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Complex fluid dynamics may explain hydroplaning

When a vehicle travels over a wet or flooded road, water builds up in front of the tire and generates a lift force. In a phenomenon known as hydroplaning, this force can become large enough to lift the vehicle off the ground.

Why food sticks to nonstick frying pans

Despite the use of nonstick frying pans, foods will sometimes get stuck to a heated surface, even if oil is used. The results can be very messy and unappetizing.

Appearance, social norms keep students off Zoom cameras

When the semester shifted online amid the COVID-19 pandemic last spring, Cornell University instructor Mark Sarvary, and his teaching staff decided to encourage—but not require—students to switch on their cameras.

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