21Judit Polgar

Judit Polgar is a female chess player who defeated Kasparov, Karpov, and Spassky. She was part of an experiment by her father to prove (chess) genius is made, not born.
22Starvation experiment

In World War 2 conscientious objectors took part in an experiment in which they were starved for 6 months to decide how to treat victims of mass starvation in Europe.
23Antoine Lavoisier

18th-century French chemist Antoine Lavoisier, as a final experiment told his colleagues that he would try to blink as long as possible after being beheaded. Some sources say he continued to blink for 30 seconds.
24Fernald School

Quaker Oates and MIT conducted an experiment in Fernald School on unsuspecting, mentally retarded children. They tricked them into eating radioactive cereal by telling them they were in a "science club."
25Hand washing

An experiment was conducted in a hospital where the sign at a hand-washing station was changed from “Hand hygiene prevents you from catching diseases” to “Hand hygiene prevents patients from catching diseases” resulting in a 45% increase in the use of soap or hand sanitizer.
