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 […]

Future Travel: The Growing Role of High-Speed Trains

Intercontinental air travel is projected to grow faster than the supply of pilots to fly planes. But the future of regional travel belongs not to the air but to high-speed trains. This has deep implications for economic growth. The four top economies are dealing with this differently. Fans of Murder on the Orient Express or The […]

One Hundred Years Old – A Bit Weird

It’s a season for something personal, another kind of time travel, a different kind of history. Here is a guest blog authored by my father, Don, a short sketch of his long life so far (he skips over his M.Sc. and careers in science and management). It is based on an article he published in […]