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Q&A
Do smells pass through liquids?

Yes, although many aroma molecules have low solubility in water and their diffusion is slower because there are more solvent or solid molecules in the way.

Does Mars have any gravity?

The very fact that a celestial body has mass gives it gravity, but that gravity’s strength depends on how heavy the object is. Mars is smaller than Earth – its diameter is about half...

What is pins and needles?

A nasty tingling, burning, and often painful sensation that’s usually caused by cutting off the blood supply to a group of nerves. This typically happens if you sit or kneel awkwardly and...

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Blog
Enter the Dragon
18/05/2012 - 16:59
Tomorrow (Saturday 19 May) will see the Dragon spacecraft lifting off from Cape Canaveral in a bid to make space history. Read on for our whistle-stop guide to the big event... An artist's...
All the world's water – Part II
18/05/2012 - 14:15
Earlier this week we posted up an image showing the water droplet that'd be formed if all of the water on the Earth was collected together (click here to see it). Now, Howard Perlman at the U.S....
Ancient arthritis
17/05/2012 - 14:33
Even ancient reptiles were susceptible to arthritis – that’s the discovery of researchers studying the colossal jaws of a 150-million-year-old reptile. Dr Judyth Sassoon with the lower...

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Features
Science of Fracking
Science of Fracking
20/04/2012

Shale gas could solve the fuel crisis. But in parts of Europe and America it's been banned over safety fears, and it was blamed in 2011 for a couple minor earthquakes in the UK. Robert Matthews investigates.

Artificial Meat
The Future of Food
20/02/2012

Last year, the world population reached 7 billion. With more mouths to feed, could synthetic meat help meet the growing demand for food? JV Chamary finds out.

Planet Dinosaur
22/09/2011
As a new BBC TV series brings dinosaurs back to life, Cavan Scott reveals how luck played a part in the discovery of many of its stars
 


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Poll
 

Should the X Factor judges be replaced with computers? Should the X Factor judges be replaced with computers?

 

Quiz
Weekly Science Quiz 18/05/12
Each week Focus gives you the chance to test your knowledge of the most current stories in science. Take the 'Weekly Science Quiz' to see how up to date you really are.
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Reviews

Gadgets

Nest Labs Learning Thermostat
$249 (£149) plus P&P

Games

The Legend of Zelda: Skyward Sword
£49.99

Books

Priceless
£12.99 (304pp, pbk)

Steven Landsburg reviews a book that pulls apart our strange relationships...

DVDs

The Road
£19.99

A bleak story of a...

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