Dylan Thuras is a guest blogger on Boing Boing. Dylan is a travel blogger and the co-founder of the Atlas Obscura: A Compendium of the World's Wonders, Curiosities, and Esoterica, with Joshua Foer.
Recently the most perfect spheres in the world were created as an answer to the "kilogram problem." Made to replace a chunk of platinum and iridium that has defined how much a kilogram weighs for 120 years (the weight of the metal has been changing ever so slowly ) the spheres are about the size of a melon and almost perfectly round. They are likely the most perfectly spherical objects on the planet.
"If you were to blow up our spheres to the size of the Earth, you would see a small ripple in the smoothness of about 12 to 15 mm, and a variation of only 3 to 5 metres in the roundness"
With this in mind we present you a collection of a few of the more interesting spheres found around the world.
Sweden Solar System: The world's largest model of our planetary system centered around the largest spherical building in the world.
The Mapparium: An three story inside-out glass globe built in 1935.
The Sudbury Neutrino Observatory: A gigantic spherical neutrino detector built into the largest man made underground cavity in the world.
Costa Rican Stone Spheres: Mysterious spherical rock formations from an earlier era.
Paris Sewer Museum: Giant wooden balls helped keep the Parisian sewers clean.
The Republic of Kugelmugel: A spherical "micro-nation" in the heart of Vienna.
When Zoe Stavri woke up with a yeast infection, she had a strange and intriguing idea: what about adding some of her vaginal candida to sourdough starter?
Nick Sousanis, who delivered his doctoral dissertation in comic book form, has a new comic in the current Nature magazine, explaining the last 25 years’ worth of climate talks, as a primer in advance of the Paris climate talks next week.
Randall “XKCD” Munroe’s Thing Explainer: Complicated Stuff in Simple Words arrives in stores today: it combines technical diagrams and wordplay in pure display of everything that makes XKCD brilliant and wonderful in every way.
This minimalist multi-tool will see to it that instead of rocking a tool belt, you’ll carry just one. It’s shaped slightly like a key and weighs less than an ounce, so it plays nice with your keychain. The strong surgical-grade stainless steel blade will last, and is handy for everyday tasks like opening boxes and […]
The Code Black is our top-selling drone of all time—and for good reason. This powerful, palm-size drone is not only insanely fun to fly, but can capture some serious video footage from up above. With a flight time of about 10 minutes and an ultra-smooth ride, it’s a great introductory drone for anyone looking to […]
Don’t get handcuffed by Apple’s standard 3-foot Lightning cord (that you’ve most likely already lost), treat yourself to 10 feet of luxurious charging convenience. The Colossal is certified by Apple for its high-end quality, and designed to support full use of your phone while you power up. You can also get it in a 2-pack […]