The Happy Neuron
Stimulating articles to make your brain happy. http://thehappyneuron.com/
Why Is the Night Sky Dark? The Profound Solution to Olbers’ Paradox
Although it’s now attributed to Heinrich Wilhelm Olbers, a 19th century German astronomer and physician, this paradox has perplexed people for centuries. Numerous well-known people have tried to unravel it, including Kepler, Lord Kelvin, and even Edgar Allan Poe, but it wasn’t until the advent of modern cosmology that we figured it out.
Rocketing Towards the Dreaded Kessler Syndrome
On 15 October 2020, scientists watched in fear as a 16-foot long inoperative Russian navigation satellite and part of a 25-foot long Chinese rocket whizzed passed each other at 33,000 miles an hour, more than 600 miles above the southern Atlantic Ocean. Had they collided, the debris cloud would’ve been large enough to put every other spacecraft and satellite in low Earth orbit at risk.
Isaac Asimov Was Dead Right About Our Cult of Ignorance
Asimov said this in his rarely published 1980 Newsweek piece “The Cult of Ignorance.” Although it was a relatively short essay, it was meant as a warning against the dangers of a growing anti-intellectualism tide in the US, and in the post-Trump era, his words are more poignant today than when he wrote them.