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A 13-sided tile called “the hat” forms a pattern that covers an infinite plane, yet it cannot repeat, making it a long-sought shape known as an “einstein.” A sample of that pattern is shown here...
A generous man set once went for a picnic with his family. While still on the way, in a deserted place, they ran out of drinking water.They tried in...
Imagine you're in the desert. You're lost. You've been walking for hours. You've run out of water. On the horizon, you see a giant, shimmering puddle of water. "Yippeeeeeeeeee", you shout. You're s...