Leonardo da Vinci was an Italian polymath. He was an expert mathematician, engineer, inventor, anatomist, painter, sculptor, architect, botanist, musician and writer
Galileo was an Italian physicist and astronomer. His achievements include improvements to the telescope and consequent astronomical observations, and support for Copernicanism.
Newton was an English physicist, mathematician, astronomer, natural philosopher, alchemist, theologian and one of the most influential men in human history.
Tesla was a Serbian engineer and inventor who is often described as the most important scientist and inventor of the modern age.
Einstein, a German physicist, is best known for his theory of relativity and specifically mass–energy equivalence, expressed by the equation E = mc2.