Grant Thompson, who is also known as The King of Random ,conducted an fascinating experiment during which he tried to add food color to liquid nitrogen. The results were mixed; while the nitrogen didn’t change color, the dye froze into neat little beads.
To find out how individuals measure big forces accurately, Veritasium host Derek Muller visited the National Institute of Standards and Technology (NIST) to learn more about their machine that does just that. It houses a stack of 20 masses, equaling 50,000 pounds, to “create a maximum force of 1,000,000 pounds of force.” So far, they believe that their machine holds the largest mass objects ever calibrated in the world.
Before visiting NIST in Washington DC I had no idea machines like this existed. Surely there’s an accurate way to measure forces without creating such a huge known force?! Nope. This appears to be the best way, with a stack of 20 x 50,000 lb masses creating a maximum force of 4.45 MN or 1,000,000 pounds of force. I also wouldn’t have thought about all the corrections that need applying – for example buoyancy subtracts about 125 pounds from the weight of the stack. Plus the local gravitational field strength must be taken into account. And, the gravitational field varies below grade. All of this must be taken into account in order to limit uncertainty to just five parts per million (.0005%)
Barbuzzo Gifts has created a set of 4 chemistry lab shot glasses, modeled after actual laboratory glassware, that feature 3 mini beakers and an Erlenmeyer flask to pour your beverage of choice into. Each shot glass has measurements printed on them to “help you better serve your special lab recipes.” They are available to purchase from Amazon.
Mixology 101 starts here! Unleash the need for the mad scientist within you to cater to your guests with the unique set of Lab Shots. The set includes a 3 Mini Beaker and an Erlenmeyer Flask which have measurements on them to “help” you better serve your “close friends” with a beverage of their liking.
images via Amazon
via Geeks Are Sexy
Warped Perception filmed an stunning see-through look at a full model rocket engine burning “in 4k slow motion and ultra slow motion so we can see exactly how the fuel burns and produces thrust inside the solid rocket booster.” Last month, they captured footage of half of a model rocket engine burning.
In a fascinating educational video by the Royal Institution, mathematician and host Rachel Dorris explained the disarming optical illusion created by a hollow mask to her two children, Eva and Daniel. Once they understood the concept behind the illusion, she then enlisted the kids to create a hollow mask of their own.
We make a lot of assumptions about the world around us, often based on experience. These assumptions help us make judgments and decisions quickly, but they’re not always correct. …This is the ‘hollow mask illusion’. Although the mask is actually concave, bending inwards, it sometime looks like it is sticking forwards out of the base. This is partly because we expect faces to be convex, curving out towards us, and make assumptions about what we’re seeing based on our past experience. You probably won’t have one of these at home,
On an energetic episode of the First We Feast series, Hot Ones, the entertaining astrophysicist Neil deGrasse Tyson answered questions about his new book “Astrophysics for People in a Hurry“, his eating habits, his opinion of specific selfies and other science-related questions while consuming progressively spicy wings.
Star Talk host, Hayden Planetarium director, and astrophysicist extraordinaire Neil deGrasse Tyson has a brilliant knack for breaking down big scientific ideas to the masses. But can he keep his facts straight while battling the heat of Zombie Apocalypse and Mad Dog 357? Find out as NDT takes on some hot questions and even hotter wings with Sean Evans, tackling everything from Obama selfies to Kanye West lyrics along the way.
Nanodots by Nanomagnetics are super strong tiny magnetic balls that can be used to build all sorts of complex creations. Sets of 216 Nanodots are available to purchase from the Laughing Squid store for $34.99 (12% off retail price) in original, gold, silver and black.
Nanodots are magnetic spheres precision-milled from sintered neodynium-iron-boron and designed to model atomic interactions at a human scale, giving your workspace an exciting scientific toy. Made out of the strongest permanent magnets known to man, Nanodots are able to lift 1,000 times their own weight and last over 20,000 years. Every time you pull these out, you’ll have a fascinating look into nature in your hands.