Orbital

Orbital

In the cosmic calendar of the universe and life, with the Big Bang happening on January 1st, almost fourteen billion years ago, when a supercharged universe-dense speck of energy blew open at the speed of faster-than-light and a thousand trillion degrees Celsius, an...
Quantum weirdness isn’t weird

Quantum weirdness isn’t weird

If we accept objects don’t exist… There is a chair in front of me. A nice red wooden chair with four legs, a seat to sit on, a rest to support the sitter’s back. Does this chair exist by itself? Of course it does: it exists regardless of me. But wait: we...
Seven Brief Lessons on Physics

Seven Brief Lessons on Physics

The Most Beautiful of Theories In his youth Albert Einstein spent a year loafing aimlessly. You don’t get anywhere by not “wasting” time—something, unfortunately, that the parents of teenagers tend frequently to forget. He was in Pavia. He had joined his family,...