. Libbrecht)

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Big math news! It’s been thirty years since mathematicians last found a convex pentagon that could “tile the plane.” The latest discovery (by Jennifer McLoud-Mann, Casey Mann, and David Von Derau) was published earlier this month. Full story.

NASA created retro travel posters for different locations in our solar system in hopes of inspiring young people to imagine a future where common space travel is a possibility. 

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