00:00Way, way up, where the planets do the hula. Spin and shot till you find yourself on Zula. Let's take
00:07off, we're all ready to go. It's fun to learn with the Zula Patrol.
00:12Wake up, Gorgoth, it's time to play. Come on, Captain Bula, it's welcome the day. Where's that cheater? Ready to
00:21go. Whizzy and Wig are good to glow. Beakers bubbling, turning blue. Molto's making something new.
00:31Way, way up, where the planets do the hula. Spin and shot till you find yourself on Zula. See you
00:39around, Poles at Mission Control. It's fun to learn with the Zula Patrol.
00:44Way, way up, where the planets do the hula. Spin and shot till you find yourself on Zula. See you
00:52around, Poles at Mission Control. It's fun to learn with the Zula Patrol.
01:05The Cosmos, the original wide open spaces.
01:10Hey, watch it!
01:12The Cosmos, the original wide and very busy open spaces.
01:22These are the 9th, 10th and 11th truckloads that have come back unsold.
01:28Why won't anyone buy my Delirium musical instruments?
01:31Possibly, Madame Deliria, because they sound like burping ducks.
01:37Oh, nonsense!
01:39The public wants what I tell them to want.
01:42There must be a way to get them to buy, buy, buy!
01:47Start pacing, Floyd. I've got a lot of thinking to do.
01:56Hi, Zeter. Has Molto stopped practicing the harp yet?
02:00I can't hear you!
02:01What? I can't hear you!
02:04Oh, I'll just check for myself.
02:13It's great that Molto's been invited to play at the Zula Festival for the easily entertained.
02:18Yeah, but he's been practicing for a very long time.
02:22And it still sounds like... like that!
02:25Where does sound come from, anyway?
02:27Time for the Molto-pedia!
02:32Sound is caused by an object vibrating, which means the object is moving back and forth.
02:38Oh! Like our wings?
02:40Correct! And the vibration of an object, like your wings, causes the air to move back and forth, too.
02:46When you drop a pebble in a pond, it causes ripples, tiny waves to spread out across the surface of
02:52the water.
02:53Sound moves through the air the same way.
02:56But instead of waves of water, the waves are invisible waves of air.
03:00They're caused by the air vibrating or moving back and forth, and those waves are called sound waves.
03:07To test it, just talk into your hand. Say something like, pop, and feel the air move.
03:13Pop! Wow! I did feel the air move.
03:17But Molto's harp doesn't have a mouth, so how can it make sound?
03:21Sound can be made in many different ways, Wizzy.
03:24Now, look really closely at the strings of this harp.
03:27See? When you pluck a harp string, it vibrates, moves back and forth.
03:32That vibration is what causes the sound.
03:36Sound can also be caused by hitting something hard enough to make it vibrate.
03:41Like a drumstick hitting a drum.
03:43The drumstick makes the drum skin vibrate, and we get sound!
03:47You don't have to hit or pluck something to make a sound.
03:51With a saxophone, all you do is blow on a tiny reed to make it vibrate and produce a super
03:57cool sound.
03:59The vibrations caused by the harp string, drum skin, and saxophone reed all travel through the air in sound waves
04:06to our ears.
04:07Cool, Daddy-o!
04:10It's the Zula alarm!
04:12Come on!
04:19Hi, Iris! What's the emergency?
04:22A swarm of Zulean music munchers was spotted heading this way!
04:26Music munchers?
04:27A rare kind of locust that eats musical instruments!
04:31Usually they live in the Zulean wilderness, feeding on discarded tubas.
04:35If nobody stops the music munchers, there won't be a single musical instrument left on Zula!
04:40This is a job for the Zula patrol!
04:44What I don't get is, if sound is just vibrations, then why do some sounds sound really high?
04:58I've got a signal on the scanner!
05:01A whole swarm of music munchers dead ahead!
05:09Follow me, my music munching minions, for a musical feast!
05:15With me leading the way, you'll eat every musical instrument in every home store and factory on Zula!
05:22Then Zulaans will be forced to buy all their musical instruments from me!
05:32Come, we'll go a music munching!
05:35To a feast of rare delight!
05:38Saxophones and flutes for luncheon!
05:41Every instrument in sight!
05:43Have an oboe appetizer!
05:46Then a piccolo putté!
05:49Zula will be number wiser, as munch a horn buffet!
05:55With each little string vibration, pretty sound waves move the air!
06:01And in toward their destination, it's really more than I can bear!
06:08B-Madam!
06:09Cloyd!
06:10I told you not to interrupt me in the middle of my musical number!
06:13Sorry, madam.
06:14I was wondering if you'll be wanting lunch, or are you just going to eat a cello?
06:19Maybe later!
06:20Admit it, Cloyd!
06:22It was positively brilliant of me to get these music munchers to come out of the wilderness with my accordion
06:27version of Polly Wolly Doodle!
06:29They couldn't resist!
06:31Who could, madam?
06:35I know this will work!
06:37Music munchers love certain songs, and their favorite is Polly Wolly Doodle!
06:42If we play it, we'll be able to lead them back to where they came from!
06:46Everyone, tune up!
06:53Hey, Wizzy, look!
06:54The strings on Zeta's bass are blurry when she plucks them!
06:58I bet that's because they're vibrating!
07:00You're right!
07:01But the low-sounding string is more blurry than the high-sounding string!
07:05I wonder why!
07:07There's the music munchers!
07:09Ready?
07:16No! Stop!
07:18Where are you going?
07:19You're supposed to be following me!
07:22Clyde!
07:23Yes, madam?
07:25Do something!
07:27Thou and I always...
07:33Follow me, my little munchers!
07:39That was Deliria's limo!
07:41We should have known she had something to do with this!
07:44They're heading for the city!
07:45We've got to split up and try to save as many musical instruments as possible!
07:50Do something!
07:57The cast is the lead for the fans!
07:59Yeah!
08:07Don't you think it's a big part?
08:07Go, Go!
08:09Go, Go, Go!
08:10Go, Go, Go!
08:11Go, Go!
08:13Go, Go, Go!
08:14Go, Go, Go, Go, Go!
08:16Go, Go, Go, Go, Go!
08:19Sorry we didn't get here sooner, but we managed to save this.
08:24Look! Just like Zeter's base,
08:26the low-sounding string is more blurry than the high-sounding string.
08:30Here's Molto's magnifier from the ship.
08:35The high-sounding string is vibrating fast.
08:39And the low-sounding string is vibrating slowly.
08:42Woo!
08:46Hey!
08:46Zula, it's no use. We can't stop the Music Munchers.
08:51Maybe Molto would know how.
09:00That's strange.
09:01The Music Munchers aren't touching Molto's harp.
09:04Yeah, it's almost like they're scared of the sounds he's playing.
09:09Hey, if Molto's playing scares the Music Munchers,
09:12what would happen if we play his music all over Zula
09:16for all the Munchers to hear?
09:33Stop!
09:34Come back!
09:35You insect ingrates!
09:37What are you afraid of?
09:39There are more instruments to eat!
09:47The Music Munchers have all gone.
09:50Whatever you did, darlings, it worked.
09:53Yeah!
09:54Awesome!
09:56Why, thank you.
09:57That's very kind.
09:59I was going to take a break from practicing,
10:02but if you like, I'll keep playing!
10:04No!
10:05I mean, I have to rethink this.
10:08Great, but, um, er, I gotta, uh, recalibrate the Zingflop-A-Fire.
10:14And I've gotta wash the Wickel-Bab!
10:21Hey, the low string is blurrier than the high string,
10:25just like the banjo and bass.
10:27I bet the low-sounding string vibrates slower than the high-sounding string.
10:32Why, that's absolutely right, Wizzy.
10:35The highness or lowness of a sound is called its pitch.
10:39Through the magnifier,
10:41you can see that when something vibrates slowly,
10:44like this low string, we get a low pitch.
10:47And when it vibrates fast,
10:49like one of these short harp strings,
10:51we get a high pitch.
10:53See?
10:53So, fast vibration means a high pitch.
10:58And slow vibration means a low pitch.
11:02And that reminds me of a song!
11:07That doesn't remind me of a song.
11:11Oh, what a world!
11:13What a world!
11:14My brilliant land!
11:17Ruined!
11:18I'm afraid I have some more bad news, madam.
11:22Some of the music munchers appear to have followed you home.
11:25I expect they're quite hungry after their long flight.
11:28Hungry?
11:29I don't have anything for them to eat.
11:32Except for those...
11:35Flying!
11:38Do something!
11:40Anyone got directions to the nearest drive-thru?
11:43I'm starving!
11:52Time for a multi-moment.
11:55Do you remember what creates sound?
11:58Yeah.
11:59My mother when I don't clean my room.
12:01Oh-ho-ho-ho-ho, my, no!
12:03Sound is caused by an object vibrating or moving back and forth.
12:07This creates invisible sound waves that move through the air the way ripples move across water.
12:14How high or low a sound is, is called its pitch.
12:18When something vibrates slowly, like this low string, we get a low pitch.
12:24And when it vibrates fast, like one of these short harp strings, we get a high pitch.
12:30Well, that's the high and low of it.
12:33Bye for now!
