Video link. While I'm thinking about particle physics, here's something that might interest those of you who puzzle over why the dried fruit often ends up on the top of your cereal, or why cashews and Brazil nuts often end up pouring out on top in a can of mixed nuts. It's because of a phenomenon called granular convection, also known as the muesli effect or the Brazil nut effect. Shaking the contents of a container effectively liquidizes them, causing the bigger ones to float and cluster together. The phenomenon has been of interest to scientists since the 1930s.
As you may have noticed, a number of bird species have proven capable of mimicking snippets of sound they overhear, be it a melody, the wail of an ambulance or a dirty phrase taught to them by some drunk fella at a party. But here’s the thing: most mammals suck at it. Not so seals. […]
In the New York Times, Kenneth Chang reports that NASA’s Curiosity rover on Mars has detected high amounts of methane, a gas that is commonly a signature of life. From the NYT: “Given this surprising result, we’ve reorganized the weekend to run a follow-up experiment,” Ashwin R. Vasavada, the project scientist for the mission, wrote […]
As part of research on how to make better prosthetic legs, Vanderbilt University engineers put people on a treadmill and made them stumble. Over and over. By better understanding peoples’ stumble reflex, they hope to improve the computer-controlled stumble response in prosthetics. But to learn how people catch themselves, they had to trip them first. […]
When it comes to large computer systems, not one of them is fully secure. Even with constant updates to the platforms that keep vital networks humming, there’s always a back door. And companies are willing to pay handsomely to effective bouncers that can keep an eye on them. Call them ethical hackers or white hat […]
So you’ve visited the Kennedy Space Center every year. You’ve watched “The Right Stuff” for the 95th time. There must be something to do while you’re waiting to join Space Force for the next manned mission to Mars or the moon. Here’s a combo that should raise a salute from any fan of space or […]
Looking for a new tablet? If you haven’t upgraded in a while, it might be time to check out the latest iPad Pro for two very good reasons. First, the 2018 model is a real workhorse. The 12X Bionic chip processor means it can handle any task you set out for it, and still have […]