Despite technological advances in fuel and engine efficiencies, vehicles remain high on the list of polluters. In the U.S alone, carbon emissions from gas-powered cars and other vehicles account for about 27% of our total greenhouse-gas output annually. The 'World Solar Challenge' hopes to change that some day with cars fueled by the biggest, cleanest, and cheapest, source of energy - The sun!
Kids News - Science Articles
Deserts are by definition barren areas of land with little precipitation. But few compare to Chile's Atacama Desert. Often called the world's driest non-polar desert, the 600-mile stretch of land gets an average of just 0.13 inches of rain annually, despite its location next to our planet's largest body of water, the Pacific Ocean.
Do you get impatient and lose your temper when you've gone without nourishment for a long time? Then you are suffering from 'hanger', a newly coined term that describes the inexplicable irritation some of us experience when our stomachs are growling. Turns out there is logical scientific explanation for this often uncontrollable reaction.
Though we always hear about how polluted our oceans, lakes and seas are, it is rare to witness the contamination without at least wading into the waters. However, such is not the case for the residents that live in the vicinity of Bangalore's largest body of water - Lake Bellandur. They get to both witness and experience the toxic effects of the pollution that spews out in the form of fluffy white foam, every single day of the year!
In early October, researchers from Utah's Brigham Young University revealed the discovery of a new species of a giant pterosaur. The massive reptile is believed to have inhabited Earth over two hundred million years ago during the Triassic Period when most of the continents were combined in the giant C-shaped supercontinent known as Pangaea.
The fact that the moon's gravitational pull affects ocean tides is well-known. However, what scientists did not know is that the Earth's gravity has a similar tug on the satellite. The only difference is that the effects are much worse since the pull results in exacerbating and changing the direction of the cracks on the lunar surface.
While for humans the expression "sleep with one eye open" is just a metaphor to keep alert, for some animals it is a way of life. Called unihemispheric sleep, it is the ability to snooze with one eye open and the corresponding half of the brain awake, while the other half rests.