If you’re building a PC or upgrading components, you might be agonizing over what size PSU to buy and whether there’s any such thing as too much PSU. PSUs Don’t Default to Maximum Output The rating for a given PSU is its maximum load rating, not its default load just plugged in and turned on. Your computer might feel like a space heater sometimes—and it certainly adds heat to your home —but it’s not quite like a space heater in the sense that a 500W space heater is either going full bore or it’s not on. Your PSU is like an engine that can be called upon to run harder if necessary but will idle when there is no demand. An 850W PSU doesn’t run at 850W every second it is on, it runs at exactly what the hardware demands. That demand varies between hardware configurations and even what you’re doing with a given hardware configuration. Your GPU, to highlight a particularly power-hungry component, might only draw 50W while you’re fiddling around with work documents (or … [Read more...] about Can You Buy Too Big of a PSU?
Ears too small for earbuds
Like many tech topics, styluses can be needlessly confusing. Here’s what you need to know about the different kinds of styluses used for tablets, touch-screen laptops, smartphones, and more. Not All Styluses Are Equal All it takes to be called a stylus, really, is to be a small pen-like stick held in the hand. The original styluses were ancient writing instruments that were just small pointy sticks used to scratch letters into wax tablets. Things have advanced a wee bit since then. While today you’ll still find styluses that are little more than sticks, there are also styluses with highly advanced and active connections to the devices you’re using them on—which certainly explains the price differences. Let’s take a look at the three broad categories of styluses, including the many kinds of active models on the market, so you can both better understand the technology and select the right one for your needs. Passive Styluses: Cheap and Easy It doesn’t get much simpler than … [Read more...] about Active vs. Passive Styluses: All the Standards Explained
One of the most common doomsday scenarios is an asteroid crashing into Earth. That’s what (probably) killed the dinosaurs, after all. We’re not in immediate danger of getting killed by an asteroid, but NASA still tried knocking out a random passing space rock — and it was successful in doing so. NASA’s Double Asteroid Redirection Test, or DART for short, reached its most exciting stage yesterday. The test had the aim of intercepting an asteroid called Dimorphos . The spacecraft launched by NASA was quickly zipping at 14,000 mph, until it finally struck, and redirected, the asteroid on September 26th at 7:14 PM ET. IMPACT SUCCESS! Watch from #DARTMIssion ’s DRACO Camera, as the vending machine-sized spacecraft successfully collides with asteroid Dimorphos, which is the size of a football stadium and poses no threat to Earth. pic.twitter.com/7bXipPkjWD — NASA (@NASA) September 26, 2022 The asteroid itself wasn’t threatening Earth at all. It was actually a small … [Read more...] about Here’s Why NASA Just Crashed a Spacecraft Into an Asteroid