名人教英文：albert einstein &theory of relativity 爱因斯坦与相对论
with the help of his friend, marcel grossman, albert einstein got a job in bern, switzerland, at the patent (专利权) office as a third class examiner. his job was to be part of a technical team looking at new inventions and deciding if they deserved a patent. a patent is a document certifying that the invention worked and was original. einstein loved to work with new inventions. his skill and enthusiasm soon got him promoted to second class technical expert.
mileva maric was a physicist like einstein. she too had big dreams for her profession. she enjoyed discussing scientific theories with einstein. she was intelligent enough to understand him. four years older than einstein, she was bright, energetic, and quick. they were married in january 1903. the young couple rented an apartment with a view of the alps (阿尔卑斯山). einstein was pondering the nature of light, concluding that it was made up of individual particles of energy, which he called photons (光子). the scientific world at the time thought light was transmitted in waves.
the einstein's first son, hans albert, was born on 14 may 1904. einstein was very happy as a father. he often wheeled his infant son down the street in a baby carriage.mileva einstein was a perfectionist (完美主义者). soon, she was taking care of the baby and the house while einstein was writing scientific articles and thinking about atoms (原子) and molecules (分子). at the time, no one knew for sure if atoms and molecules even existed.