Terrific Scientific Blue Peter

With Easter almost upon us, today's show is going to be EGG-CELLENT.

OK, we've got a guest on the show who is UN-BUNNY-LIEVABLE

And these two go on a ride which is EGG-CELLENT.

-Barney?

-Yeah?

-What's with the puns?

Do you know what? Never mind that. Let's just get CRACKING.

HE LAUGHS

I did one at the end as... What?

SHE SHOUTS

APPLAUSE

I'm clapping myself.

-Barney, we want to know what's with all the puns?

-Camera two.

Well, Radzi, I'm letting you in to a little secret.

You see, I just love a good YOLK. HE LAUGHS

OK. Because Barney is clearly in such a funny mood - we all are

today, actually - we're going to play a game called Hot Cross Puns!

-Nice!

-Lovely.

Well, why don't you try and count as many puns as you can listen

to with your ears and your eyes? And at the end of the show,

we'll tell you how many is the correct answer on Fan Club: Live.

That is a great game. Six, so far, have you been counting?

-So, SHELL we just crack on?

-Oh, dear. That makes it seven.

It's going to be a very long day.

But, coming up on today's show, you'll see what happened when I went

down to the farm to basically just cuddle some little baby lambs.

It was the best day of my entire life.

BLEATING Aw! Did you hear that?

-Yes, I did.

-It sounds like when two sheep were in a field...

BOTH: Yeah?

One went, "Baa," the other one said, "Oh, I was going to say that."

-Ha-ha, that's funny! I do the comedy on this show.

-Oh, I was going to...

He was going for a high five!

I left you hanging! Sorry about that.

I wouldn't leave JP Cooper hanging, that's for sure.

He's performing later on in the show, it's September Song,

it's beautiful, stay tuned for that, it's going to be EGGS-TRA special.

I've got the giggles again.

But, first, let's see what happened when Blue Peter put science

to the test.

-Did they do it by the book?

-Oh, no.

We are in a top-secret facility because I'm taking on

a very special challenge.

We're putting the laws of physics to the test. We're going to be

taking on one of its most famous forces to push science to the limit.

This is Mission Friction.

This year, the BBC launched Terrific Scientific, which is all about

getting us excited by science.

We wanted to get involved in the biggest way possible.

So, I called upon science expert Greg Foot to help us test

the powers of friction.

Greg, I'm so glad you're here to help out.

Firstly, please tell me - what exactly is friction?

Right, so whenever you take two objects and they touch or they

-rub together, you get a force of friction between them.

-OK.

-Try this.

-Rub your hands together.

-Yeah?

-What do you feel?

-They're getting hot.

-Yeah, exactly.

So, you're having to put in energy to overcome that friction and

some of that energy is getting transferred into heat which

you can feel.

So, is friction important?

Yeah, like, so important. Right now, if there was

-no friction, we would be sliding over all over the place.

-Really?

Yeah, you need that friction there to stay stable.

-OK, so how do we actually test friction?

-I thought you'd never ask.

SHE LAUGHS

-What exactly is this?

-I've wanted to do this for ages.

This is the recreation of a very famous experiment that takes

two books and then it interleaves the pages together.

You take the bottom page from this book then you put the bottom

page from this book on top of it, and then a page

from this and a page from this.

It's kind of wrapping the pages on top of each other,

interleaving them, and you're left with that.

-They lock together.

-I can't imagine how many hours that takes.

Oh, so long!

For this test, we using two chunky books, and the rubber band is there

purely to keep the book covers from flopping about.

-I want to show you something.

-OK.

-Start leaning back.

-Yeah?

-Yeah just... That's it. No, more, give it...

-Really?

Trust me, trust the science, come on.

-OK, I'm going to go for it. Full body weight.

-Come on!

That's my whole body weight!

'Please do not try this at home. Greg is a book-pulling expert.'

-I'm pulling really hard and nothing is happening!

-Exactly!

You must have glued these together.

I haven't, trust me, I have not glued them.

It is just friction,

so everywhere that pages are touching, you get friction

between the pages and, think,

there are hundreds and hundreds of pages, lots and lots of surface

area, so much friction that

it's going to take a massive force to pull it apart.

-Yeah, but the question is, how massive?

-Ha-ha!

Well, we need something quite a lot stronger than us, that's for sure.

Oh!

How about two vans which will drive in opposite directions to try

and pull the books apart?

And what I've done is I've put in THIS thing -

this is called a load cell.

What this is going to do is tell us the maximum amount of force

that these vans are pulling on

either side of this bad-boy book rig.

What's going to happen? Is it going to rip, is it going to survive?

There's only one way to find out.

-OK, engines on.

-ENGINES REV

-Van A, are you ready?

-Van A is ready.

-Van B, ready?

-Van B ready.

-OK, ready?

-Yeah, so, ready.

-Here we go.

Three, two, one, pull!

This is proper... This is van tug-of-war.

Oh, my God!

-But the book is absolutely fine.

-Oh!

Look at that!

Try harder!

Come on, Van B!

VANS SCREECH

-It's not budging.

-It's not budging.

Not even a page out of place.

Science is working, guys.

That's unbelievable.

-MAN:

-She is smoking!

-Oh! Let's go in, are we good?

-Yeah.

-Going in, guys.

-OK.

I can't believe this didn't break.

1,167 kilograms.

-So, what does that mean?

-That...

-is like hanging 18 adults off this book rig.

-What?

-I told you, I told you.

-I don't understand how this is possible.

-There's so much friction. But, you know what?

-What?

-This is Blue Peter.

I think we can take this bigger.

OK. What do you mean?

To be honest, you really do not want to know.

What's going to happen? If you want to find out,

make sure you're watching part two of my Terrific Scientific challenge.

Now, though, it's time for

the beak badge wall, where we give you free-range

to be creative. Olivia has got in touch and has sent us these badges.

They're amazing. They're Blue Peter badges

but they've got our faces on them.

How good is that? I love it. I've got blond hair and big boots.

Lindsey's looks amazing, Radzi's looks amazing.

I'm wearing little dungarees!

Even Shelley has got her own Blue Peter badge.

Look at that up there. It's amazing.

Olivia, thank you so much, you're a genius.

Now, Easter, you may well have noticed, is just around

the corner, so feast your eyes on what Grace has sent us.

This fantastic wreath, lots of different materials,

a flower to boot.

Well done, Grace, that's a blue badge coming your way, but,

Dylan on the other hand, he's made a very special Easter egg.

-Lindsey, can you do the honours?

-Yeah, sure. Ready?

-Let's see who's hiding inside?

-Happy Easter!

-There we are, well done, Dylan.

-Wahey!

-That's got you a silver badge, my friend.

-Now, check this out,

this is amazing. It's from Lucy and Liam,

it's a joint effort, and they've made a little chick-rabbit hutch.

We absolutely adore this.

Look at all the effort that's gone into that. We think it's incredible.

-Very cool.

-A badge is on its way to both of you and we just want to say

thank you so much for all the brilliant post that you send us.

Keep sending it in because it's the Easter holidays and your

badge can get you into over 200 attractions across the UK...

-HARMONISING: # All for free! #

-Yes!

-That felt good.

-Singers over here as well, that was beautiful.

Thank you. Check the website for all the details.

Thousands of you get in touch with us every single week,

both with post via the big badge wall, as well as via our website.

-But, there can only be one fan of the month. Radzi...

-Do the dance!

Yeah!

So, even though they just joined in January,

this person is amazing at leaving comments on the BP website,

they do the puzzle marathons, the anagrams, they get

-involved, they're amazing.

-They've been telling lots of jokes,

they've been getting involved with the caption competitions and

they've been going out of their way to make new friends.

I got no idea what that dance is, it's like a really slow happy dance.

Without further ado, can we have a drumroll, please?

The fan of the month in the month of April is...

Beige Mini Butterfly!

-Well done.

-CHEERING

Congratulations, you'll know when that arrives because

the envelope will be egg-shaped.

If that's got you into the mood for Easter,

make sure you head online to the Blue Peter website.

Lindsey and I played an EGGS-TRA special game where we had

to guess what was inside Easter eggs.

Some of the ingredients were awful, really awful, some of them

were brilliant. Make sure you're watching - it's really fun.

-Some of them were V bad, weren't they?

-You had a really V bad one.

Don't say it.

Now, spring has officially sprung, so I thought it was time

to get down to the farm and meet some adorable little baby animals.

Do you know what, Linds? You're always POACHING the best shows.

Stop with the puns. Run the VT. Stop it.

16 million lambs are born in the UK every single year.

That's almost twice the population of London.

And that's brilliant, because I love lambs. And to prove it...

BLEATING

My name is Lindsey Russell, I'm 22...

That was my Blue Peter audition and I'm holding

a baby sheep because I've always wanted to have a go at lambing.

But, today, I might actually get to fulfil

a lifelong dream and deliver a baby lamb.

Can you tell I'm mega excited? And I know just the person to help me.

Lambing season is the time of year in which female sheep, called

ewes, give birth to their babies.

BLEATING

And, sometimes, they need a helping hand.

So, I've come to this farm in Cheshire to meet Farmer Robert,

a lambing legend, to find out more.

Lambing is a whole process.

It starts back in November and finishes in April, when the

-ewes give birth to the lambs.

-And during that process,

does anything happen in between, or do you just leave them to it?

They're just out to graze and then they're scanned in January

to see how many lambs are in each ewe.

So, it turns out, looking after pregnant ewes is hi-tech.

Each sheep is scanned with an ultrasound to see how many

lambs they're going to have.

So, is that kind of what human mum would have if she was having a baby?

Yeah. Pretty much. It's all for nutrients to see...

The ones with more lambs need more nutrients than the ones with one.

Well, listen, it's Blue Peter and it's lambing,

so I want to get mega hands-on. Can I help with some of the scanning?

Yeah, I'll send you off to James now, who is scanning, and catch up

-with you later on.

-Amazing. I can't wait for this.

I'm not going to rock up in just any old gear - I need to be prepared.

James, how are you doing?

I heard you needed some medical assistance, and I'm here.

Lindsey, this is a farm, you look ridiculous. Go and get changed.

'All right, James. Only making an effort.'

So what can you see on the screen today?

I'm just here now to check that everything is healthy.

OK, so she should just be having one, so let's have a little look.

-So, I can see the outline of the body there.

-Oh, yeah.

And then, just at the bottom there,

with the little bit that's twitching, that's his heartbeat.

Oh, is it? And there's just one heartbeat in there?

-There's just one.

-OK.

-So, she is all done.

I can let her go and you can go and catch up with Robert.

-Brilliant, thank you so much, James. Good luck.

-OK.

Before I get to have a go at delivering my own lamb,

Robert wants to show me how it's done.

We're just going to have a feel,

to see where the next one's up to, just for peace of mind.

OK, I'll follow you.

The key to a good delivery is only helping Mum when she needs it.

-SHE GASPS

-This one's...

-I can see a leg!

-Is that a leg?

-Yeah.

-Oh, my goodness.

OK, this is happening.

'Once you can see the lamb's feet,

'they sometimes need a very gentle pull

'until you see a head.'

Oh, my goodness! Oh, my goodness, I can see its head!

Now we've popped the legs out, she's pushing herself.

-OK. She's pushing?

-Yeah.

-Well done.

'A bit more pulling and...'

Oh, it opened its little eyes.

Oh, my goodness!

'So there we have it, a lovely new lamb. Easy, right?

'Well, I'm about to find out.

'Because, as we're in the barn,

'we get the call that one of the ewes outside

'has already had one of her twins, and I need to deliver the second.

'I'm finally going to get the chance to make one of my dreams come true.'

-SHE GASPS

-Oh, my gosh, that's its head!

-Yeah. Go on, keep pulling.

-Oh, my gosh.

-Pull round there.

-Oh, my gosh.

-Oh, my gosh. Do I just keep...?

-Yeah, keep going.

-Is this...?

-Now you need to clear all the...

-all the gunge from its nose.

-Oh, my goodness!

..and its mouth, so it can keep breathing.

-That's it.

-Oh, mate.

Welcome to the world!

I feel like crying!

Here you go, Mum.

-Is he all right?

-Yeah.

Oh, my goodness.

Oh, wow.

'Being here to help bring this little guy into the world

'has been a real privilege...'

LAMB BLEATS

'..and a true once-in-a-lifetime experience.'

I've got to say, I've wanted to do this for such a long time,

and it is even better than I imagined.

I cannot believe what's happened today. It's been awesome.

And I've made little friend!

MUSIC: September Song by JP Cooper

Now, unless you've been living under a mossy stone

for the past few months, you will have heard this song.

It's amazing, beautifully sung, beautifully written.

It's called September Song,

and the man behind it is right here in the studio, it's JP Cooper!

CHEERING AND APPLAUSE

-How you doing, mate?

-JP. Keep it real, bro.

-We've never done that before.

-Yeah.

We just tried something to look cool. That's my fault entirely.

Let's start by talking about the Blue Peter badge. What a moment.

Amazing, yeah. It's taken me a few years to get it, but...

-finally.

-You have to earn it, that's the point of you being here.

-I've been working so hard, so...

-Mate, we've seen.

-I mean, last year, we got Perfect Strangers, that went platinum.

-Yeah.

September Song has been viewed by over 21 million people -

that's in quite a short space of time as well.

-It's gone really well for you, hasn't it?

-It's amazing, yeah.

Can't quite get them numbers in my little head,

but, yeah, it's been an incredible year.

I suppose it's one of those times when the years can absolutely fly by

if you don't grab hold of them and take note of what's happening.

-Luckily, you've got a film crew following you around.

-Yeah.

We have a clip here, which is kind of one of your video updates,

where you tell people what you're up to.

Talk us through what we can see here.

So the song in the background is actually my next single,

it's a song called Passport Home.

But we'd just been out in New York,

and, as you can see, it was rather wet.

But we were out there doing a few shows, meeting a few people.

Yeah, it's a bit of a taste of what the rest of the year

-will be like for me.

-It's beautifully done.

-It will be quite a year.

-Amazing.

A lot of people are enjoying your music at the moment.

That in itself must feel amazing. As a songwriter, you know,

all you want is people to listen to your music and like it.

But you've got a huge amount of people liking your stuff.

It's finally getting there.

I spent a lot of years playing in front of small amounts of people,

and to go out and see the crowds growing, yeah, it's mind-blowing.

That's happening this year.

So from small crowds to big crowds - you're touring, aren't you?

Yeah, we'll be out and about throughout the summer,

a lot of festivals. I've got my own tour happening.

-So, yeah, very excited.

-Mate, I'm excited that you're here.

Can't wait to hear you later.

So September Song, with a piano and a vocal.

Does it get much better than that?

-We'll see.

-Mate, I love it.

Stay tuned for JP Cooper a bit later in the show.

I crept into your shot then, let's do it on here.

JP Cooper's coming up later.

Radzi, Lindsey.

Now it's time to see what happened

for the next part of my amazing challenge,

-all in the name of science.

-Hey!

-What are you doing?

-I want to play as well.

-So we've seen that our two books can withstand a van tug-of-war.

-Yes.

But this is Blue Peter. How can we make this more extreme, Greg?

I've got a plan.

-You've seen how strong that friction can be, yeah?

-Mm-hm.

-Do you trust it?

-Yeah, I think so.

No, no, no. I mean, do you REALLY trust it?

-You're starting to worry me.

-Come on, then.

(What's he doing?)

'Greg has a super-sized experiment that will really test these books.

'And it's all going to take place at the home of Blue Peter,

'at Media City in Salford.'

-So, Greg, we've built our own mini Media City here.

-Yeah.

Why?

My plan is that I want to dangle you underneath those interweaved books,

attach the other end to a zip wire...

OK? So this is you here.

..and then send you 235 metres down a zip wire,

all the way down into the Piazza,

dangling using nothing but friction.

Is this a joke? Are you joking?

No!

I actually can't get my head around that.

This is a proper, proper Blue Peter challenge.

It doesn't get more extreme than this.

So I'm going to zip wire 235 metres,

and the only thing holding my weight will be two books.

Right, so what's the plan? What's the best way to make this safe?

Whilst I get my head around that,

Greg works with our technical team to make sure everything is safe.

'And, before we do this for real,

'he wants to test the book rig with my weight.'

-Uh-oh! Here we go.

-GREG LAUGHS

This is it, moment of truth.

-Put this on first.

-Thank you.

-OK. I'm scared.

-Yeah?

OK, so this is how this is going to work, OK?

This red line is directly attached to the bottom of the books.

So you are going to be attached to this.

OK, so, if the books rip, OK,

this black line will hold you.

-How are you feeling?

-How do you think I'm feeling? I feel sick!

-GREG LAUGHS

-I don't want to do it.

-Do you want to do it?

-Trust the science, trust the science.

-Oh.

-OK, guys, let's take it up a bit.

-For real?

Oh!

GREG LAUGHS

-It's so fast.

-That's fast!

LINDSEY SCREAMS

I'm going so fast!

Bye.

GREG LAUGHS See you!

I'm so scared.

Just don't look down.

Do you know what? I'd actually rather look down than up,

because up means looking at two books holding my weight.

-Get me down!

-All right, let's bring her down.

-OK.

-Oh, oh, oh!

-Oh!

-All right, hold it.

My feet touching the floor was a great feeling then.

That, I cannot wrap my head around, the fact that I was just hanging

from up there with two books holding my weight.

-That doesn't make sense.

-There's so much friction in here.

So, how do you feel? Are you ready for the big event?

Well, yeah, I guess so, bring it on.

(Help!)

So, I may have hung from the books indoors

but going down a zip wire at over 25mph will be very different.

This challenge is so big, we need another presenter.

Someone with nerves of steel and a matching suit.

We need Radzi!

So, Lindsey and Radzi are just on the way to the crane.

We've got an amazing audience here. And over there is a crane.

That crane stands 35 metres high.

The zip wire is 235 metres long.

They're going to be stopped here,

and I'm going to meet them at the finish line.

But this is what they are hanging from.

And I wanted to prove to you that there is no glue in this at all.

So, it is just the books

with each page overlapped on top of the one below.

No glue at all. We are putting our faith and our trust in the friction.

Ah! Let's do this!

As we get into position 35 metres up,

it's all become sickeningly real.

I didn't think it was that high.

And now that we're up here looking down to where I need to go,

-oh, my tummy just went.

-That's a long way!

-My tummy just went.

I feel a bit sick. I'm not going to look for...

I'm just going to look this way.

-I'm...

-Step over here, come on.

-No, I don't...

Come on, it's not as bad as you're making out, you know that.

-Are you ready to go?

-No.

-You look ready to me.

Oh!

-Go on, Linds!

-No, no, no, no, I feel really scared. Do I... What...

I'll keep my arm here a minute. So you come and shuffle to my arm.

Ugh. I've just looked over the edge.

I'm sorry, what are we doing?

Why are we trusting a book to get me to the other... Ugh.

Ugh, I've just looked over again.

-Zip line is ready.

-Here we go, here we go, here we go.

Five.

CHILDREN: Four.

-Three.

-Two.

One...go!

LINDSEY SCREAMS

Just the friction between those pages!

I'm going so fast!

LINDSEY SQUEALS

'I cannot believe that worked.'

-How was it, Linds?

-I'm crying!

Get me off, get me off!

-It worked!

-Mate, that was amazing.

You know what? The speed really picked up.

About halfway through, that went from being fine

to actually, "How am I going to stop?"

The whole of world's like, "Come on, science, come on, friction!"

Science did it. The question is, is science going to hold Radzi?

You know what? Radzi's OK with heights. That won't be his problem.

I wasn't nervous at all watching Lindsey.

But now I know that I'm using the same books that she used,

and the weather's getting worse, and it's raining...

Well, I think what normally happens when paper gets wet,

it gets all soggy and mushy.

Yeah, and it tears easily.

Yep. I don't think it's going to be able to take

as much load on it as soon as it gets wet.

Don't say that, Greg. Come on. Come on, Radz. I think he's near.

I'm going to do it.

Wish me luck.

So, will two soggy books hold Radzi's weight for 235 metres

at speeds of over 25mph? Cue the countdown.

-Five.

-CHILDREN: Four.

-Three.

-Two, one.

Woo!

RADZI SHOUTS

We are flying! Woo!

RADZI WHOOPS ECSTATICALLY

They're holding. These books work!

THEY ALL SHOUT

Hi, mate.

Hey! Greg, you're right, it works.

Science worked!

Thank you, books.

Unbelievable.

Even with the rain, even with you doing it first, it works.

I told you, there is so much friction between all those pages.

-Yes!

-It is... That is my kind of science.

-Greg, thank you so much for keeping us safe.

-You're very welcome.

-Thank you to all the team.

-Yeah.

I guess that's what I call Terrific Scientific.

-Best day ever.

-Woo!

-So fast.

If you want to see even more of me just screaming

and having the time of my life,

then head to the BP website,

because there's actual footage from my head cam. It's very funny.

And, while you're there,

it's the Easter hols, so there's some experiments

you can actually check out as part of Terrific Scientific DIY.

-It's very fun.

-Well, that's it for this week's show.

Next week you can find out who won our London 2017 mascot competition.

Three words - thing of dreams!

I went to WrestleMania, actually WrestleMania. I went there.

You're going to see it. In fact, I'm so excited, watch this now!

WrestleMania!

-Woo!

-Woo!

Woo!

We're going to watch WrestleMania! Hey!

This has just become the best day ever.

RADZI YODELS

IMITATES YODELLING

Blue Peter badge.

-Yes! Ha.

-Are you all right?

Excitable young man right there.

Now, though, to take us out and finish the show in style,

please welcome JP Cooper with September Song.

See you next week.

CHEERING AND APPLAUSE

PIANO INTRODUCTION

# My love is strong as a lion Soft as the cotton you lie in

# The times we got hot like an iron You and I

# Our hearts had never been broken We were so innocent, darling

# We used to talk till the morning You and I

# We had the mixtape on every weekend

# Had it repeating Had it repeating

# You were my September song Summer lasted too long

# Time moves so slowly When you're only 15

# You were my September song Tell me, where have you gone?

# Do you remember me? We were only 15

# Sometimes I think that I see her face in the strangest of places

# Down on the underground station Passing by

# I get a mild sense of danger

# I feel like my heart couldn't take it

# Cos if we met, we'd be strangers You and I

# Still I play that mixtape every weekend

# I got it repeating Got it repeating

# You were my September song Summer lasted too long

# Time moves so slowly When you're only 15

# You were my September song Tell me, where have you gone?

# Do you remember me? We were only 15

# And I

# I remember the chorus They were singing it for us

# I hear that September song And I'm singing along

# Thinking about you and me Oh, what a melody

# Oh, no

# And as the years go by You will still be mine

# Be my...

# You were my

# You were my September song Summer lasted too long

# Time moves so slowly When you're only 15

# You were my September song Tell me, where have you gone?

# Do you remember me? We were only 15

# And I

# I remember the chorus

# They were singing it for us. #

APPLAUSE AND CHEERING