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.
Watch the skies! The peak of the Perseid meteor shower takes place overnight tonight! The bright quarter Moon will limit the number of shooting stars you'll see but you can still expect around 15-20 per hour depending on where you're at. The meteors are debris from Comet Swift-Tuttle burning up in Earth's atmosphere at speeds […]
"The U.S. has reached a landmark of sorts in its so far not very successful battle with the virus that causes Covid-19 — most Americans now know someone who has been infected," writes Justin Fox at Bloomberg, about coronavirus social data from Navigator Research, shown above.
Researchers successfully revived ancient microbes, some more than 100 million years old, that were buried in the seafloor. During an expedition to the South Pacific Gyre, the scientists from the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) and their colleagues drilled into the ocean sediment almost 6,000 meters below the surface. "Our main question […]
Batman never roars into the Gotham night without his utility belt. James Bond never embarks on a world-saving mission without stopping to see Q and picking up a few helpful gadgets. The world can be a challenging, even occasionally dangerous place — and that's never been more apparent than in the past few months. So […]
Vacuum cleaners have come a long way since those giant bulky bag behemoths that used to take up most of the hall closet. Machines that handle that kind of cleanup now have to be more than just carpet sweepers. They need to be small, powerful, convenient, and capable of handling a variety of big and […]
Everybody's got a story. Unfortunately, not everybody has the tools to tell that story the right way. That's especially true for someone looking to produce their first screenplay. Just as with any type of writing, penning a script for the screen has a set of rules all its own. Understanding that structure, as well as […]