If you’ve ever used a computer, you’ve probably seen it: A grid of numbers and mathematical operators on the far-right side of a keyboard. It’s a numeric keypad—but how did it get there, and why is it laid out the way it is? Let’s explore its origins. It’s All About the Math Computers have numeric keypads because they make repetitive data entry easier. They allow you to type numbers and perform mathematical operations rapidly, with only one hand. The modern design of numeric keypads may seem obvious today, but it is the product of decades of refinement in adding machine technology, most of which took place over 100 years ago. The modern numeric keypad layout—sometimes called a “tenkey” layout—can trace its roots back to David Sundstrand, whose company released the first commercial tenkey mechanical adding machine in 1914. In Sundstrand’s adding machine key layout, you can see the rudiments of now-standard setup: ten numeral keys, arranged in three rows of three with the … [Read more...] about Where Did the Numeric Keypads on PC Keyboards Come From?
" " The New England Compounding Center is shown here on Oct. 5, 2012. Until the Framingham, Mass., pharmacy landed in the news for the 2012 fungal meningitis outbreak, a lot of folks hadn't heard of these specialized pharmacies. Jared Wickerham/ Getty Images Compounding pharmacies don't usually get a lot of media coverage for good news. It's the mistakes -- the deadly outbreaks of meningitis from contaminated vials or the eye infections caused by unsterile medications -- that tend to make the evening news. Turns out, though, that regulatory practices for compounding pharmacies, at least in the United States, tend to follow the same pattern. Until something goes wrong, safeguards aren't generally in place. First off, let's briefly outline what one of these places is. In the U.S., most drugs and medications are manufactured by large pharmaceutical companies. That means most prescriptions come in bulk: only certain potencies, forms or methods. A compounding pharmacy … [Read more...] about Are compounding pharmacies regulated?
HBO Max might not be the oldest streaming platform on the block, but that doesn’t mean it’s lacking. Some of the most famous horror movies of all time can be streamed alongside recent fright-filled hits. Here are 10 of the best horror movies streaming on HBO Max . Table of Contents Day of the Dead The Exorcist Gremlins The Invisible Man It Jaws A Nightmare on Elm Street Poltergeist Scanners Us Day of the Dead The third movie in George A. Romero’s long-running zombie series, Day of the Dead , may not be as influential as Night of the Living Dead or as acclaimed as Dawn of the Dead , but it’s still an ambitious and unsettling horror movie. Romero further explores the idea of zombies gaining self-awareness, while also demonstrating that the greatest threat in any post-apocalyptic scenario is, of course, humanity itself. The Exorcist The kind of classic that is … [Read more...] about The 10 Best Horror Movies on HBO Max