Uncategorized
- Math
Scientists Say: Variable
A variable is something that can be changed — such as a value in math, or a factor in an experiment.
- Animals
Like bloodhounds, worms are sniffing out human cancers
Scents emitted by diseased cells may usher in a new era of safe, low-cost screening tests for cancer and other illnesses.
- Animals
Smartphones can now bring Ice Age animals back to ‘life’
Scientists bring Ice Age creatures to life with augmented reality. You can view these creatures in your own world on a smartphone.
- Psychology
Prevention programs can help reduce teen dating violence
Teen dating violence has many forms and affects an estimated one-third of teens. New studies explore what programs may help prevent this harm.
- Psychology
Five tips to consider when dating goes wrong
When dating is more hurtful than loving, it may be time to ask if there may be big trouble — and harm — ahead.
- Chemistry
Cellulose may keep ice cream from turning gritty in your freezer
Adding nanocrystals extracted from wood avoids the growth of ice crystals, keeping your treat smooth and creamy.
- Physics
Explainer: All about orbits
A handful of rules can describe the route some object repeatedly takes around another in space. Calculating that path, however, can be quite complex.
- Science & Society
This sun-powered system delivers energy as it pulls water from the air
The device not only produces electricity but also harvests water for drinking or crops. It could be especially useful in remote and dry parts of the world.
- Earth
Scientists Say: Atmosphere
An atmosphere is an envelope of gas around a planet, dwarf planet or moon.
- Materials Science
This new fabric can ‘hear’ sounds or broadcast them
With special fibers that convert tiny vibrations to voltages, a new fabric senses sound. Someday, such fabrics could monitor the body or aid hearing.
- Animals
Losing some genes may explain how vampire bats can live on blood
Loss of 13 genes active in other bats could support the vampires’ blood-eating strategies and adaptations.
- Environment
Night lights make even the seas bright
Light from coastal cities and offshore development may shine deep enough to disrupt tiny critters living dozens of meters (yards) below the surface.
