Since 1893, all the units of measurement that we use in the United States — from miles to pounds — have been officially defined in terms of metric units. What is a mile? That's easy. It's 1.6 kilometers. I can only conclude that Americans either really like irony, or we really enjoy converting everything from one unit of measurement to another.
Technically, the US has been using the metric system since 1893
Study demonstrates that anti-radiation phone stickers do nothing
Can stickers—as in adhesive- or magnetic-backed paper—block phone radiation? Not these ones, says the University of Surrey in England. The stickers are sold by a U.K. company, Energydots, to exploit the country's pitch into 5G conspiracy theories and mystic paranoia. The stickers are about $35 each, shipped; Energydots has also falsely claimed to be in… READ THE REST
Floating a foil boat on heavier-than-air gas
Others have done this demo, but this is a great recent example in a large tank full of sulfur hexafluoride. Their demonstration of its voice-lowering properties was not as good as some, though. Image: YouTube / Da Vinci TV READ THE REST
Is the human gaze a physical force?
Is the human gaze a physical force? It sure feels like it sometimes. Princeton University researchers scanned subjects' brains to gain insight into why we subconsciously interpret "other people's visual attention as an invisible, force-carrying beam projecting from the eyes." This isn't about the paranormal investigations into whether you can "feel" when someone is staring… READ THE REST
Across 15 courses, this photography training will have you taking the best pictures of your life
"We are making photographs to understand what our lives mean to us." — Ralph Hattersley There's a reason why victims of fire or other natural disasters, or people who run from their homes with little but the clothes on their backs, always instinctively try to save one thing. Once family, pets, and anything living is… READ THE REST
Moto Buds are the perfect on-the-go earbuds for your busy day
Almost everything happens on the go these days. While some wireless headphones are for sinking into music and enveloping yourself in sound, others are built for service with versatility, durability, and engineered to field calls, listen to audio, and help you handle your business at a moment's notice from virtually anywhere. Thankfully, the Moto Buds… READ THE REST
Your air matters – the Atmotube can tell you instantly if it's healthy or not
Your lungs inhale and exhale about 20,000 times each day. Awake or sleeping, at home or out in the world, during intense workouts or just sitting on the couch, the air around you is cycling through your body every minute of every day. Especially considering our current health crisis, shouldn't you know about the quality… READ THE REST