SCIENCE VIEWS: NASA - Chandra Xray Images

FISH ROBOTS TO DETECT WATER POLLUTION

British scientists are slated to release into Spanish seas five carp-shaped fish robots which are capable of detecting water pollution.

Built by Essex University researchers, the 1.5-meter-long robots have an eight-hour battery and move like real fish.

They are equipped with chemical sensors which enable them to detect harmful contaminants such as leaks from vessels or underwater pipelines.

Costing $29,000 each, the robots swim at a maximum speed of about one meter per second, do not need remote controlling and transmit information using Wi-Fi technology.

The fish robots will navigate the Bay of Biscay at Gijon in northern Spain as part of a three-year joint project between the engineering consultancy BMT Group and Essex University.

"The hope is that this will prevent potentially hazardous discharges at sea as the leak would undoubtedly get worse over time if not located," AFP quoted Professor Huosheng Hu of Essex University as saying.

If the project is successful, the fish could also be used in rivers, lakes and seas across the world to prevent the spread of pollution.

Sunday, March 22, 2009

NASA - Chandra Xray Images

Chandra Images by Category

Black Holes

-Stellar black holes, mid-mass black holes, and supermassive black holes.

	GOODS Chandra Deep Field South (June 01, 2004)
	MGG 11 (April 10, 2004)
	RX J1242-11 (February 18, 2004)
	SS 433 (January 5, 2004)
	Cygnus X-1, XTE J1650-500 & GX 339-4 (September 17, 2003)
	Chandra Deep Fields (June 19, 2003)
	Sagittarius A* (January 6, 2003)
	SS 433 (December 11, 2002)
	NGC 6240 (November 19, 2002)
	XTE J1550-564 (October 3, 2002)
	Sagittarius A* (September 5, 2001)
	XTE J1118+480 (May 07, 2001)
	Black Hole Event Horizon (Illustration) (January 11, 2001)
	M82 Black Hole (September 12, 2000)
	Pictor A (June 6, 2000)
	NGC 4151 (June 5, 2000)
	NGC 3783 (May 25, 2000)
	CXO 0312 Fiore P3 (March 20, 2000)
	Type 2 Quasar (March 20, 2000)
	NGC 5548 (February 17, 2000)
	Galactic Center (January 14, 2000)