skin cancer classifier ruler image shortcut

An AI learned to treat rulers in photos as a sign of cancer

A system trained to recognize skin cancer noticed that dangerous-looking spots were often photographed next to rulers for scale. Instead of relying only on the skin itself, it learned that seeing a ruler was a clue that cancer might be present.

An extra copy of a gene can evolve a new job

Sometimes DNA copying creates a second copy of a gene. One copy can keep doing the old job while the other is free to change. Over time, the spare copy may develop a new function without destroying the original one.

Naples was free before Allied troops arrived

During the 1943 Four Days of Naples uprising, German occupation forces negotiated surrender in the face of insurgents. Naples was fully liberated before British and American forces entered on October 1.

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skin cancer classifier ruler image shortcut

An AI learned to treat rulers in photos as a sign of cancer

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