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A typical football helmet is not bullet proof but someone could create a bullet proof football helmet.
Sound proofing a wall can be done in many ways. In general, extra materials, such as extra drywall, and sound proof material that can be put on the wall will sound proof a wall.
No. There is really no one material that is sound proof. Many materials can reduce sound levels, but reducing sound is not what you might think of when you hear sound proof.
yes it is
Because sound needs particles to travel through ; when a sound from inside one helmet is made, the particles vibrate the surrounding particles therefore vibrating the other astronauts helmet particles ( as they are touching) allowing him to hear the sound.
the material that was used.
A sound proof wall.
The cast of Sound Proof with Leah Rose - 2008 includes: Maino
I have a Texaxo Play helmet with battery operated sound mic and speaker in like new condition. Interested in its value
No. The word proof has a long OO (long U) sound as in roof.The long O (oh) is seen in the word profess.
Some possible options for sound insulation between walls are the use of the following sound proof materials; sound insulation wall layer, curtain walling, the soni protector sound proofing panels, foam and sound proof rubber.