Scientists Facts

Miners in Mexico found a hidden cave in 2000 with the largest crystals on Earth. The crystals were white gypsum beams up to 37 feet long and 3 feet wide. The heat inside hit 136 degrees with near-total humidity. Without a cooling suit, a person can die within about 10 minutes. In 2015, the mine flooded and sealed the cave shut.

Lonnie Johnson, a NASA engineer, invented the Super Soaker by accident - a burst of water shot across his bathroom during a heat pump experiment. The toy went on to sell nearly $1 billion. When Johnson discovered Hasbro had underpaid his royalties for years, he took them to arbitration and won $72.9 million.

Temple Grandin got down inside the cattle chutes at Arizona feedlots in the early 1970s to see what the cattle saw, and people thought she was crazy. She found what made them stop: a shadow, a hanging rope, a coat on the fence. Her curved chutes with solid sides now work on ranches and feedlots worldwide. At 79, she still teaches at Colorado State.