0:00:33 > 0:00:34This is it.
0:00:34 > 0:00:38I have done it. That is the world's smallest microchip.
0:00:38 > 0:00:40The power of a thousand super computers
0:00:40 > 0:00:41on something the size of a pinhead.
0:00:41 > 0:00:44Oh...oh! Lab Rat what have I told you
0:00:44 > 0:00:46about playing ball games in the lab?
0:00:46 > 0:00:49That is six years' work, down the drain, gone.
0:00:49 > 0:00:52That could have changed the world we live in for all of us.
0:00:52 > 0:00:54- And I'll never... - SQUELCH
0:00:54 > 0:00:55Ah.
0:00:56 > 0:00:57Thank you.
0:00:57 > 0:00:59Thank you very much indeed.
0:00:59 > 0:01:02I'm Richard Hammond and welcome to my Blast Lab.
0:01:06 > 0:01:09Joining me today, two groups of young scientists
0:01:09 > 0:01:12who will compete in various challenges to win great prizes.
0:01:12 > 0:01:15Coming up we have Facts Galore with my trusty sidekick Oliver.
0:01:21 > 0:01:25In Mini's Science, there's even more friction than usual.
0:01:29 > 0:01:30It'll still work.
0:01:30 > 0:01:32We go back in time to discover
0:01:32 > 0:01:34why the Lab Rats wear red and yellow lab coats.
0:01:38 > 0:01:41And they're grotty, they're snotty, they're definitely robot-y,
0:01:41 > 0:01:43they are the Snot Bots.
0:01:47 > 0:01:52To keep my top secret lab safe, I have employed the most dangerous
0:01:52 > 0:01:54security woman biscuits can buy.
0:01:54 > 0:01:57She is my Ninja Nan, I've even built her her very own ninja "Nannex".
0:02:05 > 0:02:06You need to be pretty quiet
0:02:06 > 0:02:09she's having a Superwomen's Institute meal there.
0:02:09 > 0:02:13It may look like ordinary swiss roll but it's actually made of steel.
0:02:13 > 0:02:14Only she can do that.
0:02:14 > 0:02:17Let's look at who's trying to get into my lab today.
0:02:22 > 0:02:24Yes, yes, yes, they're all very excited in here.
0:02:24 > 0:02:27They think you're the Red team. We don't know yet - security check.
0:02:27 > 0:02:30Your names, please. What are you called?
0:02:30 > 0:02:33- BJ.- Spencer.- Harrison.
0:02:33 > 0:02:36Yeah, OK, that checks out with your security file.
0:02:36 > 0:02:40And talent, who's going to do what? To check you are who you say.
0:02:40 > 0:02:43- I've got weird eyebrows.- Why?
0:02:43 > 0:02:46Because when I move them they be very weird.
0:02:46 > 0:02:48I've seen stranger in here, you wouldn't believe,
0:02:48 > 0:02:51but they are moving independently. I'll accept that.
0:02:51 > 0:02:53Come in, come into the lab.
0:02:56 > 0:02:59Please, please, please you can come in this far, no further.
0:02:59 > 0:03:01Ninja Nan's watching.
0:03:02 > 0:03:04You're pretty much good to go, one final check.
0:03:04 > 0:03:07We've agreed a password with the real Red team,
0:03:07 > 0:03:09and if you're Red team you'd know what that is.
0:03:09 > 0:03:10ALL: Mushrooms.
0:03:10 > 0:03:13That's what I've got written down here. Why mushrooms?
0:03:13 > 0:03:16Because our mum always cooks them and we absolutely hate them.
0:03:16 > 0:03:19- What all three of you hate mushrooms?- Yeah.
0:03:19 > 0:03:21You are the official Red team though.
0:03:21 > 0:03:24Go and get settled in and ready.
0:03:24 > 0:03:27There you go, audience, they are your Red team.
0:03:27 > 0:03:28That's half the team - we need another,
0:03:28 > 0:03:31let's see the people claiming to be the Yellow team.
0:03:38 > 0:03:41OK, you three claim to be the Yellow team and you could be,
0:03:41 > 0:03:43we must check to find out.
0:03:43 > 0:03:44Your names, please.
0:03:44 > 0:03:46- Maya.- Angelique.- Andrea.
0:03:46 > 0:03:49Maya, Angelique, Andrea - yeah, that's what I've got down here.
0:03:49 > 0:03:52Angelique and Andrea, it has your names under talent.
0:03:52 > 0:03:56- BOTH: We can do gymnastics. - Really? Go on, then.
0:03:57 > 0:04:02Owwww! No, OK, I'll accept that, come into the lab.
0:04:04 > 0:04:08Be careful - all the loose change will fall out of your pockets.
0:04:08 > 0:04:11Welcome to the Lab. You're nearly through, just one final check.
0:04:11 > 0:04:15We've agreed a password with the real Yellow team, what is it?
0:04:15 > 0:04:16ALL: Chatterbox.
0:04:16 > 0:04:21- Why, any reason?- Because we always get in trouble for talking.
0:04:21 > 0:04:23You won't get in trouble for that around here.
0:04:23 > 0:04:26Just don't touch anything. It explodes.
0:04:26 > 0:04:28Go and get settled in and ready for the first game.
0:04:28 > 0:04:30OK, they are your Yellow team.
0:04:30 > 0:04:32Now let's meet our adjudicator.
0:04:32 > 0:04:36He's a fast thinker and a very slow starter, it is Oliver.
0:04:53 > 0:04:56Yeah, that's the Fact Nav 2.0 plugged in. OK.
0:04:56 > 0:05:02When I was installing the latest hi-tech Fact Nav 2.0 system,
0:05:02 > 0:05:08I accidently spilled some strawberry milkshake on the instructions.
0:05:08 > 0:05:09And a bit in the wires.
0:05:09 > 0:05:13And as a result, it's not always 100% reliable.
0:05:13 > 0:05:17Some of the facts are true, some are false,
0:05:17 > 0:05:21and, teams, it's up to you to tell me which they are.
0:05:21 > 0:05:24If they are true, Oliver will tell us by doing this...
0:05:24 > 0:05:26HORN AND ALARM
0:05:26 > 0:05:30And if they turn out to be false, he'll let us know by doing this...
0:05:30 > 0:05:31FOGHORN
0:05:31 > 0:05:34OK, the game's simple. You'll see each team has got three lights.
0:05:34 > 0:05:36Each time you answer a question correctly,
0:05:36 > 0:05:38we'll turn a light green.
0:05:38 > 0:05:43The first team to get all three lights lit green will win. Hurrah!
0:05:43 > 0:05:45Not quite that simple, though,
0:05:45 > 0:05:48because if you answer a question incorrectly,
0:05:48 > 0:05:51not only do we not light one of your lights green,
0:05:51 > 0:05:54we light one of the other team's lights green.
0:05:54 > 0:05:57We need to sort out who's going to seize control of the game
0:05:57 > 0:06:00and we'll do that with a "nearest to" question.
0:06:00 > 0:06:04Halley's Comet was last seen from Earth in 1986.
0:06:04 > 0:06:07In what year will we next see it?
0:06:07 > 0:06:10Halley's Comet was last seen from Earth in 1986.
0:06:10 > 0:06:12In what year will we next see it?
0:06:17 > 0:06:20- 'Time's up.'- Time is up. Yellow's what have you gone for?
0:06:20 > 0:06:213050.
0:06:21 > 0:06:233050.
0:06:23 > 0:06:24Reds?
0:06:24 > 0:06:272124.
0:06:27 > 0:06:29Well, I can tell you the real answer is...
0:06:29 > 0:06:312061, which means the Reds,
0:06:31 > 0:06:34despite being a little way away, win the point.
0:06:38 > 0:06:41That's a green light for the Reds, you're in control.
0:06:41 > 0:06:43You get the first true or false question.
0:06:43 > 0:06:46Antarctica is classed as a desert.
0:06:46 > 0:06:49Is that true or is that false?
0:06:49 > 0:06:52Have a think. Audience, let us know what you think, vote with your feet,
0:06:52 > 0:06:55let's see what you think, true or false.
0:06:58 > 0:07:00ALARM
0:07:00 > 0:07:02A lot of hopping about and mind-changing.
0:07:02 > 0:07:04You're in the middle there.
0:07:04 > 0:07:07- Can't make your mind up, or you just trying to get on there?- Yeah.
0:07:07 > 0:07:11- You think it is?- Yeah.- Do you think it's a desert?- No.- No.
0:07:11 > 0:07:13You're on the wrong spot, then.
0:07:13 > 0:07:16OK, right. Over here, what do we think?
0:07:16 > 0:07:18I think it's, er, not a desert.
0:07:18 > 0:07:22Let's find out what the real answer is. OK, back to your places, please.
0:07:22 > 0:07:24So the audience, I would say,
0:07:24 > 0:07:28more coming down in favour of it being classed as a desert.
0:07:28 > 0:07:30But it's your call because you're in control.
0:07:30 > 0:07:34What do you think? Antarctica is classed as a desert, true or false?
0:07:34 > 0:07:35- ALL: True. - You think it's true.
0:07:35 > 0:07:37Oliver, is it true or false?
0:07:37 > 0:07:38HORN BLARING AND ALARM
0:07:38 > 0:07:40It's true, well done.
0:07:40 > 0:07:41A green for the Reds.
0:07:43 > 0:07:46Brother celebration theme going on there.
0:07:46 > 0:07:49If an area has less than 250ml of annual rain,
0:07:49 > 0:07:51it is classed as a desert.
0:07:51 > 0:07:55Parts of Antarctica have seen no rain for 2 million years.
0:07:55 > 0:07:58Right, let's ask a question for the Yellows. Here is your science fact.
0:07:58 > 0:08:02Vitamin C is an acid.
0:08:02 > 0:08:05Is that true or false?
0:08:05 > 0:08:09Vitamin C is an acid - is that true or is that false?
0:08:09 > 0:08:11- ALL: True.- You think it's true.
0:08:11 > 0:08:13Oliver, is it true or false?
0:08:13 > 0:08:15- ALARM AND HORN BLARING - It's true. Well done.
0:08:17 > 0:08:18That's a light lit for you.
0:08:18 > 0:08:21That puts you very much still in the game.
0:08:21 > 0:08:24Reds, three brothers, hate mushrooms and like science.
0:08:24 > 0:08:26Here is your science fact.
0:08:26 > 0:08:30A centipede is born with 100 legs.
0:08:30 > 0:08:34Just to remind you, in case you've forgotten, this is to win.
0:08:34 > 0:08:37Get this wrong, you give the Yellows another life,
0:08:37 > 0:08:39and they can win next time around, OK?
0:08:39 > 0:08:42The centipede is born with 100 legs. Is that true or false?
0:08:42 > 0:08:44- ALL: False. - You think false.
0:08:44 > 0:08:45Is it true or false, Oliver?
0:08:45 > 0:08:46- FOGHORN - It's false!
0:08:46 > 0:08:50That means another light lit green for the Reds, they win this game.
0:08:50 > 0:08:52Yellows, I'm sorry. A long way yet to go.
0:08:53 > 0:08:58That means the score now with three lights lit, it's 1-nil to the Reds.
0:09:14 > 0:09:16One morning, I was so bored
0:09:16 > 0:09:19I decided to bring my old science teacher back from school
0:09:19 > 0:09:22to the Blast Lab using a time machine.
0:09:22 > 0:09:26It went well until I accidently hit F3 on the keyboard
0:09:26 > 0:09:28and she came back as a ten-year-old.
0:09:28 > 0:09:29She is of course Mini Miss.
0:09:36 > 0:09:39- Hello, miss.- You never did check your working, Richard.
0:09:39 > 0:09:41No, sorry, miss. Good job I didn't hit F4.
0:09:41 > 0:09:44That would have brought you back as a gerbil.
0:09:44 > 0:09:46I shudder to think what F5 would've done.
0:09:46 > 0:09:48I don't think you want to know, miss. What are we doing?
0:09:48 > 0:09:52Today's game is all about phone books and friction
0:09:52 > 0:09:53in a game I like to call...
0:09:56 > 0:10:00I'm in the phone book, miss. Under "S" for scientist.
0:10:00 > 0:10:02You're also under "I" for idiot.
0:10:02 > 0:10:05- Yeah, you spotted that. - Now, listen up.
0:10:05 > 0:10:09These two phone books, with a few pages interleaved,
0:10:09 > 0:10:13can support quite a lot of weight, thanks to friction.
0:10:13 > 0:10:17So, weight is being supported off this little ring, I'm guessing,
0:10:17 > 0:10:22- and then are these screwed together? - No.- Glued?- No.- Taped?- No.
0:10:22 > 0:10:27- Nailed?- No. Sensing a pattern here, Richard?- Is it magic?
0:10:27 > 0:10:29No, it's friction.
0:10:29 > 0:10:32- OK.- Now, the teams must take it in turns
0:10:32 > 0:10:36to hang these household objects off this loop and then...
0:10:36 > 0:10:39And then the team that causes the phone books to separate, loses.
0:10:39 > 0:10:43- Don't interrupt, Richard.- Sorry. - What I was going to say is,
0:10:43 > 0:10:46the team that causes the book to fall, loses.
0:10:46 > 0:10:49- But...but...- Not a word, Richard. - OK. Right but before we do this,
0:10:49 > 0:10:52we need to decide who's going first and second.
0:10:52 > 0:10:54Reds, you're in the lead right now.
0:10:54 > 0:10:58- Do you want to go first or second? - First.- If you'd like to step up.
0:10:58 > 0:11:03This is your selection of objects. Go round and make a selection.
0:11:03 > 0:11:06The rules do state you're not allowed to pick an object up.
0:11:06 > 0:11:10You have to guess, by looking at them, which one you want to use.
0:11:10 > 0:11:12Just to explain,
0:11:12 > 0:11:15these two bits of paper slide over each other quite easily.
0:11:15 > 0:11:19But if I squeeze them together, it's much, much harder to separate them,
0:11:19 > 0:11:22to move them across one another.
0:11:22 > 0:11:25That's because the more of it that I bring into contact
0:11:25 > 0:11:28with the other piece, the more friction there is.
0:11:28 > 0:11:33Imagine tiny bumps. They're gripping one another and it's harder to move.
0:11:33 > 0:11:38The bigger the area sticking together, the more friction there is
0:11:38 > 0:11:40and all those pages
0:11:40 > 0:11:43adds up to a big area of paper pressed against one another.
0:11:43 > 0:11:46No glue, nothing to fix it in place, just friction.
0:11:46 > 0:11:49If I squeeze them, as you add the weight,
0:11:49 > 0:11:53it'll squeeze the pages together, which will increase the friction.
0:11:53 > 0:11:57There will come a point when the whole lot will fall down.
0:11:57 > 0:12:00The team that does that loses. Reds, have you made up your mind?
0:12:00 > 0:12:03- Yes.- What are you going for? - The oil can.- The oil can.
0:12:03 > 0:12:05All right, team. Away you go.
0:12:05 > 0:12:09The oil can is the second heaviest item, weighing four kilograms.
0:12:09 > 0:12:12OK, it's taking two of you to lift it
0:12:12 > 0:12:15and you've taken a Wellington boot.
0:12:15 > 0:12:18Will the phone books be able to hold its weight?
0:12:18 > 0:12:20- Oh, oh, oh!- Yes.- Just about did it!
0:12:20 > 0:12:23CHEERING AND APPLAUSE
0:12:25 > 0:12:27Some brave play from the Red team,
0:12:27 > 0:12:30going for the second heaviest object, four kilograms of oil can,
0:12:30 > 0:12:33suspended from there by nothing more than friction.
0:12:33 > 0:12:38No glue, no nails, no fixings of any sort, just the friction.
0:12:38 > 0:12:41It's the Yellows' turn now and they've gone for the teddy bear,
0:12:41 > 0:12:43the third lightest item,
0:12:43 > 0:12:44weighing only 300 grams.
0:12:44 > 0:12:49There you go, there you go. Held in place by friction alone.
0:12:49 > 0:12:52Well done, Yellows. Excellent play.
0:12:52 > 0:12:55The boys are up next, and they've gone with the tambourine.
0:12:55 > 0:12:58It's 150 grams, making it the lightest item.
0:12:58 > 0:13:00- Yes!- And it's worked!
0:13:00 > 0:13:02It's worked. Well done, Reds.
0:13:02 > 0:13:05The Yellows now coming back with the candlestick,
0:13:05 > 0:13:07weighing in at 475 grams.
0:13:07 > 0:13:11Oh, it's on, it's on, it's on! Well done, Yellows!
0:13:11 > 0:13:13And the pages showing no signs of weakening.
0:13:13 > 0:13:18The boys have gone with the foam hand, weighing 375 grams.
0:13:18 > 0:13:20Ooh, OK!
0:13:20 > 0:13:23The Yellows have answered with the tennis racquet,
0:13:23 > 0:13:25which weighs 400 grams.
0:13:25 > 0:13:29Look at that! Well done, Yellows.
0:13:29 > 0:13:33Unbelievable. There's a combined weight of 5.7 kilograms up there
0:13:33 > 0:13:36and the pages are still holding the strain,
0:13:36 > 0:13:39more than can be said for a certain Red team member.
0:13:39 > 0:13:43Now the Reds have gone for the lightest object yet, the lampshade,
0:13:43 > 0:13:45which weighs only 225 grams.
0:13:45 > 0:13:47Ooh, there you go! That counts.
0:13:49 > 0:13:51Yellows, the umbrella.
0:13:51 > 0:13:56This is the lightest object still available, weighing only 350 grams.
0:13:57 > 0:14:00Andrea stepping forwards. Oh, no pressure(!)
0:14:00 > 0:14:04If she gets this, lads, you're going to be in a lot of trouble.
0:14:04 > 0:14:06- Am I allowed to hold it?- Yeah.
0:14:06 > 0:14:08Any means of getting it supported off there
0:14:08 > 0:14:13is allowable under the rules. Ooh! Well done! Well done!
0:14:15 > 0:14:17- Go.- Grab it. - Do you want to put it on?
0:14:17 > 0:14:20Going for the fire extinguisher. Oh, it's heavy. It's heavy.
0:14:20 > 0:14:24It certainly is. Weighing in at 1.4 kilograms.
0:14:25 > 0:14:29Ooh, ooh, it's a tricky one, it's a tricky placing.
0:14:29 > 0:14:31Ooh, well done, Yellows.
0:14:33 > 0:14:34Step forwards.
0:14:35 > 0:14:37Well done, a snap decision taken.
0:14:37 > 0:14:39A good decision, nonetheless,
0:14:39 > 0:14:44with the welly weighing only 800 grams, the lightest remaining item.
0:14:44 > 0:14:46Oh, look at that!
0:14:46 > 0:14:50Maya, possibly our coolest player today.
0:14:50 > 0:14:53Every time, just walks up, hangs it and walks off. Job done.
0:14:53 > 0:14:56The boys, oh, they've gone for the duck.
0:14:56 > 0:14:59I happen to know the duck is the third heaviest item.
0:15:00 > 0:15:01It's been weighted with sand.
0:15:01 > 0:15:04This could be a disastrous pick for the Reds.
0:15:04 > 0:15:06The duck weighs three kilograms.
0:15:06 > 0:15:09Will the phone books be able to hold its added weight?
0:15:09 > 0:15:11OK. Good luck, good luck.
0:15:11 > 0:15:13Ooh!
0:15:13 > 0:15:15CHEERING AND APPLAUSE
0:15:17 > 0:15:19It's a traffic cone.
0:15:19 > 0:15:22And it's not light, weighing 1.9 kilograms.
0:15:22 > 0:15:24Oh, absolutely beautifully done.
0:15:24 > 0:15:26If it'll hold the weight, this'll be an amazing...
0:15:26 > 0:15:28Oh, look at that!
0:15:30 > 0:15:32This is incredible.
0:15:32 > 0:15:36The two phone books are holding up just under 13.5 kilograms.
0:15:36 > 0:15:38Surely they can't take any more weight.
0:15:38 > 0:15:44- Oh, no. It's...- Oh, it's a whopper! 3.5 kilograms of drum going on.
0:15:44 > 0:15:46- Keep it up...- Oh! Oh!
0:15:46 > 0:15:48- Ooh!- Yes!
0:15:55 > 0:15:57Oh, it's Ninja Nan's shopping trolley,
0:15:57 > 0:16:00full of ninja fighting equipment.
0:16:00 > 0:16:03I think the heaviest item out here today.
0:16:03 > 0:16:06- That'd be magnificent. - Seven kilograms.
0:16:06 > 0:16:09Ooh, now make sure it's high enough to hang.
0:16:09 > 0:16:12It has to be suspended, it can't just... Oh!
0:16:12 > 0:16:15Oh! Argh!
0:16:17 > 0:16:20Although the pages managed to hold up just under 17 kilos,
0:16:20 > 0:16:24it was the added seven of the trolley that proved to much,
0:16:24 > 0:16:26bringing it crashing to the ground.
0:16:26 > 0:16:29Astonishing play from both teams.
0:16:29 > 0:16:32The point goes to the Reds. It makes the score 2-0.
0:16:32 > 0:16:34Well done. 2-0 to the Reds now!
0:16:38 > 0:16:42I never knew phone books could be so much fun, but let's get serious now.
0:16:42 > 0:16:44Seriously heavy, that is.
0:16:44 > 0:16:47It's time to go back in time for a bit of Blast Lab history.
0:16:49 > 0:16:52Legend has it that in the grounds of my secret lab...
0:16:54 > 0:16:56..there once lived two separate tribes...
0:16:56 > 0:16:59of idiots...
0:17:00 > 0:17:02..each as simple and pointless as the other,
0:17:02 > 0:17:05but with one noticeable difference.
0:17:07 > 0:17:11One group lived their lives devoted to the colour yellow
0:17:11 > 0:17:15and the other followed a red path to happiness.
0:17:17 > 0:17:21Needless to say, the two tribes did not mix.
0:17:22 > 0:17:25But the two tribes were not alone in the forest.
0:17:25 > 0:17:29There were others, creatures older than time itself.
0:17:29 > 0:17:34Although this one says he's not a day over 21. Likely story(!)
0:17:37 > 0:17:42Anyway, these mysterious elders wanted to end this division
0:17:42 > 0:17:44scarring the land and devised a plan
0:17:44 > 0:17:47to finally and for all time
0:17:47 > 0:17:51join the two colours, the two tribes, together,
0:17:54 > 0:17:57by simply taking the two tribes' colossal phone books
0:17:57 > 0:18:01and interleaving them closer than ever before,
0:18:01 > 0:18:03to create the ultimate bond.
0:18:05 > 0:18:07But how does it work?
0:18:07 > 0:18:09The pages of our books are actually very rough
0:18:09 > 0:18:12and so under a microscope,
0:18:12 > 0:18:13they would look like bumpy roads.
0:18:13 > 0:18:17When one page is slid over another, these bumps get caught on each other
0:18:17 > 0:18:20and so there is a small amount of friction.
0:18:20 > 0:18:22The more pages of the books we overlap,
0:18:22 > 0:18:25the more bumps get caught and so the more friction there is
0:18:25 > 0:18:28stopping the pages from sliding apart.
0:18:28 > 0:18:32When the two tribes found the books, the elders had added handles,
0:18:32 > 0:18:35encouraging them to try to pull them apart.
0:18:35 > 0:18:38The handles were not holding them together, though.
0:18:38 > 0:18:42The power of the pages was doing this alone.
0:18:42 > 0:18:45No matter how hard they tried,
0:18:45 > 0:18:48they could not undo what had been done by the elders.
0:18:48 > 0:18:51The power of the pages was too strong.
0:18:54 > 0:18:56But the two tribes still did not believe that it was impossible
0:18:56 > 0:18:59to separate the two books.
0:18:59 > 0:19:04Therefore, a final test of the power of the pages was set.
0:19:04 > 0:19:08One car with go-faster stripes, representing each tribe,
0:19:08 > 0:19:10would be attached to the books,
0:19:10 > 0:19:13which would in turn be attached to a crane.
0:19:13 > 0:19:16Yeah, obviously, they had cranes back in the olden times too(!)
0:19:18 > 0:19:20Then, using only the strength of the combined pages,
0:19:20 > 0:19:25they would attempt to lift the car from the ground.
0:19:25 > 0:19:27So will ultimate example of the combined strength
0:19:27 > 0:19:29of red and yellow be successful?
0:19:29 > 0:19:33Will the power of the pages be enough to completely lift the car
0:19:33 > 0:19:36clean off the ground?
0:19:36 > 0:19:40Hold the experiment, because things are just getting exciting here.
0:19:40 > 0:19:43We've seen how strong friction can be with phone books.
0:19:43 > 0:19:45Can it be that strong?
0:19:45 > 0:19:50What we're going to try and do is lift a car using friction alone
0:19:50 > 0:19:52and the pages in those phone books.
0:19:52 > 0:19:56They're not glued, stapled, nailed, taped, fixed. It's just friction.
0:19:56 > 0:19:59What do you think, teams? There's another point up for grabs.
0:19:59 > 0:20:00The score is 2-nil,
0:20:00 > 0:20:04but for the honour of competing, I think you should go for the point.
0:20:04 > 0:20:08- Yellows, what do you think? - We think that it won't.
0:20:08 > 0:20:13You think it won't support a car? OK, so you think it won't. Reds?
0:20:13 > 0:20:14We think it will. Yeah.
0:20:14 > 0:20:15The whole car? OK.
0:20:15 > 0:20:19Well, there's only one way to find out - carry on with the experiment.
0:20:19 > 0:20:20Let's have a look.
0:20:20 > 0:20:26The final test of the combined strength of red and yellow was set.
0:20:26 > 0:20:33One car. One crane. Two books...as one.
0:20:33 > 0:20:35But will nothing more than the layered pages of two phone books
0:20:35 > 0:20:38be strong enough to lift a car?
0:20:40 > 0:20:42The pages are taking the strain.
0:20:42 > 0:20:46Surely, friction can't lift a car weighing over 800 kilograms.
0:20:51 > 0:20:54Amazing! The power of the pages is so great,
0:20:54 > 0:20:57the car is safely hanging in the air.
0:20:58 > 0:21:00I can't believe it.
0:21:01 > 0:21:04The tribes can't believe it.
0:21:04 > 0:21:07Even the car is having trouble coming to terms with it.
0:21:07 > 0:21:11The friction created by interleaving more pages
0:21:11 > 0:21:15closer and tighter together led to this experiment being a success.
0:21:16 > 0:21:18Brings a tear to the eye.
0:21:18 > 0:21:22Therefore, another point to the Reds, bringing the score to 3-0.
0:21:23 > 0:21:25Wow! That is amazing.
0:21:25 > 0:21:29Just friction holding those books together and supporting a car.
0:21:29 > 0:21:32Of course, it does leave us with a problem, because I don't know
0:21:32 > 0:21:34how we're ever going to get those phone books apart.
0:21:34 > 0:21:35They're too tough.
0:21:37 > 0:21:38LOUD SMASH
0:21:38 > 0:21:40That'll solve that, then.
0:21:40 > 0:21:43OK, we must move on, because it's time for something...
0:21:43 > 0:21:46It rhymes with "yeti's dressy vest quest".
0:21:46 > 0:21:49And I can't...it's the... Hold on, it's the...
0:21:53 > 0:21:54Time for that!
0:21:54 > 0:21:56Which today involves, well, my own creation.
0:21:56 > 0:21:58My Snot Box.
0:21:58 > 0:22:01These robots produce more than 10,000 litres of snot a year
0:22:01 > 0:22:03from their noses.
0:22:03 > 0:22:06Try not to get too close, but you're going to have to for this game.
0:22:06 > 0:22:07Here's what's happening.
0:22:07 > 0:22:10In the tank with you, as well as a lot of robot snot,
0:22:10 > 0:22:11there are prizes.
0:22:11 > 0:22:14The team who gets the most discs in their Snot Box
0:22:14 > 0:22:16will win what is written on those prizes.
0:22:16 > 0:22:19The team who doesn't, well, we'll come to that later, don't worry.
0:22:19 > 0:22:23It's your jobs to get as many discs into those Snot Box open mouths
0:22:23 > 0:22:25as you possibly can.
0:22:25 > 0:22:27Be careful, because in there with you...are these.
0:22:27 > 0:22:30These discs not only don't count as a prize.
0:22:30 > 0:22:33You put one of these in the mouth of your Snot Box,
0:22:33 > 0:22:35it'll take one of your prize discs away.
0:22:35 > 0:22:38- OK, does everybody understand what you've got to do?- Yeah.
0:22:38 > 0:22:40Good luck, teams. May the best team win.
0:22:40 > 0:22:43The Reds have a five-second head start, so you go straight away.
0:22:43 > 0:22:46Yellows, you wait until you hear the klaxon, then you start.
0:22:46 > 0:22:50All right, both teams, good luck. As many prize discs as you can get.
0:22:50 > 0:22:55You have some time to do that, and that some time starts now!
0:22:57 > 0:22:58Reds up and running.
0:22:58 > 0:23:00Much like the metal noses of my Snot Box.
0:23:00 > 0:23:01KLAXON SOUNDS
0:23:01 > 0:23:05And there's the second siren bringing the Yellows into the game.
0:23:06 > 0:23:09The teams are determined, the competition is hot,
0:23:09 > 0:23:11the snot is green.
0:23:11 > 0:23:14Just a list of random facts I thought you should know.
0:23:17 > 0:23:20OK, the Red team having trouble with their Snot Box mouth closing.
0:23:23 > 0:23:24That's better.
0:23:28 > 0:23:32Reds scoring points already, but through the mucous haze,
0:23:32 > 0:23:35it looks like the Yellows are hot on their heels.
0:23:37 > 0:23:40Amazing how the Reds have an aversion to mushrooms,
0:23:40 > 0:23:43but seem to be taking to the pool of snot like ducks to...
0:23:43 > 0:23:44well, snot, I suppose.
0:23:49 > 0:23:51You really can't pick holes in the teams' dedication,
0:23:51 > 0:23:54much like the Snot Box can't pick their nostrils.
0:23:54 > 0:23:57Maybe I should have built them with some hands as well.
0:23:57 > 0:23:58Nah.
0:24:03 > 0:24:07Never has the world seen such a frenzy of snot-based insanity.
0:24:07 > 0:24:08Probably for good reason,
0:24:08 > 0:24:11for the teams are now resembling the pool party at the annual convention
0:24:11 > 0:24:13of mini Incredible Hulks.
0:24:13 > 0:24:17Normally held at a lido near Milton Keynes, if you're interested.
0:24:24 > 0:24:27Back to the competition. It is a fantastic contest
0:24:27 > 0:24:30between the two teams who will not surrender.
0:24:30 > 0:24:32Oh, hang on.
0:24:32 > 0:24:34I think their some time is over.
0:24:34 > 0:24:38KLAXON
0:24:39 > 0:24:41Time is up.
0:24:41 > 0:24:43So, Lab Rats, count them up, please.
0:24:43 > 0:24:45For the Yellow team, how many have we got?
0:24:45 > 0:24:50OK, we have a total of five prizes for the Yellows, well done.
0:24:50 > 0:24:52OK, so, the Red team.
0:24:55 > 0:24:57Six to the Reds!
0:24:57 > 0:25:00That means the Red team win, let's find out what you've won.
0:25:19 > 0:25:21Each of you Reds take each of those home.
0:25:21 > 0:25:25Yellows, let's find out what you would have won, had you won.
0:25:25 > 0:25:27That'll be nice.
0:25:27 > 0:25:29So, each of you would have won...
0:25:32 > 0:25:33AUDIENCE: Aw...
0:25:33 > 0:25:35Yeah, yeah, yeah.
0:25:35 > 0:25:37Perfume Factory, that would have been nice.
0:25:47 > 0:25:51The truth is, Yellows, you've worked hard enough to win all those.
0:25:51 > 0:25:54You were so close, but instead of winning them, here's the thing,
0:25:54 > 0:25:56you're going to blow them up, because it is time for
0:25:56 > 0:25:57Bidet Goes Bang!
0:26:07 > 0:26:12Reds, that's quite a lot, well done. You won.
0:26:12 > 0:26:16We'd like to give the Perfume Laboratory to the girls.
0:26:16 > 0:26:18The girls can have these? Oh, that's nice.
0:26:18 > 0:26:20- You go and hand them over. - Thank you.
0:26:20 > 0:26:25Hand them over. Reds, thank you very much.
0:26:25 > 0:26:27You can take that enormous haul home with you.
0:26:27 > 0:26:29That's really sweet of you, thank you.
0:26:29 > 0:26:31Yellows, you get something to take with you.
0:26:31 > 0:26:34Obviously, there were a lot of other things.
0:26:34 > 0:26:36Instead, what you're going to do is blow them up.
0:26:36 > 0:26:40Because it's time for the Walk of Shame. Follow me, girls. Here we go.
0:26:45 > 0:26:47It breaks your heart.
0:26:59 > 0:27:01Girls, if you'd like to lift the plunger.
0:27:01 > 0:27:03Right, we'll count them in, OK, audience?
0:27:03 > 0:27:06Five, four, three
0:27:06 > 0:27:08two, one.
0:27:14 > 0:27:16You were lovely sports, well done.
0:27:16 > 0:27:19Today, we've learnt about friction, and seen how you can use
0:27:19 > 0:27:21two plain old phone books to lift a car.
0:27:21 > 0:27:23I now intend to put those phone books to another good use
0:27:23 > 0:27:26by finding the number of a local pest control company.
0:27:26 > 0:27:29I have a nasty rat infestation I need to get rid of.
0:27:29 > 0:27:30Ta-ta for now. See you again.
0:27:54 > 0:27:58Subtitles by Red Bee Media Ltd
0:27:58 > 0:28:01E-mail subititling@bbc.co.uk