I built an acoustic LEVITATOR! Making liquid float on air | Summary and Q&A

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December 14, 2017
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Physics Girl
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I built an acoustic LEVITATOR! Making liquid float on air

TL;DR

Researchers at the University of Bristol have developed a DIY acoustic levitator kit that allows anyone to levitate objects using sound waves.

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Key Insights

  • πŸ‘» Acoustic levitation allows for levitating a wide range of materials, making it a versatile technique.
  • πŸ‘» The DIY acoustic levitator kit from the University of Bristol democratizes the technology, allowing anyone to build and experiment with it at home.
  • πŸ‘ Acoustic levitation has practical applications in fields such as medicine, electronics, and materials science.
  • 🀩 The 3D printed base and specific positioning of speakers are key factors in creating a perfect 3D wave profile for levitation.
  • πŸ’¦ Researchers are working on overcoming challenges such as levitating larger particles and manipulating multiple particles individually.
  • πŸ’¨ The DIY levitator kit is a fun and educational way to understand the principles of acoustic levitation and physics.
  • β›” Acoustic levitation provides an alternative to magnetic levitation, as it can levitate any material within certain limits.

Transcript

[MUSIC PLAYING] DIANA COWERN: Thank you to 23andMe for supporting PBS Digital Studios. It sounds terrible. It does. I guess you go more that way. We might want to try-- Something's wrong. --messing around with these wires too, you know. Let's turn it off. Hey, I'm Diana. [COUGH] [GROANING] We're going to get through this. I'm Diana. You're wat... Read More

Questions & Answers

Q: How does acoustic levitation work?

Acoustic levitation involves using sound waves from multiple speakers to create a standing wave, which can hold objects at specific points called nodes.

Q: What materials can be levitated using acoustic levitation?

Acoustic levitation can be used to levitate a wide range of materials, including liquids, powders, electronic components, and even insects.

Q: How is the DIY levitator kit different from other levitators?

The DIY levitator kit uses a 3D printed base and specific positioning of speakers to create a perfect 3D wave profile, allowing for easy construction and experimentation at home.

Q: What are the challenges in acoustic levitation research?

Researchers are currently working on levitating particles that are larger than half the wavelength and manipulating multiple particles individually.

Summary & Key Takeaways

  • The University of Bristol has created a DIY acoustic levitator kit that allows users to levitate objects using sound waves.

  • Acoustic levitation involves using sound waves from multiple speakers focused on a point to levitate objects in mid-air.

  • The kit, which includes a 3D printed base and specific positioning of speakers, allows for easy construction and experimentation at home.

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