Caption: This strange-looking cage can hide an object inside it from being detected by sound waves.
Credit: L. Sanchis et al
5 comments:
Dylan
said...
I was very interested in the article after i learned that A light wave scatters when it hits an object. That means the wave breaks, moving in a different direction. I also liked the article after i learned that you can only see things when a part of the wave reaches your eyes.
Wow they could make headphones that completely reduce sound! Or they could work with the people who are making things that are invisible to microwaves and figure out how to make an invisibility cloak as Dylan said.
This is pretty interesting. I didn't know that an object so small could be so affective. It's sort of like a cell phone. Cell phones are pretty small, but they allow you to talk to someone all the way across the country, and they are very successful. Maybe this new device will be successful as well! When tug-of-war was mentioned, it made me think about sound - if there were two people, one on each side of the room, and they were both yelling at the same time, at the exact same volume, if the sound would just stop, but obviously it doesn't. What I mean by stop, is like the tug-of-war analogy - if both people are pulling on one end of the rope each, the rope won't go anywhere. It's probably like that for solid objects only. This could be helpful in big cities like New York City because there is so much commotion and noise that sometimes people might want some peace and quiet, but how would this small device be enlarged, and how would it be able to be installed around a building, or on a building? This article was really interesting, and I want to learn more about this subject.
I learned a lot about sound and light waves. I think the invention is really cool and could be very successful after some modifications. When the article said that you see something by the light waves coming onto an object and reflecting into your eyes, I wondered if you could make an invisibility cloak the same way the sound cloak works, where the material sort of absorbs the waves and they don't bounce back.
5 comments:
I was very interested in the article after i learned that A light wave scatters when it hits an object. That means the wave breaks, moving in a different direction. I also liked the article after i learned that you can only see things when a part of the wave reaches your eyes.
A very clever thing that they do is that they build invisibility cloaks, or complex materials that prevent scattered light from reaching your eyes.
Wow they could make headphones that completely reduce sound! Or they could work with the people who are making things that are invisible to microwaves and figure out how to make an invisibility cloak as Dylan said.
This is pretty interesting. I didn't know that an object so small could be so affective. It's sort of like a cell phone. Cell phones are pretty small, but they allow you to talk to someone all the way across the country, and they are very successful. Maybe this new device will be successful as well!
When tug-of-war was mentioned, it made me think about sound - if there were two people, one on each side of the room, and they were both yelling at the same time, at the exact same volume, if the sound would just stop, but obviously it doesn't. What I mean by stop, is like the tug-of-war analogy - if both people are pulling on one end of the rope each, the rope won't go anywhere. It's probably like that for solid objects only.
This could be helpful in big cities like New York City because there is so much commotion and noise that sometimes people might want some peace and quiet, but how would this small device be enlarged, and how would it be able to be installed around a building, or on a building?
This article was really interesting, and I want to learn more about this subject.
I learned a lot about sound and light waves. I think the invention is really cool and could be very successful after some modifications. When the article said that you see something by the light waves coming onto an object and reflecting into your eyes, I wondered if you could make an invisibility cloak the same way the sound cloak works, where the material sort of absorbs the waves and they don't bounce back.
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