Sage-Tips

Does infinite series converge? An infinite series of numbers is said to converge absolutely (or to be absolutely convergent) if the sum of the absolute value of the summand is finite. More precisely, a real or complex series ∑∞n=0an ∑ n = 0 ∞ a n is said to converge […]

What are some things that neuroscientists know but most people don t? Here are a few to give a flavor: Perceptual reality is entirely generated by our brain. We see the world in narrow disjoint fragments. Body image is dynamic and flexible. Our behavior is mostly automatic, even though we […]

How do I download a YouTube playlist? Download playlists and albums Anywhere you see a playlist or album within the YouTube Music app, tap Menu and select Download. You can also click the download arrow on the album or playlist details page. How do I extract audio from a YouTube […]

Where is UNIX still used? Proprietary Unix operating systems (and Unix-like variants) run on a wide variety of digital architectures, and are commonly used on web servers, mainframes, and supercomputers. In recent years, smartphones, tablets, and personal computers running versions or variants of Unix have become increasingly popular. What is […]

Is there a plastic that is biodegradable? Most biodegradable and compostable plastics are bioplastics, made from plants rather than fossil fuels and depending on the application you need them for, there are plenty to choose from. At the moment, PHAs make up around 5\% of biodegradable plastics worldwide. Around half […]

How much does a Humvee cost the military? Nowadays, the average cost of a fully-equipped military Humvee is over $220,000, which makes the one you’re about to drop a couple thousand on a real steal! Of course, modern military Humvees have a few more upgrades (and armor) than those available […]

What happened to HMS Glorious? Glorious was completed in late 1916 and spent the war patrolling the North Sea. While evacuating British aircraft from Norway in June, the ship was sunk by the German battleships Scharnhorst and Gneisenau in the North Sea with the loss of over 1,200 lives. Which […]

Do astronauts steer the rocket? Within the atmosphere, aerodynamic fins can help steer the rocket, like an airplane. Beyond the atmosphere, though, there’s nothing for those fins to push against in the vacuum of space. So rockets also use gimbaling engines—engines that can swing on robotic pivots—to steer. Sort of […]

Can I give my cat HGH? The process of injecting supplementary growth hormones into a cat is only conducted when absolutely necessary and is minimally invasive, meaning that there are few chances of complications arising. The only real worry that an owner may have is a fear of administering too […]

How many insurance companies are there in the US in 2020? 5,929 insurance companies In 2020 there were 5,929 insurance companies in the U.S. (including territories), according to the National Association of Insurance Commissioners. This number includes: P/C (2,476 companies), life/annuities (843), health (995), fraternal (81), title (62), risk retention […]

Is the fallen the strongest transformer? At the dawn of time, he was Megatronus, one of a brotherhood of vastly powerful beings dedicated to the well-being of their world. The Fallen is immensely powerful. He commands mystic, entropic arts, and when at full strength he can un-make creation at his […]