00:01Glue
00:09Nolik, let's split up!
00:15We're one cool team, am I right?
00:17Nuh-uh!
00:18Why not?
00:19We're the mega-super-duper-coolest team on the planet!
00:22What do you say we do everything together?
00:24And never ever fight with each other?
00:26Alright!
00:28Children, if you look right here, you can see that the handle has broken off the professor's favorite mug.
00:34And it's our duty to fix it by gluing it back on.
00:39Here they are, the inseparable friends!
00:42Quiet down!
00:43Since the two of you were late today, why don't you go fly over to the warehouse for us and get the glue?
00:49Yes, sir!
00:50Yes, sir!
00:52They crack me up!
00:54Is there any glue left in there?
00:58Nolik, try jumping on the tube a little.
01:04Great!
01:05There's plenty!
01:06Our super-duper team has done some super-excellent work!
01:10What's going on?
01:11Our hands are stuck!
01:13We've got to pull!
01:14We've got to pull the glue!
01:15Aye-yi, this glue is sticky!
01:21With the help of glue, you can stick almost anything together.
01:24Paper, plastic, glass, rubber, wood, and even metal!
01:29The reason that glue works is because everything, even an ordinary sheet of paper, has a rough surface.
01:35Just look at those pits and ridges!
01:37If we take two sheets of paper, fill those pits with glue, and press them together, the molecules of the glue will start joining with one another.
01:45After that, all that's left is for the glue to dry!
01:52Now what?
01:54How about we fly like this?
01:55Good idea!
01:56Everyone will laugh at how funny we are!
02:00Heads up, everybody!
02:03Mission complete!
02:05Well done!
02:06Take your places.
02:08And put your hands on your desk!
02:10We can't do that! We've got glue together!
02:12It's alright! Come on over here!
02:14We don't want you to take our hands apart!
02:15We're sure this glue is going to make our friendship stronger, right?
02:19You really think friendship can be measured like that?
02:23Jump!
02:30One, two, three, yeah!
02:34One, two, three, yeah!
02:35Come on, I need to go over there!
03:04Well, I need to go over there!
03:15It's your fault we got into this mess!
03:16Mine? And who was the one that told me to jump?
03:19Enough! I'm done with your nonsense!
03:21From now on you're not my friend!
03:23And you're not mine, alright?
03:34No leg! Fire!
03:45Like many of the common substances people use, glue was invented by nature itself.
03:50For example, fish glue their eggs together,
03:53and mollusks produce a sticky liquid that lets them stick to any surface.
03:57A spider smears glue on its web.
04:00A swift uses saliva to bind its nest,
04:03while caterpillars use their saliva to spin their cocoons.
04:07The sap from a pine or a birch tree is glue,
04:10and an egg's sticky whites can be used as a base for glue.
04:13But today, most of the glues that people use are made in factories.
04:18When working with glue, it's important to air out the room from harmful fumes,
04:22and to follow all other safety instructions.
04:25And try not to get glued to anything!
04:27It might be very hard to tear yourself away from it!
04:32Nolik! Hang on!
04:42Fire! You just saved me!
04:44But how come we got unstuck?
04:46Maybe it was bad glue?
04:48No.
04:49We were trying to get you disattached for so long
04:52that the glue lost the adhesive properties it had.
04:54And our friendship?
04:56Did it also lose its properties?
04:58You know what, Nolik?
04:59I'm sorry.
05:00We don't need glue to make our friendship stronger.
05:03Peace!
05:04Peace!
05:06Uh-oh!
05:11Concrete
05:13When will you be back from your fishing trip?
05:15Before dinner!
05:16So you won't have time to hang up the mirror again?
05:19If it's not one thing, it's another.
05:23We were just planning to hang it right now.
05:26It'll only take us two minutes and then we'll go fishing!
05:31Papus!
05:34What do you want, Nolik?
05:35When am I going to go on a fishing trip with you?
05:37You know Fixies don't go fishing!
05:39But you promised me that today we will go and visit the aquarium!
05:44I was only planning on going there to clean it.
05:47So let's go fishing while we're at it!
05:49We'll pretend!
05:50Papus, please!
05:53Okay, Nolik.
05:55But we'll just pretend to.
05:56Hurray!
05:58You're the best Papus ever!
06:03Nah, those won't work.
06:05Why won't they?
06:06Because our walls are concrete.
06:08They're much too hard for nails.
06:12See that?
06:13It's gonna need to be drilled.
06:14I guess we'll need to use a special drill bit that's right for this wall.
06:28Concrete is a very strong building material made out of small stones, sand, cement, and water.
06:35When the concrete mixture dries, it becomes very hard, like a solid piece of rock.
06:42For building houses, bridges, and other large constructions, reinforced concrete is what people use.
06:49To reinforce the concrete, it is poured into a mold with steel bars.
06:53When you drill into a reinforced concrete wall, you have to be careful not to hit the metal bars.
07:03Papus!
07:04Shh! Humans!
07:07Not big enough. It won't hold up this mirror.
07:10But it's all we've got!
07:12So we'll have to go and buy another.
07:14That stinks!
07:15Means there's no time to go fishing now.
07:18Actually, I think this will hold it for a little while.
07:27That looks great!
07:28So, ready?
07:33Let's go!
07:37Papus!
07:37Do we own fishing rods?
07:39We don't, but we'll figure it out.
07:47I really don't like how that mirror is hanging.
07:50That's what happens when people are in a rush to finish.
07:58We're Fixies.
07:59We never do things like that.
08:01Papus, we're going fishing or not?
08:04Yes, we will.
08:05After we take care of this mirror.
08:06Let's go!
08:14In ancient Rome, volcanoes helped make concrete.
08:17After they erupted, people would mix the volcanic ash with stones, lime, and sand.
08:23This concrete was used in many of the famous buildings constructed in that time.
08:28For instance, the Pantheon with its concrete dome.
08:31And this one is the famous Colosseum.
08:34It was also made with concrete.
08:36The Colosseum is almost 2,000 years old, but it's still standing strong.
08:41Later, when that land was conquered by other nations, people forgot about concrete and how to make it.
08:47Thank goodness that 200 years ago they suddenly realized what a great material it is,
08:53and they reinvented concrete.
08:55It's true when they say all everything new is well-forgotten old.
09:04Papus, carry-up!
09:06Haste is the mother of imperfection.
09:12It looks like I ran out of wire.
09:14Lousy timing.
09:15I've got to get to the warehouse.
09:17Warehouse?
09:19That means we're not going fishing.
09:22Nolik, a promise is a promise and that means we go.
09:27This should hold for a little while.
09:35It's funny, we almost left without the fishing rods.
09:45Don't panic!
09:47We did a good job of anchoring.
09:50Remember what I said?
09:52Haste is the…
09:57Yeah.
10:00Yeah, I'm not hearing things.
10:02Looks like a trip to the store after all.
10:05For screws?
10:05Yeah, and a brand new mirror.
10:07It looks like today's fishing trip is canceled.
10:12And ours is too, Nolik.
10:14At least the fish will be happy.
