Chinese scientists have invented a copy into the new building cementitious material --&ldquo rock; concrete ”. This will be the metallurgical slag, fly ash, coal gangue and other various industrial waste ground after &ldquo ” coagulation; a stone “ ”, compared with ordinary cement, the strength, density, corrosion resistance, and the production cost and clean production and...
After 6.1 days of China will restrict the use of plastic bags, in the use of plastic bags preference is very strong today, there is no suitable alternatives to the use of plastic bags to change people directly habit is hard to imagine. Then we use what to replace plastic bags? let us look at abroad have what whim!  ...
Since the first space junk has more than 50 years, space junk, grow with each passing day. To this end, researchers have proposed some methods of creative, to clean up the space junk. March 25th hearing, according to Science Daily website reported, since 1957, before 4 October, the Soviet Union launched the first artificial earth satellit...
I saw the researchers will be white plastic on the general water, ten seconds later, the plastic is melted in water. Then, put a plastic is placed in a cup of hot water, only a few seconds, plastic completely melted … … this is the morning of June 20th, a mysterious case reporter witnessed in a high-tech enterprises in Lanzhou high tech zone. This is called “ biodegradable ...