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- Episodiu 1 Flight
- Episodiu 2 Earth's Crust
- Episodiu 3 Dinosaurs
- Episodiu 4 Skin
- Episodiu 5 Buoyancy
- Episodiu 6 Gravity
- Episodiu 7 Digestion
- Episodiu 8 Phases of Matter
- Episodiu 9 Biodiversity
- Episodiu 10 Simple Machines
- Episodiu 11 The Moon
- Episodiu 12 Sound
- Episodiu 13 Garbage
- Episodiu 14 Structures
- Episodiu 15 Earth's Seasons
- Episodiu 16 Light & Color
- Episodiu 17 Cells
- Episodiu 18 Electricity
- Episodiu 19 Outer Space
- Episodiu 20 Eyeball
79 Viste
Listen up, scientists. Bill Nye is here to make some noise in the ""Sound"" episode. Your vocal cords do it. Speakers playing rock music do it. Even a school bell does it. They all vibrate; and that's how sound is made. Plucking a stretched rubber band makes the rubber band vibrate. Air molecules around the rubber band move, pushing other air molecules. As the rubber band continues to vibrate, it sends waves of sound through the air. It's a lot like the ripples you see when you drop a rock into a pond. You hear sound when rippling air pushes on tiny bones in your ears. Nerves in your ears send a message to your brain about the sound you're hearing. Different sounds make different patterns of waves with different distances between them. Plucking, banging, whispering, and yelling are all vibrations in air, yet they all sound very different. Sound vibrations can be thought of as waves moving through molecules. Low-pitched sounds have big gaps between waves, while high-pi
Genre: Comedy, Documentary, Kids
Cast: Bill Nye, Rachel Glenn, Jennifer Lin, Amy Broder, Ethan Ferkiss
Crew: Lynn Brunelle (Writer), Michael Gross (Writer), Bill Nye (Writer), Erren Gottlieb (Writer), Hamilton McCulloch (Producer), Darrel Suto (Writer)
Paese: United States of America
Studio: PBS
Runtime: 26:14 minuti
Qualità: HD
First Air Date: Sep 10, 1993
Ultima data d'aria: Jun 20, 1998
Episodiu: 100 Episodiu
Stagione: 5 Stagione
IMDb: 3.8
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