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Years ago, a photo of one of Elon Musk's high school physics exercises went viral online. Many people commented, half-jokingly, that even the billionaire Elon Musk had to learn torque problems, so ...

Torque wrench: artist’s impression of the Casimir torque (purple streaks) acting on two solids (blue) against a background of quantum fluctuations (silver spikes). (Courtesy: Jeremy Munday) A very ...

Try this for kicks. The next time you’re surrounded by your gearhead buddies, ask them to explain the difference between horsepower and torque. The participants will immediately divide into “pro ...