Watch Now You Know - Season 1 | iwonder

Now You Know - Season 1

Now You Know - Season 1

20 min20184

Nature & Environment Health & Science

Will your pizza soon be delivered by a robot? Why do leaves change color in the fall? Can a silicon heart save lives? A whole world of science presented as short bite-sized facts. Now you know!

Now You Know - Season 1

20 min20184

Nature & Environment Health & Science

Will your pizza soon be delivered by a robot? Why do leaves change color in the fall? Can a silicon heart save lives? A whole world of science presented as short bite-sized facts. Now you know!

Now You Know: How Old is Humankind?

1. Now You Know: How Old is Humankind?

How old is humankind? Humans' closest relatives are the great apes - but human and chimp lineages diverged roughly five million years ago.

Now You Know: Why Do Plants Have Thorns?

2. Now You Know: Why Do Plants Have Thorns?

Plants can't run away if they're faced with danger. They need other ways...to protect themselves.

Now You Know: Why Do Fish Swim Against The Current?

3. Now You Know: Why Do Fish Swim Against The Current?

In rivers, salmon face an up-stream battle towards spawning grounds where they lay their eggs. But why?

Now You Know: How big can black holes get?

4. Now You Know: How big can black holes get?

Stars collapse or merge with each other. Their mass condenses into a point with huge gravity. But what is the result?

Now You Know: Why Do Flowers Have Different Colours?

5. Now You Know: Why Do Flowers Have Different Colours?

Their colors attract a few insects and birds - but what is it good for?

Now You Know: How Dangerous are Tattooes?

6. Now You Know: How Dangerous are Tattooes?

They contain carcinogenic substances like soot and nickel. But nowadays they seem to be everywhere. How dangerous are they?

Now You Know: How much Groundwater are there in the World?

7. Now You Know: How much Groundwater are there in the World?

It is difficult to access but inalienable for all life on earth. Where does all the groundwater come from?

Now You Know: How is it possible to navigate in space?

8. Now You Know: How is it possible to navigate in space?

You might think that out in space, there's nothing to help you get your bearings. But that's not true.

Now You Know: Where does the sand on the beach come from?

9. Now You Know: Where does the sand on the beach come from?

It's great for building castles and sculptures. But where does the sand come from?

Now You Know: Why is the earth's soil brown?

10. Now You Know: Why is the earth's soil brown?

Nature displays a variety of colors. Most of them consist of minerals. But how do minerals affect the color of soil?

Now You Know: The Future of data storage

11. Now You Know: The Future of data storage

Memory sticks, hard drives or magnetic tapes are good backup storage options for digital data. But there is more to come!

Now You Know: What are earth-like planets?

12. Now You Know: What are earth-like planets?

Are there any other planets able to harbor life? Maybe!

Now You Know: What is autism?

13. Now You Know: What is autism?

Autism can affect highly intelligent people - but what is it?

Now You Know: Where does the water on the earth come from?

14. Now You Know: Where does the water on the earth come from?

There used to be water in the atmosphere of our blue planet. But solar winds blew it into space. So where does the water on Earth come from?

Now You Know: Combating Bacteria?

15. Now You Know: Combating Bacteria?

A spin-off of space research may help solve a huge medical problem: Combating Bacteria!

Now You Know: Why do we like music?

16. Now You Know: Why do we like music?

Everybody likes music - but why does it have such a profound effect on us?

Now You Know: What is A Nanocar?

17. Now You Know: What is A Nanocar?

This is a magnified model of a nanocar. What can it do?

Now You Know: Why do dolphins swim differently from sharks?

18. Now You Know: Why do dolphins swim differently from sharks?

Why do whales and dolphins swim by moving their tails up and down while sharks swish side to side?

Now You Know: Why is it dark in outer space?

19. Now You Know: Why is it dark in outer space?

Space, infinite vastness and even more stars. But why is everything black?

Now You Know: How Does Alcohol Affect Our Body?

20. Now You Know: How Does Alcohol Affect Our Body?

Alcohol can relax and disinhibit. Some even say it has healing properties. Nevertheless, alcohol is a dangerous cytotoxin – but how exactly does it affect our body?

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