Most US women face stroke risk

Researchers in Japan have invented a tiny brain which can act as a remote control for swarms of nano-machines.They simultated eight such nano-machines to create a 'nano-factory'.According to experts,nano-machines could also be used to boost the processing power of future computers.They also have high hopes for nano-machines in treating diseases.The machine is made from 17 molecules of the chemical duroquinone.Each one is known as a 'logic device'.

Japanese researchers have developed a prototype miniature robot that can be inserted through an incision and used to perform medical procedures deep inside the body. The beetle-shaped robot,which weighs five grammes and measures two centimetres in length and one in diamter, is the result of three years of work by researchers from Ritsumeikan University and its partners. The tiny robot incorporates various medical devices including a small camera, sensors and a drug delivery injector, which could reduce the need for surgery. Data is sent to a computer through a slim cable although researchers hope to develop a transmitter.