0:00:04 > 0:00:06On today's show, we've got jelly.
0:00:06 > 0:00:07We've got fish.
0:00:07 > 0:00:10And we've got a sprinkle of Blue Peter magic.
0:00:10 > 0:00:12Linds, you're going to love this.
0:00:12 > 0:00:14See!
0:00:14 > 0:00:16Wait, I don't get it.
0:00:16 > 0:00:18Jellyfish!
0:00:34 > 0:00:36- Hello.- Hello, welcome to the show.
0:00:36 > 0:00:39We are so excited and we just can't hide it.
0:00:39 > 0:00:41We've got a fabulously fun-filled show for you today.
0:00:41 > 0:00:44That's right. I visit a massive feat of engineering.
0:00:44 > 0:00:47- Look, this is a gadget on a huge scale.- I want one!
0:00:47 > 0:00:49That's a massive gadget. But these, however,
0:00:49 > 0:00:52are majestically magical creatures of the sea.
0:00:52 > 0:00:54I am talking about jellyfish. Look at them!
0:00:54 > 0:00:57Spot Shelley is a game you like to play. We do too.
0:00:57 > 0:01:00- Here she is. I found her. I win.- No.- OK.
0:01:00 > 0:01:02She's going to be hiding throughout the show.
0:01:02 > 0:01:04You've got to try and spot her. Log on to BP Fanclub Live right now
0:01:04 > 0:01:05and get in touch.
0:01:05 > 0:01:08The first person to find her wins their very own horse called Eric.
0:01:08 > 0:01:09That's not true.
0:01:09 > 0:01:10What is true, though,
0:01:10 > 0:01:13is we've got some fabulous guests in the studio today.
0:01:13 > 0:01:16They're from the Victorian era and from the cast of Hetty Feather!
0:01:16 > 0:01:18CHEERING AND APPLAUSE
0:01:18 > 0:01:20Hugo, Orla, welcome to the show.
0:01:20 > 0:01:22It's not quite Callender Hall,
0:01:22 > 0:01:24but it is posh enough for you to be wearing your Blue Peter badges.
0:01:24 > 0:01:27- You happy about that?- Yeah, very happy.- Welcome to the show.
0:01:27 > 0:01:30It's good to have you here. So Hetty Feather is now in its third series.
0:01:30 > 0:01:32You've recently joined the cast. Tell me about your characters.
0:01:32 > 0:01:34My character's Emily.
0:01:34 > 0:01:36She's the eldest of the Callender children.
0:01:36 > 0:01:39She wants to be a doctor, but obviously it's Victorian society
0:01:39 > 0:01:42so her parents aren't really mad on that idea.
0:01:42 > 0:01:44My mum wanted me to be a doctor. How wrong can you get?
0:01:44 > 0:01:46Let's talk about the new series.
0:01:46 > 0:01:48There's a bit of a cliff-hanger in the last episode.
0:01:48 > 0:01:50It must be amazing to be part of this new story and this new team?
0:01:50 > 0:01:54- Yeah.- We are new characters in it, so a new chapter for Hetty's life,
0:01:54 > 0:01:56so it's very exciting.
0:01:56 > 0:01:59You're already quite busy as far as the story goes.
0:01:59 > 0:02:01Hugo, you play Edwin, who's a botanist,
0:02:01 > 0:02:04but you're not allowed outside. How does that work?
0:02:04 > 0:02:07Well, I'm not allowed outside because it's bad for my health,
0:02:07 > 0:02:11but the way I study plants is I bring them
0:02:11 > 0:02:15into my library which is basically my bedroom, kitchen, everything.
0:02:15 > 0:02:19I sit there every day, all day and I study plants.
0:02:19 > 0:02:21Does Edwin get to go out at any point? Do we know that?
0:02:21 > 0:02:25- Well, you have to wait.- Ah, yes, the "I'm not going to tell you" card.
0:02:25 > 0:02:30- I understand that. Orla, you were kidnapped, but accidentally.- Yes.
0:02:30 > 0:02:32How does that happen and what happens next?
0:02:32 > 0:02:35Well, you're going to have to watch if you want to find that out.
0:02:35 > 0:02:36Neither of you are giving anything away today.
0:02:36 > 0:02:39Hugo, help me out. She's giving me nothing. What's going to happen?
0:02:39 > 0:02:42- No, sorry.- OK, no more questions for now, then.
0:02:42 > 0:02:45- How about we play a game instead? - Yes.- You're going to love this.
0:02:45 > 0:02:48It's called Victorian or Victori-aren't!
0:02:48 > 0:02:49I need to get my costume on for this
0:02:49 > 0:02:52because you can't do a show about the Victorian era
0:02:52 > 0:02:55and not look the part, so if you bear with me just one second...
0:02:55 > 0:02:58I now look like an official Victorian. Hello, how are you?
0:02:58 > 0:03:00Is that how they spoke? I don't know.
0:03:00 > 0:03:03On this board in front of you are ten items.
0:03:03 > 0:03:05These ten items have been invented by very clever people
0:03:05 > 0:03:09but only five of the items were invented during the Victorian era,
0:03:09 > 0:03:13the reign of Queen Victoria, which is 1837-1901.
0:03:13 > 0:03:16So which of these five were invented during that time?
0:03:16 > 0:03:19What you've got to do is make sure that these top five are all
0:03:19 > 0:03:22invented in the Victorian era. At the moment, they're all mixed up.
0:03:22 > 0:03:24- Happy with that?- Yeah.- Easy rules.
0:03:24 > 0:03:28If you win, you get your own electric light bulb. You ready?
0:03:28 > 0:03:3130 seconds on the clock. Your time starts now.
0:03:31 > 0:03:33The kite, was it invented in Victorian times?
0:03:33 > 0:03:35- Yeah, I think so.- OK, X-ray?
0:03:35 > 0:03:39- No.- What are you going to replace it with?- Teabags.
0:03:39 > 0:03:42Tea bags, you think tea bags were invented before 1901, OK.
0:03:42 > 0:03:47- What next? We've got television.- No. - Replace it with stamps, please.
0:03:47 > 0:03:49Stamps going to go there instead, OK. Beautiful.
0:03:49 > 0:03:51What about the electric light bulb?
0:03:51 > 0:03:54- I'm pretty sure that was right there.- Faraday, wasn't it?
0:03:54 > 0:03:56What about the aeroplane?
0:03:56 > 0:03:59- Replacing that with? - Leave it there.
0:03:59 > 0:04:02You think the aeroplane was invented between 1837 and 1901?
0:04:02 > 0:04:03KLAXON SOUNDS
0:04:03 > 0:04:05I know the answer cos I'm a bit of a geek about aeroplanes
0:04:05 > 0:04:08and you're not a million miles away, but let's go through the answers.
0:04:08 > 0:04:11Was kite invented in the Victorian times?
0:04:11 > 0:04:14The answer is no, it wasn't.
0:04:14 > 0:04:17The kite was invented apparently 2,800 years ago,
0:04:17 > 0:04:19well before the Victorians got involved.
0:04:19 > 0:04:22Tea bags, were they invented in the Victorian era?
0:04:22 > 0:04:27The answer is no. That was in 1908.
0:04:27 > 0:04:30My moustache has got a bit of a problem.
0:04:30 > 0:04:32So that's a no. What about the stamp?
0:04:32 > 0:04:34Was that invented in the Victorian times?
0:04:34 > 0:04:37The answer is yes. Congratulations.
0:04:37 > 0:04:40So that was 1840,
0:04:40 > 0:04:43the first Black Penny or Penny Black was first issued.
0:04:43 > 0:04:44It's very difficult to get facts right
0:04:44 > 0:04:46with a moustache that's vertical.
0:04:46 > 0:04:50Electric light bulb. What do you reckon about that?
0:04:50 > 0:04:52It is. Congratulations.
0:04:52 > 0:04:54And that was Thomas Edison in 1879.
0:04:54 > 0:04:57He also invented the voice recorder and the motion picture camera.
0:04:57 > 0:04:59Thank you for our studio, sir.
0:04:59 > 0:05:01The aeroplane, now I know this was a little bit later
0:05:01 > 0:05:04cos the Wright Brothers invented it. I think it was 1903.
0:05:04 > 0:05:07I've got the facts here. Am I right about this? Yes!
0:05:07 > 0:05:09I didn't even read that. Beautiful.
0:05:09 > 0:05:12So, basically, you've got two out of five.
0:05:12 > 0:05:16The ones at the bottom that were Victorian were the dishwasher,
0:05:16 > 0:05:19believe it or not, in 1850. I'll have to show you that to prove it.
0:05:19 > 0:05:22We're not just playing with you. Television's had it, it's done.
0:05:22 > 0:05:24We don't need the TV any more.
0:05:24 > 0:05:28What else was there? Horse glasses, as in glasses for horses.
0:05:28 > 0:05:30It's absolutely true. Amazing.
0:05:30 > 0:05:33I wondered why I kept going pffft when I was eating my grass!
0:05:33 > 0:05:35So there you have it. You've got two out of five.
0:05:35 > 0:05:39Congratulations, although you were pretty rubbish.
0:05:39 > 0:05:42Maybe we could celebrate how rubbish you were by introducing a new clip
0:05:42 > 0:05:43of the new series?
0:05:43 > 0:05:48Now we have a sneak peek of episode ten, series three of Hetty Feather.
0:05:48 > 0:05:50Why, Hetty Feather!
0:05:52 > 0:05:55The book in the exchange for the girl.
0:05:55 > 0:05:59- You've got Emily?- And strict instructions. Keep it to yourself.
0:05:59 > 0:06:03- You're from Mr Grace's gang. - Just read and do what we say.
0:06:10 > 0:06:14'Give the boy the book. Inform no-one.
0:06:14 > 0:06:16'Do not sent for the constabulary...
0:06:18 > 0:06:21'..Matron.'
0:06:21 > 0:06:23CHEERING AND APPLAUSE
0:06:23 > 0:06:26Even the sneak peeks have got cliff-hangers on them.
0:06:26 > 0:06:28Orla, Hugo, thank you so much for being here.
0:06:28 > 0:06:30A round of applause for our cast from Hetty Feather, everybody.
0:06:30 > 0:06:32- Amazing. - CHEERING AND APPLAUSE
0:06:32 > 0:06:35Now, when you're not watching Hetty Feather, what should you be doing?
0:06:35 > 0:06:38I think you should be watching Radzi fall over in water.
0:06:38 > 0:06:40It's my favourite thing and I can't see it enough.
0:06:43 > 0:06:45Whoo!
0:06:50 > 0:06:56For this BP challenge, I've taken on water-skiing and it's been awesome!
0:06:56 > 0:06:57Yeah!
0:06:57 > 0:07:00Under the guidance of my expert coach, Nick...
0:07:00 > 0:07:03Really good. I think we've got a natural.
0:07:03 > 0:07:06..I've been giving it everything I've got.
0:07:08 > 0:07:11Which is useful, because we are here
0:07:11 > 0:07:14at the National Water-skiing Championships.
0:07:14 > 0:07:18After just starting my training two months ago, I'm going to attempt
0:07:18 > 0:07:22to perform an actual routine here.
0:07:22 > 0:07:24Is it too late to pull out?
0:07:27 > 0:07:30The Nationals attract the finest young water-skiers
0:07:30 > 0:07:32the UK has to offer.
0:07:32 > 0:07:35The very best of the best.
0:07:35 > 0:07:38And...me.
0:07:38 > 0:07:41I'll be performing three water-ski tricks in a row.
0:07:41 > 0:07:44I have to do two 90-degree turns.
0:07:44 > 0:07:47Two 180-degree spins
0:07:47 > 0:07:52and, finally, two complete 360-degree rotations
0:07:52 > 0:07:56and just two attempts of 20 seconds to get them right.
0:07:56 > 0:07:59I've loved training for this challenge. It has been brilliant.
0:07:59 > 0:08:02I've learned there are things I can do quite well and learn quickly
0:08:02 > 0:08:05and there are things I actually cannot do at all,
0:08:05 > 0:08:09but the thing that I'm most worried about are my 180s, because I only
0:08:09 > 0:08:15get one chance at those and if they go wrong, well, you'll know,
0:08:15 > 0:08:18because I'll stop on the spot and I'll face-plant the water
0:08:18 > 0:08:21and it's really going to hurt!
0:08:21 > 0:08:23And, because this is a top competition,
0:08:23 > 0:08:28there's a panel of expert judges who'll be watching my every move.
0:08:28 > 0:08:33If I put just one ski wrong, they'll disqualify me. No pressure, then.
0:08:33 > 0:08:36Time for some last-minute advice from my coach Nick.
0:08:36 > 0:08:40The tricks themselves are about how many degrees you turn through.
0:08:40 > 0:08:42Did you get your skis perfectly backwards?
0:08:42 > 0:08:44That's what the judges are going to be looking for.
0:08:44 > 0:08:47If you get 170 degrees, it won't count.
0:08:47 > 0:08:49I'm not just concerned about performing the tricks,
0:08:49 > 0:08:53it's squeezing them in to just 20 seconds.
0:08:53 > 0:08:5520 seconds doesn't sound long until you have to hold your breath.
0:08:55 > 0:08:57This is a new thing by the way.
0:08:57 > 0:09:00So when we were training, I had no idea that
0:09:00 > 0:09:04I only had two lots of 20 seconds to get this right
0:09:04 > 0:09:09until the penultimate session when you said, "Now we've got the skills.
0:09:09 > 0:09:13"Now we just need to do it in a condensed time"
0:09:14 > 0:09:19Putting the tricks together against the clock and in front of the judges
0:09:19 > 0:09:24is going to be so tough and, as I do my warm up, I am very nervous.
0:09:28 > 0:09:31One chance and hopefully, when I get out of this water,
0:09:31 > 0:09:34you're going to see a big smile on this face.
0:09:38 > 0:09:42Fortunately, I'm allowed one quick practice to get myself ready,
0:09:42 > 0:09:46but as I try one of the 180-degree turns...
0:09:47 > 0:09:49..disaster!
0:09:49 > 0:09:52This is the worst possible start.
0:09:52 > 0:09:55I have to put this out of my mind and get on with it.
0:09:55 > 0:09:57'OK, skier.'
0:09:57 > 0:10:01First up, two sets of 90-degree turns.
0:10:01 > 0:10:04I have to turn to each side and slide on the water.
0:10:05 > 0:10:08Right, yes.
0:10:08 > 0:10:10Now left.
0:10:10 > 0:10:13Good start, but now the tricks get hard.
0:10:13 > 0:10:16Next, the dreaded 180.
0:10:16 > 0:10:19I have to turn and ski backwards twice!
0:10:21 > 0:10:23That's one.
0:10:26 > 0:10:28And there's the other!
0:10:28 > 0:10:30Yes, get in!
0:10:30 > 0:10:32And, last, the hardest of all,
0:10:32 > 0:10:35two full 360-degree turns.
0:10:37 > 0:10:38One done.
0:10:38 > 0:10:42A bit of a stumble! I nearly lost it, but I'm still standing.
0:10:42 > 0:10:45Come on, Radzi, one more time.
0:10:47 > 0:10:49Yes, I think I've done it!
0:10:49 > 0:10:51What a feeling!
0:10:53 > 0:10:56But then, Nick has some news.
0:10:56 > 0:10:59I don't think your 360s were all in time.
0:10:59 > 0:11:02He doesn't think I've managed to fit everything into the 20 seconds
0:11:02 > 0:11:05and then the judges confirm it.
0:11:05 > 0:11:10'The 360s were out of time. The 360s were out of time.'
0:11:12 > 0:11:14So I need to go again.
0:11:14 > 0:11:20I've got just one more chance to complete my two 360-degree turns.
0:11:20 > 0:11:22If I fall, then those months of training will have all
0:11:22 > 0:11:24been for nothing.
0:11:24 > 0:11:27OK, Radzi, one last chance. Come on.
0:11:31 > 0:11:36That's one. Now for the second. Can I do it? Come on, come on.
0:11:36 > 0:11:39One hand off. I've started the turn. Can I get all the way round?
0:11:39 > 0:11:41I've grabbed it. I've made it!
0:11:41 > 0:11:45I cannot believe it! Yes! Yes! Yes! Yes! Yes!
0:11:45 > 0:11:47I am over the moon!
0:11:49 > 0:11:51'All tricks in time.'
0:11:51 > 0:11:55All that hard work by Nick and his team has totally paid off,
0:11:55 > 0:11:57but what do the judges think?
0:11:57 > 0:11:58It takes years and years and years
0:11:58 > 0:12:00for the top trick skiers
0:12:00 > 0:12:01to do what they do
0:12:01 > 0:12:04so for him to come out here at a National Championships
0:12:04 > 0:12:06and to do a run on two skis like he did
0:12:06 > 0:12:09I just think is absolutely brilliant.
0:12:09 > 0:12:11Of all the Blue Peter challenges I've done,
0:12:11 > 0:12:16none have rested so much on one attempt and knowing that I could
0:12:16 > 0:12:20start and fall in straight away and there's no coming back from it.
0:12:20 > 0:12:25I cannot tell you how much I have loved this experience.
0:12:25 > 0:12:28Water-skiing, what a sport!
0:12:30 > 0:12:34What a challenge that was, and Nick, my coach, thank you so much, sir.
0:12:34 > 0:12:35You are a legend.
0:12:35 > 0:12:38Do you mean "water" challenge that was?
0:12:38 > 0:12:39I write all the comedy on this show.
0:12:39 > 0:12:41Let's have a look at the Big Badge Wall.
0:12:41 > 0:12:44It's top-to-toed in your creative artwork.
0:12:44 > 0:12:47We love hearing from you, especially when I say something that I'm
0:12:47 > 0:12:49joking about and then somebody goes and does it.
0:12:49 > 0:12:52A few weeks ago I said I want a life-size picture of me.
0:12:52 > 0:12:57- Kate, you are an absolute genius. Look, there it is.- That's so good.
0:12:57 > 0:12:59It's my actual height as well, six foot four.
0:12:59 > 0:13:04- And, Barney, not just you. Look at us as well.- One, two, three, go!
0:13:04 > 0:13:06- Thank you very much.- I wish I was this tall.
0:13:06 > 0:13:08Yeah, you're only four foot.
0:13:08 > 0:13:10If you look at mine, you'll see a Blue Peter badge on it, Kate.
0:13:10 > 0:13:13That's yours. It's on its way to you. Congratulations.
0:13:13 > 0:13:15Orla and Hugo, what have you seen on here?
0:13:15 > 0:13:17Over here we have a model of the Blue Peter studio,
0:13:17 > 0:13:19which was made by Ffion from Conwy
0:13:19 > 0:13:21and they're going to get their very own Blue Peter badge.
0:13:21 > 0:13:24It's got everyone, including Shelley the tortoise.
0:13:24 > 0:13:27- Found it.- No, that doesn't count.
0:13:27 > 0:13:30That's why Ffion from Conwy has earned HER Blue Peter badge.
0:13:30 > 0:13:32- You need to be a presenter. That was wicked.- Wow, Hugo, lovely.
0:13:32 > 0:13:35- And you sighed when Barney told a jokey-jokey...- You'll fit right in.
0:13:35 > 0:13:37Thanks very much.
0:13:37 > 0:13:40Now Rowena from Luton sent us in this fantastic segment work
0:13:40 > 0:13:43with me, Barn and Lindsey all as thirds of a circle.
0:13:43 > 0:13:45I like your work, Rowena. Thank you very much.
0:13:45 > 0:13:47And Phoebe, who's eight from York, has done this.
0:13:47 > 0:13:49It's a mini telly box.
0:13:49 > 0:13:51She's put little buttons and everything,
0:13:51 > 0:13:54and it's Iggy and I sat there with Calum by the BP Badge Wall.
0:13:54 > 0:13:57- How good is that?- It's so good. - Well done.- Thanks, Phoebs.
0:13:57 > 0:14:00Please do keep your post coming in to the usual address
0:14:00 > 0:14:02and if you do earn yourself a Blue Peter badge,
0:14:02 > 0:14:07you will get yourself into over 200 attractions across the UK.
0:14:07 > 0:14:10- ALL:- # For free! # - Nice.
0:14:10 > 0:14:12# But make sure you keep checking the website
0:14:12 > 0:14:15# Because the offers can change. #
0:14:15 > 0:14:17Really good improv there, Radz. Very nice.
0:14:17 > 0:14:20Now, when I found out my recent challenge was taking a ride
0:14:20 > 0:14:22on an extreme piece of engineering,
0:14:22 > 0:14:24I thought, "I've got to give this a go".
0:14:27 > 0:14:32There are more than 2,000 miles of canal across the UK.
0:14:32 > 0:14:35Most of them were built in the 18th century when engineers realised
0:14:35 > 0:14:40water was the perfect way to move things smoothly around the country.
0:14:40 > 0:14:44These man-made canals are a massive engineering achievement
0:14:44 > 0:14:47and today I've come to see a very special section.
0:14:49 > 0:14:53You see, the problem with canals is water isn't great at going
0:14:53 > 0:14:57over hills, so locks were invented.
0:14:57 > 0:15:00Basically, a series of steps to move boats up and down,
0:15:00 > 0:15:05but locks take time - lots of time - though there is a faster way.
0:15:05 > 0:15:08Meet the Falkirk Wheel.
0:15:14 > 0:15:18So this wheel can actually raise and lower boats 24 metres,
0:15:18 > 0:15:21so it's an engineering masterpiece.
0:15:25 > 0:15:27Built using modern technology,
0:15:27 > 0:15:31the Falkirk Wheel is the only rotating boat lift in the world.
0:15:33 > 0:15:35Created to join the Forth and Clyde
0:15:35 > 0:15:39and Union canals in central Scotland, it moves boats from
0:15:39 > 0:15:44one stretch of water to the other by acting like a giant spinning lift.
0:15:44 > 0:15:47It's ingenious, and boy, do I want to have a go.
0:15:53 > 0:15:56It is just an epic bit of engineering, isn't it?
0:15:56 > 0:15:57I mean, look at this.
0:15:59 > 0:16:01The only worrying bit is as you look forward you can't
0:16:01 > 0:16:03see where the canal boat's going to go.
0:16:03 > 0:16:06Look - it just drops off.
0:16:06 > 0:16:08I'm travelling down from the top level to the bottom.
0:16:08 > 0:16:09Thank you very much.
0:16:09 > 0:16:10Natural.
0:16:12 > 0:16:14There we go. We're secure, we're in place.
0:16:14 > 0:16:17They're just going to run round to the back now, shove us in,
0:16:17 > 0:16:20and then we are ready to officially go on the Falkirk Wheel.
0:16:24 > 0:16:28It might not look very fast, but the five-minute turn is a lot
0:16:28 > 0:16:32quicker than the whole day it used to take by locks.
0:16:32 > 0:16:34It's very smooth.
0:16:34 > 0:16:36It doesn't actually feel like you're going anywhere,
0:16:36 > 0:16:40and the cleverest part is, apart from a few wiggles, we are
0:16:40 > 0:16:42staying completely straight here.
0:16:44 > 0:16:46So weird, because I don't feel like we're going anywhere,
0:16:46 > 0:16:47until you look over there
0:16:47 > 0:16:51and see the other side of the Falkirk Wheel coming up,
0:16:51 > 0:16:54and I think any minute now we'll be able to see
0:16:54 > 0:16:55a boat on the other side.
0:16:55 > 0:16:58They're going up, we're going down.
0:16:58 > 0:17:01Oh, look, there's other people! You can just see their heads bobbing up.
0:17:01 > 0:17:04Hi, guys!
0:17:04 > 0:17:07This is so odd, just seeing a boat above your head.
0:17:09 > 0:17:12There we go. We're nearly at the bottom.
0:17:17 > 0:17:19All good, Ron. We're out. We did it.
0:17:19 > 0:17:20Did you enjoy it?
0:17:20 > 0:17:21Yeah, I did. Loved it.
0:17:23 > 0:17:26But I'm not just here for a boat trip. Oh, no.
0:17:28 > 0:17:32Oh, yeah. Nice high-vis.
0:17:32 > 0:17:35I'm actually being allowed to go inside this mechanical wonder,
0:17:35 > 0:17:38and see how it works for myself.
0:17:38 > 0:17:40- Here we are.- Access all areas.
0:17:41 > 0:17:44Engineer Steven is going to be my guide for the day,
0:17:44 > 0:17:47and our first stop is the Wheel's engine room.
0:17:47 > 0:17:49Here we are.
0:17:49 > 0:17:53So all the power happens in here, but it's a huge wheel,
0:17:53 > 0:17:56so I can't imagine how much power that takes.
0:17:56 > 0:17:57Yeah, the wheel is massive.
0:17:57 > 0:18:00The rotating part of the wheel weighs 1,800 tons,
0:18:00 > 0:18:06but it only takes roughly about the power of eight kettles
0:18:06 > 0:18:08to make that whole structure rotate.
0:18:08 > 0:18:11- Eight kettles? Is that it? - Eight kettles. That's it.
0:18:11 > 0:18:13That doesn't seem like enough. How is that enough?
0:18:13 > 0:18:15The secret is keeping the wheel in balance.
0:18:15 > 0:18:18When it's in balance, it's very efficient.
0:18:20 > 0:18:23Because both sides of the wheel are designed to weigh the same,
0:18:23 > 0:18:26it takes very little to make it move,
0:18:26 > 0:18:29like a perfectly balanced see-saw.
0:18:31 > 0:18:35There's no other word for this than "epic". Oh, my goodness.
0:18:35 > 0:18:39Steven, what exactly am I looking at here?
0:18:39 > 0:18:43Well, this is the main axle that rotates the whole wheel structure.
0:18:43 > 0:18:44Really?
0:18:44 > 0:18:48Yes, and what we're looking at here, we have ten hydraulic motors
0:18:48 > 0:18:51and gearboxes that carry out that rotation for us.
0:18:51 > 0:18:54OK, and they're actually just this small, aren't they?
0:18:54 > 0:18:58Yeah, this is the tiny little motor that rotates the wheel,
0:18:58 > 0:19:03and it's these small little motors that rotate that 1,800 tons.
0:19:03 > 0:19:04LINDSEY EXHALES
0:19:04 > 0:19:07It doesn't seem to add up, does it?
0:19:07 > 0:19:09- Well, if you think this is impressive, follow me.- Really?
0:19:09 > 0:19:11- There's more?- There's more.
0:19:11 > 0:19:14- Oh, we're actually going to go inside it?- Yep.
0:19:14 > 0:19:16I love this.
0:19:19 > 0:19:21Oh, my goodness.
0:19:21 > 0:19:23This really is behind the scenes, isn't it?
0:19:23 > 0:19:24Oh!
0:19:24 > 0:19:29Being in here gives me an idea of just how big this wheel is.
0:19:29 > 0:19:30I feel tiny.
0:19:30 > 0:19:32BOTH: Blue Peter!
0:19:32 > 0:19:33THEIR VOICES ECHO
0:19:35 > 0:19:38How cool is that? We should get back to filming. Come on.
0:19:40 > 0:19:42Whoa. Come on, this way.
0:19:43 > 0:19:46Oh, my goodness. We are very high up. I feel sick.
0:19:49 > 0:19:53The Falkirk Wheel has made the most of modern technology to solve
0:19:53 > 0:19:57an age-old problem in a way we've never seen before.
0:19:57 > 0:19:58Do you know what?
0:19:58 > 0:20:00If you told me that I was doing a film where
0:20:00 > 0:20:01I was going to go down the canal,
0:20:01 > 0:20:04I would never have imagined something as epic,
0:20:04 > 0:20:06on such a huge scale, as this.
0:20:06 > 0:20:09It really is an engineering work of art.
0:20:10 > 0:20:13Wow! That was "wheely" impressive. See what I did there?
0:20:13 > 0:20:14Because it was a... It's a wheel.
0:20:14 > 0:20:18Anyway, if you guys are lucky enough to go to the seaside this summer,
0:20:18 > 0:20:20then you might come across a jellyfish in the sea,
0:20:20 > 0:20:22and to help explain about that and everything in between,
0:20:22 > 0:20:25from Sea Life London, it's James.
0:20:25 > 0:20:27- Hi.- Great to have you on Blue Peter. - Good to see you.
0:20:27 > 0:20:29First of all, this looks incredible. What have you got for us?
0:20:29 > 0:20:31- Yeah, hopefully you're ready for this jelly.- I am.
0:20:31 > 0:20:34So at Sea Life London we've got a large jellyfish exhibition,
0:20:34 > 0:20:36and as part of that, we breed our own jellyfish in our jellyfish
0:20:36 > 0:20:39nursery, so these are some jellyfish we made earlier
0:20:39 > 0:20:40that we wanted to show you.
0:20:40 > 0:20:42So first off, I'll show you the different life stages of
0:20:42 > 0:20:44a jellyfish, so if you just look here,
0:20:44 > 0:20:46we've got a bowl with a bit of slate in it.
0:20:46 > 0:20:48Now on it you can see these white dots.
0:20:48 > 0:20:50Those dots are polyps, so these are the early
0:20:50 > 0:20:52stages of a jellyfish, so it's like a little anemone.
0:20:52 > 0:20:54They produce tiny jellyfish when the conditions are right,
0:20:54 > 0:20:57so if you look in here, you can see tiny baby jellyfish.
0:20:57 > 0:20:59WHISPERS: Inside that.
0:20:59 > 0:21:01- You're telling me these are mini jellyfish?- Yep.
0:21:01 > 0:21:02They're about one, two mil in size,
0:21:02 > 0:21:05and even the largest jellyfish in the world, the lion's mane,
0:21:05 > 0:21:07which is 37 metres long when it's fully grown,
0:21:07 > 0:21:09starts off as a tiny baby jellyfish like this.
0:21:09 > 0:21:10That's incredible.
0:21:10 > 0:21:13And they're not fish, even though you say the word "jellyfish"?
0:21:13 > 0:21:14Exactly.
0:21:14 > 0:21:15So "fish" is a technical term,
0:21:15 > 0:21:18and it relates to animals with a backbone.
0:21:18 > 0:21:19Jellyfish don't have a backbone.
0:21:19 > 0:21:21They don't even have bones.
0:21:21 > 0:21:24They're 95% water, and the rest of it is what's called a jelly matrix.
0:21:24 > 0:21:26- This is the tough jelly substance. - Incredible.
0:21:26 > 0:21:28- Is it true they don't have brains?- That's right.
0:21:28 > 0:21:30There's no centralised nervous system,
0:21:30 > 0:21:32so there's nowhere for the signals to go to.
0:21:32 > 0:21:34They detect the world around them and make instant decisions.
0:21:34 > 0:21:36It's like if you touch something hot
0:21:36 > 0:21:38and pull your hand away, that's how a jellyfish lives.
0:21:38 > 0:21:39- They are fascinating.- Yolo.
0:21:39 > 0:21:41We've seen them very small. What comes next?
0:21:41 > 0:21:44Next - so, they release these jellyfish when conditions are right,
0:21:44 > 0:21:46just like blooming flowers in the garden.
0:21:46 > 0:21:47They then grow very quickly.
0:21:47 > 0:21:50Because they don't have bones, they can grow super-quickly.
0:21:50 > 0:21:52So if I just lift this up here, you can see a tube
0:21:52 > 0:21:54here of about a week-old, maybe two week-old jellyfish.
0:21:54 > 0:21:57These are baby moon jellies.
0:21:57 > 0:22:00- Just almost like the size of the end of our fingertips.- Exactly.
0:22:00 > 0:22:02From a couple of mils to that very, very quickly,
0:22:02 > 0:22:04and as long as the water conditions are right, and there's food,
0:22:04 > 0:22:06they grow really quickly.
0:22:06 > 0:22:08About a month on, we've got the moon jellyfish here.
0:22:08 > 0:22:10If you look in here, we've got a group of moon jellyfish,
0:22:10 > 0:22:12and they're still teenagers.
0:22:12 > 0:22:14Fully grown, they'll be about the size of a dinner plate.
0:22:14 > 0:22:1720 jellyfish in here, so that's quite a large group,
0:22:17 > 0:22:19but actually, in the wild they end up in huge numbers.
0:22:19 > 0:22:21They call them blooms or smacks.
0:22:21 > 0:22:23And that's hundreds of thousands of jellyfish,
0:22:23 > 0:22:25and they all congregate together, so they move with the tide
0:22:25 > 0:22:27and they collect together into huge numbers.
0:22:27 > 0:22:30That's them there. Look how many jellyfish there are in a bloom.
0:22:30 > 0:22:32So the ocean currents pick them up.
0:22:32 > 0:22:34These guys can move up and down in the water column.
0:22:34 > 0:22:36They can move towards food,
0:22:36 > 0:22:38but the ocean currents are still stronger,
0:22:38 > 0:22:40so they collect them all together into huge numbers, which is
0:22:40 > 0:22:42why we see these big swarms in the wild.
0:22:42 > 0:22:44- Can I put my hand in? - Yes, let's get in there.
0:22:44 > 0:22:45So these ones you can touch.
0:22:45 > 0:22:48We did a bit of training earlier about how to handle them.
0:22:48 > 0:22:50It's all about being delicate with them.
0:22:50 > 0:22:53- I'm being as delicate as delicate can be. Look at that!- There we go.
0:22:53 > 0:22:55So if we can just hold that one there.
0:22:55 > 0:22:56These guys do have a sting,
0:22:56 > 0:22:58but their sting isn't long enough to get through your skin,
0:22:58 > 0:23:01so even though they do have stingers, you can't feel it.
0:23:01 > 0:23:03So if you just stop him from moving,
0:23:03 > 0:23:04I can just show you some of the body parts.
0:23:04 > 0:23:06If you look on the outside edge,
0:23:06 > 0:23:08that's where you're going to see all the stingers.
0:23:08 > 0:23:11There's a fine lacy series of little stinging tentacles,
0:23:11 > 0:23:13and they're full of things called nematocysts,
0:23:13 > 0:23:15and these are like the mini hypodermic needles that sting you.
0:23:15 > 0:23:19- Wow.- If you look, there's these longer tentacles coming away,
0:23:19 > 0:23:22and they're called the oral arms, so basically they collect the food with
0:23:22 > 0:23:23their stingers, pass it to these oral arms,
0:23:23 > 0:23:25and they carry it to their mouth.
0:23:25 > 0:23:27Now, these guys are very simple organisms,
0:23:27 > 0:23:29so they've got a mouth that takes in the food, but it's also
0:23:29 > 0:23:32where the food comes out, so they eat and poo through the same hole.
0:23:32 > 0:23:35They are fasci... I can't get over how almost not jelly they feel.
0:23:35 > 0:23:38- They feel quite hard. - Much denser than you think.
0:23:38 > 0:23:39It's the jelly matrix. It's a very clever,
0:23:39 > 0:23:42almost crystalline structure that gives them that really dense feel.
0:23:42 > 0:23:44- So, yeah, if you just wash your hands.- I will do.
0:23:44 > 0:23:47Now, James, I can see the red jellyfish.
0:23:47 > 0:23:50Now, where I come from, red means danger.
0:23:50 > 0:23:51Exactly.
0:23:51 > 0:23:54So all jellyfish have stings, but not all stings can hurt you,
0:23:54 > 0:23:55so we've got a variety here.
0:23:55 > 0:23:58We've got the moon jellyfish that have a very light sting that can't
0:23:58 > 0:24:00get through our skin, then we've got some jellyfish near the front.
0:24:00 > 0:24:02Now, these guys are called lagoon jellyfish.
0:24:02 > 0:24:04They don't really have a sting.
0:24:04 > 0:24:07They collect algae from the water around them,
0:24:07 > 0:24:09and they grow it like a garden in their tentacles,
0:24:09 > 0:24:11so to survive, what they do is essentially sunbathe all day.
0:24:11 > 0:24:13So it's something we can all identify with.
0:24:13 > 0:24:15It's a great way to live.
0:24:15 > 0:24:17And in the final ones here, which we've marked as red,
0:24:17 > 0:24:20just to let you know, these guys have real stings to them.
0:24:20 > 0:24:23These are called purple stingers. These are Chrysaora colorata.
0:24:23 > 0:24:24I was going to say that, actually.
0:24:24 > 0:24:26Exactly. Just rolls off the tongue.
0:24:26 > 0:24:28If you look, they've got these long, red tentacles,
0:24:28 > 0:24:30and what they do is drag them behind them in the ocean,
0:24:30 > 0:24:33and if anything bumps into those tentacles, they can sting them
0:24:33 > 0:24:35and then wheel them into their stomach.
0:24:35 > 0:24:37So what we've done is, we also grow plankton at home,
0:24:37 > 0:24:40at the London Aquarium, and we've got a pipette here full,
0:24:40 > 0:24:43so what we're going to get you to do is just gently spray that food
0:24:43 > 0:24:46onto the tentacles, and you'll see them wheeling those tentacles.
0:24:46 > 0:24:47Look at those.
0:24:47 > 0:24:48It's good I've got these gloves on.
0:24:48 > 0:24:51Otherwise, I could be in a wee bit of pain, as my mum would say.
0:24:51 > 0:24:54Exactly. Unlike the moon jellyfish who don't really have a sting,
0:24:54 > 0:24:56these guys have a sting you can really feel,
0:24:56 > 0:24:58so we've made sure you're nice and protected.
0:24:58 > 0:25:00If you want to try a bit more, put more on this guy here.
0:25:00 > 0:25:02You can see how the tentacles just get
0:25:02 > 0:25:04drawn in immediately as they touch the plankton.
0:25:04 > 0:25:05Exactly.
0:25:05 > 0:25:07They swim through the ocean,
0:25:07 > 0:25:08and they drag the tentacles behind them.
0:25:08 > 0:25:10If anything bumps into it,
0:25:10 > 0:25:11they wheel it in and they can eat it.
0:25:11 > 0:25:13James, thank you so much for coming.
0:25:13 > 0:25:16It's been a genuine insight, and so from these fantastic
0:25:16 > 0:25:18creatures to your fantastic creations.
0:25:18 > 0:25:20Check this out.
0:25:23 > 0:25:25Check out this awesome drawing
0:25:25 > 0:25:27by Charlotte from Oxfordshire.
0:25:27 > 0:25:30Charlotte, not only have you made Radzi's dreams come
0:25:30 > 0:25:35true by making him a Wrestlemania champion, you've even included
0:25:35 > 0:25:39a cheering fan and, in a minute, check out those stomach muscles.
0:25:39 > 0:25:41He's actually got a 12-pack.
0:25:41 > 0:25:42A blue badge is on its way to you.
0:25:45 > 0:25:51Next up, Jessica from Preston loves Blue Peter. It says so right there.
0:25:51 > 0:25:55So she's made this drawing with all her favourite BP memories.
0:25:55 > 0:25:58There's wing-walking, wrestling, shark-diving,
0:25:58 > 0:26:01and, of course, there's even our own little Shelley.
0:26:02 > 0:26:06Jessica, you're a BP super-fan worthy of a silver badge.
0:26:06 > 0:26:08Great drawing.
0:26:08 > 0:26:11And speaking of great drawings, have a look at this.
0:26:11 > 0:26:14It's from Freddy in East Lothian.
0:26:14 > 0:26:16We're all setting sail on the Blue Peter ship.
0:26:16 > 0:26:18You can see Barney and Radzi are on top of the sails,
0:26:18 > 0:26:23and as for me, well, I'm chasing the ship on my wave-runner ball,
0:26:23 > 0:26:25saying, "Not again!"
0:26:25 > 0:26:29Not sure about doing that again, especially in shark-infested waters.
0:26:29 > 0:26:32Freddie, my friend, you have earned yourself a blue badge.
0:26:33 > 0:26:37Speaking of sharks, remember when I went swimming with them?
0:26:37 > 0:26:39Well, according to Priya from Birmingham,
0:26:39 > 0:26:42the sharks were thinking about having a little nibble.
0:26:42 > 0:26:45Well, luckily, I survived in one piece. Fab work, Priya.
0:26:45 > 0:26:47You have earned yourself a blue badge.
0:26:49 > 0:26:51And last but not least, ever wondered what us
0:26:51 > 0:26:53presenters would look like as insects?
0:26:53 > 0:26:55Well, Maisie from Devon has the answer.
0:26:55 > 0:26:57She's drawn me as a ladybird,
0:26:57 > 0:27:01she's got Barney there as a stick insect, and she's even got
0:27:01 > 0:27:05Radzi as a caterpillar, and he's even got his big afro.
0:27:05 > 0:27:08We love this, Maisie. You have earned yourself a green badge.
0:27:08 > 0:27:09Well done.
0:27:09 > 0:27:12So Charlotte, Jessica, Freddy, Priya and Maisie,
0:27:12 > 0:27:15well done for earning your BP badges this week.
0:27:15 > 0:27:16If you've been playing Spot Shelley today,
0:27:16 > 0:27:19you'll know that she appeared on the jellyfish tank.
0:27:19 > 0:27:21Go to the BP Fan Club Live on the website to find out who
0:27:21 > 0:27:22spotted her first.
0:27:22 > 0:27:24And we love the BP Fan Club Live.
0:27:24 > 0:27:26You can play other games like Spot Shelley
0:27:26 > 0:27:27and chat to other BP fans.
0:27:27 > 0:27:28That's all we've got time for.
0:27:28 > 0:27:30Make sure you watch next week,
0:27:30 > 0:27:31because we're going
0:27:31 > 0:27:32to be in the garden.
0:27:32 > 0:27:35- I take on a football challenge with the amazing Alex Scott.- Legend.
0:27:35 > 0:27:37And if you've ever fancied learning to juggle, make sure
0:27:37 > 0:27:40you're watching. We're going to be meeting some world-class jugglers.
0:27:40 > 0:27:43Have a great week, everyone. We'll see you then.
0:27:43 > 0:27:44ALL: Bye.