成人快手

The Y Chromosome

How the Y chromosome transforms a female embryo to a male one

• 17 mins

Blue Jeans

Why do blue jeans have such global appeal?

• 17 mins

The Evolution of Beards

How did beards evolve and what is their purpose?

• 17 mins

Why do we Draw?

What makes us draw, how do we get good at it and what do we reveal through our drawings?

• 17 mins

How Chillies Became Hot

The origins and history of chillies and why we eat a food that burns

• 17 mins

Why do People Take Risks?

Why do some people expose themselves to risks and why are we so bad at assessing them?

• 17 mins

Why Do We Need Cash?

We have all used cash but what exactly is it and do we still need it?

• 17 mins

Nationality

How would you define yours and how much does it matter?

• 17 mins

Why do Top Sportsmen and Women Choke?

Why do we lose the ability to do routine tasks under pressure?

• 17 mins

Encryption

What is encryption and why do we do it?

• 17 mins

What is a 成人快手?

Why is a home so important and how does it shape us?

• 17 mins

Why do we travel?

Mike Williams asks why do we leave the comfort of our homes to go travel?

• 17 mins

Why Do We Need Diaries?

They hold our secrets, and preserve our memories, but why do we need diaries?

• 17 mins

Talking about Death

It鈥檚 something that will come to all of us. So why is it so hard to talk about death?

• 17 mins

Why do people sacrifice their lives?

Why do people give their lives for a nation? For a cause?

• 17 mins

World War One: Sacrifice

An exploration of the meaning of sacrifice to mark the centenary of World War One

• 49 mins

Why do we have Human Rights?

Where do Human Rights come from and how are they used?

• 17 mins

Why do Humans Need so Much Space?

Why do we have such a complicated relationship with the space we live in?

• 17 mins

Why Does the World Love Drinking Tea?

Why tea is the second most popular drink in the world after water.

• 17 mins

Why Do We Love Dolls?

Despite all the new entertainments on offer, dolls endure. Why?

• 17 mins

Graffiti: Why do we do it?

Graffiti is both an ancient and modern activity, but why do we do it?

• 17 mins

Why Does Commuting Make us the Way we Are?

Why does commuting make us the people we are and how?

• 17 mins

Why Do we Support Sports Clubs?

Why do sports fans follow club teams, even when they may live thousands of miles away?

• 17 mins

Why Does Everyone Wear Trainers?

How did the trainer become an acceptable item of clothing?

• 17 mins

Why Do We Love the Bicycle?

How did the bicycle change the world?

• 17 mins

Why Can鈥檛 Some People Eat Certain Foods?

Why are food allergies increasing in the rich world?

• 17 mins

Tutoring

Why is private tutoring becoming so commonplace? And what impact does it have?

• 17 mins

What Makes us Want to Wear T-Shirts?

Mike Williams asks why these simple garments are so appealing

• 17 mins

Why do we wear Suits?

The suit, it鈥檚 survived for the three centuries. But what鈥檚 its appeal?

• 17 mins

Why Do We Wear Ties?

Why does the tie symbolise a desire to belong and conform as well as individuality?

• 17 mins