Einstein and Mileva married in January 1903 and the last letter references her second pregnancy, a son named Hans Albert. He also mentions that Leiserl had been ill with scarlet fever, which ...

To find some steadiness and organisation in chaotic life, humans usually find making lists of different things therapeutics, ...

Albert Einstein had described the special theory of relativity in 1905. The result of Einstein's thinking about light, this theory introduced brand-new ideas to science. It opened up an entire ...