Engineers have long dreamed of semiconductor chips that could handle both optical and electrical signals. But silicon hasn't been practical for processing pulses of tight. And the semiconductor

The revolution in microelectronics that created cellular phones and palmtop computers now allows doctors to take their healing equipments out of the hospital and on to the road. A US-based firm

The world's first computerised library of human anatomy has been created. Medics and medical enthusiasts can now 'virtually' handle a man or woman's anatomy

Soon it will be pos sible to receive a call or dial a number anywhere, anytime, on your wristwatch

Electron crystallography, although catching up fast, has a disadvantage: there is a strong interaction between the electrons of the probe and the sample itself. Now, T E Weirich and his colleagues

Successful experiments in measuring individual carbon nanotubes opens pathways for manufacture of a diverse range of products

Shake a few bits of silicon in a petri dish containing water and lo, you have a three dimensional structure!

A research group has measured the electric resistance of wires with a single xenon atom and two xenon atoms in series; the results call for some revision in theory

After being completely ousted following the advent of transistors, vacuum tubes are again finding a lot of uses in electronic gadgets

Two physicists from France - Albert Manque and Jean Xavier Zweistein have claimed to have discovered the largest fundamental particle ever known. While experimenting with vacuum tubes, they found