Available as a 3D printable file from JBV Creative, this sine wave machine features marbles that roll in a sine wave as the machine is cranked. Hate cranking? Get creative and add a motor. Or a car engine! JBV also sells the file for a wave machine that’s only 8
This is a video from Insider (previously) of marine biologist and shark scientist Amani Webber-Schultz rating ten different shark attacks (and shark scenes in general) from movies and TV shows based on their realism, dropping tons of shark knowledge in the water along the way like chum. Contestants include Jaws,
This is a timelapse video of a skinned watermelon speeding from beautiful Picnictown to Puke City, USA over the course of two minutes. In real-time Youtuber Photo Owl Time Lapse let nature take its course over 33 days, with most of the decomposition happening by day six, and the melon
This is a video from a water park with what appear to be very lax safety standards featuring two dudes going down a slide at once, and the guy in the rear activating the other’s butt thrusters with a solid kick towards the end of the slide. Honestly, I’m surprised
This is a video of Youtuber NileRed producing Thioacetone, what’s considered the stinkiest chemical known to man, allegedly capable of making people puke and pass out. He produces the chemical on an island he rented to be far away from humanity, and, while he isn’t ultra-impressed with the smell (full
This is a flame rainbow, the ROYGBIV of fire created by adding methanol to different ionic salts (listed in the screenshot above in their respective tint), which result in the various flame colors. That’s cool. I was sort of hoping for one flame with all the different colors layered like
Ever wonder what it looked like inside a spinning CT scanner? Well wonder no more my curious friend (are you a cat?), because this is a video of exactly that. I always assumed it was just two wizards making a donut shape and pointing their wands at the patient, but
Both the top and bottom half of the image have the same number of dots, but the ones on top appear to disappear unless you’re looking at them. This is an example of a Hermann grid illusion, an optical illusion first documented by Ludimar Hermann in 1870. According to SharpBrains,