成人快手

Why has Hong Kong鈥檚 Covid wave been so bad?

What鈥檚 behind one of the worst Covid death rates ever?

• 9 mins

Will the war in Ukraine cause a global wheat shortage?

How much of the worlds wheat comes from Ukraine and Russia

• 9 mins

Did tea-drinking cut deaths in the Industrial Revolution?

How tea became an accidental lifesaver in 18th Century England.

• 9 mins

Subitising and simplifying: how to better explain numbers

How can we clearly explain complex numbers to the public without losing their meaning?

• 9 mins

Understanding India through data

What can data tell us about a country of 1.4 billion people?

• 9 mins

Sweden鈥檚 polarising pandemic response

Has Sweden鈥檚 pandemic response been a triumph or a disaster鈥�or something in-between?

• 9 mins

Have the oceans become 30% more acidic?

Tim Harford asks how we measure the health of our oceans

• 9 mins

Did the WHO get some of its excess death estimates wrong?

We look at the World Health Organisation鈥檚 latest estimates of the pandemic鈥檚 death toll

• 9 mins

Are just 100 companies responsible for 71% of global emissions?

Looking at numbers on green house gas emissions and stress.

• 9 mins

Noisy decisions

Nobel prize winning psychologist Daniel Kahneman on how 'noise' impacts decision making

• 9 mins

Are girls starting puberty earlier?

We look into a claim that the age of girls鈥� puberty is falling rapidly

• 9 mins

Hannah Fry: Understanding the numbers of cancer

The maths professor on the choices she and others have faced after a cancer diagnosis

• 9 mins

How often do people have sex?

Looking at sex and statistics in Japan and America.

• 9 mins

Ed Sheeran and the mathematics of musical coincidences

Ed Sheeran thinks that musical coincidences will always happen鈥� but do the numbers agree?

• 9 mins

How many American women will have an abortion in their lifetime?

In the wake of the historic overturning of Roe vs Wade, we look at the statistics.

• 9 mins

Does it take 10,000 litres of water to make a pair of jeans?

The numbers behind water use and denim production

• 9 mins

Is Uganda about to become a middle income country?

We assess President Museveni鈥檚 claim that Uganda is nearing a higher economic status.

• 9 mins

Does the World Athletics Championships have a false start problem?

We examine the rules and tech of false starts after the disqualification of Devon Allen.

• 9 mins

How our world measures up

From ancient tally bones to a jar of peanut butter, a look at the history of measurement

• 9 mins

Debunking the Liverpool FC conspiracy theory

We debunk spurious rumours that Liverpool FC use asthma medication to enhance performance

• 9 mins

Is opinion polling broken?

Following some high profile slip-ups in recent US elections, is opinion polling broken?

• 9 mins

The numbers behind 'natural' birth control

We examine online claims about the effectiveness of 鈥渘atural鈥� birth control methods

• 9 mins

Kenya鈥檚 Election Rounding Error

Official figures didn鈥檛 add up - but due to rounding, not fraud

• 9 mins

Can we use maths to beat the robots?

Why improving how we teach and think about maths could help us keep an edge over machines

• 9 mins

Is a third of Pakistan really under water?

We investigate a widely reported claim as Pakistan deals with devastating flooding

• 9 mins

How bad is fashion for the environment?

Does fashion really account for 10% of greenhouse gas emissions?

• 9 mins

Ukraine鈥檚 progress in numbers

We ask how much progress Ukraine has really made in recapturing territory from Russia.

• 9 mins

Nasa鈥檚 asteroid collision: How many asteroids are really out there?

As Nasa rams an asteroid to try and alter its course, how many are yet to be discovered?

• 9 mins

Catching chess cheats with data

A cheating scandal is rocking the world of chess - and data is at its heart

• 9 mins

Ben Bernanke and the magic of banking

Tim Harford explains the work of this year鈥檚 Nobel Economics Prize winners

• 9 mins