A "cat state" is a curiosity of the quantum world, where particles can exist in "superpositions" of two opposite properties simultaneously. Cat state is a reference to German physicist Erwin Schrödinger's famed 1935 theoretical notion of a cat that is both alive and dead simultaneously.

Researchers at the National Institute of Standards and Technology (NIST) have created "quantum cats" made of photons, particles of light, boosting prospects for manipulating light in new ways to enhance precision measurements as well as computing and communications based on quantum physics.
Want to make people healthier?  Put more goof stuff in beer.  And don't count out the smarts of ancient people in fun ways to stay healthy.

While antibiotics officially date to the discovery of penicillin in 1928, a chemical analysis of the bones of ancient Nubians (today's Sudan) shows that they were regularly consuming tetracycline, most likely in their beer, 1,700 years ago.