0:00:38 > 0:00:40Well, keep going, come on.
0:00:40 > 0:00:41And...
0:00:43 > 0:00:45Stop! Well done. OK.
0:00:45 > 0:00:46That wasn't an experiment.
0:00:46 > 0:00:49That's just how I get to work every morning.
0:00:49 > 0:00:52You're one-hundredth of a second slower than yesterday. Try harder.
0:00:52 > 0:00:55Anyway, hello, I'm Richard Hammond.
0:00:55 > 0:00:56This is my Blast Lab.
0:01:02 > 0:01:04Yeah. In just a few moments,
0:01:04 > 0:01:09I shall be inviting two teams of top young scientists into the lab
0:01:09 > 0:01:11to take part in a series of science challenges.
0:01:11 > 0:01:13If they're successful, they win prizes.
0:01:13 > 0:01:16If they're unsuccessful, they win prizes,
0:01:16 > 0:01:20but they have to blow them up in a bidet. What's in store?
0:01:33 > 0:01:39Normally this lab is protected by an elite troop of SAS guards.
0:01:39 > 0:01:42They're not working today, they're on strike,
0:01:42 > 0:01:44because their jumpers are too itchy.
0:01:44 > 0:01:46Until we've found some softer fabrics for them,
0:01:46 > 0:01:51I'm being protected by a woman who makes mincemeat of her enemies
0:01:51 > 0:01:54and mince pies for their friends. She is my Ninja Nan.
0:02:05 > 0:02:07Hello, Ninja Nan. Thanks for standing in.
0:02:07 > 0:02:12I know she looks fragile, but she is a fully trained Ninja.
0:02:16 > 0:02:20Told you. Nan, if you'd like to take your place...
0:02:20 > 0:02:22Nan! Nan! Take your place in security.
0:02:22 > 0:02:24Thank you very much. There you go.
0:02:24 > 0:02:27Watch her move now, audience.
0:02:27 > 0:02:30Look at that. Look at that. There she goes.
0:02:30 > 0:02:31It's amazing, I know!
0:02:31 > 0:02:34They actually threw her out of WWE wrestling
0:02:34 > 0:02:36because she injured so many wrestlers
0:02:36 > 0:02:38there was no-one left to fight.
0:02:38 > 0:02:40Nan, are you in security yet?
0:02:40 > 0:02:42Have you got there? She has!
0:02:42 > 0:02:44Dragging her little Ninja trolley behind her.
0:02:44 > 0:02:47Yes, she's just a vision of safety, protection, security.
0:02:47 > 0:02:51Oh, that's a flask of tea.
0:02:51 > 0:02:53Nothing special, just tea.
0:02:53 > 0:02:56But she does like to weld the lid on to give herself a challenge.
0:02:56 > 0:02:59Still, she can settle down and enjoy that while we get on with things.
0:02:59 > 0:03:03Let's meet the bunch of people trying to get into my lab today.
0:03:03 > 0:03:04CHEERING
0:03:06 > 0:03:10Yes, everybody's very happy and excited but we don't know yet.
0:03:10 > 0:03:13They could be anybody trying to get into my top-secret lab.
0:03:13 > 0:03:14You say you're the Yellow Team,
0:03:14 > 0:03:17we've got some security checks to carry out first.
0:03:17 > 0:03:20Identify yourselves by name so I can check you off. You are?
0:03:20 > 0:03:22- Will.- Charles.- Jamie.
0:03:22 > 0:03:24Will, Charles and Jamie.
0:03:24 > 0:03:26Fair enough. Under 'hidden talent'
0:03:26 > 0:03:31it says here all three of you are going to sing a Cornish song.
0:03:31 > 0:03:36# And shall Trelawney live
0:03:36 > 0:03:42# Or shall Trelawney die
0:03:42 > 0:03:50# Here's 20,000 Cornish men will know the reason why. #
0:03:50 > 0:03:52Do you know?
0:03:55 > 0:03:58Do you know, that was strangely moving, I would say.
0:03:58 > 0:04:03Yes, you are cleared. Come into the Blast Lab. You are the Yellow Team.
0:04:07 > 0:04:11Yes, that confirmed it. Officially you are through security.
0:04:11 > 0:04:12Where have you come from?
0:04:12 > 0:04:16ALL: Cornwall! And we are the Surfing Scientists.
0:04:16 > 0:04:18Actions and everything!
0:04:18 > 0:04:22You needn't have bothered. You're the Yellow Team and that's that.
0:04:22 > 0:04:24Right, let's meet a bunch of people that claim to be
0:04:24 > 0:04:27the team you're playing against. Where are they?
0:04:27 > 0:04:29They say they are the Reds.
0:04:30 > 0:04:32OK, you say you're the Red Team.
0:04:32 > 0:04:35We can't let you in on your say-so. I need to check names first of all.
0:04:35 > 0:04:36You are?
0:04:37 > 0:04:40- Evie.- Keira.- Alana.
0:04:40 > 0:04:42Evie, Keira, Alana. Yes, fair enough.
0:04:42 > 0:04:45Hidden talent, it says all of you are going to do something. What?
0:04:45 > 0:04:47- We're going to do our evil laugh. - An evil laugh?
0:04:47 > 0:04:51I'll be the judge of whether it's evil or not. Go on, then.
0:04:51 > 0:04:55ALL: Mwah ha ha ha! Mwah ha ha ha!
0:04:55 > 0:04:57THEY COUGH
0:04:57 > 0:05:01Yes, there isn't a sense of real fear in the Blast Lab necessarily,
0:05:01 > 0:05:04but that will do. You are cleared for security.
0:05:04 > 0:05:06Come into the Blast Lab.
0:05:12 > 0:05:15Yep, you're through. You're definitely the Red Team.
0:05:15 > 0:05:17Where have you come from?
0:05:17 > 0:05:20ALL: London, and we are the Flying Lab Rats!
0:05:20 > 0:05:24No! You're the Red Team. Welcome to Blast Lab all the same. OK, teams.
0:05:24 > 0:05:28Reds and Yellows, get settled in and ready for the first game.
0:05:28 > 0:05:31To help us out let's bring in my exceedingly clever friend.
0:05:31 > 0:05:36He's like Einstein with windscreen wipers...and rust. It is Oliver.
0:05:56 > 0:06:01Oliver is fitted with the very latest state-of-the-art Fact Nav.
0:06:01 > 0:06:03In fact it was so easy to set up,
0:06:03 > 0:06:06that I installed it myself during my lunch break.
0:06:06 > 0:06:09I was actually still eating my lunch at the time, and as a result,
0:06:09 > 0:06:13I think some of it is wired up with spaghetti instead of wires.
0:06:13 > 0:06:17As a result, not all of the facts Oliver comes out with are true.
0:06:17 > 0:06:18Some are false.
0:06:18 > 0:06:21I need my teams to tell us which are true and which false.
0:06:21 > 0:06:25Oliver will let us know, because he does know everything.
0:06:25 > 0:06:26If it is true, he will say this.
0:06:26 > 0:06:29HONKING AND WHOOSHING
0:06:29 > 0:06:31And if it's false he will do this.
0:06:31 > 0:06:33FOGHORN
0:06:33 > 0:06:35OK. Simple enough rules, teams,
0:06:35 > 0:06:38and your first chance to earn points in Blast Lab.
0:06:38 > 0:06:40Everybody comfortable and happy?
0:06:40 > 0:06:43Good. Reds, you're going first. Here is your science fact.
0:06:43 > 0:06:46Is this true or false?
0:06:47 > 0:06:51Astronauts wear nappies under their spacesuits.
0:06:51 > 0:06:54Is that true or false? Have a chat, have a think.
0:06:54 > 0:06:57Audience, is that true or false?
0:06:57 > 0:06:59SHOUTS OF "TRUE" LOUDER THAN "FALSE"
0:07:00 > 0:07:02Quite a lot down here think it's false.
0:07:02 > 0:07:05I wouldn't necessarily listen to the audience.
0:07:05 > 0:07:09- Come up with your own idea. What conclusion have you come to?- True.
0:07:09 > 0:07:12Reds think it's true. Oliver, true or false?
0:07:12 > 0:07:13HONKING AND WHOOSHING
0:07:13 > 0:07:15True, well done!
0:07:15 > 0:07:17A point right away. They do wear nappies.
0:07:17 > 0:07:19NASA say it's called a maximum absorbency garment
0:07:19 > 0:07:23that's worn under the spacesuit to provide for the hygienic collection,
0:07:23 > 0:07:24storage and eventual transfer
0:07:24 > 0:07:27of waste discharge during extra-vehicular activities.
0:07:27 > 0:07:30But I think we all know what it's for. OK.
0:07:30 > 0:07:35Second question. This is the science fact for the Yellow Team.
0:07:35 > 0:07:38Just tell me whether this is true or false.
0:07:38 > 0:07:43Aluminium is the only metal that is a liquid at room temperature.
0:07:45 > 0:07:49Have a talk among yourselves and a think. Audience, true or false?
0:07:49 > 0:07:51SHOUTS OF "FALSE" LOUDER THAN "TRUE"
0:07:51 > 0:07:55Yeah, real division here. Quite a lot of listening to what the people
0:07:55 > 0:07:59next to you saying and changing yours to match!
0:07:59 > 0:08:02Let's see what the Yellows think. You have a point riding on this.
0:08:02 > 0:08:05They have a point already. This is your chance to make it equal.
0:08:05 > 0:08:07- False.- You think it's false.
0:08:07 > 0:08:09Oliver, true or false?
0:08:09 > 0:08:10FOGHORN
0:08:10 > 0:08:13It's false. That means you've equalised.
0:08:13 > 0:08:17Actually mercury is the only metal that is liquid at room temperature
0:08:17 > 0:08:19and it expands and contracts with temperature.
0:08:19 > 0:08:22That's why they use it to make thermometers and thermostats.
0:08:22 > 0:08:26Third question. This time it is an actual question, not a science fact
0:08:26 > 0:08:27and I need an answer from both teams.
0:08:27 > 0:08:30That's what I want you to write on the boards.
0:08:30 > 0:08:33It's not the easiest question necessarily, so I will give
0:08:33 > 0:08:37the point to the team that gets nearest the answer.
0:08:37 > 0:08:41How many golf balls are there on the moon?
0:08:41 > 0:08:45Have a chat, have a think. Audience, any theories about this?
0:08:45 > 0:08:48You can put your hand up if you have a theory.
0:08:48 > 0:08:51Right, I'll talk to you using my latest invention.
0:08:51 > 0:08:53You think it's a traffic cone,
0:08:53 > 0:08:55but very carefully using science in the lab,
0:08:55 > 0:08:57I've hidden a microphone in it.
0:08:57 > 0:09:00It's a micro-cone.
0:09:00 > 0:09:01Yes?
0:09:01 > 0:09:04I don't think that there are because they'd just float off.
0:09:04 > 0:09:08So we think none here. Any other answers?
0:09:08 > 0:09:11I think there's none because how would the golf balls go up?
0:09:11 > 0:09:13They would fall down from the sky.
0:09:13 > 0:09:16It would be quite a shot from here if you hit a golf ball
0:09:16 > 0:09:19and it landed on the moon. That would count as a hole-in-one.
0:09:19 > 0:09:22You could use the craters as holes. Yes?
0:09:22 > 0:09:23I think there's none.
0:09:25 > 0:09:30There's no gravity on there and it would fly into the sky.
0:09:30 > 0:09:33OK. Some good answers and great theories coming out.
0:09:33 > 0:09:36Audience, you haven't got points riding on this one,
0:09:36 > 0:09:38and these guys have. At the moment it's one-all.
0:09:38 > 0:09:41This will give one team or the other the lead.
0:09:41 > 0:09:43You've both come up with answers.
0:09:43 > 0:09:45Turn your boards round and let's have a look.
0:09:46 > 0:09:50What have we got from the Reds? 450!
0:09:50 > 0:09:54- You're going with the "golf is very popular on the moon" theory?- Yeah.
0:09:54 > 0:09:57OK. Yellows, you've gone for none.
0:09:57 > 0:10:00OK, there is some range in what we've got.
0:10:00 > 0:10:03The actual answer is...
0:10:03 > 0:10:04three.
0:10:04 > 0:10:08There are three golf balls on the moon. As the nearest to the answer,
0:10:08 > 0:10:11you are only three away even though you said none.
0:10:11 > 0:10:14The point goes to the Yellows.
0:10:15 > 0:10:19Do you want to know how they got there?
0:10:19 > 0:10:21Astronaut Alan Shepard hit two, and dropped one,
0:10:21 > 0:10:23when walking on the moon.
0:10:23 > 0:10:25One of the balls travelled 731 metres,
0:10:25 > 0:10:27he'd probably be quite pleased.
0:10:27 > 0:10:29When I said dropped one on the moon,
0:10:29 > 0:10:32I don't mean that was the first lunar guff.
0:10:32 > 0:10:35He dropped a golf ball, just to clarify.
0:10:35 > 0:10:38OK. Scores now. 2-1 to the Yellows.
0:10:54 > 0:10:57That is all to come. It's time to play Mini Science.
0:10:57 > 0:10:59This is the round where our teams conduct
0:10:59 > 0:11:01their own scientific experiment.
0:11:01 > 0:11:04To help me is my old scientific teacher Mini Miss.
0:11:06 > 0:11:07CHEERING AND APPLAUSE
0:11:07 > 0:11:10- Richard.- What? - I've told you before.
0:11:10 > 0:11:13If you want to talk, put your hand up.
0:11:13 > 0:11:14- Yes, Richard?- Sorry, Miss.
0:11:14 > 0:11:19Right. I should explain. Mini Miss is supposed to be 65.
0:11:19 > 0:11:23She is, but I was conducting a time travel experiment with Mini Miss,
0:11:23 > 0:11:26and I made a couple of basic mistakes,
0:11:26 > 0:11:28and now she looks like a ten-year-old.
0:11:28 > 0:11:30But you're still very smart, aren't you?
0:11:30 > 0:11:32Oh, yes. I'm a professor in nuclear physics,
0:11:32 > 0:11:36and I've been teaching for over 40 years. Yes, Richard?
0:11:36 > 0:11:38What's today's experiment, Miss?
0:11:38 > 0:11:42Today we're looking at surface tension,
0:11:42 > 0:11:44and the teams are going to make giant bubbles.
0:11:44 > 0:11:48One member from each team will be encased in the giant bubbles
0:11:48 > 0:11:51and the other two members will be making them.
0:11:51 > 0:11:52Yes, Richard.
0:11:52 > 0:11:55So which lab rat will be encased in the giant bubble?
0:11:55 > 0:11:56Which one?
0:11:56 > 0:12:00Alana and Charles. Fair enough.
0:12:00 > 0:12:02You two go and get ready.
0:12:02 > 0:12:04Miss? How does the game work?
0:12:04 > 0:12:07I've seen these two pools. I'm guessing they're involved.
0:12:07 > 0:12:10I'll show you. The team members to be covered in bubbles
0:12:10 > 0:12:13will stand in the middle of this pool of soapy water.
0:12:13 > 0:12:18The other team members have to dunk these hoops into the water
0:12:18 > 0:12:23and then raise them up over their team mate's head to make the bubble.
0:12:23 > 0:12:26So they are covered in a bubble. Teams, you will score a point
0:12:26 > 0:12:29every time you lift the hoop over your team member's head.
0:12:29 > 0:12:32There are three different sizes. You start with the smaller bubble
0:12:32 > 0:12:35then we will graduate up to a bigger bubble,
0:12:35 > 0:12:39and then a really massive bubble. There's a point available each time.
0:12:39 > 0:12:42The team at the end of this game with the most points
0:12:42 > 0:12:44scores a point towards their overall total.
0:12:44 > 0:12:47I'm going to allow each team three goes to get it right
0:12:47 > 0:12:49with each different size hoop.
0:12:49 > 0:12:51Can I explain the reason we're able to do this?
0:12:51 > 0:12:55It's because water is made up of tiny bits, molecules.
0:12:55 > 0:12:57They're attracted to each other.
0:12:57 > 0:13:00They like to hang out together. That's why we get surface tension.
0:13:00 > 0:13:02The water molecules sticking together
0:13:02 > 0:13:04is where the bubbles come from.
0:13:04 > 0:13:06If we put washing up liquid in,
0:13:06 > 0:13:09that changes the bonds between the molecules. It makes them stretchy,
0:13:09 > 0:13:11so they can stretch out and make a bubble.
0:13:11 > 0:13:15Given a chance it will always make the simplest and most stable shape,
0:13:15 > 0:13:17which is a sphere, a bubble.
0:13:17 > 0:13:20Even though this has square holes it will make round bubbles.
0:13:20 > 0:13:21They are all spherical.
0:13:21 > 0:13:24- Is that right, Miss? - Yes, that's right.
0:13:24 > 0:13:28- Excellent. Miss?- Yes.- Where have the other team mates gone?
0:13:28 > 0:13:32Um, I thought I'd make it a little more complicated
0:13:32 > 0:13:33and spike things up a bit.
0:13:40 > 0:13:44- Miss?- Mm?- You've dressed the other team members as hedgehogs,
0:13:44 > 0:13:48covered in spikes, that are going to be in the bubbles.
0:13:48 > 0:13:50That was thoughtful!
0:13:50 > 0:13:54That made it a lot easier! Teams, move forward to the bubble pool.
0:13:54 > 0:13:56Yellows, you are ahead at the moment.
0:13:56 > 0:14:00That does mean you get to choose whether you go first or second.
0:14:00 > 0:14:03- Which would you rather do? - Second? Second.
0:14:03 > 0:14:05Second. Why are you going second?
0:14:05 > 0:14:07I think I know why.
0:14:07 > 0:14:10So we can see how well they can do.
0:14:10 > 0:14:13You can learn from their experience. Reds, you're going first.
0:14:16 > 0:14:19Here we go, in your own time, with the first attempt.
0:14:19 > 0:14:22Right, they're counting down. Lifting, lifting.
0:14:22 > 0:14:25That didn't lift over the team mate's head.
0:14:30 > 0:14:31That was close.
0:14:31 > 0:14:35'This is very close, a tough one for the judges.'
0:14:35 > 0:14:38Adjudicators, Mini Miss and Lab Rat, are in charge.
0:14:38 > 0:14:41They judge competitions like this all over the world.
0:14:41 > 0:14:44Was that over the head of the team mate? It wasn't. I'm sorry, teams.
0:14:44 > 0:14:46That's OK, you've got another go.
0:14:49 > 0:14:50Go.
0:14:53 > 0:14:55That's a yes, that's a point for you! Well done.
0:14:57 > 0:15:01Yellows. The pressure's on. This is your first hoop.
0:15:04 > 0:15:09Good luck, hedgehog. And they're up, they're up, they're up.
0:15:09 > 0:15:12I'd say that clearly as well is a point, straight away.
0:15:12 > 0:15:14So we can move on. Well done, Yellows.
0:15:14 > 0:15:18'Look at that. All the way over Charles's head. Textbook bubbling!'
0:15:18 > 0:15:21It's not over yet, because there's a whole new hoop to try.
0:15:21 > 0:15:23Reds, you're going first again. Good luck, Reds.
0:15:26 > 0:15:29One, two, three.
0:15:29 > 0:15:32Doing the lifting for the red team. It looked like it was good,
0:15:32 > 0:15:35but it burst fairly early in the end.
0:15:37 > 0:15:40One, two, three.
0:15:40 > 0:15:41It's a good start.
0:15:41 > 0:15:44That was clearly a point for the Reds straight away! Well done.
0:15:47 > 0:15:50Confident play from the red team there. Yellows, good luck.
0:15:53 > 0:15:56Medium-sized hoop in the bubble lift. And they're up, they're up.
0:15:56 > 0:16:00A very different technique, but fantastically well done.
0:16:00 > 0:16:02That's a point straight away!
0:16:02 > 0:16:04Well, the Yellows there producing
0:16:04 > 0:16:06the best bubble yet in this competition.
0:16:08 > 0:16:11Reds, we are now on the biggest hoop.
0:16:16 > 0:16:18That really didn't work.
0:16:18 > 0:16:20Right, a final attempt, Reds.
0:16:20 > 0:16:24This size of bubble is really a whole new level of difficulty.
0:16:26 > 0:16:27Go.
0:16:27 > 0:16:29There was not even a bubble on that.
0:16:29 > 0:16:32I'm sorry, I'm sorry, Reds.
0:16:32 > 0:16:35No point there. Yellows, this is your chance.
0:16:35 > 0:16:38Steady start, but again...
0:16:39 > 0:16:42Steady ... again.
0:16:42 > 0:16:45Can anybody lift the bubble of this size?
0:16:45 > 0:16:47It's such a big ask. Good luck, team.
0:16:49 > 0:16:51Oh, sadly.
0:16:51 > 0:16:54I think the lift was messed up there.
0:16:54 > 0:16:57OK, that means the final score is a draw. That's a point for both teams.
0:16:57 > 0:17:00The score is 3-2 to the Yellows.
0:17:02 > 0:17:04Well done.
0:17:04 > 0:17:09So, those bubbles were big, and the biggest bubble was very, very hard.
0:17:09 > 0:17:12But surely there's got to be a limit anyway
0:17:12 > 0:17:13as to how big a bubble can be?
0:17:13 > 0:17:16There's only one way to find out. It's time to go large.
0:17:20 > 0:17:22Blowing bubbles is a lot of fun,
0:17:22 > 0:17:27but not as much fun as making great big bubbles.
0:17:27 > 0:17:30And even that is not as much fun as making a giant bubble wall,
0:17:30 > 0:17:35which just happens to be the speciality of this bubble expert.
0:17:35 > 0:17:38Hello, I am a bubble expert.
0:17:38 > 0:17:43So, let's see if he can encase my expendable bubble-blowing lab rat
0:17:43 > 0:17:49and everything else on this enormous platform in a giant wall of bubble.
0:17:49 > 0:17:54All he needs is some soapy water and some stretchy science.
0:17:54 > 0:17:58Adding soap to water changes the way it behaves.
0:17:58 > 0:18:01The soap slots in between the water molecules,
0:18:01 > 0:18:06weakening its surface tension and making the water stretchy.
0:18:06 > 0:18:10To make a giant bubble wall, the soapy water needs to be stretched
0:18:10 > 0:18:16over the lab rat before the water evaporates and the bubble pops.
0:18:16 > 0:18:20So, will my test lab rat be bubble rat?
0:18:20 > 0:18:21Hold the experiment right there,
0:18:21 > 0:18:24because there's another point up for grabs here, teams.
0:18:24 > 0:18:27The score right now, 3-2 to the Yellows.
0:18:27 > 0:18:30But I'll give another point to the team who can tell me correctly,
0:18:30 > 0:18:35will it work? Will our bubble expert be able to lift and hold a giant
0:18:35 > 0:18:38bubble over the lab rat and everything around him,
0:18:38 > 0:18:40all the spiky objects he had next to him?
0:18:40 > 0:18:42We've seen how difficult it is, have a talk, have a think
0:18:42 > 0:18:46amongst yourselves, teams. I'll ask the audience as well.
0:18:46 > 0:18:47Has anybody got any theories?
0:18:47 > 0:18:49I can come and talk to you
0:18:49 > 0:18:52using my amazing scientifically-designed micro-cone!
0:18:52 > 0:18:56It's a cone, and a microphone.
0:18:56 > 0:18:58I'm thinking of marketing it.
0:18:58 > 0:19:01Maybe not. Yes, over there. What do you think? Will it, won't it?
0:19:01 > 0:19:05I think he might be able to make it, seeing as he is a bubble expert.
0:19:05 > 0:19:08He'll be able to manoeuvre the bubble around the spiky objects.
0:19:08 > 0:19:10So you reckon he'll manoeuvre it around?
0:19:10 > 0:19:13Well, he did say bubble expert, didn't he?
0:19:13 > 0:19:17Then again, we did see for ourselves just how hard the giant bubbles are.
0:19:17 > 0:19:19Any theories down here? Yes, what do you think?
0:19:19 > 0:19:22I don't think they'll be able to get the bubble over,
0:19:22 > 0:19:24because when we just did the test,
0:19:24 > 0:19:26the big bubble that we just did didn't work.
0:19:26 > 0:19:28It never went higher than about that, did it?
0:19:28 > 0:19:30No, so I don't think it will work.
0:19:30 > 0:19:34OK. So we've got split opinions. Have you come to your decisions?
0:19:34 > 0:19:39- Yep.- You've made up your minds? Yellows? Will he do it, will he not?
0:19:39 > 0:19:42- No, he won't. - Reds, will he do it, will he not?
0:19:42 > 0:19:46- No.- No. OK, OK, fair enough. And the Yellows think...- No.
0:19:46 > 0:19:47Both teams thinking no.
0:19:47 > 0:19:48Let's have a look and find out.
0:19:49 > 0:19:51So, here we go.
0:19:51 > 0:19:55Everything is in position, and our expert and his massive bubble maker
0:19:55 > 0:19:57are about to go for the big one.
0:20:01 > 0:20:04It's a success! He has made a giant circular bubble
0:20:04 > 0:20:06all around my bathing lab rat.
0:20:06 > 0:20:08For a few seconds, at least.
0:20:11 > 0:20:12Thanks, bubble expert.
0:20:12 > 0:20:15We're impressed, even if that lab rat isn't.
0:20:17 > 0:20:21Well, he did it, which means no points for either side.
0:20:21 > 0:20:24There's a bit of an atmosphere descended on the red team here.
0:20:24 > 0:20:28Evie said yes, and everybody else said no.
0:20:28 > 0:20:31Did you all resolve your differences? Good.
0:20:31 > 0:20:33You'd better get them sorted out quickly,
0:20:33 > 0:20:35because it's time for us to move on.
0:20:35 > 0:20:38It's time for the Messy Messy Mess Test, which means both teams
0:20:38 > 0:20:42have to go off and get changed into a protective outfits. Away you go.
0:20:42 > 0:20:45At least the hedgehog costume comes off, which is a good thing!
0:20:45 > 0:20:46MACHINES GRIND TO HALT
0:20:46 > 0:20:48Yes, I know what's happened there.
0:20:48 > 0:20:50You see, I use a water wheel to power the whole lab,
0:20:50 > 0:20:53and sometimes the stream dries up and it stops!
0:20:53 > 0:20:55But don't worry, because I am prepared.
0:20:55 > 0:20:59I've been planning something. I have finally worked out a way
0:20:59 > 0:21:01to harness brainpower, and use it to power my lab.
0:21:01 > 0:21:03Lab rat, come here. Come here.
0:21:03 > 0:21:06The thing is, this system only works
0:21:06 > 0:21:08when the brain is at idle, doing nothing.
0:21:08 > 0:21:10It's the only way I could build it. Put it on.
0:21:10 > 0:21:13Because there's nothing in the world with the more idle brain
0:21:13 > 0:21:16than a lab rat. So, if you get that on your head, that's it.
0:21:16 > 0:21:20If I can arm the system now, it'll harness the power of his idle brain.
0:21:20 > 0:21:22MACHINES POWER UP
0:21:22 > 0:21:24Not a lot of power, obviously, but just about enough.
0:21:24 > 0:21:27As long as you don't do or think anything, which is the natural...
0:21:27 > 0:21:29No! Don't scratch your nose!
0:21:29 > 0:21:33That's too much for you. Just stay perfectly still. There you go.
0:21:33 > 0:21:36Right, it's time for us to move on to the Messy Messy Mess Test.
0:21:38 > 0:21:42Which today is the Bridge of Destiny.
0:21:42 > 0:21:44- DEEP VOICE:- The Bridge of Destiny.
0:21:44 > 0:21:47Yep. Your prizes, like an MP3 player, night vision goggles,
0:21:47 > 0:21:51a Bionic Copter, all need to be transported across the tank, teams.
0:21:51 > 0:21:55Obviously, because if they fall into the toxic gunge you're standing in,
0:21:55 > 0:21:57they'll all melt and be useless.
0:21:57 > 0:21:59To do this, you're going to need to construct
0:21:59 > 0:22:01your very own Bridge of Destiny.
0:22:01 > 0:22:03- DEEP VOICE:- The Bridge of Destiny.
0:22:03 > 0:22:05To move them from one side to another.
0:22:05 > 0:22:09All the pieces you need to build the bridge are in the tank with you.
0:22:09 > 0:22:13Hopefully that's all that is in the tank with you,
0:22:13 > 0:22:15although if anything brushes against your leg,
0:22:15 > 0:22:18don't worry, it's my piranhas. Did I say don't worry?
0:22:18 > 0:22:21I meant scream. Sorry. Try and jump out if you can.
0:22:21 > 0:22:24What you need to do then is burrow about in the lethal toxic gunge,
0:22:24 > 0:22:26find all the pieces you need to assemble your bridge
0:22:26 > 0:22:28before all your precious prize pods
0:22:28 > 0:22:32are lost for ever in the yawning chasm below your Bridge of Destiny.
0:22:32 > 0:22:35- HIGH-PITCHED VOICE: - The Bridge of Destiny.
0:22:35 > 0:22:39As soon as you've finished building your bridge, pull that lever,
0:22:39 > 0:22:40both teams have one.
0:22:40 > 0:22:43That will set off your car towing your trailer full of prizes
0:22:43 > 0:22:44across your bridge.
0:22:44 > 0:22:48If you're feeling really brave, you could anticipate when you finish
0:22:48 > 0:22:51and pull the lever a bit before, and hope you finish your bridge
0:22:51 > 0:22:53before the car gets there and falls in.
0:22:53 > 0:22:56Yellows. You're going to be starting first,
0:22:56 > 0:22:58cos you're ahead on points right now.
0:22:58 > 0:23:00That lead has won you a five-second advantage.
0:23:00 > 0:23:03When you hear the first siren, you start building your bridge.
0:23:03 > 0:23:06Reds, you wait until you hear the second siren,
0:23:06 > 0:23:07and then start building.
0:23:07 > 0:23:11It's a straight race to get your prize pods across the toxic tank,
0:23:11 > 0:23:12and that race starts...
0:23:12 > 0:23:14I dunno, now!
0:23:14 > 0:23:15SIREN
0:23:15 > 0:23:16There goes the first siren,
0:23:16 > 0:23:19and the Yellows trudge into the awful toxic gunge.
0:23:19 > 0:23:20SIREN
0:23:20 > 0:23:23That's the second siren to release the Reds.
0:23:23 > 0:23:27Now, it really is everyone for themselves in there.
0:23:27 > 0:23:30It's important to find your first piece of bridge quickly,
0:23:30 > 0:23:32without falling out with your team mate.
0:23:32 > 0:23:36Both teams are still trying to pull the right section of bridge
0:23:36 > 0:23:37that fits correctly.
0:23:37 > 0:23:39This game has been scientifically tested
0:23:39 > 0:23:42to cause an argument in any team in the world.
0:23:42 > 0:23:46I actually tested it here in the lab with three nuns playing,
0:23:46 > 0:23:49and it turned into a massive fight.
0:23:49 > 0:23:53MUSIC: "A Little Less Conversation" by Elvis Presley vs JXL
0:23:53 > 0:23:56The first piece is the hardest to find,
0:23:56 > 0:23:58as the Yellows seem to be finding out.
0:23:59 > 0:24:03And yes, it looks like the Reds are off the mark.
0:24:03 > 0:24:07But the Yellows are still struggling to find their first bit.
0:24:07 > 0:24:12And look at that! The Reds now have their second section in place.
0:24:12 > 0:24:15The Yellows really have to hurry up if they're going to win this one.
0:24:16 > 0:24:21And it looks like another wrongly fitting piece for the Yellows.
0:24:21 > 0:24:25The Reds not finding the correct section this time either.
0:24:25 > 0:24:28THEY CHANT FOR THEIR FAVOURITE TEAM
0:24:28 > 0:24:30But look, the Yellows are finally off the mark.
0:24:30 > 0:24:33This puts them right back in the hunt.
0:24:33 > 0:24:38The Reds respond with their third piece of the bridge in place.
0:24:38 > 0:24:41But back come the Yellows, their second piece.
0:24:41 > 0:24:45It's too close to call at this point.
0:24:45 > 0:24:47Reds need to respond quickly to that.
0:24:49 > 0:24:51Which they do! That is their fourth section.
0:24:54 > 0:24:56The Yellows, desperately searching for the next piece.
0:24:56 > 0:24:59But it could be too late.
0:25:01 > 0:25:04The Reds have found yet another section.
0:25:04 > 0:25:06Reds are down to the final two pieces,
0:25:06 > 0:25:09and they're working very well together as a team.
0:25:09 > 0:25:12The Yellows look like a beaten team at this point.
0:25:13 > 0:25:18In goes the final piece, and yes, down goes the lever.
0:25:18 > 0:25:20Away goes the red truck, and
0:25:20 > 0:25:23providing the bridge is good, the Reds have it.
0:25:23 > 0:25:26And across the finish line it goes.
0:25:26 > 0:25:29That's it.
0:25:29 > 0:25:33That's it, the race is over and Reds, you are the winners.
0:25:33 > 0:25:36You've got your prize pods on the other side of the tank. Well done.
0:25:36 > 0:25:37Let's look at what you've won.
0:25:37 > 0:25:39Ready, Nan?
0:25:39 > 0:25:42An MP3 player.
0:25:42 > 0:25:45Night vision goggles.
0:25:45 > 0:25:47Bionic Copter.
0:25:47 > 0:25:50Bop It game.
0:25:50 > 0:25:53Hulk Smash Hands.
0:25:53 > 0:25:55And a 20 Questions game. Congratulations, Red team!
0:25:55 > 0:25:57SCREAMING
0:25:57 > 0:26:00Oh, that's so loud.
0:26:00 > 0:26:03Yellows. Oh, shaking hands, that's nice.
0:26:03 > 0:26:04But it's OK, Yellows.
0:26:04 > 0:26:09Because here's the funny thing, you would have won exactly the same,
0:26:09 > 0:26:12but you're not taking it home, you're going to blow it up instead.
0:26:12 > 0:26:15Because it's time for Bidet Goes Bang.
0:26:22 > 0:26:25And so here we are, the time is upon us.
0:26:25 > 0:26:29- Red Team, you're looking quite chipper and happy.- Yeah.
0:26:29 > 0:26:30Funny, that. Well done.
0:26:30 > 0:26:33A huge wheelbarrow full of prizes for you to take home.
0:26:33 > 0:26:37Yellows, you're not taking your prizes home,
0:26:37 > 0:26:39you're blowing them up instead. How do you feel?
0:26:39 > 0:26:41- OK.- It's a silly question, really.
0:26:41 > 0:26:45OK? Not bad. Good. What went wrong?
0:26:45 > 0:26:48We just forgot where the pieces were,
0:26:48 > 0:26:51and we didn't work out where they should go.
0:26:51 > 0:26:53It's trickier than it looks, that one, isn't it?
0:26:53 > 0:26:54Who's gonna do the plunger?
0:26:54 > 0:26:58- All of us. - I think that's probably fair.
0:26:58 > 0:27:01OK, well unfortunately it is illegal, actually,
0:27:01 > 0:27:03to let the losing team go away with prizes,
0:27:03 > 0:27:05so they have to be legally exploded.
0:27:05 > 0:27:08As we know, the safest form of explosion is a bidet explosion.
0:27:08 > 0:27:12So there's no putting it off. Step forward and lift the plunger
0:27:12 > 0:27:14up to the firing position, if you would, please.
0:27:14 > 0:27:18There we go. We going to count you down. Are we ready?
0:27:18 > 0:27:22Five, four, three, two, one.
0:27:28 > 0:27:30There you go. Today we learned about surface tension.
0:27:30 > 0:27:32Most scientists would do this
0:27:32 > 0:27:35in a professional, controlled environment.
0:27:35 > 0:27:38Whereas we just dressed as hedgehogs and shoved a lab rat in a bath.
0:27:38 > 0:27:39See you next time.
0:27:39 > 0:27:41CHEERING AND APPLAUSE
0:27:46 > 0:27:50Blast Lab was recorded in front of a live studio audience.
0:27:50 > 0:27:55No lab rats were hurt during filming this programme. Probably. Who cares?
0:27:55 > 0:27:57Subtitles by Red Bee Media Ltd