Recorded Delivery <a href=" http://sskwebben.se/patrik-bylund/patrik-300x600/#bun ">proair hfa albuterol sulfate uses</a> Of course in space there isn&rsquo;t any air, let alone water or wood, for the sound waves to travel through. So if you shouted in space, and you weren&rsquo;t wearing a helmet, your vocal cords wouldn&rsquo;t have anything to make pressure waves in, and so wouldn&rsquo;t make a normal shouting sound. If you shouted inside your space helmet, you would hear a proper shout, because the sound waves would have some air to travel through before they reached your ear. But here&rsquo;s the weird bit. Other astronauts that happened to be with you wouldn&rsquo;t hear a thing, because there wouldn&rsquo;t be any air to carry your shout to them.