Uncategorized
- Chemistry
Olympic ski racers use chemistry to enhance their performance
The chemistry of ski wax plays an important role in whether a skier wins or loses. They need a wax that helps them slip speedily downhill yet grip well uphill.
- Chemistry
Chemists look to mine silver from laundry wastewater
Recovering silver from wastewater could prevent the metal from ending up in lakes, rivers and the ocean, where it could poison wildlife.
- Computing
Scientists Say: Ampere
An ampere is a unit of electric current. It’s a base unit, meaning it’s one on which all electrical calculations are based.
- Climate
Climate change threatens future Winter Olympics
Higher temperatures, less snow mean many former Winter Olympics sites soon will no longer qualify to host future games, concludes a new analysis.
- Physics
This hydropower harnesses energy one water drop at a time
A single drop of water sliding across a surface can light up 15 LEDs. This charging by friction is due to what’s known as the triboelectric effect.
- Animals
Blooms on ‘chocolate’ tree are crazy-hard to pollinate
The cacao trees must be pollinated or those seeds that give us chocolate will never form. The rub: The trees’ flowers challenge all but some of the tiniest pollen-moving insects.
- Chemistry
Increasingly, chocolate-makers turn to science
Chocolate is delicious and may even have health benefits. To make sure there’s enough to go around, scientists are growing heartier cacao trees.
- Agriculture
How to grow a cacao tree in a hurry
Chocolate is made from the pods of the cacao tree. To reproduce this plant quickly for research, scientists use clones.
- Chemistry
Janet’s chocolate mousse pie
The top two ingredients — dark chocolate and tofu — both have a reputation for being healthy. The good news for those who don’t like tofu: You can’t taste it in this pie. It just tastes like a very rich, thick chocolate mousse.
- Animals
Blowflies keep their cool with drool
Personal air conditioning the blowfly way: Dangle a droplet of saliva and then swallow it.
- Health & Medicine
Scientists probe new ways to control malaria
In the quest to stop malaria, one researcher studies the disease in birds, bats and other animals. Another focuses on climate change and human sprawl.
- Health & Medicine
Don’t blame the rats for spreading the Black Death
Popular history says millions of people died of the Black Death in the Middle Ages after being bit by fleas living on rats. But human fleas may be the real culprits, a new study finds.
