The Gear That Could Solve the Next Big Wildfire Whodunit
To date, California's Ranch fire—the (much) larger of the two wildfires that make up the Mendocino Complex fire—has consumed more than 360,000 acres of Northern California, making it the largest conflagration in state history. It was probably wind that taught the nascent Ranch fire to walk and search for food, to glut itself on timber…
Before Using Birth Control Apps, Consider Your Privacy
Score one for the quantified self-surveillance movement. Last week, the US Food and Drug Agency approved the first-ever, over-the-counter digital contraceptive—a polished and almost preternaturally upbeat mobile app called Natural Cycles. Basal body temperature readings and monthly menstruation data feed into an algorithm that tells users whether or not they should be having unprotected sex.…
Apple’s Newest Watch Features Will Transform Heart Health
Today, with a software update, Apple switched on two highly anticipated features of its popular wearable: The first uses optical sensors to detect irregular heart rhythms on Apple Watch Series 1 and later iterations. The second enables wearers of Apple Watch Series 4 to record an electrocardiogram, or ECG, directly from their wrist. The features…
The Water in Your Toilet Could Fight Climate Change One Day
Day after day, you pump carbon dioxide into the atmosphere, whether you’re driving or turning on lights or eating meat. You can’t help it, because, really, no human can. But I bet you haven’t stopped to think about how the simple act of pooping is also part of the problem: Worldwide, wastewater treatment facilities account…
Meet The Four-Dimensional Numbers That Led to Modern Algebra
Imagine winding the hour hand of a clock back from 3 o’clock to noon. Mathematicians have long known how to describe this rotation as a simple multiplication: A number representing the initial position of the hour hand on the plane is multiplied by another constant number. But is a similar trick possible for describing rotations…
A Faulty Booster Might Have Sabotaged a Soyuz Rocket Launch
A NASA astronaut and a Russian cosmonaut were forced to make a dramatic landing after their ride to space, a Russian Soyuz rocket, failed minutes after takeoff. The incident caused the crew to initiate emergency abort procedures, landing a few hundred miles away from the launch site. Both Nick Hague and Alexey Ovchinin are safe.…
What Termites Teach Us About Robot Cooperation
At a glance, a single worker of the genus Macrotermes is not a very complex creature—less than half an inch long, eyeless, wingless, with an abdomen so transparent you can spot the dead grass it ate for lunch. Put it in a group, though, and it may pile up pinhead-sized balls of mud, one after…
As Snow Disappears, the Sierras and Rockies Are Shrinking
The mountains of the High Sierra and the Rockies are, in effect, shrinking, according to a new analysis of the nation’s snowpack over the past 36 years. These places are experiencing a shorter winter with less snow, just like regions closer to sea level. That’s not good news for ski resorts and snowmobilers, as well…
How a Team of Experts Quelled Colorado's Enormous Spring Fire
I first heard about Colorado’s Spring Fire on July 1, when I was driving back from a camping trip. My mom texted me from her home in Florida: “How close are these fires?” I pulled over to a rest stop, called up the federal disaster website Inciweb, and sent her back a screenshot of the…
Watch Blue Origin Launch a Rocket Stuffed With NASA Gear
Update: This launch, which took place on January 23, 2019, was successful, with the company landing both the rocket's booster and its crew capsule. Blue Origin is planning to soon launch its New Shepard rocket on its tenth mission from the company's Corn Ranch landing pad in West Texas. The vehicle will carry a bevy…