The Action Lab took a maglev gyroscope and placed it inside a sealed chamber to see what happens to a levitating gyroscope in a vacuum.
A lot of people took issue with the experiment's setup and explanation, but it's interesting nonetheless. He responded to those concerns:
Hi everyone! I see a lot of comments that mention it will stop because of gravity. A lot of people said that in my pendulum video also. But remember that gravity doesn't "slow things down." The only reason we associate gravity with slowing things down is because it pulls things toward the earth and they hit the earth and the friction causes it to stop. So friction is the stopping force, not gravity. But you are right, gravity does play a role here that I didn't mention in the video. That is that it causes precession in the gyroscope. Since it never started out initially straight up, gravity does make the gyroscope tip over eventually. This may be even a larger factor than the magnet friction I talked about.
• Will a Levitating Gyroscope Spin Forever in a Vacuum Chamber? (YouTube / The Action Lab)
How did Twitter addict Jesse Singal become the anti-transgender spokesgoblin of his generation? When a Child Says She’s Trans continues his creepy fixation on gender-nonconforming minors. The “ex-trans” movement, similar to the discredited “ex-gay” movement, can always count on axe-grinding coverage that vastly over-represents their numbers and POV.
BeauHD, a Slashdot moderator, has Crohn's Disease, and he lives in an age of modern miracles, which means that he can have his small intestine surveyed by swallowing a tiny pill-sized camera, rather than having a scope threaded up his rectum or down his throat, or having his gut sliced open.
The National Institutes of Health maintain a 3D Print Exchange, a kind of miniature Thingiverse for open-licensed, 3D printable objects for teaching and practicing public health.
Your pet might be photogenic, but getting them to stare long enough at your camera to snap that Instagram-worthy photo isn’t as simple as telling them to sit. Bribing your pets with their favorite treat, however, might just do the trick, and with the Adjustable Pet Selfie Smartphone Attachment, you can do just that while getting […]
The cybersecurity landscape is changing, and now one of the most effective ways to counter hacking threats is to employ another hacker against them. Commonly referred to as ethical hackers, these professionals use a cybercriminal’s tools against them, checking networks for vulnerabilities and patching them up before they can be exploited. The Certified Ethical Hacker Bootcamp […]
The human eye is a powerful thing, but it’s not so great at seeing in the dark or around tight spaces, which is partially why most of us struggle with unplugging drains, cleaning under the fridge, and other hard-to-reach jobs. This 1080p HD Waterproof WiFi Wireless Endoscopic Camera, however, gives you the flexibility necessary to get […]