Art Works

Art Works

French artist who makes wooden sculpture was probably one of the first Europeans to use Lac, a pigment derived from insects. Historians know that the dark red dye is extracted from the small insects machine (Kerria lacca) that are hidden in trees to protect themselves are works of popular art in the Renaissance to the 15th century. However, researchers at the Metropolitan Museum of Art Morgan Madonna, estimates three centuries earlier than that period. Morgan recognized the dye-coated glass samples covering 25 microns, or about half the thickness of human hair.

Holding Breath

Holding Breath

TIME breaks cockroaches and other bug periodically stop breathing. Scientists still can not understand this. A hypothesis says it is caused by the closure of a small valve on the breathing of their exoskeleton called the vent (spiracle). Recently, the researchers tested the truth of this theory through the placement of cockroaches in the room with different humidity levels for five weeks. After adjusting to the climate, fleas in the dry room to open their vents about 40 percent less than in the humid room. So the researchers report, The Journal of Experimental Biology edition of September 1.

Worm Glue

Worm Glue

Small marine worm has inspired chemists to create new adhesive that can help the surgeons to collect back the bones were destroyed. Sand worm (Phragmatopoma californica) took a grain of sand and broken sea shells and then paste them together into a vein in detail. Lem was able to glue two objects wet hit 30 seconds after the sea water. On August 17 last in the American Chemical Society meeting is held regularly twice a year, the researchers report a series of polymers pernyatuan chemical that mimics the worm proteins.

Phobos

Phobos

Phobos is the largest satellite and the nearest of the two natural satellites owned by Mars. Phobos orbit is about 9377 km from the center of Mars, closest to the mother than any other month of the satellite. Shimmer in the visible part of Phobos is located at a distance of about 21 km. The most striking characteristic appearance in this case is the crater Stickney in the lower right corner. Have the diameter of the crater along the 9 km seehingga make it the largest display in Phobos.

Candle Source Pollution in the House

Candle Source Pollution in the House

DINING night while accompanied by a burning candle is often seen as a romantic event for couples in love. However, the candle was also a source of air pollution in the room.
Researchers from the University of South Carolina, United States, comparing the petroleum-based candles and vegetables to determine emissions. They burned many candles for 6 hours in a small box. The air inside the box are analyzed.
The result, based candle wax is most commonly found in the market was issued a hazardous fumes containing toluene and benzene. The researchers concluded lit candles once in a while will not hurt. However, frequently lit candles in the room that has bad ventilation can cause health problems such as allergies and throat, causing inflammation.