成人快手

Can we be too clean?

Cleanliness and health go hand in hand, but have we gone too far?

• 27 mins

Is there micro-life on Mars?

The hunt for Martians on the Red Planet continues 鈥� but has life already been taken there?

• 27 mins

Why are Dogs so Different?

There are over 500 breeds of dog 鈥� but are they really as different as they seem?

• 27 mins

What is the Real Time?

The history of time-keeping and the science behind the most accurate clocks today

• 28 mins

Should we Use Ships to Transport Fresh Water?

Earth鈥檚 surface may be 70 percent water but many places are struggling to access it.

• 27 mins

Is There Life After Death?

Examining the evidence that humans could somehow come back into existence after dying.

• 27 mins

Why are Cats Loners?

Being social has lots of benefits 鈥� so why do cats live alone?

• 26 mins

Could a Robot be your Doctor?

We see a robot at work in the operating theatre and meet the robots Molly and Pepper.

• 29 mins

Can Trees Help us Fight Air Pollution?

Trees take in carbon dioxide but they also convert some of the toxic gases in our air.

• 27 mins

Is Being Fat a Choice?

Can we blame our weight on factors like genes or our environment?

• 27 mins

Science at the Movies

Science meets film in a special edition recorded live at South by Southwest Festival, USA.

• 26 mins

Does Weather Affect our Health?

Can a rain shower really cause aches and pains?

• 26 mins

Why Do We Have So Many Accents?

What makes us sound so different from each other 鈥� even when speaking the same language?

• 26 mins

Should we eat Insects?

Should we eat more insects? CrowdScience meets the people turning caterpillars into food

• 26 mins

Space Mining

Could we mine on asteroids?

• 26 mins

How Many People Can Earth Support?

When will we reach 鈥榩eak human鈥� and how will we cope?

• 26 mins

Are Fingerprints the Best Form of ID?

CrowdScience explores the biometric systems capturing our identities

• 26 mins

Why Do We Have Males and Females?

We plunge into the weird world of sex determination.

• 26 mins

Where鈥檚 my Ejector Seat?

Why can鈥檛 commercial planes have ejector seats, like fighter jets do?

• 27 mins

Why is Childbirth Painful?

Why is it more painful for some women than others?

• 26 mins

Why do Human Faces Look so Different?

Unlike most animals, human facial features evolved to have more variety. But why?

• 30 mins

What鈥檚 the Oldest Living Thing?

What is the oldest tree or other living organism on Earth?

• 27 mins

Why Does It Always Rain on Me?

How do microclimates affect our weather and our lives?

• 27 mins

Can Your Lifestyle Be Passed on to Future Generations?

Can your lifestyle be passed on to future generations?

• 29 mins

Can Plants Talk?

This week we hack the secret plant communication network 鈥淭he Wood Wide Web鈥�.

• 28 mins

Do We Think in Words?

Do we think in words, images, or abstract concepts?

• 28 mins

Does Time really Exist?

Does Time really exist or is it all in our heads?

• 30 mins

Why is it so Hard to Quit Smoking?

We look at how nicotine tricks the brain into thinking tobacco鈥檚 good for us.

• 28 mins

Could a Computer Judge My Crime?

How much of the justice system could be replaced by technology?

• 27 mins

What Do Our Accents Say About Us?

Why do we sound so different from each other 鈥� even when we speak the same language?

• 26 mins