0:00:32 > 0:00:37You're all right. You're all right. Back it in. Back it in.
0:00:38 > 0:00:43Nicely parked. Wow, my first lab rat in space. Come out, say hello!
0:00:43 > 0:00:46Oh, yeah, I forgot to fit a door.
0:00:46 > 0:00:49That's awkward. Anyway, I'm Richard Hammond, this is Blast Lab.
0:00:49 > 0:00:52CHEERING
0:00:52 > 0:00:55In just a few moments, we shall meet two teams of budding young
0:00:55 > 0:00:58scientists who will be competing in top-level scientific experiments
0:00:58 > 0:01:01for great prizes. Let's have a look at what's in store.
0:01:13 > 0:01:15CHEERING
0:01:15 > 0:01:18Now, what, with this being a top-secret underground lab
0:01:18 > 0:01:20and everything,
0:01:20 > 0:01:24it usually has 24-hour protection from a crack team of SAS guards.
0:01:24 > 0:01:28But one of them was climbing a tree and he got stuck and all the others
0:01:28 > 0:01:31have gone round to his mum to get her to ring the Fire Brigade.
0:01:31 > 0:01:34But, don't worry, because I've arranged back-up.
0:01:34 > 0:01:36She is a one-woman fighting machine.
0:01:36 > 0:01:40She's a tough old boot and she knits her own socks. She is my Ninja Nan.
0:01:40 > 0:01:44CHEERING
0:01:50 > 0:01:53Ninja Nan, thanks for standing in.
0:01:53 > 0:01:58Thank you. She looks fragile, but she is, in fact, a trained Ninja.
0:02:02 > 0:02:07See? Nan, if you'd like to take your station in security.
0:02:07 > 0:02:09Nan... NAN! Sorry.
0:02:09 > 0:02:12If you'd like to get settled in there, to security. Thank you.
0:02:12 > 0:02:14Away she goes. Look at her go.
0:02:14 > 0:02:16Look at that, look at that.
0:02:16 > 0:02:18Nan, are you there yet?
0:02:18 > 0:02:19She's here. What's she looking for?
0:02:19 > 0:02:22Oh, her knitting. Yeah,
0:02:22 > 0:02:24it looks like she's settling down to do her knitting,
0:02:24 > 0:02:27but those knitting needles have been balanced for throwing at bad guys.
0:02:27 > 0:02:30Right, let's meet the bunch of people trying
0:02:30 > 0:02:33to get into my lab today. Hello.
0:02:33 > 0:02:36CHEERING
0:02:37 > 0:02:41- Now, you all claim to be the Yellow Team, yeah?- Yes.
0:02:41 > 0:02:43I can't just let anybody into my Blast Lab, we've got to make
0:02:43 > 0:02:46absolutely sure before we let you through security.
0:02:46 > 0:02:50So, for security purposes, identify yourselves by name, please. You are?
0:02:50 > 0:02:54- Annabel.- Olivia. - Amelia.- Annabel, Olivia, Amelia.
0:02:54 > 0:02:57Yeah, that checks out with the file. Now, hidden talent.
0:02:57 > 0:02:59It says here, Amelia,
0:02:59 > 0:03:04you want to be a stand-up comedian and you're going to tell a joke?
0:03:04 > 0:03:08- Yes.- Tell us your joke.- Have you seen the constipation movie?
0:03:08 > 0:03:10The constipation movie? No.
0:03:10 > 0:03:13That's because it hasn't come out yet. It hasn't been released.
0:03:13 > 0:03:16I get it, it's terrible, but I get it. That's a joke.
0:03:16 > 0:03:18OK, by definition that's it, you are the Yellow Team.
0:03:18 > 0:03:22That's confirmed it, come through security, into the Blast Lab.
0:03:22 > 0:03:24CHEERING
0:03:24 > 0:03:28I'm sorry, I can't be too careful, because if I let just anybody in
0:03:28 > 0:03:31you could be after the secrets in this lab.
0:03:31 > 0:03:33- Where are you from?- Buckinghamshire.
0:03:33 > 0:03:38- And we are the TNT Trio.- Lovely. You're all sisters, aren't you?- Yes.
0:03:38 > 0:03:40And you made up your own team name and everything.
0:03:40 > 0:03:43You needn't have bothered, you're the Yellow Team and that's final.
0:03:43 > 0:03:44Welcome. Lovely to have you here.
0:03:44 > 0:03:49Now let's meet the bunch of guys who are claiming to be your opposition.
0:03:49 > 0:03:51Let's have a look. They say they're the Red Team. There they are.
0:03:51 > 0:03:55CHEERING
0:03:55 > 0:03:57You say you're the Red Team.
0:03:57 > 0:03:59- Yes, we are.- Before we can be sure we've got to check it out.
0:03:59 > 0:04:01Identify yourselves by name.
0:04:01 > 0:04:03- Jed.- Aidan.- Owen.
0:04:03 > 0:04:06Jed, Aidan, Owen, yeah, that checks out with the file.
0:04:06 > 0:04:10Hidden talent, it says here, Owen, it's you.
0:04:10 > 0:04:11You've brought your banjo.
0:04:11 > 0:04:15- Um, when did the banjo happen? - What is that then?
0:04:15 > 0:04:17- It's called a trumpet. - Correct, that's what it says
0:04:17 > 0:04:19on this file here. Just trying to trick you there.
0:04:19 > 0:04:23You never know, with villains trying to get in here. Give us a tune.
0:04:23 > 0:04:26HE PLAYS "Ba Ba Black Sheep"
0:04:26 > 0:04:31Well, I suggest we don't release it as a single, but it is musical.
0:04:31 > 0:04:32So, you are the Red Team,
0:04:32 > 0:04:34you're cleared through security, come into the Blast Lab.
0:04:34 > 0:04:38CHEERING
0:04:40 > 0:04:42Hello, Red Team, where have you three come from?
0:04:42 > 0:04:45WE'RE FROM HAMPSHIRE
0:04:45 > 0:04:47AND WE ARE THE WHIZ-BANG WILLIS BOYS.
0:04:47 > 0:04:50CLEVER NAME, BUT YOU'RE NOT, YOU'RE THE RED TEAM.
0:04:50 > 0:04:55- You're brothers, aren't you?- Yes. - OK, three brothers, three sisters.
0:04:55 > 0:05:00I'm expecting some pretty intense competition in the Blast Lab today.
0:05:00 > 0:05:02We're nearly at round one.
0:05:02 > 0:05:06So Red Team, Yellow Team, go and get settled in comfortable and ready.
0:05:06 > 0:05:09For this, we're going to need the help of a special friend.
0:05:09 > 0:05:11He does nought to 60 in five minutes
0:05:11 > 0:05:15and the Times crossword in three. It is, of course, Oliver.
0:05:31 > 0:05:34CHEERING
0:05:34 > 0:05:38I've fitted Oliver with the very latest hi-tech
0:05:38 > 0:05:41state-of-the-art fact-nav system.
0:05:41 > 0:05:43But it was very fiddly and there were so many wires
0:05:43 > 0:05:46that eventually I couldn't be bothered with all of them.
0:05:46 > 0:05:50As a result, quite a lot of the facts aren't right.
0:05:50 > 0:05:52So, our two teams are going to decide.
0:05:52 > 0:05:54I give them each a science fact
0:05:54 > 0:05:56and they tell me if it is true or false.
0:05:56 > 0:05:58If it is true, Oliver will do this...
0:05:58 > 0:06:01CAR HORN
0:06:01 > 0:06:04And if it's false, Oliver will do this...
0:06:04 > 0:06:06SHIP'S HORN
0:06:06 > 0:06:08So, it's simple enough, teams.
0:06:08 > 0:06:10Three sisters, three brothers and your first chance
0:06:10 > 0:06:13to earn a point in Blast Lab, OK?
0:06:14 > 0:06:16Science fact number one for the Red Team first of all.
0:06:16 > 0:06:20Astronauts get taller in space.
0:06:20 > 0:06:25Have a chat. Is it true or false, audience, what do we think?
0:06:25 > 0:06:27True.
0:06:27 > 0:06:30You think it's true. OK, the Red Team think it's true.
0:06:30 > 0:06:33Oliver, is it true or false?
0:06:31 > 0:06:33CAR HORN
0:06:33 > 0:06:36Yes, it is true. That's a point for the Red Team.
0:06:36 > 0:06:38CHEERING
0:06:38 > 0:06:41On Earth gravity pushes your spine and compresses it,
0:06:41 > 0:06:43but when astronauts are
0:06:43 > 0:06:46in space there is no gravity so it stretches out, like a giant spring.
0:06:46 > 0:06:51It can increase your height by up to 5cm. I'm thinking of going!
0:06:51 > 0:06:56Right, Yellows. More electrical impulses are generated in one day
0:06:56 > 0:07:02by a single human brain than by all the telephones in the world?
0:07:02 > 0:07:04Is that true or false? Have a chat.
0:07:04 > 0:07:07Audience, what do we think? Is that true or false?
0:07:09 > 0:07:13- We think it's true. - The Yellows think it's true.
0:07:13 > 0:07:14CAR HORN
0:07:14 > 0:07:16It is true, so that's
0:07:16 > 0:07:19a point to the Yellows as well, straightaway.
0:07:19 > 0:07:21Well, done, that's another point.
0:07:21 > 0:07:24Electrical impulses are there to help your brain process information.
0:07:24 > 0:07:29They travel at up to 100m per second, which is really fast.
0:07:29 > 0:07:33Right, the third one is a question, not a fact. I need you to give me
0:07:33 > 0:07:35an answer and write it down on the boards in front of you.
0:07:35 > 0:07:41What percentage of the world's water is drinkable?
0:07:41 > 0:07:43Audience, any ideas?
0:07:43 > 0:07:46I shall come and talk to you using this.
0:07:46 > 0:07:48You see, they combined the boot with wheels to make
0:07:48 > 0:07:51roller skates, I've combined the boot with a microphone to make...
0:07:51 > 0:07:53well, this. What do we think?
0:07:53 > 0:07:55Any ideas what percentage of the world's water is drinkable?
0:07:55 > 0:07:58- 50 or 40%?- 50 or 40%. OK.
0:07:58 > 0:08:03- 60%.- 60%. Right, teams, have you both come up with your answers?
0:08:03 > 0:08:06- Yeah.- Turn your boards around, let's have a look.
0:08:06 > 0:08:105% from the Reds, 5% from the...
0:08:10 > 0:08:13That's quite a coincidence. You've both gone for the same answer.
0:08:13 > 0:08:18Well, the real answer is 1% of the world's water is drinkable.
0:08:18 > 0:08:22It's a point to both teams because you're both closest.
0:08:22 > 0:08:25It's a draw with two points each.
0:08:38 > 0:08:41That's all to come. But right now it is mini science.
0:08:41 > 0:08:43Our teams are going to use their science knowhow
0:08:43 > 0:08:48and household objects to conduct incredible scientific experiments.
0:08:48 > 0:08:52To help with this round, I made a time-travel machine
0:08:52 > 0:08:56to bring my science teacher here to Blast Lab, from school.
0:08:56 > 0:08:58But there were problems.
0:08:58 > 0:09:01Probably because time travel is still in its infancy.
0:09:01 > 0:09:05And so is she now, I'm talking, of course, about Mini Miss.
0:09:05 > 0:09:08CHEERING
0:09:10 > 0:09:12- Hello, Miss.- Not amused, Richard. - No, you were quite cross.
0:09:12 > 0:09:14Sorry. What are we doing today then?
0:09:14 > 0:09:17Today we're looking at water tension.
0:09:17 > 0:09:20Miss, I don't get that. What's water got to be so tense about?
0:09:20 > 0:09:22It's a joke, Miss and...
0:09:22 > 0:09:24I'm sorry. Carry on. What are we doing?
0:09:24 > 0:09:27Water is actually quite sticky
0:09:27 > 0:09:30and the team today are going to be assessing just how sticky it is.
0:09:30 > 0:09:32The teams will be given containers
0:09:32 > 0:09:36holding water and a selection of lids,
0:09:36 > 0:09:40all with different fabrics in them, with different-sized holes in them.
0:09:40 > 0:09:43The teams then have to choose a lid and put it on their container
0:09:43 > 0:09:46full of water. They then have to turn
0:09:46 > 0:09:48their container upside down and hold it over their team mate's head.
0:09:48 > 0:09:50The winning team
0:09:50 > 0:09:54is the one that gets their team-mate to stay driest in the game.
0:09:54 > 0:09:56Fine. One thing I'd like to discuss.
0:09:56 > 0:10:00There had to be two, I'm assuming, volunteers to be
0:10:00 > 0:10:01the ones to sit in the pool and have
0:10:01 > 0:10:04the huge flask of water held over their heads?
0:10:04 > 0:10:07Aiden, Amelia, you two, I'm presuming,
0:10:07 > 0:10:10have volunteered for this duty. Can I just ask the question?
0:10:10 > 0:10:15- Are you both the youngest of your brothers and sisters?- Yes.
0:10:15 > 0:10:17We've got the two youngest brothers and sisters.
0:10:17 > 0:10:20Teams, was this an entirely unanimous decision, or did you
0:10:20 > 0:10:23- volunteer them?- We volunteered them.
0:10:23 > 0:10:28It was kind of a dilemma. We want to see him wet, but we want the prizes.
0:10:28 > 0:10:30- Are they always like this?- Yes.
0:10:30 > 0:10:34Good luck, youngest brothers and sisters. Look, I'm feeling generous,
0:10:34 > 0:10:36I'm going to give you some time to think about this.
0:10:36 > 0:10:38There are some tactics. I want you to think about the science.
0:10:38 > 0:10:41You have a bit of time to gather around the table and have
0:10:41 > 0:10:43a look at the lids and think.
0:10:43 > 0:10:46This game really is all about water tension.
0:10:46 > 0:10:49And water tension exists because water molecules,
0:10:49 > 0:10:52the tiny bits that make up water, are attracted to each other.
0:10:52 > 0:10:54And you can see it for yourself if you get a glass of water
0:10:54 > 0:10:57and fill it drop by drop by drop,
0:10:57 > 0:11:00keep going and eventually you'll fill it so that the water stands
0:11:00 > 0:11:02above the top of the glass. And that's the water tension,
0:11:02 > 0:11:05that's the molecules of water clinging together, holding together
0:11:05 > 0:11:07so much that you can fill it so that it bulges out over the top.
0:11:07 > 0:11:12So, with the lids, when they turn these flasks full of water
0:11:12 > 0:11:14upside down, water tension in the tiny
0:11:14 > 0:11:18holes will be clinging together and holding all the water in above it.
0:11:18 > 0:11:21But it only works with some of the lids.
0:11:21 > 0:11:24It is up to our teams to decide which ones.
0:11:24 > 0:11:26Right, you've had enough talk time.
0:11:26 > 0:11:29Now, it is a draw right now, the scores are the same.
0:11:29 > 0:11:32So, to decide which team goes first we're going to draw pens.
0:11:32 > 0:11:36Four pens, one of which is a short pen. Pick a pen.
0:11:36 > 0:11:38Pick a pen, Yellows.
0:11:38 > 0:11:42Sorry, Yellows. Oh, I'm sorry, Olivier,
0:11:42 > 0:11:45that means Reds decide to go first or second?
0:11:45 > 0:11:48- First, please.- OK. Have you decided which lid you're going to use?- Yes.
0:11:48 > 0:11:52Which one? That one. Why are you going to use that one?
0:11:52 > 0:11:55It looks like it's quite an absorbent material.
0:11:55 > 0:11:58We're thinking that a weenie bit will come out or none.
0:12:04 > 0:12:06This is it.
0:12:06 > 0:12:10If we're ready with the timer, remove the postcard now.
0:12:10 > 0:12:14You see, you've not chosen well at all. OK, times up.
0:12:14 > 0:12:21Cover it up. OK, that is the first go, and frankly, it was a disaster.
0:12:21 > 0:12:23Yellows, decide which ones.
0:12:23 > 0:12:26Can I ask why you've chosen that lid in this instance?
0:12:26 > 0:12:29The thick one that they chose didn't work, so we're going
0:12:29 > 0:12:31to try a slightly thinner one.
0:12:39 > 0:12:44If you're ready, audience. Remove the postcard now.
0:12:44 > 0:12:47Look at that! Look at that!
0:12:47 > 0:12:51Cover it up, very carefully. Not a drop. Well done, Yellows.
0:12:54 > 0:12:58You are ahead right now. That point is looking like being yours.
0:12:58 > 0:13:01- Reds, which one are you going for? - That one.- Why the wire mesh?
0:13:01 > 0:13:06We've decided that the ones with smaller holes seem to work better.
0:13:12 > 0:13:15We're all ready, audience. Remove the postcard now.
0:13:15 > 0:13:21Oh, now the water tension is holding it in in those small holes.
0:13:21 > 0:13:22Cover it up.
0:13:22 > 0:13:26Cover it up, cover it up. You left it there longer on purpose, Jed.
0:13:26 > 0:13:29Well done, that was a good go. That made up for the last go.
0:13:29 > 0:13:31- High five.- Yellows, which lid are you going for?
0:13:31 > 0:13:34- We're going for the black one. - Why are you going for that one?
0:13:34 > 0:13:37Because it has slightly smaller holes than the white one.
0:13:42 > 0:13:45Confident? Quite dry at the moment. Lovely and dry and comfortable.
0:13:45 > 0:13:48Oh, that's not my fault.
0:13:48 > 0:13:50Oh. That's...
0:13:50 > 0:13:52we really didn't
0:13:52 > 0:13:56need the timer there, Amelia, it really just all fell out.
0:13:56 > 0:13:59I think that's put the Yellows behind the Reds now,
0:13:59 > 0:14:01despite Aiden being soaked.
0:14:01 > 0:14:03This is your last one, Reds, what are you going for?
0:14:03 > 0:14:06That white nylon one there.
0:14:10 > 0:14:13If you'd like to hold it above Aiden's head and...
0:14:13 > 0:14:15go!
0:14:17 > 0:14:19Oh, Lord. That just didn't. No.
0:14:19 > 0:14:21Yellows,
0:14:21 > 0:14:24You are now ahead again. You've got to choose this one.
0:14:34 > 0:14:37OK, remove the postcard, we'll start the timer. Here we go.
0:14:37 > 0:14:40Oh, look at that!
0:14:41 > 0:14:46- TIMER RINGS - Cover it, cover it up. Well done.
0:14:47 > 0:14:50We are all agreed...
0:14:52 > 0:14:55and Aiden will certainly agree that there is only one result there.
0:14:55 > 0:14:58The Yellows take the point, which puts them in the lead.
0:14:58 > 0:15:00CHEERING
0:15:02 > 0:15:05So, the lids with the smallest holes worked best of all.
0:15:05 > 0:15:08This is because with small holes there is less chance that
0:15:08 > 0:15:13the surface tension will break apart enough to let the water flow out.
0:15:14 > 0:15:18The thing is, if that much water in these flasks can be held in
0:15:18 > 0:15:22like that with surface tension it must be quite a strong force.
0:15:22 > 0:15:26I wonder - how strong is the surface tension on a pool full of water?
0:15:29 > 0:15:32On a rare experiment-free afternoon at my secret
0:15:32 > 0:15:37test facility, a clueless lab rat heads to the pool for a cool down.
0:15:39 > 0:15:42His brain tells him water is soft and safe.
0:15:42 > 0:15:46He can swim in it, drink it, and sometimes he even washes in it.
0:15:46 > 0:15:50But lab rats aren't known for their brains.
0:15:54 > 0:15:56That looked like it hurt.
0:15:58 > 0:16:02It seems that the impact of bare skin on water from just a couple of
0:16:02 > 0:16:05feet up can cause pain.
0:16:08 > 0:16:13But why is this? Well, it's all down to how water behaves.
0:16:13 > 0:16:16We know that water has a high surface tension
0:16:16 > 0:16:19which means it creates a sort of skin on the surface of the water.
0:16:19 > 0:16:24But also, as water is a liquid it can't easily be squashed.
0:16:24 > 0:16:27This means that when the lab rat hits the pool the water molecules
0:16:27 > 0:16:30push against his belly.
0:16:30 > 0:16:33So, if a lab rat, or, indeed, any object, hits the water with
0:16:33 > 0:16:36enough force it's as if it is hitting something solid.
0:16:39 > 0:16:41But we need to test this theory.
0:16:43 > 0:16:47First, our lab rat is fitting with
0:16:47 > 0:16:49a scientifically adapted belly-flop wet suit.
0:16:49 > 0:16:53Just one final modification.
0:16:54 > 0:16:56Perfect.
0:17:04 > 0:17:06Safety harness... check.
0:17:11 > 0:17:15Smiley face on belly... check.
0:17:16 > 0:17:19One giant crane hook... check.
0:17:19 > 0:17:21He's ready to go.
0:17:26 > 0:17:29We're going to suspend the lab rat above the water
0:17:29 > 0:17:31then drop him into the pool.
0:17:31 > 0:17:34Lab rats are useless and bred for such things,
0:17:34 > 0:17:36so please don't feel sorry for them or,
0:17:36 > 0:17:39heaven forbid, actually do anything they do.
0:17:45 > 0:17:49It seems that water isn't as soft as it looks.
0:17:59 > 0:18:02This got us thinking. What damage could water do to something dropped
0:18:02 > 0:18:05from an even greater height?
0:18:05 > 0:18:07Our lab rat seems to be a little worse
0:18:07 > 0:18:11for wear, so we'll have to use a body double. But what can we use?
0:18:11 > 0:18:15A metal barrel... a perfect likeness.
0:18:22 > 0:18:26There it goes, all the way to 30m above the pool.
0:18:29 > 0:18:33Three, two, one...
0:18:33 > 0:18:36Bombs away!
0:18:38 > 0:18:41Hold the experiment right there! Because...
0:18:41 > 0:18:43I think there's an extra point in it for this one.
0:18:43 > 0:18:47The score's at 3-2 to the Yellows, you could do with
0:18:47 > 0:18:50the point, Reds. Right, an extra point for the team that can tell me,
0:18:50 > 0:18:52most accurately, what happens.
0:18:52 > 0:18:54Have a think, have a talk.
0:18:54 > 0:18:57Audience, I'm going to ask you as well. What do we think?
0:18:57 > 0:19:03- Talk to the boot?- It might smack down, stop and then just sink.
0:19:03 > 0:19:05So no buckling? OK.
0:19:05 > 0:19:08- Have you made your minds up, sisters and brothers?- Yes.
0:19:08 > 0:19:11- What's your answer then? - I don't think it will buckle.
0:19:11 > 0:19:14- You don't think it will buckle? - We think it will buckle.
0:19:14 > 0:19:16The boys say no, the girls - yes.
0:19:16 > 0:19:18Let's find out and watch it.
0:19:21 > 0:19:24Three, two,...
0:19:25 > 0:19:27one...
0:19:27 > 0:19:29Bombs away!
0:19:42 > 0:19:45It looks like the end of the line for that barrel.
0:19:45 > 0:19:49The water really does become as hard as concrete from that height.
0:19:49 > 0:19:53There we go, the barrel did buckle, that's another point to the Yellows.
0:19:53 > 0:19:574-2 is the score right now. That's water tension for you.
0:19:57 > 0:19:59Never do a belly flop again. Ouch!
0:19:59 > 0:20:03Right, both teams, time for you to go off and get into protective suits
0:20:03 > 0:20:05for the final game. Away you go.
0:20:05 > 0:20:10And while they go, can I just tell you, audience,
0:20:10 > 0:20:13that should have been the end of that experiment, but we
0:20:13 > 0:20:17thought we'd experiment a bit more and take it one stage further.
0:20:20 > 0:20:23Ah, here's our lab rat in his pride and joy.
0:20:23 > 0:20:27It might not be much to look at but it means a lot to him.
0:20:41 > 0:20:44It's a shame we're going to have to commandeer the car in the name
0:20:44 > 0:20:46of science.
0:20:46 > 0:20:51First, let's scientifically attach our giant crane to the car.
0:20:51 > 0:20:55Flip him on his roof before lifting him skywards.
0:21:03 > 0:21:05Here we go then.
0:21:05 > 0:21:08One car suspended 30m in the air
0:21:08 > 0:21:13above one pool and a number of unsuspecting inflatable toys.
0:21:13 > 0:21:15Three, two,
0:21:15 > 0:21:16one...
0:21:16 > 0:21:18drop!
0:21:46 > 0:21:50Oh, dear. I think we can safely say water won that battle.
0:21:50 > 0:21:52Even though the car ended up
0:21:52 > 0:21:56on the Tarmac, it's actually the water that's caused all that damage.
0:21:56 > 0:21:58I'm sure the lab rat will never notice.
0:21:58 > 0:22:01Just a little water damage, lab rat, nothing to worry about.
0:22:13 > 0:22:16Well, it filled an afternoon for them. Right, time for us all
0:22:16 > 0:22:21all to move on, because it's time for the messy, messy mess test.
0:22:23 > 0:22:25Which, today is the gungy bungy,
0:22:25 > 0:22:28featuring, of course, my Blast Lab catapults.
0:22:28 > 0:22:31These were originally designed and built for high-speed, airborne
0:22:31 > 0:22:36cat projection, but were a complete disaster. So, today we're going
0:22:36 > 0:22:40to use them for firing prize pods, like these, across this tank of
0:22:40 > 0:22:45unspeakably hideous gunge into the prize zone beyond.
0:22:45 > 0:22:47This being Blast Lab, there is a twist.
0:22:47 > 0:22:49You may see that each team
0:22:49 > 0:22:54has a representative standing in this hideous gunge in the tank.
0:22:54 > 0:22:58Jed, Annabel, I hope you're comfortable. word of warning.
0:22:58 > 0:23:02This tape, very, very important, because I think something has moved
0:23:02 > 0:23:05in and made its home in this end of the tank.
0:23:05 > 0:23:09Late last night I saw bubbles. Oh, like that. Like that.
0:23:09 > 0:23:14I don't know what it is, but I saw teeth.
0:23:14 > 0:23:17Both of you, for your own safety, no further than that line of tape.
0:23:17 > 0:23:20The idea is to get the prize pods into the prize zone.
0:23:20 > 0:23:24Your jobs in there are to stop the opposing team's prize pods as
0:23:24 > 0:23:27they arc gracefully across the tank and to retrieve your own team's pods
0:23:27 > 0:23:30as they fall into the tank and put them in these baskets.
0:23:30 > 0:23:34The wining team will be the team that gets the most prize pods
0:23:34 > 0:23:36into the prize zone.
0:23:36 > 0:23:38And they will get to take home each of the prizes written
0:23:38 > 0:23:39on those prize pods.
0:23:39 > 0:23:43The losing team will get to blow their prizes up.
0:23:43 > 0:23:46Yellows are in the lead so you start first.
0:23:46 > 0:23:48You have a five-second advantage.
0:23:48 > 0:23:50When you hear the first siren you start.
0:23:50 > 0:23:52Reds, wait until the second siren.
0:23:52 > 0:23:54As soon as you hear that you start firing.
0:23:54 > 0:23:56You have some time to get as many
0:23:56 > 0:24:01prize pods as you can into the prize zone and that some time starts now!
0:24:01 > 0:24:04The Yellows are already making
0:24:04 > 0:24:07the most of their five-second head start.
0:24:07 > 0:24:10There's the second siren, the Reds are off.
0:24:10 > 0:24:13That's 2-0 to the Yellows.
0:24:13 > 0:24:18The Reds seem to be losing their heads and their helmets.
0:24:21 > 0:24:23A fumble from the Yellows there, that could cost them.
0:24:23 > 0:24:27And it's followed by a terrible shot. It's all going wrong.
0:24:27 > 0:24:30The Reds are in with a chance now.
0:24:30 > 0:24:33It is absolute mayhem out there.
0:24:36 > 0:24:39What's this?
0:24:39 > 0:24:43The Yellows have run out of pods to launch? And a score to the Reds.
0:24:43 > 0:24:48The Yellows are back in the game. It is raining prize pods out there.
0:24:48 > 0:24:51Hurry up, teams, time's running out. Or at least it might be.
0:24:51 > 0:24:55It's impossible to tell with my "some time" countdown clock.
0:25:00 > 0:25:03HOOTER
0:25:03 > 0:25:08OK, the end. That's it. That was quite busy, teams.
0:25:08 > 0:25:12We can safely say both teams worked pretty hard.
0:25:12 > 0:25:14It's now time to find out which team has won.
0:25:14 > 0:25:17The lab rats are counting out the prize pods.
0:25:17 > 0:25:21So, lab rat for the Red Team, how many have we got?
0:25:21 > 0:25:24Four. For the Yellows, how many have we got?
0:25:24 > 0:25:27Six! That mean's the Yellows are the winners.
0:25:27 > 0:25:30CHEERING
0:25:30 > 0:25:32Let's look at what they've won. Ready, Nan?
0:25:32 > 0:25:34Each of you will be taking home an MP3 player,
0:25:34 > 0:25:37a Doctor Who game.
0:25:37 > 0:25:40A Robopet.
0:25:40 > 0:25:42A brain-teaser jigsaw.
0:25:42 > 0:25:45A fizzing dinosaur egg.
0:25:45 > 0:25:47And flashing pogo stick.
0:25:47 > 0:25:50All of those for the Yellow team. Each of you taking those home.
0:25:50 > 0:25:54Reds, this is slightly less comfortable now,
0:25:54 > 0:25:58because these are the prizes that you would've won, but you haven't.
0:25:58 > 0:26:01- You'd have won a glider set each. - GROANS
0:26:01 > 0:26:05Oh, I know. A remote-control helicopter.
0:26:05 > 0:26:10A fizzing dinosaur egg and a Doctor Who game.
0:26:10 > 0:26:12Instead of which,
0:26:12 > 0:26:16you're going to blow them up because it's time for Bidet Goes Back.
0:26:24 > 0:26:27It's the strangest thing but the Yellow Team stand here
0:26:27 > 0:26:30behind their massive haul of prizes,
0:26:30 > 0:26:33looking quite happy and content. Well done for winning.
0:26:33 > 0:26:36The Reds are in a different frame of mind as they prepare to blow up
0:26:36 > 0:26:38their prizes. How are you feeling?
0:26:38 > 0:26:40- Happy!- Because there's gonna be an explosion?
0:26:40 > 0:26:42- Yeah.- OK, brothers.
0:26:42 > 0:26:44Who is going to push the plunger? I know the answer.
0:26:44 > 0:26:48- All of us.- All of you together. All three brothers. It's a
0:26:48 > 0:26:52touching scene, three young brothers about to explode their own prizes.
0:26:52 > 0:26:54When you're exploding things, it's best to do it in the bathroom
0:26:54 > 0:26:57because there is plenty of water to put out the flames.
0:26:57 > 0:27:00That's where I came up with my next invention, my exploding
0:27:00 > 0:27:03bidet. There it is, you see. So, are you ready?
0:27:03 > 0:27:06Lift the plunger into the firing position.
0:27:06 > 0:27:08Lift the plunger.
0:27:08 > 0:27:10OK, brothers.
0:27:10 > 0:27:14Five, four, three, two, one!
0:27:19 > 0:27:22There we go. They're all gone.
0:27:22 > 0:27:26Today, in the Blast Lab we've learned about water tension
0:27:26 > 0:27:29and while we could have done this by reading through my 20,000 word essay
0:27:29 > 0:27:33on the subject, we've done this by doing belly flops,
0:27:33 > 0:27:36dropping cars in pools then splashing around in my lab.
0:27:36 > 0:27:38See you next time!
0:27:38 > 0:27:41CHEERING
0:27:43 > 0:27:46Blast Lab was recorded in front of a live studio audience.
0:27:46 > 0:27:48No lab rats were hurt during filming.
0:27:48 > 0:27:50Probably. Well, not that much.
0:28:07 > 0:28:09Subtitles by Red Bee Media Ltd