Found 30 - 40 results of 47 programs matching keyword "low-frequency sound"


AfterSchool Activities:  Cuica Activity: Step-by-Step Demonstration (Clip)
Running Time:
00:06:39
A detailed demonstration of how to make this small friction drum, including a discussion of materials needed and how different kinds of materials make for cuicas that produce different sounds.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound activity, sound experiment, music, musical instrument, sound, hearing, ear, brazil, percussion, carnival, friction, resonance, echo, afterschool

Links: Download activity instructions
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AfterSchool Activities:  Cuica Activity: What's Going On (Clip)
Running Time:
00:01:30
The science behind this musical instrument, including the concepts of sound, vibration, resonance, and amplification.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound activity, sound experiment, music, musical instrument, sound, hearing, ear, brazil, percussion, carnival, friction, resonance, echo

Links: Download activity instructions
Going further
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AfterSchool Activities:  Sound Sandwich Activity: Introduction (Clip)
Running Time:
00:00:24
An introduction to a crowd-pleasing noisemaker called a sound sandwich, which you can adjust to raise or lower its pitch.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound, sound activity, sound experiment, vibration, hearing, ear, pitch, music, afterschool

Links: Download activity instructions
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AfterSchool Activities:  Sound Sandwich Activity: Step-by-Step Demonstration (Clip)
Running Time:
00:02:32
A detailed demonstration of how to make this primitive wind instrument using little more than a straw, two craft sticks, and some rubber bands.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound, sound activity, sound experiment, vibration, hearing, ear, pitch, music, afterschool

Links: Download activity instructions
Going further
Download concept map

Watch Now
AfterSchool Activities:  Sound Sandwich Activity: What's Going On (Clip)
Running Time:
00:01:48
The science behind this instrument, including a discussion of how vibration produces sound, and how long, massive objects vibrate slowly and produce a low-pitched sound, while shorter, less massive objects vibrate quickly and produce a high-pitched sound.

Project: AfterSchool Activities | Browse All

Date: January 14, 2008
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science

Keywords: sound, sound activity, sound experiment, vibration, hearing, ear, pitch, music, afterschool

Links: Download activity instructions
Going further
Download concept map

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Doctor Atomic:  The Opera Singer and the Physicist (Podcast)
Running Time:
1:17:34
How do opera singers sing loud enough to be heard over an orchestra? Can an opera singer's voice really break a wine glass? What's the difference between a baritone and a soprano? Discover the answers to these questions—and more!—in this presentation for families. Join physicist and composer Dr. Brian Holmes and San Francisco Opera Center Director Sheri Greenawald to explore how the art and science of singing combine in opera.

Project: Doctor Atomic | Browse All

Date: October 8, 2005
Format: Interview
Category: Science in Action
Subject(s): Everyday Science

Keywords: human vocal chords, science of singing, physics of singing, physics of opera, physiology of vocal sounds, vocal projection, projecting your voice, human vocal folds, opera physicist, science of opera, vocal frequency, vocal resonance, vocal tract, articulation, vocali


Real: 33K  

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Origins: Astrobiology:  Live from Licancabur Volcano in Chile (Webcast)
Running Time:
00:32:56
Nathalie Cabrol, Planetary Scientist, Principal Investigator at NASA Ames Research Center and the SETI Institute, looks for Mars analogs in extreme environments on Earth. She found one at the world’s highest lake at Chile’s Licancabur volcano, site of a unique analog to ancient Martian lakes. We chat with Dr. Cabrol as she investigates the life forms at Licancabur.

Project: Origins: Astrobiology: The Search for Life | Browse All

Date: November 16, 2003
Format: Interview
Category: Science in Action
Subject(s): Life Science/Biology

Keywords: astrobiology, fundamental features of life, life beyond earth, biochemistry, extremophiles, extreme environments, microbes, bacteria, ecosystems, organisms, complexity of life, microbial life in extreme environments, life at low temperatures, stromatilites,


Real: 256K  
Iron Science Teacher:  Halloween Edition: Plastic Bags (Webcast)
Running Time:
00:55:27
Watch as Exploratorium staff and local teachers compete for the title of Iron Science Teacher. Each contestant has 10 minutes to make a science lesson out of a secret ingredient. In this special Halloween edition, today's secret ingredient is: Plastic Bags!

Project: Iron Science Teacher | Browse All

Date: October 31, 2003
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science, Physics

Keywords: vaccuum sealing, air pressure, perception of touch, tactile sense, bubble bomb activity, carbon dioxide production, acids and bases, 5-tone whirlies, quantum music, corrugated plastic pipes, resonance, sound waves, bagpipes, air speed


Real: 256K  
Science Wire:  Biometrics: Vox Unlocks (Webcast)
Running Time:
00:11:16
Our team of middle school students from the Aim High program investigates new technologies that use our unique physical traits as tools for identification. Vox Unlocks tunes into voice recognition

Project: Science Wire | Browse All

Date: November 5, 2002
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): Life Science/Biology

Keywords: voice recognition technology, voice verification, vocal chords, vocal vowels exhibit, vocal vowels floor exhibit, pitch switch exhibit, pitch switch floor exhibit, voice characteristics, sound waves, vocal characteristics,


Real: 256K  
Science Wire:  Echo-Logic (Webcast)
Running Time:
00:41:34
Produced by students from San Francisco's Aim High Program. Today they ask, how do our ears work? Can we communicate without words? How do whales communicate under water? Why don't bats slam into trees as they fly? Middle school students will interview Exploratorium Educator Ken Finn and Biologist Dr. Karen Kalumuck, plus special surprise guests!

Project: Science Wire | Browse All

Date: May 18, 2002
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): Life Science/Biology

Keywords: sonar, human hearing, sound location, science of music, guitar science, paul dresher ensemble, chromatic quadrachord instrument demonsrtation, nocturnal animal sounds, underwater animal sounds, whale song, production of sound, animal echolocation, low-frequency sound


Real: 256K  
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