0:00:34 > 0:00:37Right, I'm turning the machine up.
0:00:37 > 0:00:41Turning it up. Turning it up a bit more now. You'll be fine.
0:00:41 > 0:00:43Turning it up. Ooh. Arh. Yeah.
0:00:43 > 0:00:50Sorry. OK. Just experimenting with a lab rat, there.
0:00:50 > 0:00:53He'll be fine. Cross, but fine.
0:00:53 > 0:00:57Hello. I'm Richard Hammond. Welcome to my Blast Lab!
0:00:57 > 0:00:59APPLAUSE
0:00:59 > 0:01:04This is the science show for people who think science is boring.
0:01:04 > 0:01:09In a moment, we'll meet two teams of budding young scientists
0:01:09 > 0:01:13who'll compete in cutting-edge scientific experiments.
0:01:13 > 0:01:17The winning team will be win prizes. So will the losing team,
0:01:17 > 0:01:22but unfortunately, they have to blow theirs up in an exploding bidet.
0:01:22 > 0:01:25Let's see what's in store today...
0:01:36 > 0:01:41Now, obviously, with this being a super secret underground lab,
0:01:41 > 0:01:45I only use the very best to guard it.
0:01:45 > 0:01:47A crack SAS team.
0:01:47 > 0:01:50Funny thing though, they turned up to work this morning
0:01:50 > 0:01:55and they were all wearing the same thing - green camouflage.
0:01:55 > 0:01:58Embarrassing, so they've gone to get changed,
0:01:58 > 0:02:02but I have a replacement - a one-woman fighting machine.
0:02:02 > 0:02:07A woman who can fight a man with one finger in slippers and a hairnet.
0:02:07 > 0:02:11Her, not the man, obviously. She is my Ninja Nan!
0:02:11 > 0:02:14APPLAUSE
0:02:19 > 0:02:20Ninja Nan.
0:02:20 > 0:02:23Thanks for standing in.
0:02:23 > 0:02:28I know she may look fragile, but she is in fact a fully trained ninja.
0:02:31 > 0:02:36Yeah. There you go. Nan, take your place in security.
0:02:36 > 0:02:39Oh, her batteries have gone again. Nan! Thank you.
0:02:39 > 0:02:44If you'd like to take your place in security and look after things.
0:02:44 > 0:02:47There she goes. Look at her move.
0:02:47 > 0:02:51Look at the speed. Ninja Nan, are you settled in yet?
0:02:51 > 0:02:52Oh, there she goes, look.
0:02:52 > 0:02:56Yes. With her little ninja shopping trolley behind her.
0:02:56 > 0:03:01Getting settled in. Oh, what's she after? It'll be her food for later.
0:03:01 > 0:03:06Oh, yes, that's a rock cake, but being a ninja, it's real rock.
0:03:06 > 0:03:09Only Ninja Nan can cope with that.
0:03:09 > 0:03:14Right. Let's meet the people who are trying to get into my lab today.
0:03:17 > 0:03:22Now, let's not get all giddy. They say they're the Yellow Team.
0:03:22 > 0:03:26They've got the right lab coats on, but they could be anybody.
0:03:26 > 0:03:31We have to be careful of security. This lab is top secret.
0:03:31 > 0:03:35- Identify yourselves by name, please. - Megan.- Shekeera.- Alex.
0:03:35 > 0:03:39Megan, Shekeera, Alex. Yes. That checks out with what I've got.
0:03:39 > 0:03:44What hidden talent will you demonstrate to prove who you are?
0:03:44 > 0:03:48This is Alex who's going to do baton twirling, it says here.
0:03:48 > 0:03:51It's a baton and it's twirling. What do we reckon?
0:03:51 > 0:03:56Yeah? All right. OK. That's it. You are the Yellow Team.
0:03:56 > 0:03:59Come through. You're cleared through security.
0:03:59 > 0:04:02APPLAUSE
0:04:03 > 0:04:06That confirms then that you are our Yellow Team.
0:04:06 > 0:04:12- Welcome. Where have you come from? - Norwich, and we're Team Sam.
0:04:12 > 0:04:16That's your own name. You didn't need that. Yellow Team, welcome.
0:04:16 > 0:04:21We're gonna meet the people who claim to be your opponents.
0:04:21 > 0:04:23APPLAUSE
0:04:25 > 0:04:29You've got the right lab coats. You say you're the Red Team.
0:04:29 > 0:04:34- Prove it. Identify yourselves by name, please.- Stan.- Louis.- Dan!
0:04:34 > 0:04:39Wow. Stan, Louis and Dan. That's right. Hidden talent...
0:04:39 > 0:04:43It's Louis. What will you do to prove... What are you doing?
0:04:43 > 0:04:44HE MOUTHS SILENTLY
0:04:44 > 0:04:49- What are you doing? Speak up. - Miming.- Can't be a mime, you spoke.
0:04:49 > 0:04:54It does say miming here and that is miming. Come through security.
0:04:54 > 0:04:57You're clear past Ninja Nan.
0:04:59 > 0:05:04Are we not too well today, Dan? Have you brought germs into my Blast Lab?
0:05:04 > 0:05:07If you get any in that tank behind you,
0:05:07 > 0:05:11overnight they mutate and they come out this big, with pincers.
0:05:11 > 0:05:16Don't cough near there. Red Team. Welcome. Where have you come from?
0:05:16 > 0:05:19Cornwall. And we're the Randomers.
0:05:19 > 0:05:23Good name but useless. The Red Team will do for today.
0:05:23 > 0:05:26Both teams, get ready for round one.
0:05:26 > 0:05:28Go over there and get settled in.
0:05:28 > 0:05:33I love cars and science, and here's something that's a bit of both.
0:05:33 > 0:05:37He's a smooth ride with a sharp mind. My best friend, Oliver.
0:05:53 > 0:05:58Oliver is fitted with the very latest hi-tech facts nav.
0:05:58 > 0:06:00I should know because I fitted it.
0:06:00 > 0:06:03As a result, it doesn't always work.
0:06:03 > 0:06:07Some of its facts are wrong, some are right.
0:06:07 > 0:06:10I want my teams to tell me which is which first.
0:06:10 > 0:06:14Oliver will confirm it. If it's true, he'll do this...
0:06:14 > 0:06:16SIREN BLARES AND HORN BEEPS
0:06:16 > 0:06:19And he'll let us know if it's false by doing this...
0:06:19 > 0:06:21FOGHORN BLARES
0:06:21 > 0:06:24Couldn't be simpler rules. Are we happy?
0:06:24 > 0:06:28This is your first chance to earn points. Ready for a science fact?
0:06:28 > 0:06:32Red Team, your first chance to earn a point.
0:06:32 > 0:06:37I'm trying to make you nervous. Is it working? No. You look relaxed.
0:06:37 > 0:06:41- I'm a bit nervous.- You are?- No. 'Course not.- OK. Here's your fact...
0:06:41 > 0:06:47Lightning strikes somewhere on Earth ten times per minute.
0:06:47 > 0:06:49Is that true or false? Have a chat.
0:06:49 > 0:06:53You never know what one of you might know. I'll ask the audience.
0:06:53 > 0:06:56Lightning strikes somewhere ten times a minute. True or false?
0:06:56 > 0:06:57What do we think?
0:06:57 > 0:06:59AUDIENCE SHOUT
0:07:02 > 0:07:04Some true. Some false. Bit of a mix there.
0:07:04 > 0:07:06Bit of a mix over here as well.
0:07:06 > 0:07:09OK. Reds, have we come to a conclusion?
0:07:09 > 0:07:11If you can all agree on an answer.
0:07:11 > 0:07:16- False.- Louis, are you going to be spokesperson?- False.- False.
0:07:16 > 0:07:18Oliver, is it true or false?
0:07:18 > 0:07:20FOGHORN BLARES
0:07:20 > 0:07:22It's false. Well done. That's a point for you.
0:07:22 > 0:07:24CHEERING
0:07:24 > 0:07:27It actually strikes - I've got the figures here -
0:07:27 > 0:07:326,000 times per minute, which is 100 times a second, which equates to
0:07:32 > 0:07:348,640,000 times a day.
0:07:34 > 0:07:36Right. Yellow Team, here is your science fact.
0:07:36 > 0:07:39Tell me whether this is true or false.
0:07:39 > 0:07:41Have a think about it before you give your answer.
0:07:41 > 0:07:44The average pencil lead can draw a line
0:07:44 > 0:07:49over 200 metres long before it runs out.
0:07:49 > 0:07:53Have a talk. Have a think. Have a think. Don't let me rush you.
0:07:53 > 0:07:57- Audience, true or false? - AUDIENCE SHOUTS
0:07:58 > 0:08:00Mostly true there, I think,
0:08:00 > 0:08:02but don't go too much by what the audience think.
0:08:02 > 0:08:06- What do you think?- False.- False. Oliver, is it true or false?
0:08:06 > 0:08:08FOGHORN BLARES
0:08:08 > 0:08:10- It's false. - CHEERING
0:08:10 > 0:08:12There you go.
0:08:12 > 0:08:15The longest pencil in the world was created by Faber-Castell in 2002.
0:08:15 > 0:08:18It was 19.75 metres long.
0:08:18 > 0:08:2180 centimetres in dia... You're not interested in this, are you?
0:08:21 > 0:08:26The average pencil lead could draw a line about 35 miles long.
0:08:26 > 0:08:29What do you think about that? So that's how false that was.
0:08:29 > 0:08:33Or 45,000 words, if you wanted to wear one out.
0:08:33 > 0:08:36- Shall I just ask you the questions? - Yeah.- OK.
0:08:36 > 0:08:39Here is your third question. This works differently -
0:08:39 > 0:08:42it isn't true or false. This is one I need you to answer.
0:08:42 > 0:08:44Write it on the boards in front of you.
0:08:44 > 0:08:48How many moons does the planet Uranus have?
0:08:48 > 0:08:52How many moons does Uranus have? Think while I talk to the audience.
0:08:52 > 0:08:55Anybody know the answer to that, or would want to hazard a guess?
0:08:55 > 0:09:00I can come and ask you by using my new invention, boot-mike.
0:09:00 > 0:09:03- Talk into it. It's a microphone. - Nine.
0:09:03 > 0:09:05- Nine.- 17.
0:09:05 > 0:09:0617. Just talk to the boot.
0:09:06 > 0:09:10Any astronomers? Anybody actually look at things through telescopes?
0:09:10 > 0:09:11- Do you?- Yeah. 20.
0:09:11 > 0:09:15- 20. OK. We're getting a real ballpark figure here. Yes.- Three.
0:09:15 > 0:09:18Three. That's quite a range established by a young man here.
0:09:18 > 0:09:22OK. Audience, I'll take some from here, finally. Yeah.
0:09:22 > 0:09:24- 72.- Woah! Now we've got three to 72.
0:09:24 > 0:09:26- This is more like it.- 12?- OK.
0:09:26 > 0:09:30We've got three to 72 and just about all the numbers in-between.
0:09:30 > 0:09:34All facts gathered in with the use of my handy boot-mike,
0:09:34 > 0:09:38which is not impressing anybody in the Blast Lab today.
0:09:38 > 0:09:40You've both written down answers.
0:09:40 > 0:09:44Let's have a look at what you've got. Turn your boards round, please.
0:09:44 > 0:09:45For the Red Team...
0:09:45 > 0:09:48For the yellow team... That's quite spooky.
0:09:48 > 0:09:52You conducting your own experiment and doing ESP in my Blast Lab?
0:09:52 > 0:09:56That's quite a coincidence. Right. Here's the real answer. It is...
0:09:56 > 0:09:5927...that we know of. Scientists think there may be more.
0:09:59 > 0:10:01As you've both got the same answer,
0:10:01 > 0:10:04you're both furthest and closest to the real answer,
0:10:04 > 0:10:06but I'm feeling generous.
0:10:06 > 0:10:08I'll give both teams a point.
0:10:08 > 0:10:10CHEERING
0:10:19 > 0:10:21CHEERING AND APPLAUSE
0:10:23 > 0:10:26That is all to come, but right now, it's time for Mini Science,
0:10:26 > 0:10:29where our teams get to use household objects
0:10:29 > 0:10:32to conduct extraordinary science experiments.
0:10:32 > 0:10:35Now, my old school science teacher
0:10:35 > 0:10:38accidentally ended up as a ten-year-old
0:10:38 > 0:10:41during an experiment with time travel. Yes.
0:10:41 > 0:10:43She's teaching at the local school,
0:10:43 > 0:10:45but she is the only teacher ever to get a detention
0:10:45 > 0:10:49after one of her own colleagues mistook her for one of her class.
0:10:49 > 0:10:52So she's not in a very good mood with me. And it is Mini Miss.
0:10:52 > 0:10:55CHEERING
0:10:58 > 0:11:00- Hello, Miss.- Hello, Richard.
0:11:00 > 0:11:02Hello. What are we doing today?
0:11:02 > 0:11:05- We're going to be looking at air particles.- Brilliant.
0:11:05 > 0:11:07But Miss, air particles are tiny.
0:11:07 > 0:11:10There's billions of them, and we can't...
0:11:10 > 0:11:11I can't see that one. I can't...
0:11:11 > 0:11:13I can't see them anywhere.
0:11:13 > 0:11:16- How can we look at them?- Cos we're not looking at the particles.
0:11:16 > 0:11:19We look at the effect it has on everything else.
0:11:19 > 0:11:23Well, we're going to be looking at them in a game called Ping Pong Pass.
0:11:23 > 0:11:26The aim of the game is to get the most amount of balls
0:11:26 > 0:11:28from these buckets to the cylinders
0:11:28 > 0:11:31using the flow of air from the hairdryers.
0:11:31 > 0:11:33Each team member stands in a zone,
0:11:33 > 0:11:36and the ball should be passed from one to the other,
0:11:36 > 0:11:38using the hairdryers.
0:11:38 > 0:11:42OK. So they can't use their hands for this, then?
0:11:42 > 0:11:44- No. Well, they have to hold the hairdryers.- Yes, Miss.
0:11:44 > 0:11:48So they have to hold the hairdryer, but they can't touch the ball.
0:11:48 > 0:11:50That must move in the flow from one to another.
0:11:50 > 0:11:55All right, teams, so you know what you've got to do. Sounds tricky.
0:11:55 > 0:11:56Let's find out if it is.
0:11:56 > 0:12:01You've got some time to do this, and that some time starts...
0:12:02 > 0:12:03..just then.
0:12:03 > 0:12:05CHEERING AND APPLAUSE
0:12:10 > 0:12:12AUDIENCE SHOUT
0:12:18 > 0:12:20It is air particles making this possible.
0:12:20 > 0:12:22I can demonstrate with my hairdryer here.
0:12:22 > 0:12:24Now, if I set it going,
0:12:24 > 0:12:27the ball isn't balancing...
0:12:27 > 0:12:28on top of the column of air.
0:12:28 > 0:12:30It's actually held within it,
0:12:30 > 0:12:31and I can demonstrate
0:12:31 > 0:12:33by putting smoke through it.
0:12:33 > 0:12:34If you put the smoke in,
0:12:34 > 0:12:37you can see the fast-moving stream of smoke
0:12:37 > 0:12:38in the middle.
0:12:38 > 0:12:39All the particles there
0:12:39 > 0:12:41are getting spaced out further apart.
0:12:41 > 0:12:43The air around the outside
0:12:43 > 0:12:45that you can see in the smoke there,
0:12:45 > 0:12:46is where these air particles
0:12:46 > 0:12:48are rushing to replace them,
0:12:48 > 0:12:50and they're holding the ball in place.
0:12:50 > 0:12:53And this effect is why you can tilt it. Look!
0:12:53 > 0:12:54It's not balancing,
0:12:54 > 0:12:57it's being held in place by air pressure,
0:12:57 > 0:12:58by particles moving in.
0:12:58 > 0:13:01Fire fighters use air particles, if you like -
0:13:01 > 0:13:04when there's a fire in the room, they use a fan
0:13:04 > 0:13:06to push a load more air into the room
0:13:06 > 0:13:07and all those particles
0:13:07 > 0:13:09take up all the space
0:13:09 > 0:13:11and they push the smoke out of the room.
0:13:11 > 0:13:15Clever things, air particles. Let's see how they're doing.
0:13:18 > 0:13:20Stan dunking one for the Reds.
0:13:20 > 0:13:23Shekeera doing the same for the Yellows.
0:13:24 > 0:13:27Oh, a dropped ball for the Reds.
0:13:29 > 0:13:31Yellows going for a changeover.
0:13:31 > 0:13:32Oh, no, not this time.
0:13:34 > 0:13:37Stan, again scoring for the Reds.
0:13:37 > 0:13:40And Shekeera...
0:13:40 > 0:13:42likewise for the Yellows.
0:13:42 > 0:13:44It is anybody's game at this point.
0:13:48 > 0:13:52Oh, and Stan's missed one for the Reds.
0:13:54 > 0:13:59OK. Teams, that is it. Time is up. Time is up.
0:14:01 > 0:14:04Well, let's find out who's won.
0:14:04 > 0:14:06Stan, did you get it in as he said, "One"?
0:14:06 > 0:14:09That was the closest I've ever seen at the end of the game.
0:14:09 > 0:14:13Five, four, three, two, one, it went in, so we'll allow that.
0:14:13 > 0:14:14Right. Let's see which team has won.
0:14:14 > 0:14:18Lab rats, count them up, please. Bear with us, audience.
0:14:18 > 0:14:20They're operating at the absolute limit
0:14:20 > 0:14:24of their capabilities right now, counting stuff.
0:14:24 > 0:14:26OK. Lab rat, over here.
0:14:26 > 0:14:29How many for the Reds? Six. Six for the Reds.
0:14:29 > 0:14:31Let's see how the Yellows have done.
0:14:31 > 0:14:33Lab rat, how many for the Yellows? Three.
0:14:33 > 0:14:35The Reds have won. Well done!
0:14:35 > 0:14:39That makes the score three-two to the Reds. Well done.
0:14:39 > 0:14:43Another point for the Red Team. So, we've just seen fast moving air
0:14:43 > 0:14:47holding something when the air's moving this way holds it there.
0:14:47 > 0:14:50I wonder, if the air was faster and the object was larger,
0:14:50 > 0:14:54could you use it to support an object this way?
0:14:54 > 0:14:56I'm talking about flying.
0:15:02 > 0:15:04Driving a go-kart can be a lot of fun.
0:15:06 > 0:15:09Cruising around the track with the wind in your hair
0:15:09 > 0:15:10and not a care in the world.
0:15:10 > 0:15:16But imagine if you could fly above the track.
0:15:19 > 0:15:22We've called in this paragliding expert,
0:15:22 > 0:15:25or as he likes to be known, a wind commander.
0:15:25 > 0:15:28Hello. I'm a wind commander.
0:15:28 > 0:15:30He's brought his paraglider
0:15:30 > 0:15:32to help turn our petrol-powered go-kart
0:15:32 > 0:15:36into a magnificent wind-powered flying machine.
0:15:38 > 0:15:41The paraglider works because as it's pulled along,
0:15:41 > 0:15:44air rushes over and under its curved shape.
0:15:44 > 0:15:47The theory goes that air flowing over the curve
0:15:47 > 0:15:52becomes more spread out than air flowing under it.
0:15:52 > 0:15:55The air that's less spread out pushes against the paraglider
0:15:55 > 0:15:58and should lift it and the go-kart up.
0:15:59 > 0:16:02However, if the air is not flowing fast enough,
0:16:02 > 0:16:05this push won't be strong enough to lift the paraglider
0:16:05 > 0:16:09and our go-kart will be as airborne as...an elephant.
0:16:16 > 0:16:19He's going to attach his paraglider on to the go-kart
0:16:19 > 0:16:22and attempt to use the thrust from the engine
0:16:22 > 0:16:25combined with the upwards force of the paraglider
0:16:25 > 0:16:27to make the go-kart fly through the air.
0:16:27 > 0:16:30If he can pull this off, it'll be a world first.
0:16:32 > 0:16:35Good luck, wind commander.
0:16:35 > 0:16:39Hold the experiment because I think there's an extra point in this.
0:16:39 > 0:16:43Score right now is three-two, but there's an extra point for the team
0:16:43 > 0:16:47that can tell me correctly, will the go-kart fly or not?
0:16:47 > 0:16:50What do we think? Have a chat amongst yourselves, both teams.
0:16:50 > 0:16:52Going to ask you both for an answer.
0:16:52 > 0:16:56Will it fly or not? Audience, any ideas? Will it fly or not?
0:16:56 > 0:17:00Hang on. I tell you what, I'll get my microphone boot.
0:17:00 > 0:17:02What do you reckon?
0:17:02 > 0:17:04Depends what the CC of the engine is.
0:17:04 > 0:17:09- So it depends on power.- It depends on power and it depends on weight.
0:17:09 > 0:17:12If it's a lot of power and not much weight it will give you what?
0:17:12 > 0:17:15- It will give you speed.- Yeah.
0:17:15 > 0:17:17- And that might make a difference.- Yeah.
0:17:17 > 0:17:21It depends if the bottom's covered or if there's holes in the bottom.
0:17:21 > 0:17:26- Of the go-kart?- Yes. - The aerodynamics could affect it.
0:17:26 > 0:17:29- Yeah.- The wind, as well. If there's like a wind against...
0:17:29 > 0:17:33That's a point. Cos if we're trying to get fast-moving air
0:17:33 > 0:17:36by driving that way, but the air's moving that way with us,
0:17:36 > 0:17:37it'll cancel it out.
0:17:37 > 0:17:40But if the air's moving that way, it's like going faster.
0:17:40 > 0:17:44This is the clever corner. I've had enough of talking to you.
0:17:44 > 0:17:48Right. That's good theories though, guys, really good theories.
0:17:48 > 0:17:50Any other theories? Will it work or will it not?
0:17:50 > 0:17:55I don't think it will because I don't think the up-thrust
0:17:55 > 0:18:01will be strong enough to pull the go-kart and a person up because
0:18:01 > 0:18:05gravity will prob...probably be...
0:18:05 > 0:18:09stronger than the up-thrust.
0:18:09 > 0:18:13So, the mass, the weight, of the go-kart and the rider,
0:18:13 > 0:18:16they won't go enough lift... from that wind.
0:18:16 > 0:18:19- OK. So you're thinking not.- No.- OK.
0:18:19 > 0:18:23So the audience are pretty unanimous on this one.
0:18:23 > 0:18:26Right. Teams, have you come up with your answers?
0:18:26 > 0:18:30- So, Reds, your answer, what do you think?- Yes.
0:18:30 > 0:18:33- You think it's going to work.- Yeah.
0:18:33 > 0:18:37- OK. Yellows?- Yeah.- You think it's going to work, as well.
0:18:37 > 0:18:41OK. Only one way to find out and settle this one.
0:18:41 > 0:18:43Carry on with the experiment.
0:18:47 > 0:18:50Here he goes. Let's see if he can make this baby fly.
0:18:52 > 0:18:56The front wheels are off the ground but now they're back down again.
0:18:56 > 0:19:00He nearly did it that time, but he's driven into the grass. Again.
0:19:04 > 0:19:07Well, he's certainly not giving up easily, is he?
0:19:11 > 0:19:17He seems to think he's flying, but I'm sure we can all agree he's not.
0:19:18 > 0:19:21- It was four wheels, wasn't it?- No.
0:19:21 > 0:19:25So there we go. Afraid no points for either team. It didn't work.
0:19:25 > 0:19:28Should have known. Lab rats involved.
0:19:28 > 0:19:30That's cough's not getting better, Dan.
0:19:30 > 0:19:33Must be a lab rat can mend that for you. Right.
0:19:33 > 0:19:34Both teams, you now have to go off
0:19:34 > 0:19:37and get ready for Messy Messy Mess Test.
0:19:37 > 0:19:39Believe me, you need your protective outfits.
0:19:39 > 0:19:42So if you'd like to go away and get ready for that.
0:19:42 > 0:19:45I just think it might be worth our while, audience,
0:19:45 > 0:19:49while they're getting ready, finding out why it didn't work.
0:19:50 > 0:19:53A go-kart is powered by its turning wheels,
0:19:53 > 0:19:58rather than having a huge powerful fan at the back like a jet engine.
0:19:58 > 0:20:00So in order to maintain its thrust,
0:20:00 > 0:20:03its wheels need to stay on the track.
0:20:03 > 0:20:07When it lifts off the ground, that thrust is lost and the rush of air
0:20:07 > 0:20:10needed to make the paraglider work disappears.
0:20:11 > 0:20:15Hang on, it looks like... yes, it looks like he's done it.
0:20:15 > 0:20:19Oh, hold on a minute. No. He's just being carried off the track.
0:20:20 > 0:20:22That was rubbish. Give us back that badge.
0:20:26 > 0:20:28So, there you go. Right. It's time for us all
0:20:28 > 0:20:30to move on to the Messy Messy Mess Test...
0:20:33 > 0:20:37..which today is in the septic tank.
0:20:37 > 0:20:41This is full of just mind-bogglingly awful stuff.
0:20:41 > 0:20:44It's where all the waste from my experiments ends up.
0:20:44 > 0:20:47So...comfortable in there? Don't worry, though.
0:20:47 > 0:20:51One thing I can promise you, there's no creepy crawlies in there.
0:20:51 > 0:20:55All the rats ate them. So, you'll be absolutely fine.
0:20:55 > 0:20:58As well as rats in there, there are these. Discs.
0:20:58 > 0:21:00Some are like this one. Duds.
0:21:00 > 0:21:04But the ones you're after are these, as modelled by my lab rats.
0:21:04 > 0:21:08They feature your team's colour and the names of prizes.
0:21:08 > 0:21:11Now, there'll be things like multimedia MP3 player,
0:21:11 > 0:21:14a wind-powered helicopter or a Blood, Bones And Body kit.
0:21:14 > 0:21:17Our teams have to get as many of these discs from the septic tank
0:21:17 > 0:21:21full of just the worst stuff you can imagine in to the baskets.
0:21:21 > 0:21:24We've got one for the Yellow Team, one for the Red Team.
0:21:24 > 0:21:28The winning team is the one to get the most prize discs
0:21:28 > 0:21:29out of there and in to there.
0:21:29 > 0:21:33And they will get to take home all the prizes written on the discs.
0:21:33 > 0:21:37The losing team doesn't take the prizes home.
0:21:37 > 0:21:39They have to blow them up in a bidet.
0:21:39 > 0:21:43OK. You have some time to get as many discs from the septic tank
0:21:43 > 0:21:44to the baskets as possible.
0:21:44 > 0:21:47Red Team, you're ahead on points.
0:21:47 > 0:21:49Those have bought you a five-second advantage,
0:21:49 > 0:21:52so when you hear the first siren, Red, you start.
0:21:52 > 0:21:55But Yellows, pay attention and listen carefully.
0:21:55 > 0:21:57As soon as you hear the second siren,
0:21:57 > 0:22:00that's your cue to start looking for those prize discs.
0:22:00 > 0:22:05OK. You have some time. And that some time starts...now!
0:22:05 > 0:22:11And away go the Reds. They're not afraid to get stuck in to the muck.
0:22:11 > 0:22:13There goes the second siren to release the Yellows.
0:22:16 > 0:22:19The Reds already have one prize disc in their net.
0:22:19 > 0:22:21The Yellows bagged their first one.
0:22:24 > 0:22:26ALARM GOES OFF
0:22:28 > 0:22:30Oh! Oh, yeah.
0:22:30 > 0:22:32I've done it again. I forgot to tell them
0:22:32 > 0:22:35that every now and again, some more hideous gunge
0:22:35 > 0:22:39comes down those pipes and tends to land on your head.
0:22:39 > 0:22:42I think they've found that out now, but sometimes,
0:22:42 > 0:22:46it does bring prize discs with it, so I think in the long run,
0:22:46 > 0:22:49they'll be pleased...ish.
0:22:51 > 0:22:56I really should look into my lab's drainage system.
0:22:56 > 0:22:59It is a festival of gunge in there.
0:22:59 > 0:23:04The Yellows look to be getting into their stride now,
0:23:04 > 0:23:06scooping up prize discs all over the place.
0:23:09 > 0:23:14Louie's lost his hat. Not good as it's raining gunge and prize discs.
0:23:14 > 0:23:19I'll be honest, I'm not sure how the gunge has turned brown.
0:23:19 > 0:23:24Another one for the Reds, there. Stan's checking for any duds.
0:23:24 > 0:23:26It's a good tactic, that.
0:23:26 > 0:23:29Yellows need to hurry up cos the Reds have the edge at the moment.
0:23:29 > 0:23:33Alex slam dunks two prize discs.
0:23:38 > 0:23:39Just in time.
0:23:39 > 0:23:41CHEERING AND APPLAUSE
0:23:41 > 0:23:43That is it, teams. Time is up.
0:23:43 > 0:23:45Nice in there, isn't it?
0:23:45 > 0:23:48Yeah. You've really been swimming in there, haven't you? OK.
0:23:48 > 0:23:53Sorry about not warning you about the pipes. I forgot. Always do.
0:23:53 > 0:23:57Right. Lab rats are counting up the prize discs right now as I speak.
0:23:57 > 0:24:00So, for the Red Team, lab rat, how many have the reds got?
0:24:00 > 0:24:02Show me with your little paws.
0:24:02 > 0:24:04Eight prize discs for the Reds.
0:24:04 > 0:24:05And now for the Yellows.
0:24:05 > 0:24:08Lab rat, how many do we have?
0:24:08 > 0:24:11Seven. It was so close. It's the Red team that win.
0:24:11 > 0:24:13CHEERING AND APPLAUSE
0:24:15 > 0:24:18Well done, Reds. Well done, Reds.
0:24:18 > 0:24:21All of these prizes are yours. Let's have a look.
0:24:21 > 0:24:25You're each taking home each of the prizes. Ready, Ninja Nan?
0:24:25 > 0:24:28A toxic mutant.
0:24:28 > 0:24:30A flying windcopter.
0:24:30 > 0:24:32Planetarium.
0:24:32 > 0:24:35Blood, Bones, Body Bits kit.
0:24:35 > 0:24:38A science magic set.
0:24:38 > 0:24:40An MP3 player.
0:24:40 > 0:24:44You've done very well, very well, Reds.
0:24:44 > 0:24:46A white wings glider kit.
0:24:48 > 0:24:50And a lunar eclipse bedroom light.
0:24:50 > 0:24:52Each of the Red Team, each of those prizes.
0:24:52 > 0:24:55Well done, team.
0:24:55 > 0:25:00Well done, team. Yellows, this is slightly difficult now because,
0:25:00 > 0:25:02well, there's no nice way of saying this.
0:25:02 > 0:25:04This is what you would have won.
0:25:04 > 0:25:07Remote control mosquito. Lovely.
0:25:07 > 0:25:10A lunar eclipse bedroom light.
0:25:10 > 0:25:12Would have been nice. Toxic mutants. Each.
0:25:12 > 0:25:14Would have been lovely.
0:25:14 > 0:25:16Horrible Science books. Yeah.
0:25:16 > 0:25:20Blood, Bones, Body Bits kit.
0:25:20 > 0:25:25White wings glider kit. And the science magic set.
0:25:25 > 0:25:28But don't worry, Yellows, because instead of taking them home,
0:25:28 > 0:25:33you can blow them all up, because it is now time for Bidet Goes Bang.
0:25:41 > 0:25:45Well, that time is upon us once again.
0:25:45 > 0:25:48Reds, you're feeling great. Look at all these prizes!
0:25:48 > 0:25:50You're taking them home Congratulations.
0:25:50 > 0:25:53Yellows, sorry. How are you feeling?
0:25:53 > 0:25:58- Disappointed but not disheartened.- OK.
0:25:58 > 0:26:02Why didn't you win? What went wrong in the game, do you think?
0:26:02 > 0:26:06Well, we all... In the gunge, it was hard to sort of walk.
0:26:06 > 0:26:09It is difficult to move around and find those discs.
0:26:09 > 0:26:11And I kept getting pulled down.
0:26:11 > 0:26:12That doesn't help!
0:26:12 > 0:26:16It was a close score, seven-eight, that really was.
0:26:16 > 0:26:20It was a riot in there. Well, bad luck. Who's gonna do the plunger?
0:26:20 > 0:26:23- All of us. - You'll share the blame together.
0:26:23 > 0:26:25OK. Well, the moment is very nearly here.
0:26:25 > 0:26:28I've seen plenty of good inventions go down the toilet
0:26:28 > 0:26:31and most of my experiments go up in smoke,
0:26:31 > 0:26:33but your prizes are about to do both at once
0:26:33 > 0:26:36in my specially reinforced exploding bidet.
0:26:36 > 0:26:41Prizes are in there ready, so, well, let's get on with it. Step forwards.
0:26:41 > 0:26:43Lift the plunger, please, and be ready.
0:26:43 > 0:26:46We will get you down. All right, Yellow Team? Audience...
0:26:46 > 0:26:51ALL: Five. Four. Three. Two. One.
0:26:51 > 0:26:54HUGE EXPLOSION
0:27:03 > 0:27:06Unfortunately, we are out of time. Today you might say we've had
0:27:06 > 0:27:09an in-depth look at particles and aerodynamics.
0:27:09 > 0:27:12Or you might say we mucked about with go-karts and hairdryers.
0:27:12 > 0:27:15They're both right but just tell your mum we did the first one.
0:27:15 > 0:27:17See you next time.
0:27:27 > 0:27:30Blast Lab was recorded before a live studio audience.
0:27:30 > 0:27:34No lab rat was harmed during the filming.
0:27:34 > 0:27:38Well, actually, one was but he was put down, painlessly.
0:27:38 > 0:27:42Subtitles by Red Bee Media Ltd
0:27:42 > 0:27:47E-mail subtitling@bbc.co.uk