Acoustic Levitation in ULTRA SLOW MOTION - Smarter Every Day 134 | Summary and Q&A

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April 29, 2015
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SmarterEveryDay
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Acoustic Levitation in ULTRA SLOW MOTION - Smarter Every Day 134

TL;DR

Using high-frequency sound waves, objects like Styrofoam balls and drops of water can be suspended in mid-air.

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Questions & Answers

Q: How does acoustic levitation work?

Acoustic levitation works by using sound waves to create standing waves, which results in pockets of high pressure that can suspend objects in mid-air.

Q: What types of objects can be levitated using acoustic levitation?

Objects such as Styrofoam balls and drops of water can be levitated using acoustic levitation.

Q: Why do water drops explode when using acoustic levitation?

Water drops explode when the pressure becomes too great, overcoming the surface tension that holds the drop together.

Q: Can acoustic levitation be used for practical applications?

Acoustic levitation has potential applications in fields such as pharmaceuticals, materials science, and transportation, where objects need to be manipulated without physical contact.

Summary & Key Takeaways

  • Acoustic levitation uses sound waves to counteract the force of gravity and suspend objects in mid-air.

  • By creating standing waves, where two identical sound waves line up perfectly, a pocket of high pressure is formed and can keep small objects floating.

  • Acoustic levitation can be used to levitate and manipulate objects such as foam balls and drops of water. Exploding water drops occur when the pressure becomes too great.

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