Latest from Focus...
21/11/2014
Elon Musk, the founder of PayPal, Tesla and SpaceX, is considering launching 700 satellites to provide everyone on the planet with internet access.
20/11/2014
Q&A
19/11/2014
Q&A
18/11/2014
10 everyday objects
17/11/2014
13/11/2014
In this month’s Focus: journey to the centre of the Earth, the world's worst smells, the science of SAD, mystery messages from space, and tablets on test.
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10 everyday objects
Poll

Elon Musk, the founder of PayPal, Tesla and SpaceX, is considering launching 700 satellites to provide everyone on the planet with internet access.

Is internet access a basic human right? Is internet access a basic human right?

Elon Musk, the founder of PayPal, Tesla and SpaceX, is considering launching 700 satellites to provide everyone on the planet with internet access.

Q&A

At the manufacturing stage, when juice from oranges has been extracted and the pulp removed, the product is processed into two forms: not-from-concentrate (NFC) or bulk frozen concentrated orange...

There is nothing particular about cheese, but if you go to bed with a full stomach, you may spend more of the night in REM (rapid eye movement) sleep, which is when your most vivid dreams occur....

Height in humans is about 70 per cent genetic and 30 per cent environmental, but there are many different genes that all contribute to your final height. Women generally stop growing any taller...

It's rare to see a dead bird on the ground, but it is also rare to see a dead mouse or rat - which are generally much more numerous. We don't question this because we don't see rodents much when...

Ah, if only it were that easy. Noise cancelling works by generating a waveform that’s an upside down version of the original. Put the two together and they both disappear. But things get...

Pressure on the eyeball compresses the retinal artery. You don't have to press terribly hard to cut off the blood supply to the retina entirely. Deprived of oxygen, the photoreceptors can start...

It isn't, particularly. In Victorian England, seaside resorts acquired a reputation for the health-giving qualities of the air but this may just have been relative to the distinctly unhealthy city...

Like other metals, mercury is extracted from ores - one of the main varieties being cinnabar. It is found mostly in China, Spain and California. Droplets of liquid mercury can actually be found...

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