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  • 4 months ago

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00:00If 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 and with bags.
00:17Touch her tongue, fingers, eyes, ears, nose.
00:23Nina and the new ones find out what you need to know.
00:26Nina and the new ones find out what you need to know.
00:30Look, he helps us with our eyes and Felix with our touch.
00:33Ollie slips our smells and sends some bells she hears so much.
00:36But 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 new ones find out what you need to know.
00:51And the new ones find out what you need to know.
00:53Oh yeah!
00:58Oh, 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.
01:13Oh, that's a great question.
01:27Oh, that's a great question.
01:29How does a television work?
01:31Now, a television is a brilliant invention.
01:34We just turn it on and all these pictures and sounds appear as if by magic.
01:38Why don't you all come down to my workshop and we'll check it out.
01:41See you soon, Nina.
01:44Bye!
01:44Bye!
01:45Bye!
01:46Bye!
01:46Bye!
01:46Bye!
01:46Bye!
01:46Bye!
01:46Bye!
01:46Bye!
01:47Bye!
01:47Bye!
01:47Bye!
01:48Well, I'm going to need some help to answer this one and I know just who to ask.
01:51Okay, neurons, time to get to work!
01:54Okay, 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?
02:21Me!
02:22Me!
02:23Me!
02:24Me!
02:25Will it be Fabulous Felix?
02:27I can help so very much if you need the sense of touch.
02:31Will it be Beautiful Belle?
02:33I send messages to Brain from ear.
02:35If there's a sound, I'll help you hear.
02:38Will it be Lovely Look?
02:40For looking and seeing, day or night, I'll help you with your sense of sight.
02:44Will it be Awesome Ollie?
02:46If it's Pony or Whiffy, but you can't tell, my messages help your sense of smell.
02:51Or will it be baby bud?
02:53Sour, salty, bitter or sweet.
02:56I'm your taste buddy whenever you eat.
03:02It's Luke.
03:03Yes.
03:05Go Luke. Go 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.
03:26Right. 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.
03:38Televisions 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.
03:52Oh, lovely to see you. Come on in.
03:54Come on in. Welcome to my workshop.
03:57So your question is how does a television work?
04:00So why do you want to know that?
04:02We like watching our favourite programmes on the television
04:05and we wanted to know how it works.
04:07Well, to answer your question, I think the first thing we should do
04:10is to watch a bit of television.
04:12It might give us a clue as to how it works.
04:14Let's switch it on.
04:19Ow.
04:23Would you look at that?
04:25You just press a button and here, presto, all these pictures and colours appear.
04:31And the sounds too, Luke.
04:33You have to look and listen when you're watching the television.
04:38So we can watch lots of our favourite programmes on television,
04:41but how do they get there?
04:42Well, I think we need to get inside and have a closer look.
04:46So I'm just going to switch this off.
04:48Now, here we have a television.
04:50Now, taking things apart is my job.
04:51It can be dangerous, so don't do this yourself.
04:54That's right.
04:56Nina'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.
05:07How do the cats get onto the television?
05:10Well, sometimes the information that makes a programme
05:13gets carried to the television by an underground cable.
05:16But usually it gets carried to the television through the air by invisible waves.
05:23If something's invisible, it means you can't see it.
05:27That's right, bud.
05:28Now, let me use my Lina 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.
05:46A still picture is one that's not moving, like a photograph.
05:50So when these invisible waves get picked up by the receiver,
05:54they 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?
06:11Yay!
06:12Let's go!
06:13Off they go.
06:21I really enjoy seeing the big inventions.
06:25So what else, other than a television, uses invisible waves?
06:30Well, we'll find out soon.
06:32I think we've arrived!
06:35I've brought you here because this is where they build satellites.
06:39Do 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.
06:55Hmm, it 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.
07:07So 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 because it's very important that no dust gets in here.
07:24Because if any dust gets inside a satellite, then it won't work as well.
07:28What does a satellite do?
07:29Well, a satellite goes up into space and travels round the Earth collecting information and taking pictures to send back to us.
07:37And they're able to send that information using the same invisible waves that send pictures to your television.
07:43What kind of pictures do they take?
07:46Oh, 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.
08:00So we know that invisible waves carry information.
08:03And that the information they carry to a television is lots of still pictures, like photographs.
08:08But we still don't know how a television turns the still pictures into moving pictures.
08:12Come on, inventors.
08:13Let's go back to the workshop.
08:14Well, we've been on a really long journey to 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 called John Logie Baird.
08:43For years he tried to work out a way that he could transmit pictures.
08:47And then one day, he did it.
08:52Everyone was amazed at this invention.
08:55And we still love it to do.
09:01So your question is, how does a television work?
09:04And so far we've found out that invisible waves carry information long, long distances.
09:10And they can also carry still pictures to a television, and 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, we 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, is cut out these special still pictures.
09:29So take your scissors, let's cut out number one first.
09:34Then cut out number two.
09:47And we'll do that all the way till we've cut them all out.
09:50Now, 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 with 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.
10:17It doesn't matter if it's exact.
10:19Take number one, Nina.
10:21And let's pop just a little bit of glue onto the notepad.
10:28And then stick number one, Nina, in.
10:31And let's put it in the middle and quite close to the edge.
10:35Excellent.
10:36Then lift that page and we're going to put number two in the next page.
10:43So exactly where you stuck it before, do the same on the next page.
10:48And just put a little daub of glue, just a little daub.
10:51It doesn't need much to stick it.
10:57The last one.
11:02Oh, fantastic, guys.
11:05Well done.
11:06Now watch really closely as I flick the pages really quickly, OK?
11:13Nina, you're moving.
11:15That's right.
11:16So when I flick the book really quickly, it looks like I'm moving.
11:21Hey, look at Nina.
11:23I've never seen her do that experiment before.
11:26So why don't you have a go?
11:27So each picture is just a little bit different from the one before it and the one after it.
11:37So when you see the still pictures one after another really quickly, our eyes blend the pictures together so it looks like the picture's moving.
11:46And it's the same with a television.
11:47And it's the same with a television.
11:48So your question was, how does a television work?
11:55And I think we've answered it.
11:56We found out that a television has a receiver and a screen and the receiver gets lots of still pictures sent to it by invisible waves.
12:04And these still pictures get put up onto the screen one after another very quickly and our eyes turn these still pictures into moving pictures.
12:13And that's how a television works.
12:16So thank you very much for your great question today.
12:19Thanks, Nina. Bye.
12:21Bye.
12:27If you want to make today's invention, just go to the Nina section on the CBeebies website.
12:31That'll give you all the instructions you need to make your very own.
12:34Or you may have other ideas of what you want to invent.
12:39Pikes.
12:39Pikes.
12:40Minoculars.
12:42Television.
12:42Speaking.
12:43Inventions.
12:43And go.
12:44We all love inventing.
12:48Oh, oh, oh, oh.
12:50Go inventing.
12:51We all love inventing.
12:54Why don't you try it too?
12:57Inventions make life easier and help us get things done.
13:02Go inventing.
13:03I always like to take a look at how they work and run.
13:08Go inventing.
13:09We all love inventing.
13:11Oh, oh, oh.
13:13Oh, oh, oh, oh.
13:13Go inventing.
13:14We all love inventing.
13:17Why don't you try it too?
13:20Oh, I've had a brilliant day.
13:23Especially all those pictures and sounds.
13:26Ace.
13:27It's been a marvellous day.
13:29Who would have thought a television had so much hidden inside it?
13:33I've had a baby day.
13:34I've had a baby day.
13:36But the satellite was the best.
13:38Because it came all the way from outer space.
13:42I really enjoyed myself today.
13:45I liked it when everyone made the flicker book.
13:48There was so much cutting and sticking and flicking.
13:51That was fun.
13:51Ah, it's been such a great day, man.
13:55It's amazing how our eyes can turn still pictures into moving ones.
14:02Our day's been bursting with inventions.
14:04I hope you've enjoyed it.
14:05See you again soon.
14:06Bye.
14:07Bye.
14:07Bye.
14:07Bye.
14:08Nina and the new friend.
14:12Go inventing.
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