Canal Locks Nina and the Neurons


Canal Locks

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# If you've got a question and you don't know where to go

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# Ask Nina for some help Cos she's got a science show

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# She makes sense of her senses While helping all her fans

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# By doing her experiments with potions and with bangs

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-# Touch your tongue

-Tongue!

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-# Fingers

-Fingers!

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-# Eyes.

-Eyes!

-Ears.

-Ears!

-Nose.

-Nose!

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# Nina and the Neurons find out what you need to know

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# Nina and the Neurons find out what you need to know

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# Luke, he helps us with our eyes and Felix with our touch

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# Ollie sniffs out smells and scents And Belle, she hears so much

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# Bud is Ollie's brother He helps us with our taste

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# They're Nina's little Neurons And they're coming to your place!

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-# Touch your tongue

-Tongue!

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-# Fingers

-Fingers!

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-# Eyes.

-Eyes!

-Ears.

-Ears!

-Nose.

-Nose!

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# Nina and the Neurons find out what you need to know

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# Nina and the Neurons find out what you need to know

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# Oh yeah! #

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Oh, hello. I am looking forward to my nice cool drink.

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I wonder what will happen to my ice cube boat when I add the water.

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Ooooh... It's floating and lifting up!

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All that pouring is thirsty work.

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Oh, look, the boat has moved down again.

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Beep!

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I hear a beep, I see a flash, I wonder what they're going to ask.

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-BOTH: Hi, Nina.

-Hi, guys.

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We've got a question for you. How do boats get uphill?

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That's a great question. How do boats get uphill?

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Well, it takes some very clever engineering.

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Come down to my workshop to investigate.

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BOTH: See you soon, Nina, bye!

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Bye!

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I'll need help to answer this and I know just who to ask.

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OK, Neurons, time to get to work.

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ALL: Neurons at the ready, Nina.

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OK. Today's question is, how do boats get uphill?

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Which Neuron will be most useful to help find the answer?

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ALL: Me! Me! Me! Oh, me!

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Will it be fabulous Felix?

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I can help so very much if you need the sense of touch.

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Will it be beautiful Belle?

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I send messages to brain from ear. If there's a sound, I'll help you hear.

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Will it be lovely Luke?

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For looking and seeing, day or night,

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I'll help you with your sense of sight.

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Will it be awesome Ollie?

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If it's pongy or whiffy but you can't tell,

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-my messages help your sense of smell.

-Or will it be baby Bud?

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Sour, salty, bitter or sweet, I'm your taste buddy whenever you eat!

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It's Felix!

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ALL: Go Felix, go Felix, go Felix, go Felix!

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Go Felix, go Felix, go Felix!

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Marvellous! A little touch can mean so much, Nina.

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Today was my question is, how do boats get uphill?

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Since boats touch the water when they float,

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Felix, our touch Neuron, will be helping us.

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Stand by, Neurons, I may need help from all of you.

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I need to get the workshop ready before the engineers arrived.

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Rudy loves digging in the garden. Fraser's favourite colour is blue.

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-Cars can drive uphill.

-I can jump uphill!

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Today, Fraser and Rudy become the engineers!

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-Hi, Rudy. Hi, Fraser.

-BOTH: Hi, Nina.

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Welcome to my workshop. Thanks for your great question.

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How do boats get uphill?

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To find out the answer, let's start by using our senses.

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NEURONS: Whoo-hoo, a senses experiment!

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We're ready, Nina.

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Boats can travel on rivers,

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but sometimes we want boats to travel where there isn't a river,

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and that is why engineers invented canals.

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Here is a picture of a canal.

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Here is a picture of a river.

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What is the difference between the canal and the river?

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Spot the difference, sounds like a job for me, Nina.

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-The canal is straight, but the river wiggles.

-Well spotted!

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Rivers make their own way down over

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the hills and over the land in a wiggly line.

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Because engineers made canals, they are much straighter than rivers.

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Canals are a great way to carry people and things

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where they need to go.

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Let's have a look at our own canal over here.

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We will pretend that this long,

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straight piece of plastic is a mini canal.

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Let's have a play with our canal!

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That looks fun! Splish-splosh!

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Well done, engineers, that was great fun.

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A canal is like a road but for boats.

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Just like a road, canals sometimes need to go uphill.

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And here I have a hill.

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Let's see what happens if we lift our canal uphill.

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-Oh! What happened?

-All the water went out.

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Can you try to float the boat up the hill along the water?

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Oooooh...

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Oh! What's the problem?

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-There is no water.

-You are absolutely right.

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The problem is, when we tilt a canal uphill,

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all the water flows away and the boat can't move without any water.

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When engineers built canals,

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they had to think of a way to solve this problem.

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Let's go to a place where there's lots of things called canal locks

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to find out more.

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I wonder where Nina is taking us.

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Nina said we were going to see lots of locks.

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If there are lots of locks, there must be lots of doors.

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We will soon find out, Neurons. Here we are.

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OK, engineers, you asked how boats get uphill.

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I've brought you here to help answer the question. This is a canal.

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Can you see what is over there?

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The canal is going uphill.

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There are lots of steps with water in them.

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It looks like a big watery staircase.

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Those watery steps are called locks.

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I thought locks were for keeping doors shut, Nina.

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Good thinking, Belle. Canal locks have giant doors.

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We open them to let the water through and we close them

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to keep the water in.

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The best way to see how locks work is on a boat.

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Are you ready for a boat trip, engineers?

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BOTH: Yeah!

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-I can get there myself.

-Can you?

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Whew! What a strange feeling. The water is moving below us.

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That's right, Felix. The boat is floating in the water.

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We need to be careful and hold on tight.

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Oh, dear, how are we going to get through those gates?

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That is the lock keeper.

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Thank you, lock keeper! Thank you!

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I'm glad we have made it through this first watery step, engineers.

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How are we going to get this boat uphill?

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Closing the gates behind us stops the water from running downhill.

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Now the lock keeper is going around the gates in front of us.

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Hold on tight, he is opening the bottom of the gates to let

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the water through from the step above.

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Can you feel it?

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We're lifting up!

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Listen to the water, bubbling and splashing!

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I just hope we don't get wet.

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Don't worry, Felix, we're stopped.

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See? We are at the same height as the water front of us now.

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-Yeah!

-We have moved up the hill one step.

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-We have more steps to climb. Are you ready, engineers?

-Yeah!

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Hold on tight, Neurons, I can feel the boat rising.

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The gate is opening again.

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The last gate has opened and we are ready to go.

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-Look how high up we have moved!

-Just look at that!

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I think it is time to go back on dry land.

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That was brilliant!

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That was great fun! And we saw lots of exciting things.

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There were important things we couldn't see.

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Let me show you.

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This is where the water came through.

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It happened under the water so we couldn't see it.

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The gates let the water through and the gates can stop the water.

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Let's go back to my workshop to see how it works.

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Canal locks are how engineers change the water heights

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in the canal so the boats can move uphill step by step.

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To see exactly how it works, we have got a model of the canal locks.

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You can see the watery steps just like in a canal.

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Let's see if we can get this little boat uphill.

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Oh, but there is a gate in the way.

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-What do we need to do?

-Open the gate.

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Yes, we need to open the gate.

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In a real canal, the bottom of the gate opens under the water

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so the water doesn't rush in too quickly.

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We can do the same here by unplugging the gate like this.

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Whoo! Whoo-hoo!

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Brilliant, and now open the gate.

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And, Rudy, can you push the boot through?

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Excellent!

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So our boat is in the first lock, but we want it to go up a step.

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What would happen if I open the gate above it?

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The water would run away.

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That's right, the water would all rush away.

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We need to keep the water in the lock by closing the gate behind us.

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Slip it in there.

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Now we need some water to float the boat up a step,

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so we are going to let it in slowly again.

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Hey, the boat is lifting up!

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And there is only one more thing we need to do to

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-to continue on our journey.

-Open the gate?

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And, Fraser, do you want to push our boat through?

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-Wheee! Yippee!

-Yay! Well done, engineers.

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So your question was, how do boats get uphill?

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I think we have answered it.

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We discovered that just like a road,

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canals sometimes need to go uphill.

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But if you tilt a canal uphill, all the water rushes away.

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Engineers solved this problem by keeping the water

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in steps called locks.

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The boat moves up through each lock one step at a time and,

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when the water is the same level,

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the boat moves forward, so it moves up the steps.

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I hope that has answered your question.

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BOTH: Thanks, Nina. Bye.

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You're welcome. Bye.

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If you want to know more about the science and engineering

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all around us, go to the Nina section on the CBeebies website.

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Have fun!

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-# Pulling.

-Pushing

-Twisting.

-Mixing

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-# Drilling.

-Squeezing.

-Floating

-Go engineering

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# Go engineering!

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# When you need to fly it Make it, shape it

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-# Go engineering

-Go engineering!

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# When you want to build Go engineering

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# Engineering!

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# When you've got to solve a problem but you don't know how to do it

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# It's time to go engineering

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# Engineering!

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# When you want to lift it Stick it, pop it, bend it

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# It's time to go engineering

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# Engineering!

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-# Go engineering

-Go engineering!

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# When you need to fly it Make it, shape it

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# Engineering!

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-# Go engineering

-Go engineering!

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# When you want to build Go engineering

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# Go engineering! #

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It has been a marvellous day.

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I enjoyed feeling the boat lifting up with the water.

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I really enjoyed myself today.

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A great day on the canal, so much to see and smell.

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Oh, I have had a brilliant day,

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hearing all that water splashing through the lock gates.

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Remember, engineers helped to build the world around us.

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They make things work and use science to solve problems.

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See you again soon. Bye!

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Neurons: Bye!

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Subtitles by Red Bee Media Ltd

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