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.
Dip your dollar into liquid anhydrous ammonia, dry it, and repeat. The surface tension of the boiling and evaporating ammonia shrinks the bill. Caveat: It could prove difficult to use a mini-dollar and mutilating a bill may even be illegal. (Applied Science via Weird Universe)
In many states in America, legislatures have erected punitive, vindictive barriers for women seeking contraception, requiring them to get prescriptions for safe, widely taken medications.
Designer Art Donovan writes, “I’m always looking for new and unique inspiration for my lighting commissions and the latest, cutting edge scientific devices offer a boatload of great design inspiration. From the cool, new ‘James Webb Space Telescope’ to the myriad of complex details in the L.H.P.C. at Cern- it’s a cornucopia of rich imagery.”
Folks used to rely on alarms to protect their home – and before that, the family dog. Now, anyone looking to guard their homes can choose from some high-tech options, including the Amaryllo iCamPRO FHD Home Security Camera (now just $219 in the Boing Boing Store).In fact, this 2015 CES “Best of Innovation” award-winner boasts so many features, it’s […]
If you want a quality vaping experience, it’s usually going to cost you. Vaporizers that deliver a fast, controlled burn will set you back up to $300, which is why the FEZ Vaporizer (now just $99) is an absolute steal.The FEZ dry herb pen does everything that more expensive models handle at a reduced price. It heats up […]
Taking pictures can be challenging. There are a million factors that can influence each shot you take – and unless you’re a trained photographer, you often just focus, click…and cross your fingers.Of course, you can take some of the ambiguity out of your picture-taking with this Hollywood Art Institute Photography Course & Certification package, now […]