Physics Project
Storyboard Text
- Hey Logan!!... Wouldn't it be cool if we could talk with only one of us being out of the water?
- Hey!! Yes It sure would!!!
- Well... You know scientists have come up with a new metamaterial (which is just a special material that can do things normal ones cant) and it can help us do that
- No way! Ithink I have heard of that!
- A normal conversation has an amplitude of about 60 decibels. underwater that is not able to be heard. At 165 decibels is where you would be able to hear something from underwater if you were above the water, but by matching the frequencies of the waves you scientists have found that under water communication to air can be possible.
- It’s a small cylinder with a rubber membrane stretched across a metal frame that floats o top of the water. When underwater sound waves hit the device, its frame and membrane vibrate at finely tuned frequencies to help sound transmit into the air.
- Normally, just 0.1 or 0.2 percent of sound waves can penetrate the water/air barrier, but in testing their new device, the researchers found that it increased sound transmission to the extent that up to 30 percent of waves got through.
- CAN YOU HEAR ME??
- HAHAHA! What did you say??
- So why would people need this device?
- Theoretically It could be used to help with human communications between people in the water and those above the surface like Marco Polo!! It could also be used to listen to marine life.
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