0:00:05 > 0:00:08# If you've got a question and you don't know where to go
0:00:08 > 0:00:12# Ask Nina for some help, cos she's got a science show
0:00:12 > 0:00:15# She makes sense of her senses while helping all her fans
0:00:15 > 0:00:17# By doing her experiments with potions and with bangs
0:00:17 > 0:00:19- # Touch your tongue - Tongue
0:00:19 > 0:00:20- # Fingers - Fingers
0:00:20 > 0:00:23- # Eyes,- Eyes,- Ears,- Ears,- Nose,- Nose
0:00:23 > 0:00:26# Nina and the Neurons find out what you need to know
0:00:26 > 0:00:29# Nina and the Neurons find out what you need to know
0:00:29 > 0:00:32# Luke, he helps us with our eyes and Felix with our touch
0:00:32 > 0:00:35# Ollie sniffs out smells And Belle, she hears so much
0:00:35 > 0:00:38# Bud is Ollie's brother He helps us with our taste
0:00:38 > 0:00:41# They're Nina's little Neurons And they're coming to your place!
0:00:41 > 0:00:43- # Touch your tongue - Tongue
0:00:43 > 0:00:44- # Fingers - Fingers
0:00:44 > 0:00:48- # Eyes,- Eyes,- Ears,- Ears,- Nose,- Nose
0:00:48 > 0:00:51# Nina and the Neurons find out what you need to know
0:00:51 > 0:00:55# Nina and the Neurons find out what you need to know! #
0:00:56 > 0:01:02Ah! Oh, hello, I'm just sorting through some experiment photographs.
0:01:02 > 0:01:05Look at this one. I remember this experiment.
0:01:05 > 0:01:08It was a special experiment with underwater plants.
0:01:08 > 0:01:11BEEPING
0:01:11 > 0:01:16Oh, I hear a beep, I see a flash, I wonder what they're going to ask.
0:01:16 > 0:01:17BEEPING
0:01:19 > 0:01:21ALL: Hi, Nina!
0:01:21 > 0:01:23Hello!
0:01:23 > 0:01:28We've got a question for you. How does a television work?
0:01:28 > 0:01:31That's a great question! How does a television work?
0:01:31 > 0:01:35Television is a brilliant invention. You just turn it on and
0:01:35 > 0:01:39these pictures and sounds appear as if by magic.
0:01:39 > 0:01:42Why don't you come down to my workshop,
0:01:42 > 0:01:45- and we'll check it out! - ALL: See you soon, Nina, bye!
0:01:45 > 0:01:46Bye!
0:01:46 > 0:01:50I'm going to need some help to answer this one
0:01:50 > 0:01:54and I know just who to ask! OK, Neurons, time to get to work!
0:01:54 > 0:01:58BUZZING AND ELECTRONIC BEEPS
0:02:11 > 0:02:13ALL: Neurons at the ready, Nina!
0:02:13 > 0:02:17Today's question is how does a television work? Which neuron
0:02:17 > 0:02:21do you think will be most useful in helping us find the answer?
0:02:21 > 0:02:25- Me!- Me!- Me!- Me!- Me!
0:02:25 > 0:02:27Will it be...Fabulous Felix?
0:02:27 > 0:02:31I can help so very much, if you need the sense of touch.
0:02:31 > 0:02:35- Will it be...Beautiful Belle? - I send messages to brain from ear.
0:02:35 > 0:02:40- If there's a sound, I'll help you hear.- Will it be...Lovely Luke?
0:02:40 > 0:02:42Looking and seeing, day or night,
0:02:42 > 0:02:47- I'll help you with your sense of sight.- Will it be...Awesome Ollie?
0:02:47 > 0:02:50If it's pongy, or whiffy, but you can't tell,
0:02:50 > 0:02:53- my messages help your sense of smell.- Will it be Baby Bud?
0:02:53 > 0:02:56Sour, salty, bitter or sweet -
0:02:56 > 0:02:59I'm your taste buddy whenever you eat.
0:02:59 > 0:03:00BEEPING
0:03:03 > 0:03:04- It's Luke!- Yes!
0:03:04 > 0:03:10ALL: Go, Luke! Go, Luke! Go, Luke! Go, Luke!
0:03:10 > 0:03:13- Go, Luke! Go, Luke! Go, Luke!- Cool, Nina,
0:03:13 > 0:03:16I'll be looking out to help you.
0:03:16 > 0:03:20Today's question is how does a television work? It's something
0:03:20 > 0:03:24we watch, so Luke will be helping us, but stand by, Neurons,
0:03:24 > 0:03:28I may need help from all of you. I'll get the workshop ready
0:03:28 > 0:03:30before the Inventors arrive.
0:03:30 > 0:03:35Annie, Morgan and Charlotte want to find out all about the television.
0:03:35 > 0:03:40Televisions that are thin, fat, full of funny chat. So today,
0:03:40 > 0:03:45for one day only, Annie, Morgan and Charlotte become...the Inventors!
0:03:48 > 0:03:50Hi, guys!
0:03:50 > 0:03:56- ALL: Hi, Nina!- Lovely to see you. Come on in, welcome to my workshop.
0:03:56 > 0:04:00Your question is how does a television work?
0:04:00 > 0:04:04- Why do you want to know that? - We like watching our favourite
0:04:04 > 0:04:08programmes on the television and we wanted to know how it works.
0:04:08 > 0:04:13To answer your question the first thing to do is watch television
0:04:13 > 0:04:18and get some clues as to how it works. Let's switch it on!
0:04:20 > 0:04:23Ah! Ha-ha!
0:04:23 > 0:04:28Would you look at that? Just press a button and... Hey, presto!
0:04:28 > 0:04:33- All these pictures and colours appear!- And the sounds too, Luke.
0:04:33 > 0:04:37You have to look and listen when you're watching the television.
0:04:37 > 0:04:42We watch lots of programmes on television. How do they get there?
0:04:42 > 0:04:47We need to get inside and have a closer look, so I'll switch off...
0:04:47 > 0:04:51Here we have a television. Taking things apart is my job.
0:04:51 > 0:04:55- It can be dangerous, so don't do this yourself.- That's right!
0:04:55 > 0:05:00Nina's been specially trained to do this. If you open up things
0:05:00 > 0:05:03that use electricity, you could hurt yourself.
0:05:04 > 0:05:06It looks very strange inside.
0:05:06 > 0:05:10How did the cat get onto the television?
0:05:10 > 0:05:14Sometimes the information that makes a programme gets carried
0:05:14 > 0:05:20to the television by an underground cable. But usually it gets carried
0:05:20 > 0:05:22through the air by invisible waves.
0:05:22 > 0:05:27I something's invisible, it means you can't see it.
0:05:27 > 0:05:32That's right, Bud. Let me use my Nina-cam...the information
0:05:32 > 0:05:38is taken by a wire to a television...here!
0:05:38 > 0:05:42The invisible waves carry sounds and still pictures.
0:05:42 > 0:05:47- Do you know what a still picture is? - A photograph?- Right, a still picture
0:05:47 > 0:05:50doesn't move, like a photograph.
0:05:50 > 0:05:54When these invisible waves get picked up by the receiver
0:05:54 > 0:05:57they then get sent to this bit here!
0:05:57 > 0:06:00And that puts the pictures up on the screen!
0:06:00 > 0:06:05Still pictures are usually carried to television by invisible waves.
0:06:05 > 0:06:10I know something else that uses invisible waves. Shall we go and see
0:06:10 > 0:06:12- another invention in action?- Yes!
0:06:12 > 0:06:14Let's go!
0:06:20 > 0:06:24Off they go! I really enjoy seeing the big inventions.
0:06:24 > 0:06:29What else, other than a television, use invisible waves?
0:06:29 > 0:06:34- We'll find out soon, I think we've arrived!- I've brought you here
0:06:34 > 0:06:40because they build satellites. Do you know what a satellite is?
0:06:40 > 0:06:43- Is it something that goes into space?- Yes, it is!
0:06:43 > 0:06:48Let's go inside and have a close look. Let's go!
0:06:48 > 0:06:51Let me just open this really big door...
0:06:54 > 0:07:00Hmm! It looks very strange - metal here, metal there -
0:07:00 > 0:07:03- maybe it's a special type of plane. - Or a robot!
0:07:03 > 0:07:05They're made of metal, too!
0:07:05 > 0:07:11OK, guys, come round here. This is model of a satellite,
0:07:11 > 0:07:14but a real one is actually four times bigger.
0:07:14 > 0:07:19And this metal room is where they test real satellites.
0:07:19 > 0:07:24We have to wear these suits because it's very important that no dust
0:07:24 > 0:07:28gets inside a satellite, as it won't work as well.
0:07:28 > 0:07:32- What does a satellite do?- It goes into space, travels round the earth,
0:07:32 > 0:07:37collects information and takes pictures to send back to us.
0:07:37 > 0:07:42That information is sent using the same invisible waves that send
0:07:42 > 0:07:47- pictures to your television.- What kind of pictures do they take?- Oh,
0:07:47 > 0:07:48I have one here.
0:07:48 > 0:07:53Do you recognise anywhere in this picture?
0:07:53 > 0:07:57- Is that your Science Centre? - Well done! It is. This is a picture
0:07:57 > 0:08:02taken from space. So we know that invisible waves carry information,
0:08:02 > 0:08:06and what is carried to a television is lots of still pictures,
0:08:06 > 0:08:10like photographs. But we still don't know how a television
0:08:10 > 0:08:17turns still pictures into moving pictures. Back to the workshop!
0:08:19 > 0:08:24We've been on a really long journey to find out about the television,
0:08:24 > 0:08:29- but who actually invented it? - Listen up, I can tell you that!
0:08:30 > 0:08:34It's probably my favourite invention ever.
0:08:34 > 0:08:39Not everyone agrees who actually invented the television,
0:08:39 > 0:08:43so I'm going to tell you about one inventor called John Logie Baird.
0:08:43 > 0:08:48For years he tried to work out a way to transmit pictures
0:08:48 > 0:08:50and then one day...
0:08:50 > 0:08:53he did it! Everyone was amazed
0:08:53 > 0:08:57at this invention and we still love it today.
0:09:01 > 0:09:05Your question is, how does a television work? So far we've
0:09:05 > 0:09:10found out that invisible waves carry information long distances.
0:09:10 > 0:09:13They also carry still pictures to a television
0:09:13 > 0:09:15which puts them on the screen.
0:09:15 > 0:09:19We still don't know how these pictures move,
0:09:19 > 0:09:21so to find out, we need to get inventing!
0:09:21 > 0:09:25So today we're going to make our very own flicker book!
0:09:25 > 0:09:29First thing to do is cut out these special still pictures.
0:09:29 > 0:09:31So take your scissors...
0:09:31 > 0:09:35Let's cut out number one first.
0:09:45 > 0:09:49Then cut out number two, and we'll do that all the way
0:09:49 > 0:09:51until we've cut them all out.
0:09:55 > 0:10:01Now do be careful and watch those fingers! Scissors can be very sharp.
0:10:03 > 0:10:05There we go!
0:10:05 > 0:10:09Fantastic job, well done. We now have our Nina pictures
0:10:09 > 0:10:14with number one at the top. Next we take our sticky note pad,
0:10:14 > 0:10:19let's find the middle of our note pad, doesn't have to be exact.
0:10:19 > 0:10:25Take number one Nina, and let's pop just a little bit of glue
0:10:25 > 0:10:30onto the note pad and stick number one Nina in.
0:10:30 > 0:10:34Let's put it in the middle and quite close to the edge.
0:10:34 > 0:10:41Excellent! Then lift that page and we're going to put number two
0:10:41 > 0:10:46in the next page, exactly where you stuck it before.
0:10:46 > 0:10:50Do the same on the next page and just put a little dab of glue,
0:10:50 > 0:10:54just a little - it doesn't need much to stick it.
0:10:58 > 0:11:01The last one.
0:11:01 > 0:11:07Fantastic, guys, well done! Now watch really closely
0:11:07 > 0:11:10as I flick the pages really quickly, OK?
0:11:13 > 0:11:17- You're moving!- When I flick the book really quickly...
0:11:19 > 0:11:23- ..it looks like I'm moving! - Hey, look at Nina!
0:11:23 > 0:11:26I've never seen that experiment before.
0:11:26 > 0:11:29Why don't you have a go?
0:11:32 > 0:11:36Each picture is a little different from the one before it
0:11:36 > 0:11:41and the one after it. When you see still pictures one after another
0:11:41 > 0:11:45really quickly, our eyes blend them together so it looks like
0:11:45 > 0:11:50the picture's moving! It's the same with the television.
0:11:52 > 0:11:57Your question was how does a television work? We've answered it.
0:11:57 > 0:12:01We found out that a television has a receiver and screen.
0:12:01 > 0:12:05The receiver gets still pictures sent to it by invisible waves.
0:12:05 > 0:12:10These pictures get put on the screen one after another very quickly,
0:12:10 > 0:12:15and our eyes turn these still pictures into moving pictures.
0:12:15 > 0:12:18That's how a television works. Thanks for your question.
0:12:18 > 0:12:22- ALL: Thanks, Nina. Bye!- Bye!
0:12:26 > 0:12:30If you want to make today's invention, go to the Nina section
0:12:30 > 0:12:34on the CBeebies website to get all the instructions you need.
0:12:34 > 0:12:38Or you may have other ideas of what you want to invent.
0:12:38 > 0:12:41- Bikes!- Trains!- Binoculars!
0:12:41 > 0:12:45- Televisions!- Speakers!- Cars!
0:12:45 > 0:12:47# We all love inventing
0:12:47 > 0:12:49# Whoa-o-o-o
0:12:49 > 0:12:51# Love inventing
0:12:51 > 0:12:53# We all love inventing
0:12:53 > 0:12:56# Why don't you try it, too?
0:12:56 > 0:12:59# Inventions make life easier
0:12:59 > 0:13:01# And help us get things done
0:13:01 > 0:13:03# Go inventing
0:13:03 > 0:13:05# I always like to take a look
0:13:05 > 0:13:07# At how they work and run
0:13:07 > 0:13:09# Go inventing
0:13:09 > 0:13:11# We all love inventing
0:13:11 > 0:13:15# Whoa-o-o-o, go inventing
0:13:15 > 0:13:17# We all love inventing
0:13:17 > 0:13:20# Why don't you try it, too? #
0:13:20 > 0:13:23I've had a brilliant day.
0:13:23 > 0:13:27Especially all those pictures and sounds. Ace!
0:13:27 > 0:13:29It's been a marvellous day.
0:13:29 > 0:13:34Who would have thought a television had so much hidden inside it?
0:13:34 > 0:13:38I've had a fabby day, but the satellite was the best,
0:13:38 > 0:13:43cos it came all the way from outer space!
0:13:43 > 0:13:47I really enjoyed myself today. I liked it when everyone made
0:13:47 > 0:13:52the flicker book - cutting, sticking and flicking was fun!
0:13:52 > 0:13:58It's been such a great day, it's amazing how our eyes can turn
0:13:58 > 0:14:01still pictures into moving ones.
0:14:01 > 0:14:05Our day's been bursting with inventions. Hope you enjoyed it.
0:14:05 > 0:14:07See you again soon. Bye!
0:14:07 > 0:14:08ALL: Bye!
0:14:08 > 0:14:13- # Nina and the Neurons - Go inventing! #