Plants as toxin purifiers

Ironing out pollution

A recently-developed cheap and environmentally-benign iron compound helps dispose of polluting nitrogen oxides

In their disposable cups

Summertime blues

Rock-hard sandwiches

Thin film, no more than a few microns thick, can endow substances with hardness, magnetic, superconducting and optical properties

Cleaner air

Endurance test for microorganisms

A technology for preserving food relies on creating a hostile environment for bacteria and fungi in whose presence food goes bad

Forever fresh

Miniature biosphere

The liquid heat trap

A giant pond at a dairy in Gujarat is the world's largest water storehouse of the sun's energy and heats about 80,000 litres of water everyday

Can't stand the smell

Helping bacteria float

A hint from cars

The computer plays postman

India seems ready to cash in on electronic mail, a cheap and fast way of communication in which messages are exchanged through computer networks.

Gutsy brains

Stars in the Nobel firmament

Switch on the window, please

Windows that change from clear to dark and back at the flick of a switch are set to make air-conditioning systems redundant in buildings, thereby …

Giving girls the horrors

Practical hunting

Giving theheart a hand

Manipulating reality

The concept of Virtual Reality -- simulating the real world -- is adding a new dimension to entertainment and education.

Buyer beware

An aspirin a day keeps cancer away

A US study has found reduced cancer risk among people who take aspirin frequently

The secret sex life of the sea urchin

With the unravelling of how fertilisation occurs in sea urchins, scientists may now better understand the reproduction process in higher mammals, …

Helping computers keep a tight hold on power

Scientists are trying to integrate a new type of circuits - called reversible circuits -- into computers to make them more energy efficient