0:00:31 > 0:00:34CHEERS AND APPLAUSE
0:00:34 > 0:00:38No, I don't know what it is either I've no idea, why don't you try it?
0:00:39 > 0:00:41GULP!
0:00:41 > 0:00:42Anything?
0:00:42 > 0:00:44Yeah? Feeling good?
0:00:44 > 0:00:46Oh, great! Well, whatever it is, it's good.
0:00:46 > 0:00:50No, wait! I've just remembered I left some ooze from a toxic tank
0:00:50 > 0:00:52on a radiator for about a week, it could be that...
0:00:52 > 0:00:56Yeah...it was that.
0:00:56 > 0:00:57Still, never mind.
0:00:57 > 0:01:00I'm Richard Hammond and welcome to my Blast Lab!
0:01:00 > 0:01:02CHEERS AND APPLAUSE
0:01:04 > 0:01:07I shall be inviting two teams of Britain's brightest young scientists
0:01:07 > 0:01:09to battle against each other for top prizes.
0:01:09 > 0:01:12That is assuming they can find their way here.
0:01:12 > 0:01:15This place is top secret so I couldn't give them directions
0:01:15 > 0:01:16for legal reasons.
0:01:16 > 0:01:18I'm pretty sure they'll chance upon it eventually.
0:01:18 > 0:01:21Coming up, in Mini Science with Mini Miss,
0:01:21 > 0:01:24our teams test pressure by building bazookas.
0:01:24 > 0:01:26CHEERS AND APPLAUSE
0:01:28 > 0:01:33We attempt to separate fact from fiction in Fact Nav 2.0 with Oliver.
0:01:39 > 0:01:42Meanwhile our Lab Rats are reunited with an old expert,
0:01:42 > 0:01:43and his new cannon.
0:01:47 > 0:01:51And today's Messy, Messy Mess Test is the Bridge of Destiny.
0:01:51 > 0:01:53Destiny... Bridge of.
0:01:53 > 0:01:55CHEERS AND APPLAUSE
0:01:57 > 0:01:59Keeping my lab secret isn't easy,
0:01:59 > 0:02:01especially since my self-made cloaking device
0:02:01 > 0:02:04keeps flashing luminous yellow lights
0:02:04 > 0:02:06and shouting, "IT'S HERE!" every hour.
0:02:06 > 0:02:09It's tricky, so I employed the best of the best to keep intruders out
0:02:09 > 0:02:11and that is, of course, my Ninja Nan!
0:02:19 > 0:02:22Let's see what she's up to in the Ninja Nannex. There she is.
0:02:22 > 0:02:25Started a book club with her friends from the Cobra Squad.
0:02:25 > 0:02:29There was trouble when they took their books back to the library,
0:02:29 > 0:02:30they'd worn them all out.
0:02:30 > 0:02:34Right, let's have a look at who's trying to get into my lab today.
0:02:34 > 0:02:37CHEERS AND APPLAUSE
0:02:40 > 0:02:44Hello! So, you three claim to be the Red Team, yeah, that's what you say.
0:02:44 > 0:02:47For security, I'd better check with your security file...
0:02:47 > 0:02:48Your names, please.
0:02:48 > 0:02:51- Anuj.- Rishil.- Aanand.
0:02:51 > 0:02:53Anuj, Rishil, Aanand. That's what I've got here.
0:02:53 > 0:02:56Also under "talent"... what are you going to do?
0:02:56 > 0:02:59I can play my arms.
0:02:59 > 0:03:01Anuj, you can play your arm?
0:03:01 > 0:03:03OK, go!
0:03:03 > 0:03:04TOOT TOOT PARP
0:03:04 > 0:03:08It's not the most musical thing I've heard,
0:03:08 > 0:03:10but there's a noise coming from his armpit.
0:03:10 > 0:03:12Come on into the lab, you're in.
0:03:12 > 0:03:14CHEERS AND APPLAUSE
0:03:15 > 0:03:17Hello, hello, hello. That's far enough.
0:03:17 > 0:03:19You're not completely through security yet.
0:03:19 > 0:03:22Ninja Nan's watching. At any moment, she could spring.
0:03:22 > 0:03:25Might not look like it, but she could, she could.
0:03:25 > 0:03:28We agreed a password with the real Red Team,
0:03:28 > 0:03:30which, if you are the real Red Team,
0:03:30 > 0:03:33and are going to be allowed access into the lab, you would know.
0:03:33 > 0:03:35So what do you reckon it is.?
0:03:35 > 0:03:38- ALL: Brussels sprouts.- It is! Why?
0:03:38 > 0:03:41ALL: Cos we hate them!
0:03:41 > 0:03:43That doesn't narrow it down, though.
0:03:43 > 0:03:46Everybody hates Brussels sprouts don't they?
0:03:46 > 0:03:48Does anybody here like Brussels sprouts?
0:03:48 > 0:03:51You do? Nobody but him likes Brussels sprouts,
0:03:51 > 0:03:55but that's what I've got written here, I'll accept that password.
0:03:55 > 0:03:58You're allowed in. Go and sit down ready for the first game.
0:03:58 > 0:04:00They are the... There's the Red Team.
0:04:00 > 0:04:02Yeah!
0:04:02 > 0:04:04We've got a Red Team, we need another.
0:04:04 > 0:04:08We need a Yellow Team, this lot says it's them.
0:04:08 > 0:04:11CHEERS AND APPLAUSE
0:04:11 > 0:04:14Yes, it's all well and good clapping and applauding,
0:04:14 > 0:04:17we don't yet that you are the real the Yellow Team.
0:04:17 > 0:04:20So I have your security file, your names are on it, what are they?
0:04:20 > 0:04:23- Sophie.- Amelie.- Louisa.
0:04:23 > 0:04:25Sophie, Amelie, Louisa. That's what it says.
0:04:25 > 0:04:27Talent, what are you going to do?
0:04:27 > 0:04:29We can all count to five in Cantonese.
0:04:29 > 0:04:31Yeah, we can all do that but...
0:04:31 > 0:04:33just to check how would I do it? Go on.
0:04:33 > 0:04:37Yuht, Yee, Sahm, Say, Mmm.
0:04:37 > 0:04:39I've no idea if that's what you did,
0:04:39 > 0:04:42but I'll take your word for it, come into the lab.
0:04:45 > 0:04:47Hello, team. Hello, hello.
0:04:47 > 0:04:49Well, you're very nearly through security.
0:04:49 > 0:04:52Just one more thing to do and that's the password.
0:04:52 > 0:04:55We agreed it with the real team. If that's you, you'd know. What is it?
0:04:55 > 0:04:58- ALL: Frozen fish.- Yes!
0:04:58 > 0:05:01Why have we got this food theme going today?
0:05:01 > 0:05:03I don't like their eyes.
0:05:03 > 0:05:04What?
0:05:04 > 0:05:07- I don't like their eyes. - Aren't they pretty enough?
0:05:07 > 0:05:09- They're horrid.- Really?
0:05:09 > 0:05:11Argh - there's a frozen fish!
0:05:11 > 0:05:14Sneaking up behind you! You really don't like them?
0:05:14 > 0:05:16OK. That's what it says on the security file
0:05:16 > 0:05:18so I have to believe you.
0:05:18 > 0:05:20You are the Yellow Team.
0:05:20 > 0:05:23Go and get ready! You're into the Blast Lab!
0:05:23 > 0:05:26We've got two teams and now I'd like to introduce a car
0:05:26 > 0:05:29who devours complex maths problems for breakfast,
0:05:29 > 0:05:32but makes a meal of left-hand turns and reversing.
0:05:32 > 0:05:33It is Oliver!
0:05:53 > 0:05:56Oliver! Will you join us?
0:05:56 > 0:05:59Let's get him...docked into Fact Nav. Get him hooked up.
0:05:59 > 0:06:03There you go. System up and running. Oh, yeah.
0:06:03 > 0:06:07He looks like an old car but to keep him right up to the minute
0:06:07 > 0:06:10I bought the very latest Fact Nav 2.0 upgrade.
0:06:10 > 0:06:14It's brilliant - crammed with millions of science facts.
0:06:14 > 0:06:15Really, it's fabulous.
0:06:15 > 0:06:20The only slight problem is I didn't have it installed...
0:06:20 > 0:06:25by an authorised dealer - I had it installed by a cowboy.
0:06:25 > 0:06:27And I do mean...an actual cowboy.
0:06:27 > 0:06:30So very good herding cattle and wearing a big hat -
0:06:30 > 0:06:33useless at installing in-car gadgetry.
0:06:33 > 0:06:37And as a result of that, I need your help, teams, to tell me
0:06:37 > 0:06:41whether the science facts I give you are true or false.
0:06:41 > 0:06:44Once you give me your answers, if they're true Oliver will do this.
0:06:44 > 0:06:47OLIVER: Yee hah!
0:06:47 > 0:06:50Like I said, installed by a cowboy.
0:06:50 > 0:06:53If it's false, he'll let us know by doing this.
0:06:53 > 0:06:55OLIVER: Mooo!
0:06:55 > 0:06:57Thank you, Oliver.
0:06:57 > 0:07:01That's how we know whether it's true or false. Here's how the game works.
0:07:01 > 0:07:04Teams, each of you has three red lights right now.
0:07:04 > 0:07:09Every time you answer correctly, I will turn one light green.
0:07:09 > 0:07:13That's a good thing - the first team to get three lights lit green wins.
0:07:13 > 0:07:15Hoorah! However...
0:07:15 > 0:07:20if you answer incorrectly, I don't turn one of your lights green -
0:07:20 > 0:07:22instead, I turn one of the other team's lights green.
0:07:22 > 0:07:26So Yellows, get it wrong enough - you could win it for Reds,
0:07:26 > 0:07:27and the other way round.
0:07:27 > 0:07:31The first question decides who gets control of the game
0:07:31 > 0:07:35from the beginning and then gets the next true-or-false question.
0:07:35 > 0:07:38This is "nearest-to" answer I want for this.
0:07:38 > 0:07:42So here is your question. In just one second,
0:07:42 > 0:07:45how many times can a woodpecker peck?
0:07:46 > 0:07:51In just one second, how many times can a woodpecker peck?
0:07:51 > 0:07:53You've got a bit of time. Have a chat.
0:07:53 > 0:07:58You'll need to answer soon. Write it down on your boards.
0:07:58 > 0:08:03Teams, I need to start hurrying you up.
0:08:03 > 0:08:05Time's up!
0:08:05 > 0:08:08OK, time is up. Both team's got an answer written down?
0:08:08 > 0:08:10Yellows, what have you written down?
0:08:10 > 0:08:111,000?
0:08:11 > 0:08:13Yes.
0:08:13 > 0:08:17In a second. Gives you a headache just thinking about it.
0:08:17 > 0:08:19Reds. 11.
0:08:19 > 0:08:23There is some disparity in the two answers there,
0:08:23 > 0:08:271,000 from the Yellows, 11 from the Reds.
0:08:27 > 0:08:31I think we can safely say one of the two teams is going to be closest
0:08:31 > 0:08:34to the real answer. The real answer is...
0:08:35 > 0:08:39..in just one second, a woodpecker can peck...
0:08:39 > 0:08:4325 times, which means the Reds take that green light.
0:08:43 > 0:08:44Yellows don't.
0:08:47 > 0:08:51That's pretty frantic - 25 times a second.
0:08:51 > 0:08:55A woodpecker has shock-absorbing tissue around the eyes and skull
0:08:55 > 0:08:59so it's brain has a tough membrane so it doesn't bounce around,
0:08:59 > 0:09:01otherwise it would hurt. Right,
0:09:01 > 0:09:05Reds have the first green light - you have control of the game.
0:09:05 > 0:09:08This is your first true-or-false question.
0:09:08 > 0:09:12I need you to tell me whether this is true or false.
0:09:12 > 0:09:15The noise made when you crack your knuckles
0:09:15 > 0:09:18is caused by bubbles of gas.
0:09:18 > 0:09:22Is that true or false? You can have a little bit a think.
0:09:24 > 0:09:27So, noise of cracking knuckles is bubbles of gas -
0:09:27 > 0:09:30- true or false?- True. - You think it's true.
0:09:30 > 0:09:34All in agreement. That's good to see. OK.
0:09:34 > 0:09:39Oliver, for the real answer, let's find out. Is that true or false?
0:09:39 > 0:09:42- OLIVER: Yee haa! - It's true! Well done, Reds.
0:09:42 > 0:09:45Well done. That's the second green light for you. Well done.
0:09:45 > 0:09:48That means the Reds have two green lights. Looking good.
0:09:48 > 0:09:52It's because there's fluid between the joints in the knuckles
0:09:52 > 0:09:55and there's gas trapped in that.
0:09:55 > 0:09:57The fluid's there to help them move
0:09:57 > 0:10:00and when you crack the knuckles this gas is released,
0:10:00 > 0:10:04and it can pop - that's what makes the cracking sound.
0:10:04 > 0:10:07That's not the only gas released from the body.
0:10:07 > 0:10:09LAB RAT BLOWS RASPBERRY
0:10:09 > 0:10:10Yeah, thank you, lab rat.
0:10:10 > 0:10:15Right, Yellows, back to business. This is important for you now.
0:10:15 > 0:10:16Here's your fact.
0:10:16 > 0:10:22Starfish can push their stomachs out of their mouths.
0:10:24 > 0:10:26Is that true or false?
0:10:26 > 0:10:29Starfish can push their stomachs out of their mouths.
0:10:29 > 0:10:31Let's see what the audience thinks.
0:10:31 > 0:10:34Vote with your feet. Is that true or false?
0:10:37 > 0:10:41Coming through. Ooh, a fair bit of mind-changing going on there.
0:10:41 > 0:10:45- You think not, no?- Er, no.- No. No?
0:10:45 > 0:10:48Any theories on this?
0:10:48 > 0:10:52- They don't have any hands or feet. - So how would they do it?
0:10:52 > 0:10:55- They don't have any bones. - But they must have stomachs.
0:10:55 > 0:10:59- What do you think?- I don't think they have stomachs.
0:10:59 > 0:11:01Starfish are not coming out of this well.
0:11:01 > 0:11:03Thank you. Get back to your places.
0:11:03 > 0:11:06Let's find out what the team thinks.
0:11:06 > 0:11:10Right. So it all hangs on this one for you, Yellows.
0:11:10 > 0:11:15Starfish can push their stomachs out of their mouths. What do you think?
0:11:15 > 0:11:18- True.- True.- You think it's true. OK.
0:11:20 > 0:11:24Oliver, the Yellows think it's true. Is it true or false, Oliver?
0:11:24 > 0:11:26- OLIVER: Yee haa!- It's true!
0:11:26 > 0:11:28Well done, Yellows. Oh!
0:11:28 > 0:11:31Yellows, you're still in with one green light.
0:11:31 > 0:11:34Reds, here is your science fact.
0:11:34 > 0:11:36The largest known star
0:11:36 > 0:11:39is three times brighter than the sun.
0:11:39 > 0:11:44and at least two of you guys are quite into astronomy. OK?
0:11:44 > 0:11:46Well, maybe it'll help.
0:11:49 > 0:11:52The largest known star is three times brighter than the sun.
0:11:52 > 0:11:53True or false?
0:11:53 > 0:11:56- False.- You're going with false.
0:11:56 > 0:11:59Oliver, the Reds think it's false.
0:11:59 > 0:12:03We need to know, is it true or false?
0:12:03 > 0:12:05- OLIVER: Mooo!- It is false!
0:12:05 > 0:12:08The third light is green for the Reds! Well done!
0:12:10 > 0:12:16It's actually thought to be about 500,000 times brighter than the sun.
0:12:16 > 0:12:20The Reds are the winners, so it's 1-0 to the Reds.
0:12:38 > 0:12:41Times tables, French, capital cities, karaoke
0:12:41 > 0:12:44and time machines - things that I'm terrible at.
0:12:44 > 0:12:48The first four I've known for years, but I only found out
0:12:48 > 0:12:51I was terrible at building time machines when I tried
0:12:51 > 0:12:53to bring my old science teacher back through time
0:12:53 > 0:12:57and she ended up looking like that. It is, of course, Mini Miss!
0:13:06 > 0:13:07"That"?
0:13:07 > 0:13:11I think you'd better add "manners" to that list of yours as well, Richard.
0:13:11 > 0:13:14Beg your pardon, Miss. Sorry. What have you got for us today?
0:13:14 > 0:13:19Well, today our teams are going to be playing the game I like to call...
0:13:21 > 0:13:25Wow! Now, Miss, this already looks like it could be my favourite
0:13:25 > 0:13:27experiment of all time.
0:13:27 > 0:13:33That's great. It's mine, too, because it involves chemistry and physics.
0:13:33 > 0:13:38Ah. It's mine because it involves bazookas and great big targets.
0:13:38 > 0:13:42There's a surprise(!) The teams must fill their pots half full with water.
0:13:42 > 0:13:46This one looks more like it's half empty to me, Miss.
0:13:46 > 0:13:50- No-one likes a smart Alec.- No. Or coffee-flavoured jellybeans.
0:13:50 > 0:13:52- Shush!- Sorry, Miss.
0:13:52 > 0:13:55They then have to pop a vitamin C tablet in,
0:13:55 > 0:13:59put the lid on and strap the pot onto the bazooka.
0:13:59 > 0:14:03The tablet fizzes, releasing carbon dioxide on the end of their bazooka.
0:14:03 > 0:14:07So when the pressure inside the pot gets too great
0:14:07 > 0:14:10with the carbon dioxide being released,
0:14:10 > 0:14:13the lid flies off the end of it and there you go.
0:14:13 > 0:14:17- Correct!- The teams are aiming their lids into this giant target.
0:14:17 > 0:14:20The closer a lid lands to the bull's-eye,
0:14:20 > 0:14:24- the more points it scores. - Have we got all that, teams?- Yep.
0:14:24 > 0:14:28So we know what to do. You have some time to fire as many lids as you can
0:14:28 > 0:14:30and that some time starts...
0:14:30 > 0:14:31now!
0:14:32 > 0:14:36Away go both teams, filling their pots with water.
0:14:36 > 0:14:40The amount of water will affect how quickly their bazooka will fire.
0:14:41 > 0:14:44Reds are the first to get firing.
0:14:44 > 0:14:47Pressure builds up until...boom!
0:14:47 > 0:14:49The top flies off.
0:14:49 > 0:14:53Yellows are now firing and reloading with water.
0:14:55 > 0:14:57And getting the hang of it, with Sophie and Amelie
0:14:57 > 0:15:00bazooka-ing a top each.
0:15:00 > 0:15:02That's two points for the Yellows
0:15:02 > 0:15:06and the Reds follow suit with an equally useful couple of points.
0:15:06 > 0:15:10The reason the lids pop off is all down to what's in those tablets.
0:15:10 > 0:15:11They have Vitamin C,
0:15:11 > 0:15:14but they've also got a little bit of acid and alkaline
0:15:14 > 0:15:17and these are kept separate in the dry tablet
0:15:17 > 0:15:21but when a tablet is put in water they dissolve and they mix
0:15:21 > 0:15:24and when acid and alkaline mix, they make carbon dioxide gas
0:15:24 > 0:15:27and it's this gas that builds up inside the pot until eventually
0:15:27 > 0:15:31the lid is made to pop off because the pressure's too much to stay in.
0:15:31 > 0:15:34Hopefully the, lid then flies towards the targets, some are.
0:15:34 > 0:15:38The rest are going everywhere. The teams have really got their eye in
0:15:38 > 0:15:42and the tops are raining down on the scoring zone.
0:15:45 > 0:15:47Oh, and look at that!
0:15:47 > 0:15:50Amelie has got the Yellows a bull's-eye, that's five points.
0:15:50 > 0:15:54It really could be anybody's game, this.
0:15:58 > 0:16:01BUZZER SOUNDS
0:16:01 > 0:16:04OK, teams. OK, teams, put them down.
0:16:04 > 0:16:07- Oh, that one's going to go, there you go.- There you go.
0:16:07 > 0:16:09It didn't score anyway, that's OK.
0:16:09 > 0:16:12Teams, well done both of you that was quite frantic.
0:16:12 > 0:16:15What we must now do is tot up the scores.
0:16:15 > 0:16:18For the Yellows...
0:16:18 > 0:16:2028 points. For the Reds...
0:16:20 > 0:16:2422 which means it's a win for the Yellows! Well done, it was close!
0:16:24 > 0:16:26CHEERING AND APPLAUSE
0:16:26 > 0:16:30It was close, Yellows, you just scored more.
0:16:30 > 0:16:33That means the score overall is one all! Lovely.
0:16:36 > 0:16:38To fully test a scientific theory,
0:16:38 > 0:16:41you have to do a well-considered double-blind test,
0:16:41 > 0:16:44taking into account a set of control conditions
0:16:44 > 0:16:47and latching down any variables that could affect the results.
0:16:47 > 0:16:51It's either that or do the same thing again but much, much bigger.
0:16:51 > 0:16:54I went for the second option, cos it's more fun.
0:16:56 > 0:17:00In an earlier big experiment, I invited a spud launcher expert
0:17:00 > 0:17:04to see if he could use compressed air and an air cannon,
0:17:04 > 0:17:05well, a drainpipe,
0:17:05 > 0:17:09to break the world record for the fastest tennis ball.
0:17:11 > 0:17:14He didn't. It's not all bad though,
0:17:14 > 0:17:18from firing a potato through a tennis racket with steel strings,
0:17:18 > 0:17:21he did land a lucrative chip-making contact. He's happy.
0:17:23 > 0:17:26Today we've decided to challenge him one more time
0:17:26 > 0:17:30to see whether he has a world record in him at all.
0:17:30 > 0:17:34The world record attempt here today... Golf.
0:17:35 > 0:17:40The longest ever golf drive was set by an American called Jack Hamm,
0:17:40 > 0:17:43who reached a distance of 418.78 metres.
0:17:43 > 0:17:47Let's see how far the average man... Well, less-than-average man -
0:17:47 > 0:17:51a Lab Rat, in fact - can hit a golf ball.
0:17:56 > 0:17:58When a golfer hits a golf ball,
0:17:58 > 0:18:01the contact between the face of the club and the golf ball
0:18:01 > 0:18:03lasts less than half a millisecond.
0:18:03 > 0:18:07That's 600 times quicker than it takes you to blink.
0:18:07 > 0:18:11I don't think the world record is under any threat from this man,
0:18:11 > 0:18:14but it might just be a little worried by the sight of this man
0:18:14 > 0:18:18and a certain powerful machine slung under his shoulder.
0:18:18 > 0:18:22Hello, I'm a spud launcher expert.
0:18:22 > 0:18:24But we're not launching any spuds today,
0:18:24 > 0:18:28we'll have to upgrade him, so who is he now?
0:18:28 > 0:18:31- I'm a golf ball launcher expert. - That's better.
0:18:31 > 0:18:35Our golf-ball cannon uses compressed air as the source of energy
0:18:35 > 0:18:39to launch our ball on it's hopefully world record-breaking journey.
0:18:39 > 0:18:43In our launcher the compressed air is held in a sealed chamber
0:18:43 > 0:18:45just next to the golf ball.
0:18:45 > 0:18:47When the compressed air is released,
0:18:47 > 0:18:50it rapidly expands into the pipe housing the golf ball,
0:18:50 > 0:18:53forcing the ball up and out of the end of the pipe,
0:18:53 > 0:18:57hopefully launching it a record-breaking distance.
0:18:59 > 0:19:04You can see the distance he has to beat - a whopping 418.78 metres -
0:19:04 > 0:19:09more than a quarter of a mile. But has he got what it takes?
0:19:09 > 0:19:12Will he beat the world golf-drive record?
0:19:12 > 0:19:14BLAM!
0:19:14 > 0:19:17Hold the experiment right there.
0:19:17 > 0:19:19Teams, there's a point up for grabs here.
0:19:19 > 0:19:23You could both do with it, the score right now one-all.
0:19:23 > 0:19:26So I will give another point to the team that can tell me...
0:19:26 > 0:19:29Does he do it? Does he break the record?
0:19:33 > 0:19:35Reds? Will he do it?
0:19:35 > 0:19:38- We think it don't work. - It won't work.- Won't work, OK.
0:19:38 > 0:19:40Reds think it won't work.
0:19:40 > 0:19:42- We think it will.- Yes.
0:19:42 > 0:19:43You think it will work?
0:19:43 > 0:19:48Well, simple enough then, let's find out. Carry on with the experiment.
0:19:50 > 0:19:52OK, let's go through the pre-launch check list.
0:19:55 > 0:19:56Nerves of steel?
0:19:56 > 0:20:00No, he probably doesn't need those, this is actually surprisingly safe,
0:20:00 > 0:20:03probably even safer than real golf.
0:20:03 > 0:20:05Argh!
0:20:05 > 0:20:06Peak physical fitness?
0:20:08 > 0:20:10I don't think that would be necessary, either.
0:20:10 > 0:20:14He's just standing there really, isn't he?
0:20:14 > 0:20:17The ability to just stand there and just push the trigger? Check.
0:20:17 > 0:20:21That's enough of that, let's get on with the launch.
0:20:21 > 0:20:23Three, two, one...
0:20:23 > 0:20:25fire.
0:20:26 > 0:20:29Wow! It went a long way but where?
0:20:29 > 0:20:35Let's fire lots more just to make it easy to find them at the other end.
0:20:41 > 0:20:44And the answer to the question that's been on our lips.
0:20:44 > 0:20:47No, not does the golf ball launcher expert's house
0:20:47 > 0:20:49still have any guttering? Although I am intrigued.
0:20:49 > 0:20:52No, I mean, the answer to the second biggest question -
0:20:52 > 0:20:55did he break the record?
0:20:55 > 0:20:56Let's send in my Lab Rat,
0:20:56 > 0:20:59who's been specially cross-bred with a Labrador
0:20:59 > 0:21:03to make him particularly efficient at retrieving objects.
0:21:03 > 0:21:05There's one!
0:21:05 > 0:21:10I believe we have a new world record, more than 450 metres.
0:21:10 > 0:21:12Take that, America!
0:21:12 > 0:21:14CHEERING
0:21:14 > 0:21:19Well, there we go. He does it, that means a point goes to the Yellows,
0:21:19 > 0:21:22The score now is 2-1.
0:21:24 > 0:21:26It's time for...
0:21:29 > 0:21:33Now, in this tank here are pieces of a bridge,
0:21:33 > 0:21:35but not just any old bridge.
0:21:35 > 0:21:37It's the Bridge of Destiny.
0:21:37 > 0:21:40The Bridge of Destiny!
0:21:40 > 0:21:42- Comfortable in there?- Yeah.
0:21:42 > 0:21:45Good, well you won't be, don't you worry.
0:21:45 > 0:21:47You have to find all the pieces to make your bridge
0:21:47 > 0:21:50and as soon you've finished, pull this lever.
0:21:50 > 0:21:53At that moment the car that's pulling your trailer of prizes
0:21:53 > 0:21:54will cross the tank.
0:21:54 > 0:21:58It's that simple. That is how you play the Bridge of Destiny.
0:21:58 > 0:22:01The Bridge of Destiny!
0:22:01 > 0:22:03Yeah, thank you.
0:22:03 > 0:22:06The team that crosses it first will win all the prizes,
0:22:06 > 0:22:08that's including a skeleton model,
0:22:08 > 0:22:11a dinosaur egg and an internal combustion engine.
0:22:11 > 0:22:15So, if we're ready teams, let's play the Bridge of Destiny.
0:22:15 > 0:22:18The Bridge of Destiny!
0:22:18 > 0:22:21Yee haa!
0:22:21 > 0:22:24Let me guess, you're the cowboy that fitted Oliver's Fact Nav 2.0?
0:22:26 > 0:22:29Yeah. OK, thank you.
0:22:29 > 0:22:32Each team has a squeegee. When you've finished your bridge,
0:22:32 > 0:22:35you can use it to clean the gunk off
0:22:35 > 0:22:36to give your car a clear run,
0:22:36 > 0:22:40but it's up to you how much time you spend doing that, OK?
0:22:40 > 0:22:42You've got to make that judgement.
0:22:42 > 0:22:46Yellow Team, you are leading so you've got a five-second head start.
0:22:46 > 0:22:48Reds, you go when you hear the second claxon.
0:22:48 > 0:22:51OK, well, if we are ready.
0:22:51 > 0:22:52Let's do it. Go!
0:22:52 > 0:22:54CLAXTON SOUNDS
0:22:55 > 0:22:58Away go the Yellows, seeking their bridge parts.
0:22:58 > 0:22:59CLAXTON SOUNDS
0:22:59 > 0:23:03Oh, and now the Reds are up and running, too.
0:23:03 > 0:23:06I forgot to tell the teams about Alan, my massive robot,
0:23:06 > 0:23:10- who has the most terrible cold. - Achooo!
0:23:10 > 0:23:12Still, they know now!
0:23:12 > 0:23:17Despite Alan, the Reds are putting their second bridge piece in place.
0:23:17 > 0:23:20The Yellows look to be struggling,
0:23:20 > 0:23:24but look at that, the Reds they could be done in record time.
0:23:24 > 0:23:29Ah, I think I've spoken too soon, the Reds have a problem.
0:23:29 > 0:23:32That last piece will not go in.
0:23:32 > 0:23:36Rishil was about to pull the lever, but Aanand stopped him just in time.
0:23:36 > 0:23:40Meanwhile, the Yellows are now making good progress.
0:23:41 > 0:23:44And look at that - the Yellows are about to add their last piece.
0:23:44 > 0:23:47The Reds need to sort their problems and fast.
0:23:47 > 0:23:51In goes the final piece, the Yellows have come back to win!
0:23:51 > 0:23:53What?
0:23:53 > 0:23:57They're now cleaning the bridge rather than pulling the lever.
0:23:59 > 0:24:00The Reds could still win this
0:24:00 > 0:24:04while the Yellows are still giving their bridge a spring clean!
0:24:04 > 0:24:06The Reds now trying to sort their problems.
0:24:06 > 0:24:09Yellows, pull the lever! Pull the lever!
0:24:09 > 0:24:12Finally they do and away goes their car.
0:24:13 > 0:24:16CHEERING
0:24:18 > 0:24:21Now that was quite tense for those of us watching.
0:24:21 > 0:24:24Both teams, incredible attention to detail,
0:24:24 > 0:24:27Reds really wrestling with getting the bridge assembled.
0:24:27 > 0:24:31Yellows even when your bridge was built,
0:24:31 > 0:24:34what were you going to do with that bridge, operate on it?
0:24:34 > 0:24:36It was pretty clean by the time you'd finished.
0:24:36 > 0:24:40But we do have our winners and they are the Yellow Team! Well done!
0:24:40 > 0:24:43CHEERS AND APPLAUSE
0:24:43 > 0:24:47Sorry, lads. That was brilliant Yellows, well done.
0:24:47 > 0:24:49Let's find out exactly what you've won.
0:24:49 > 0:24:52All right, Lab Rat, drop the whole cowboy thing, thank you.
0:24:52 > 0:24:56Ninja Nan, are you ready? A skeleton model, there you go.
0:24:56 > 0:25:00An internal combustion engine.
0:25:00 > 0:25:02A transforming ball.
0:25:02 > 0:25:04A butterfly garden.
0:25:05 > 0:25:07A dinosaur egg.
0:25:08 > 0:25:09A metal detector.
0:25:11 > 0:25:12A puzzle cube.
0:25:14 > 0:25:17And Tomb of Doom.
0:25:19 > 0:25:21Yellows, well done, all of those prizes for you.
0:25:21 > 0:25:25Reds, wow that was quite a battle in there.
0:25:25 > 0:25:29And that's exactly what you would have been taking home
0:25:29 > 0:25:31but on Blast Lab one team goes home with their prizes,
0:25:31 > 0:25:34the other team get to do exactly the same.
0:25:34 > 0:25:36apart from the "with the prizes" bit, you just go home
0:25:36 > 0:25:39because it now time for Bidet Goes Bang!
0:25:49 > 0:25:51Yellows, well played.
0:25:51 > 0:25:52That Bridge of Destiny
0:25:52 > 0:25:56is going to be the cleanest bridge in the entire universe.
0:25:56 > 0:26:00I've never seen anything like it. Congratulations, you won all these!
0:26:00 > 0:26:01That's great. Reds.
0:26:01 > 0:26:05I'm sorry, that was the tensest end game we've ever, ever had.
0:26:05 > 0:26:08I don't know if I could stand another one.
0:26:08 > 0:26:12Well done. Right up until the very end when, all of a sudden, you lost.
0:26:12 > 0:26:15It's time for the Walk of Shame. Follow me, Reds.
0:26:15 > 0:26:16GROANING
0:26:16 > 0:26:18I know, be strong, be strong. Come on.
0:26:19 > 0:26:22Yep, audience. It's tough.
0:26:22 > 0:26:24Be strong, Reds.
0:26:28 > 0:26:29Be strong.
0:26:35 > 0:26:39Lads, you've been great sports, thanks for playing and you've lost.
0:26:39 > 0:26:41Now you'll blow your prizes up. All right?
0:26:41 > 0:26:44- Yep.- Good. Lift the plunger and we will count you down.
0:26:44 > 0:26:45Audience, if we're ready.
0:26:45 > 0:26:51ALL: Five, four, three, two, one.
0:26:51 > 0:26:54BLAST
0:26:54 > 0:26:55Well done, Reds.
0:26:57 > 0:27:00Well done, team. Thanks for being great sports.
0:27:00 > 0:27:02So what have we learnt today?
0:27:02 > 0:27:05Have we learnt about pressure, force and chemical reactions?
0:27:05 > 0:27:08Yes, but we've also learnt how to use bits of old drainpipe
0:27:08 > 0:27:13to cheat at golf, which is just as useful. I'll see you soon. Goodbye.
0:27:40 > 0:27:42Subtitles by Red Bee Media Ltd
0:27:42 > 0:27:46E-mail subtitling@bbc.co.uk