| Jul 31, 2014
| 8:00 AM
Have you ever wanted to stick a thermocouple in a carrot and chart the rate at which it heats in a steamer, in a pot of boiling water and in a hot oven? Does the phrase “latent heat of condensation” fill your heart with joy?
Boy, are you...
| Jul 24, 2014
| 11:03 AM
A new study suggests that scientists must reexamine records that show increases in Antarctic sea ice since 1979. Researchers found that something changed in the way satellite data get converted into ice cover, but they can’t yet identify the exact...
| Jul 10, 2014
| 2:37 PM
Nineteen years ago this month, Chicago experienced one of the worst heat waves in its history. Nearly 500 people, mostly poor and elderly residents of the city’s dense urban core, perished in sweltering temperatures and oppressive humidity.
| Jul 16, 2014
| 6:17 PM
The lava that spews from the fiery rims of volcanoes originates deep in Earth’s crust, often more than 50 miles below our feet. Although scientists have a general idea where this magma comes from, it’s nearly impossible to see exactly what&...
| Jun 16, 2014
| 7:06 PM
Feeling achy? Got creaky knees? Joint pain from osteoarthritis? They’ve got a new drug for that that and it’s completely free: walking.
Scientists say taking as few as 6,000 steps per day may help older adults remain active in their golden...
| Jul 5, 2014
| 8:51 PM
A U.S. Fish and Wildlife Service official has ordered federal biologists to withdraw their conclusion that the last 300 wolverines in the continental United States deserve threatened species status.
The biologists had recommended the protection on...
| Jun 14, 2014
| 5:36 PM
All through high school, Ani Schug was told to steer clear of Wikipedia. Her teachers talked about the popular online encyclopedia "as if it wasn't serious or trustworthy" and suggested it only be used as a tip sheet.
Imagine her surprise this spring...
| Jun 11, 2014
| 12:22 PM
Diamonds may be a girl’s best friend, but they’re also prized by oil drillers, road crews and experimental physicists for their unparalleled ability to bore, grind and cut. Now scientists have synthesized microscopic diamonds that are harder,...
| Jun 30, 2014
| 10:57 AM
Halfway to space in the skies above Hawaii, NASA successfully tested its Low-Density Supersonic Decelerator, a vehicle equipped with new technology for ferrying heavy payloads to Mars. A massive balloon lifted the saucer-shaped vehicle from a naval base...
| Jun 30, 2014
| 9:26 PM
Frustrated beachgoers this summer will finally have a remedy against anyone who blocks public access to California's shoreline.
Under a new law that takes effect Tuesday, the California Coastal Commission will for the first time have the authority to...
| Jul 15, 2014
| 2:31 PM
What if the best way to change minds isn’t to tell people why they’re wrong, but to tell them why they’re right? Scientists tried this recently and discovered that agreeing with people can be a surprisingly powerful way to shake up...