The Telegraph
| Monday, April 24, 2017 |

Knowhow

A spy in the sky

Balloon probes have led Calcutta scientists to believe pilots flying in tropical countries are exposed to very high doses of radiation. Manasi Shah has the story 

Astrophysicist Sandip Chakrabarti has suggested to the Directorate General of Civil Aviation (DGCA) that the cruising height of commercial flights be lowered whenever there is a solar flare. A solar flare is a brief eruption of high-energy... | Read»


Sun power

MIT researchers have come up with a contraption that can make water out of thin air! It is made up of a material that sucks in all available molecules of water vapour in the atmosphere. It then uses sunlight to condense the vapour into liquid... | Read»


Get the password right

#TechTonic / Surit Doss

I have become paranoid about hackers. How do I know if some of the passwords that I use for various sites and banking are actually secure? | Read»


To banish bad breath

Bad breath makes us self-conscious. About 25 per cent of the population feel that they have bad breath, when actually they don't. Another 10 per cent really have foul breath but fail to recognise it. It is an embarrassing problem and even close... | Read»