Scientists Have Twisted Molecules Into The Tightest Knot Ever
This new knot has eight crossings, far more than previous molecular knots. The "rope" is very short — just 192 atoms long, or 500 times smaller than a red blood cell.
Science
Flipping A Switch In The Brain Turns Lab Rodents Into Killer Mice
When scientists activate hunting circuits in the brains of genetically modified mice, the animals attack insects and even bottle caps as prey. It gives clues to the evolution of hunting in humans.
Obesity-Linked Diagnoses On The Rise Among Kids And Teens
A new analysis of U.S. health insurance claims is worrisome, pediatricians say: More and more young people are being diagnosed with Type 2 diabetes, high blood pressure and sleep apnea.
New Gene-Editing Techniques Hold the Promise Of Altering The Fundamentals Of Life
New Yorker writer Michael Specter discusses emerging biotechnologies that will make it possible to remove disease and change the characteristics of life by rewriting the genetic code in cells.
We Asked People What They Know About Obamacare. See If You Know The Answers
A new NPR/Ipsos poll shows many Americans don't know details about the Affordable Care Act. And only 1 in 7 favors repealing the law altogether without a replacement.
California Nail Salons Start To Invest In Worker Safety
A statewide collaborative of nail salons now has 120 members; all have made ventilation upgrades and switched from toxic products to safer ones. Will clients be willing to pay extra to help workers?
The Curious Case Of The Hyolith, An Ancient 'Ice Cream Cone' That's Found A Home
The creature, which roamed ocean floors over 500 million years ago, went years without a definitive scientific classification. Now, researchers think the oddball finally has a group to call its own.
Gas Taxes May Go Up Around The Country As States Seek To Plug Budget Holes
This year could see a wave of state tax hikes on gasoline and diesel. Oklahoma is one of about a dozen states seriously considering increases.
New 'Skywalker' Ape Species Will Need Jedi Powers To Survive
Scientists named a new species of gibbon ape after Star Wars rebel character Luke Skywalker. Like similar species that live in China and Myanmar, the so-called skywalker hoolock gibbon is endangered.
Powerful Storms Make Dent In California's Historic Drought
A week of powerful storms on the West Coast is helping to put a dent in California's historic drought, yet state officials are warning they are by no means a drought buster.