Tag Archives: travel

An amazing birthday present: a universe that allows time travel and helps us understand our existence

In 1949 Austrian-American logician Kurt Gödel gave a friend a strange birthday present: a rotating universe. Gödel is widely regarded as the world’s greatest logician. Albert Einstein, the greatest physicist, was his best friend. For years they walked home from the Princeton Institute for Advanced Study almost every day. The present—for Einstein’s 70th birthday—dealt with […]

Understanding time travel . . . and travel time

Albert Einstein predicted time travel in 1905. It was demonstrated in 1971 and many times since. The twin paradox provides a dramatic illustration of time travel: You travel to a distant star and return to find you are far into your twin’s future. No-one has done this; but it is a real effect. It has […]

Our Greek Tragedy

No doubt political science is political. Recent travel through the Balkans renewed questions about: Is it science? Greece is out of the news except when refugees grab headlines. In Thessaloniki one could sense a certain un-Greek gloom. Not surprising. Most Greeks want to be in the EU. The EU keeps on treating them as almost […]