New and Interesting Things

What did Apollo 13 astronauts see on the far side of the moon? | The Kid Should See ThisUsing data from the Lunar Reconnaissance Orbiter, this 4K NASA Goddard visualization depicts what the Apollo 13 astronauts saw on the far side of the moon.

Russian Multiplication, an astonishing way to multiply | The Kid Should See ThisRussian Multiplication, an astonishing math trick described by Johnny Ball for Numberphile. Use “any figures you like.” Ball assures us that it always works.

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