00:05If you've got a question and you don't know where to go,
00:08ask Nina for some help, cause she's got a science show.
00:11She makes sense of her senses while helping all her fans
00:14by doing her experiments with potions that went bad.
00:17Touch her tongue, fingers, eyes, ears, nose.
00:23Nina and the neurons find out what you need to know.
00:26Nina and the neurons find out what you need to know.
00:30Look, he helps us with our eyes and Felix with our touch.
00:33Ollie sniffs our smells and sends some bells she hears so much.
00:35But it's Ollie's brother, he helps us with our taste.
00:38Then Nina's little neurons and they're coming to your place.
00:41Touch her tongue, fingers, eyes, ears, nose.
00:47Nina and the neurons find out what you need to know.
00:51And the neurons find out what you need to know.
00:53Oh yeah!
00:59Oh, hello!
01:00I'm just sorting through some experiment photographs.
01:02Look at this one.
01:03Oh, I remember this experiment.
01:05It was a special experiment with underwater plants.
01:10Oh, I hear a beep.
01:11I see a flash.
01:12I wonder what they're going to ask.
01:23We've got a question for you.
01:26How does a television work?
01:28Oh, that's a great question.
01:30How does a television work?
01:32Now, a television is a brilliant invention.
01:34We just turn it on and all these pictures and sounds appear as if by magic.
01:39Why don't you all come down to my workshop and we'll check it out.
01:42See you soon, Nina.
01:44Bye!
01:45Bye!
01:48Well, I'm going to need some help to answer this one and I know just who to ask.
01:51OK, neurons, time to get to work.
02:14OK, today's question is how does a television work?
02:17Now, which neuron do you think will be most useful in helping us find the answer?
02:22Me!
02:22Me!
02:23Me!
02:23Me!
02:24Me!
02:24Me!
02:24Me!
02:25Me!
02:25Me!
02:25Me!
02:26Me!
02:26Me!
02:27Me!
02:31Me!
02:53Me!
02:54Me!
02:54Me!
02:55Me!
02:58Me!
02:58Me!
03:02It's Luke!
03:03Yes!
03:05Go Luke! Go Luke! Go Luke! Go Luke! Go Luke! Go Luke! Go Luke!
03:12Cool, Nina. I'll be looking out to help you.
03:16Today's question is how does a television work?
03:19And as the television is something we watch, Luke will be helping us today.
03:23But stand by, neurons. I may need help from all of you.
03:25Right, I need to get the workshop ready before the inventors arrive.
03:32Annie, Morgan and Charlotte want to find out all about the television.
03:36Televisions that are thin, televisions that are fat, televisions that are full of funny chat.
03:40So today, for one day only, Annie, Morgan and Charlotte become the inventors.
03:49Hi, guys.
03:50Hi, Nina.
03:51Oh, lovely to see you. Come on in. Come on in. Welcome to my workshop.
03:57So your question is, how does a television work? So why do you want to know that?
04:02We like watching our favourite programmes on the television and we wanted to know how it works.
04:07Well, to answer your question, I think the first thing we should do is to watch a bit of television.
04:12It might give us a clue as to how it works. Let's switch it on.
04:23Would you look at that? You just press a button and here, presto, all these pictures and colours appear.
04:31And the sounds too, Luke. You have to look and listen when you're watching the television.
04:38So we can watch lots of our favourite programmes on television, but how do they get there?
04:42Well, I think we need to get inside and have a closer look. So I'm just going to switch this
04:47off.
04:48Now, here we have a television.
04:50Now, taking things apart is my job. It can be dangerous, so don't do this yourself.
04:53That's right. Nina's been specially trained to do this.
04:58If you open up things that use electricity, you could hurt yourself.
05:05It looks very strange inside. How do the cats get onto the television?
05:10Well, sometimes the information that makes a programme gets carried to the television by an underground cable.
05:16But usually it gets carried to the television through the air by invisible waves.
05:22If something's invisible, it means you can't see it.
05:27That's right, bud. Now let me use my Nina cam.
05:30The information is taken by a wire to our television here.
05:38So the invisible waves carry sounds and still pictures.
05:42Now, do you know what a still picture is?
05:44A photograph.
05:46That's right. A still picture is one that's not moving, like a photograph.
05:49So when these invisible waves get picked up by the receiver, they then get sent to this bit here.
05:57And that puts the pictures up on the screen.
06:00So, still pictures are usually carried to our television by invisible waves.
06:06Oh, and I know something else that uses invisible waves.
06:09Shall we go and see another invention in action?
06:11Yeah!
06:11Ha ha ha! Let's go!
06:20Off they go. I really enjoy seeing the big inventions.
06:24So what else, other than a television, uses invisible waves?
06:30Well, we'll find out soon! I think we've arrived!
06:35I've brought you here because this is where they build satellites.
06:38Now, do you know what a satellite is?
06:40Is it something that goes into space?
06:42Yes, it is.
06:44So let's go inside and have a close look at one.
06:46Let's go!
06:48Okay, let me just open this really big door.
06:52Ha ha!
06:52Oh!
06:55Hmm.
06:56It looks very strange.
06:58Metal here, metal there.
07:00Maybe it's a special type of plane.
07:02Or a robot!
07:03They're made of metal, too!
07:06Okay, guys, come round here.
07:08So this is a model of a satellite,
07:11but a real one is actually four times bigger.
07:15And this metal room is where they test real satellites.
07:19And we have to wear these suits
07:21because it's very important that no dust gets in here
07:24because if any dust gets inside a satellite,
07:26then it won't work as well.
07:28What does a satellite do?
07:29Well, a satellite goes up into space
07:32and travels round the Earth collecting information
07:35and taking pictures to send back to us.
07:37And they're able to send that information
07:39using the same invisible waves
07:41that send pictures to your television.
07:43What kind of pictures do they take?
07:45Oh, well, I happen to have one here.
07:49Now, do you recognise anywhere in this picture?
07:52Is that your science centre?
07:54Oh, well done!
07:56That is the science centre.
07:57So this is a picture taken from space.
07:59So we know that invisible waves carry information
08:02and that the information they carry to a television
08:05is lots of still pictures, like photographs.
08:07But we still don't know how a television
08:10turns the still pictures into moving pictures.
08:12Come on, inventors, let's go back to the workshop.
08:19Well, we've been on a really long journey
08:21to find out all about the television,
08:23but who actually invented it?
08:26Well, listen up.
08:27I can tell you that.
08:30It's probably my favourite invention ever.
08:34Not everyone agrees who actually invented the television,
08:38so I'm going to tell you about one inventor
08:40called John Logie Baird.
08:43For years, he tried to work out a way
08:45that he could transmit pictures.
08:47And then one day,
08:51he did it!
08:52Everyone was amazed at this invention,
08:55and we still love it today.
09:01So your question is,
09:03how does a television work?
09:04And so far we've found out
09:06that invisible waves carry information
09:08long, long distances.
09:10And they can also carry still pictures to a television,
09:13and the television puts them up on the screen.
09:16But we still don't know how these pictures are moving.
09:19So I think to find out,
09:20we need to get inventing.
09:22So today we're going to make our very own Flickr book.
09:25So the first thing we're going to do, guys,
09:27is cut out these special still pictures.
09:29So take your scissors.
09:32Let's cut out number one first.
09:44Then cut out number two.
09:47And we'll do that all the way
09:48till we've cut them all out.
09:54Now do be careful and watch those fingers.
09:58Scissors can be very sharp.
10:04There we go.
10:06Fantastic job.
10:07Well done, girls.
10:08So we now have our Nina pictures
10:09with number one at the top.
10:11So next we are going to take our sticky notepad.
10:14Let's find the middle of our notepad.
10:17Doesn't matter if it's exact.
10:19Take number one, Nina,
10:21and let's pop just a little bit
10:24of glue
10:26onto the notepad
10:27and then stick number one, Nina, in.
10:31And let's put it in the middle
10:32and quite close to the edge.
10:35Excellent.
10:36Then lift that page
10:38and we're going to put
10:39number two
10:40in the next page.
10:43So exactly where you stuck it before,
10:45do the same
10:46on the next page
10:48and just put a little dob of glue,
10:50just a little dob.
10:51It doesn't need much to stick it.
10:57The last one.
11:03Oh, fantastic, guys.
11:04Well done.
11:06Now watch really closely
11:07as I flick the pages
11:09really quickly, OK?
11:13Nina, you're moving.
11:15That's right.
11:16So when I flick the book
11:16really quickly,
11:19it looks like I'm moving.
11:21Hey, look at Nina.
11:23I've never seen her
11:24do that experiment before.
11:26So why don't you have a go?
11:32So each picture
11:33is just a little bit different
11:35from the one before it
11:36and the one after it.
11:37So when you see
11:38the still pictures
11:39one after another
11:40really quickly,
11:41our eyes blend
11:43the pictures together
11:44so it looks like
11:45the picture's moving.
11:46and it's the same
11:47with a television.
11:52So your question was
11:53how does a television work?
11:55And I think we've answered it.
11:56We found out
11:57that a television
11:58has a receiver
11:59and a screen
12:00and the receiver
12:01gets lots of still pictures
12:03sent to it
12:03by invisible waves.
12:04and these still pictures
12:06get put up onto the screen
12:08one after another
12:09very quickly
12:10and our eyes
12:11turn these still pictures
12:12into moving pictures
12:13and that's how
12:15a television works.
12:16So thank you very much
12:17for your great question today.
12:19Thanks, Nina.
12:20Have fun!
12:21Bye!
12:27If you want to make
12:28today's invention
12:28just go to the Nina section
12:30on the CBeebies website.
12:32That'll give you
12:32all the instructions
12:33you need to make
12:33your very own
12:34or you may have
12:35other ideas
12:36of what you want to invent.
12:43We all love inventing
12:47We all love inventing
12:53Why don't you try it too?
12:56Inventions make life easier
12:59and help us get things done
13:01I always like to take a look
13:05at how they work and run
13:08Go inventing!
13:09We all love inventing
13:11Go inventing!
13:15We all love inventing
13:17Why don't you try it too?
13:20Oh, I've had a brilliant day
13:23especially all those pictures
13:25and sounds
13:26Ace!
13:27It's been a marvellous day
13:29Who would have thought
13:30a television had so much
13:32hidden inside it?
13:34I've had a bobby day
13:36but the satellite
13:37was the best
13:38because it came
13:39all the way
13:40from outer space!
13:43I really enjoyed
13:45myself today
13:45I liked it
13:46when everyone
13:47made the flicker book
13:48there was so much
13:49cutting and sticking
13:50and flicking
13:50that was fun
13:51Ah, it's been
13:53such a great day man
13:55It's amazing
13:56how our eyes
13:57can turn
13:58still pictures
13:59into moving ones
14:01Our day's been bursting
14:03with inventions
14:04I hope you've enjoyed it
14:05See you again soon
14:06Bye!
14:07Bye!
14:07Lina and the new farm
14:11Go inventings!
Comments