Hovercraft

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0:00:05 > 0:00:08# If you've got a question and you don't know where to go

0:00:08 > 0:00:11# Ask Nina for some help Cos she's got a science show

0:00:11 > 0:00:14# She makes sense of her senses While helping all her fans

0:00:14 > 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 > 0:00:47- # Eyes.- Eyes! - Ears.- Ears!- Nose.- Nose!

0:00:47 > 0:00:50# Nina and the Neurons find out what you need to know

0:00:50 > 0:00:53# Nina and the Neurons find out what you need to know

0:00:53 > 0:00:55# Oh, yeah! #

0:00:55 > 0:00:59Oh, the orange car's in the lead!

0:00:59 > 0:01:01- Who's going to win? Oh, hello! - BEEPING

0:01:01 > 0:01:06- I'm...I'm just drying my hair! - BEEPING

0:01:06 > 0:01:09I hear a beep, I see a flash, I wonder what they're going to ask.

0:01:09 > 0:01:13BEEPING

0:01:13 > 0:01:19- Hi, Nina!- Hi, guys. - We've got a question for you.

0:01:19 > 0:01:24Is there a machine that can move on land and water?

0:01:24 > 0:01:27Is there a machine that can move on land and water?

0:01:27 > 0:01:32Engineering is all about solving problems like this.

0:01:32 > 0:01:34Why don't you come down and we'll investigate.

0:01:34 > 0:01:38- See you soon, Nina, bye.- Bye.

0:01:38 > 0:01:43Well, I need help to answer this and I know just who to ask.

0:01:43 > 0:01:46OK, Neurons, time to get to work.

0:02:01 > 0:02:05- ALL: Neurons at the ready, Nina. - Today's question is,

0:02:05 > 0:02:08is there a machine that can move on land and water?

0:02:08 > 0:02:12Which Neuron will be most useful to help find the answer?

0:02:12 > 0:02:15ALL: Me! Me! Me! Oh, me!

0:02:15 > 0:02:18Will it be fabulous Felix?

0:02:18 > 0:02:22I can help so very much if you need the sense of touch.

0:02:22 > 0:02:24Will it be beautiful Belle?

0:02:24 > 0:02:29I send messages to brain from ear. If there's a sound, I'll help you hear.

0:02:29 > 0:02:30Will it be lovely Luke?

0:02:30 > 0:02:33For looking and seeing, day or night,

0:02:33 > 0:02:35I'll help you with your sense of sight.

0:02:35 > 0:02:37Will it be awesome Ollie?

0:02:37 > 0:02:40If it's pongy or whiffy but you can't tell,

0:02:40 > 0:02:44- my messages help your sense of smell. - Or will it be baby Bud?

0:02:44 > 0:02:49Sour, salty, bitter or sweet, I'm your taste buddy whenever you eat!

0:02:52 > 0:02:54It's Belle!

0:02:54 > 0:03:01ALL: Go, Belle! Go, Belle! Go, Belle! Go, Belle!

0:03:01 > 0:03:05Brilliant! I'm all ears, Nina.

0:03:05 > 0:03:10So, is there a machine that can move on land and water?

0:03:10 > 0:03:15As machines are noisy, Belle, our hearing Neuron, will be helping us.

0:03:15 > 0:03:18I need to get the workshop ready before the engineers arrive!

0:03:20 > 0:03:28Felix loves lions, Sha'la likes jelly and Gabriella loves flowers.

0:03:28 > 0:03:34- Cars drive on roads.- Boats sail on water.- I want to do both.

0:03:34 > 0:03:39So, for one day, they become the engineers!

0:03:43 > 0:03:46- Hi, guys!- Hi, Nina!

0:03:46 > 0:03:49Welcome and thanks for your great question.

0:03:49 > 0:03:52Is there a machine that can move on land and water?

0:03:52 > 0:03:56To find out the answer, let's use our senses!

0:03:56 > 0:04:00ALL: Whoop! Whoop! A senses experiment! We're ready, Nina!

0:04:00 > 0:04:04First, let's see how things move.

0:04:04 > 0:04:08Let's try pushing a wooden block across these mats. Go!

0:04:11 > 0:04:15Oh, oh... Oh! Ha-ha!

0:04:15 > 0:04:21- OK, engineers, stop pushing. What was that like?- That was hard.

0:04:21 > 0:04:26Yes, there must be an easier way.

0:04:26 > 0:04:30Let's try turning the blocks onto their sides.

0:04:30 > 0:04:34And we'll have another go.

0:04:38 > 0:04:40That feels much easier, Nina.

0:04:40 > 0:04:42It is much easier.

0:04:42 > 0:04:46When two things are touching, they rub against each other.

0:04:46 > 0:04:49The more they are rubbing, the harder it is to move.

0:04:49 > 0:04:54Like this wooden block, the more of it that was rubbing against the mat,

0:04:54 > 0:04:57the harder it was to move.

0:04:57 > 0:05:02So, the less they touch, the easier it is to move.

0:05:02 > 0:05:06I wonder, if we could lift things up into the air a little,

0:05:06 > 0:05:12they wouldn't rub at all. That would make it even easier to move.

0:05:12 > 0:05:15Come and have a look at this.

0:05:15 > 0:05:19That looks like fun, Nina, what is it?

0:05:19 > 0:05:23This is called an air-hockey table.

0:05:23 > 0:05:27We play games on it using these.

0:05:27 > 0:05:31This is a disc and we push it around the table using this.

0:05:31 > 0:05:35Why don't you try pushing the discs across the table?

0:05:35 > 0:05:41There's a disc, let me get another one. Go! Woo!

0:05:41 > 0:05:48- Was it easier or harder than pushing a block across a mat.- Much easier.

0:05:48 > 0:05:51Yes, but what's so special about this table?

0:05:51 > 0:05:57- To find out, let's put our hands on top of the table.- Woo!

0:05:57 > 0:06:00I can feel something moving, Nina.

0:06:00 > 0:06:04That's right, Felix, this table blows air up from little holes

0:06:04 > 0:06:09across the top. That's why it's called an air-hockey table.

0:06:09 > 0:06:12By blowing air all the time, the table lifts up these discs.

0:06:12 > 0:06:15Instead of rubbing against the table,

0:06:15 > 0:06:20they stay up in the air and that makes it easy for them to move.

0:06:20 > 0:06:25We've discovered the more something rubs or touches the ground,

0:06:25 > 0:06:29the harder it is to move, but if you lift it up into the air,

0:06:29 > 0:06:31moving it becomes much easier.

0:06:31 > 0:06:34I wonder if this could help us find a machine

0:06:34 > 0:06:36that could move on land and water?

0:06:36 > 0:06:40I know somewhere that's wet and dry where we could find out more.

0:06:43 > 0:06:48- Where do you think we're going today? - It's somewhere dry and wet.

0:06:48 > 0:06:53Maybe it's a swimming pool, that's dry and wet.

0:06:53 > 0:06:57We'll soon find out! We've arrived!

0:06:57 > 0:07:01You asked if there's a machine that can move on land and water,

0:07:01 > 0:07:05so I've brought you to the seaside to find out the answer.

0:07:05 > 0:07:11- Mmm, the seaside smells so fresh, Nina!- Yes, it does, Ollie.

0:07:11 > 0:07:14ENGINES WHIR

0:07:21 > 0:07:26- That machine's very noisy! - Yes, Belle, it is noisy!

0:07:26 > 0:07:28In fact, it's a bit too noisy!

0:07:28 > 0:07:32I think we need to go and find a quieter one. Let's go.

0:07:35 > 0:07:38Oh, that's much better!

0:07:38 > 0:07:44- This machine is called a hovercraft. - A what-craft?- A hovercraft, Bud.

0:07:44 > 0:07:47Instead of resting on the ground,

0:07:47 > 0:07:49a hovercraft rests on a cushion of air,

0:07:49 > 0:07:52just like the discs on the air-hockey table.

0:07:52 > 0:07:54Let me show you how it works.

0:07:54 > 0:07:58It has big fans inside which blow air down into the cushion,

0:07:58 > 0:08:02lifting the hovercraft up off the ground.

0:08:02 > 0:08:07It's a special machine which can travel on land and on water.

0:08:07 > 0:08:11We have special permission to have a closer look - let's go!

0:08:13 > 0:08:17Because it gets lifted up by a cushion full of air,

0:08:17 > 0:08:20the hovercraft doesn't get stuck on waves

0:08:20 > 0:08:23and it doesn't rub against the ground.

0:08:23 > 0:08:25It's great for helping people who are stuck on beaches

0:08:25 > 0:08:28and if there's a big flood.

0:08:28 > 0:08:31Now, let's go onboard and have a closer look.

0:08:34 > 0:08:38Oh, it feels like we're inflating!

0:08:52 > 0:08:54Woo!

0:09:05 > 0:09:07Watch out for the boat!

0:09:31 > 0:09:36Oh! That was great fun! Look at the big cushion of air!

0:09:36 > 0:09:41- What are those things in the back, Nina?- They're big fans!

0:09:41 > 0:09:44Let's go back to the workshop and see how they work.

0:09:46 > 0:09:51Hovercraft have big fans in the back which they use to move around.

0:09:51 > 0:09:53Let's see how they work.

0:09:53 > 0:09:57OK, Engineers, you're going to be our fantastic hovercraft pilots.

0:09:57 > 0:10:00You're going to steer this hovercraft.

0:10:00 > 0:10:04Piloting a hovercraft, that sounds exciting!

0:10:04 > 0:10:09These two flaps at the back move the air from this fan

0:10:09 > 0:10:11and can change the direction the hovercraft goes in.

0:10:11 > 0:10:16If you want to go that way, you move the flaps that way,

0:10:16 > 0:10:21if you want to go that way, you move the flaps that way.

0:10:21 > 0:10:25There I am in the hovercraft and I would like to leave land

0:10:25 > 0:10:29and go across the water to visit my friend in the fishing boat.

0:10:29 > 0:10:32- Sha'la will you help me go to the fishing boat?- Yes.

0:10:32 > 0:10:35OK, let's move the flaps into position.

0:10:35 > 0:10:39That's it, give them a little push.

0:10:39 > 0:10:41Lovely and now, I'll turn on the air.

0:10:41 > 0:10:45I can help! I'm good at blowing!

0:10:45 > 0:10:49- Pbbbtttt! Ppppbbbbtt!- Thanks, Bud!

0:10:49 > 0:10:53Here we go!

0:10:55 > 0:10:57Woo!

0:10:57 > 0:11:00ALL LAUGH

0:11:02 > 0:11:04And stop!

0:11:04 > 0:11:07Now, I want to take the fish I've been given to the lighthouse,

0:11:07 > 0:11:10so, Felix, it's your turn.

0:11:10 > 0:11:16Let's straighten up the flaps, are you ready? Here we go!

0:11:16 > 0:11:19Whoa!

0:11:19 > 0:11:22OK!

0:11:22 > 0:11:24Now I'd like to go back to the land,

0:11:24 > 0:11:29so, Gabriella, can you help me move the flaps, they need to go this way.

0:11:31 > 0:11:36That's it. Perfect, OK, here we go.

0:11:36 > 0:11:39Oh! Ooh! Hahaha!

0:11:39 > 0:11:41Oh, hahaha!

0:11:41 > 0:11:44I had a wonderful trip, thank you.

0:11:44 > 0:11:47You guys make brilliant hovercraft pilots.

0:11:47 > 0:11:51# Nina and the Neurons! #

0:11:51 > 0:11:55So, you asked, is there a machine that can move on land and water?

0:11:55 > 0:11:58I think we've answered it.

0:11:58 > 0:12:00We discovered that the less things rub on the ground,

0:12:00 > 0:12:03the easier they are to move.

0:12:03 > 0:12:05We went to see a hovercraft

0:12:05 > 0:12:09which is a special machine which uses air to lift up.

0:12:09 > 0:12:14We also found out that hovercraft move using big fans

0:12:14 > 0:12:18to push themselves forward or whichever way they want to go.

0:12:18 > 0:12:22- I hope that's answered your question.- Thanks, Nina! Bye!

0:12:22 > 0:12:25You're welcome. Bye!

0:12:25 > 0:12:29If you want to know more about the science in engineering around us,

0:12:29 > 0:12:33go to the Nina section on the CBeebies website. Have fun!

0:12:33 > 0:12:35- # Pulling!- Pushing! - Twisting!- Mixing!

0:12:35 > 0:12:37- # Drilling!- Squeezing!- Floating!

0:12:37 > 0:12:42- # Go engineering! - Go engineering!

0:12:42 > 0:12:45# When you need to fly it make it, shape it

0:12:46 > 0:12:51- # Go engineering! - Go engineering!

0:12:51 > 0:12:55- # When you want to build Go engineering!- Engineering!

0:12:55 > 0:13:00# When you've got to solve a problem but you don't know how to do it

0:13:00 > 0:13:05- # It's time to go engineering! - Engineering!

0:13:05 > 0:13:10# When you want to lift it stick it, pop it, bend it

0:13:10 > 0:13:14- # It's time to go engineering! - Engineering!

0:13:14 > 0:13:19- # Go engineering! - Go engineering!

0:13:19 > 0:13:23- # When you need to fly it make it, shape it!- Engineering!

0:13:23 > 0:13:27- # Go engineering! - Go engineering!

0:13:27 > 0:13:32# When you want to build go engineering

0:13:32 > 0:13:35# Go engineering! #

0:13:35 > 0:13:39I've had a brilliant day! Learning about the hovercraft was fun,

0:13:39 > 0:13:41even if it was noisy!

0:13:41 > 0:13:44It's been a marvellous day.

0:13:44 > 0:13:50I loved the floating feeling when the hovercraft lifted into the air.

0:13:50 > 0:13:54It's been such a great day, man!

0:13:54 > 0:13:59Riding a hovercraft around looks so cool.

0:13:59 > 0:14:01Engineers help to build the world around us.

0:14:01 > 0:14:04They make things work and use science to solve problems.

0:14:04 > 0:14:08- See you soon, bye! - ALL: Bye!

0:14:08 > 0:14:12# Nina and the Neurons Go engineering! #