When cooking with metals, heat conductivity is the main draw. With copper, the cookware heats quickly and evenly and you avoid hotspots that generally cause food to stick. However, heat retention is the real issue. Copper loses heat just as quickly as it gains it, making it better suited to cooking more delicate proteins, as well as savory sauces. It is also perfect for melting chocolate and caramel. … [Read more...] about What is the difference between copper and stainless steel pans?
There hasn't been anything like this with cyber. It's been too secretive for anyone with a strategic bent to discuss. But now the NSA has merged with US Cyber Command, a combat command [that leads the military's hacking efforts]. It's not just a tool of espionage, but of war. … [Read more...] about Cyberwar, out of the shadows (Q&A)
What makes a bird, a bird?Modern birds have feathered tails and bodies, unfused shoulder bones, toothless beaks and forelimbs that are longer than their hind limbs. They also have a bony plate near their tails called a pygostyle. Other types of extinct theropods had one or more of these features, but only modern birds have all of them, according to Takuya Imai, an assistant professor with the Dinosaur Research Institute at Fukui Prefectural University in Fukui, Japan. … [Read more...] about Are Birds Dinosaurs?
Check out our guide to the best browsersFind out how to activate dark mode in ChromeThe best free password managerYou can see the changes now by downloading the latest version of Chrome Canary (a preview version of the browser intended for developers and anyone who wants to try new features first). … [Read more...] about Chrome is losing four handy tab options that Google says you’re not using
Grow up in an agricultural culture and you'll probably be thin and hard-muscled because of daily physical exertion. Live in a culture where rice is the major staple, and you'll probably be small because you never get enough to eat. Sit around working on a computer like everyone else in your culture and guess what, no matter how little you eat, the pudge factor kicks in. … [Read more...] about How Culture Makes Us Thin or Fat