Latest from Focus...
02/09/2014
01/09/2014
28/08/2014
If you have the Facebook app installed on your smartphone then you might have noticed the social network is insisting that you download its dedicated messaging app. Add your vote to our poll to let us know what you think of the...
Q&A
26/08/2014
21/08/2014
21/08/2014
In this month’s Focus: the coming age of teleportation, Formula E gets ready to go, the war on smog, and how to swat a fly
Q&A
21/08/2014
Gallery
Apollo 11 in pictures
Poll

If you have the Facebook app installed on your smartphone then you might have noticed the social network is insisting that you download its dedicated messaging app. Add your vote to our poll to let us know what you think of the new app...

Have you installed Facebook Messenger on your smartphone? Have you installed Facebook Messenger on your smartphone?

If you have the Facebook app installed on your smartphone then you might have noticed the social network is insisting that you download its dedicated messaging app. Add your vote to our poll to let us know what you think of the new app...

Q&A

No. A shadow is cast because the direct rays of light from a source are blocked by an intervening object. The point on the floor that these rays would otherwise have hit, is consequently less...

Some reptiles, notably snakes, don't have ears at all. Those that do have a much simpler ear design than mammals, with the eardrum either flush with the side of the head or only slightly recessed...

In a word, radioactivity. We’re all living on top of a vast natural nuclear reactor, packed with uranium, thorium and potassium that ended up trapped inside the Earth during its formation...

Probably, but not necessarily. Body language varies with age, sex and culture, but some features are more or less universal. Even blind people who have never watched anyone else doing it throw...

At first sight an autogyro looks like a rudimentary helicopter as they both have large horizontal rotor blades. But unlike a helicopter, the rotors on an autogyro are not powered. Instead, the...

Although both dogs and horses often become more energetic in windy conditions, it is probably for different reasons. Dogs appear to enjoy the wind and become more playful and boisterous, whereas...

It’s called trypophobia and it’s not a fear of open man-holes or caves. Rather, it is the revulsion some experience when they look at asymmetric clusters of small holes, or dark spots...

In general, low temperatures will slow bacterial reproduction and the chemical reactions associated with spoilage. But for some foods, other processes are accelerated. For example, the cell...