160 years ago, on 16 October 1855, 68 students embarked on their degrees at the newly found Federal Polytechnical School (now ETH Zurich). Naturally, the Swiss School Board decided to announce this in the newspapers all over Switzerland and even as far as Augsburg:
Sunspots are patches on the sun’s surface which, at around 4,000°C, are considerably colder than their surroundings. They are formed by disturbances in the sun’s magnetic field.
Undoubtedly, the exclamation was an expression of Albert Einstein’s joy regarding his return to his alma mater. He had studied mathematics and physics at the Federal Polytechnic School (now ETH Zurich) from 1896 to 1900, where he obtained a teaching diploma. However, it is fair to speculate that his appointment as a full professor of theoretical physics also triggered a sense of