| | > > Did You Know? Main About Caltech News & Events Research & Education Join Us Fun Facts The Caltech mascot is the beaver—an homage to nature's engineer. Caltech's founding fathers—astronomer George Ellery Hale, physicist Robert Andrews Millikan, and chemist Arthur Amos Noyes—were nicknamed "Tinker, Thinker, and Stinker." Caltech is a certified olive-oil distributor. Since 2007, the campus has hosted fall olive harvest festivals to collect as much as 2,600 pounds of olives from the trees along the famed Olive Walk. The olives yield anywhere from 50 to 150 gallons of oil depending on the year. The annual Pumpkin Drop takes place at midnight on Halloween, when students drop pumpkins frozen in liquid nitrogen from the top of Millikan Library to see if they'll give off a brief glow as the
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