Physicist extends Einstein, Galileo's work to quantum states
Sixteenth-century Italian scientist Galileo Galilei threw 2 different mass from the Leaning Tower of Pisa to establish a scientific principle. The principle, later described by Albert Einstein, states all bodies fall in the same way when subject to gravity. Australia-based scientist Magdalena Zych tested the equivalence principle for quantum states, which when superimposed acted in a similar way.