Science News Archive - April 24, 2009
According to scientists, Greenlandâ€™s icesheet has revealed a store of methane that appears to be more stable that previously thought, easing tensions over a rapid rise in global temperatures.
Botanists discovered a pink-flowered tree in Ethiopia that has been overlooked by generations of researchers.
Scientists have strengthened spider silk three times more than its natural durability - which is already tougher and lighter than steel - by infusing the silk with small bits of metal.
A concrete material developed at the University of Michigan can heal itself when it cracks. No human intervention is necessaryâ€”just water and carbon dioxide.
Climate experts now believe that they have pinpointed yet another human-related cause of global warming: fires.
The most powerful earthquakes happen at the junction of two converging tectonic plates, where one plate is sliding (or subducting) beneath the other.
The Rosetta Stone allowed 19th century scholars to translate symbols left by an ancient civilization and thus decipher the meaning of Egyptian hieroglyphics.
These days, chemical analysts are expected to track down even single molecules. To do this highly sensitive detective work, nano researchers have developed minute strings that resonate in characteristic fashion.
Gas power plants could be cheaply retrofitted to generate hydrogen as well as power, chemists say in a Royal Society of Chemistry journal.
Living in another country can be a cherished experience, but new research suggests it might also help expand minds. This research, published by the American Psychological Association, is the first of its kind to look at the link between living abroad and creativity.
- A handkerchief.
- Specifically— The legendary sweat-cloth; the handkerchief of St. Veronica, according to tradition miraculously impressed with the mask of Christ; also, the napkin about Christ's head (Johu xx. 7).
- In general, any miraculous portrait of Christ.