成人快手

Are there more black men in college or prison in the US?

Last week the US Speaker said that there were more black men in prison than in college.

• 10 mins

Can big data save lives?

Ruth Alexander speaks to Kenneth Cukier about how data can be used.

• 10 mins

That's not much gold

What if a super-villain took control of the world鈥檚 gold and melted it into a cube?

• 10 mins

Communicating Risk

It's the 4th anniversary of the earthquake which devastated the city of L鈥橝quila in Italy.

• 10 mins

Margaret Thatcher in numbers

Baroness Margaret Thatcher, who died aged 87, was Britain鈥檚 first female prime minister.

• 10 mins

Austerity: A Spreadsheet Error?

The story of the student who uncovered a mistake in a famous economic paper

• 10 mins

Are Manchester United a one-man team?

Lead scorer power calculated; and, maths problems raised in the Kercher murder case

• 9 mins

The Maths of Mozart and Birds

The maths behind Mozart's opera The Magic Flute

• 10 mins

How do you calculate a dog鈥檚 true age?

It is often said that one dog year equals seven human years. But is it true?

• 9 mins

Cancer Risk and Romanian crime

Assesing the probabilities of cancer and is the UK suffering a Romanian crime wave?

• 9 mins

Ryanair punctuality; mistakes in academic papers

Ryanair claims that more than 90% of its flights land on time but do the numbers prove it?

• 9 mins

The Maths of Spies and Terrorists

How feasible is it for the authorities to keep track of everyone on their watch list?

• 9 mins

Sex on the Brain?

It is often said that men think about sex every seven seconds, but is it true?

• 9 mins

Does a Child Die From Hunger Every 15 Seconds?

It is a popular statistic used by celebrities and charity campaigners but is it true?

• 9 mins

Will 40 per cent of the world's workforce really be in Africa by 2050?

How do we calculate future population projections in Africa?

• 9 mins

How Long Will You Live?

Why life expectancy around the world has increased by six years in the past two decades

• 9 mins

Does sex really make the world wide web go round?

Is the internet really 37% porn and does American football have a crime problem?

• 9 mins

Does a Child Die From Hunger Every 15 Seconds?

It is a popular statistic used by celebrities and charity campaigners but is it true?

• 9 mins

Egypt: Biggest Protest in History?

Was the Egyptian uprising which ousted President Mohamed Morsi the biggest ever seen?

• 9 mins

Analysing Chris Froome's Tour de France victory

What do the numbers tell us about Chris Froome's Tour de France performance?

• 9 mins

What is the Most Visited Country in the World?

Which countries top the most visited country list and how much do tourists spend there?

• 9 mins

Where could we fit the entire world鈥檚 population?

Where could we fit the entire world鈥檚 population and the effectiveness of soccer managers?

• 9 mins

The Magic of Maths

How a love of magic led to a love of maths for Stanford professor Persi Diaconis

• 9 mins

Is Coffee Bad for You?

How dangerous is your daily caffeine fix?

• 9 mins

Counting Climate Migrants

Is it true that environmental problems will create 200 million migrants?

• 9 mins

The Death Toll in Syria

How accurate are the reported death estimates in the Syrian conflict?

• 9 mins

Sexual Violence and Statistics in Asia

A report suggests almost a quarter of men in some Asian countries admit rape. Is it true?

• 9 mins

Rush: Formula 1 Risk

How dangerous was motor-racing in the 1970s? Plus: environmental facts about plastic bags

• 9 mins

Is the World's Population Growing Out of Control?

Is Sir David Attenborough right about global population projections?

• 9 mins

Have Mosquitoes Killed Half the World?

Have mosquitoes been responsible for the death of half the people who have ever lived?

• 9 mins