Saranya Devi

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Hybrid cars: Where do they perform most efficiently?

Hybrid cars are good for the environment, right? Their ability to switch to battery power means more miles to the gallon, and lower greenhouse gas emissions.<p>These things are true, however recent research suggests that precisely how green hybrid vehicles are may depend on traffic levels, road design …

Internal Combustion Engine

What makes great thinkers great?

Our picks of the week from around the web, including why it’s better to be interesting than true, and how many people it takes to colonise another star system.<p>Life after death<br>Hannah Bloch & Peter Miller | National Geographic | 8 April 2014<br>Bruno Frohlich specialises in “the noninvasive study of just …

Gorillas

Will nuclear-powered spaceships take us to the stars?

In the 1950s, rocket scientists dreamed of atomic-powered spaceships. Now these far-fetched designs might help a new generation explore the cosmos.<p>Project Orion has to be the most audacious, dangerous and downright absurd space programme ever funded by the US taxpayer. This 1950s design involved …

Nuclear Energy

Why people are getting fatter

Our picks of the week from around the web, including the tricks of the food trade, how AI could change our world and China’s secretive tech giant.<p>Why Apple is like a movie studio<br>Walter Mossberg | Recode | 22nd April 2014<br>Since Steve Jobs died, Apple isn’t making originals any more, it’s making …

Artificial Intelligence

Why it’s time to ditch the word ‘revolution’ in tech

If there is an idea associated with technology that needs to be ditched, it's that we are, or will be, witnessing a ‘revolution’.<p>Whether it is graphene, 3D printing, synthetic biology, shale gas, big data or bitcoin, any new and major discovery, technique or invention invokes the R-word. It’s the …

Carbon Emissions

Does mixing alcoholic drinks cause hangovers?

Many people believe that mixing wine, beer and spirits causes nasty hangovers. Are they right? Claudia Hammond studies the evidence<p>"Grape or grain, but never the twain." So runs the old folk wisdom that advises against drinking wine or beer on the same night. It is far from uncommon to hear people …

Alcohol

How to create the ideal password

Our picks of the week from around the web, including making memorable yet secure passwords, the state of synthetic biology and how rumours spread on Facebook.<p>A eulogy for Twitter<br>Adrienne LaFrance & Robinson Meyer | Atlantic | 30 April 2014<br>“Something is wrong on Twitter. And people are noticing. Or, …

San Francisco

Human hibernation: Secrets behind the big sleep

The extreme survival tricks of hibernating animals… and the occasional human… could help us overcome life-threatening injuries, as Frank Swain discovers.<p>Imagine it: you have been rushed into the emergency room and you are dying. Your injuries are too severe for the surgeons to repair in time. Your …

Medicine

The best science and technology pictures of the week

The most impressive images this week from science, tech and health, including the birth of the Universe, edible scorpions and a bear with a slipped disc.<p><b>More galleries</b><p>Amazing air displays and breathtaking nature<p>Frightening lightning and dust storms<p>Plane trails and tadpole stars<p>Volcanic plumes and …

Royal Navy

A is for algorithm

“LET’S do it again,” calls a ten-year-old. Once more, pupils clasping printed numbers follow tangled lines marked with white tape on the floor of …

Latest Film Reviews | Movie News | Features | Interviews - Empire

★★★★★ Journeyman<p>In boxing, a journeyman refers to a fighter with moderate skill who doesn’t ...<p>★★★★★ Blockers<p>Movies dealing with teenage sexuality …