Washington  - One of the advantages of LCDs over cathode ray tube (CRT) monitors is lack of flicker. CRTs produced eye-fatiguing flicker if the refresh rate was set below 70 hertz (Hz).

Boston- Germany's top diplomat Saturday defied warnings from his counterpart Condoleezza Rice,

Washington- Surging food prices could prompt greater global conflict and lead to the star

Washington, April 12 : Scientists have made a bicycle with an sensor-based pedal crank that keeps informing the biker how he should direct his strength into the pedals to avoid getting out of breat

Washington, April 12 : A Wake Forest University researcher has successfully created 18 types of tissue, including a sheep heart valve, in his laboratory.

Washington, April 12 : Scientists have developed a sensor-based system which, when worn in the pockets of a vest, can continuously monitor the air around persons prone to asthma attacks.