Can you hear noise in a vacuum

And the lack of that a high vacuum could be helping the sounds travel. There's also the size of his experiment. Cody's chamber is small, he needs to have close proximity to the chamber walls which are prevent the gasses from dissipating far.

In a second video on the subject, he expands on that line of thinking a bit and how, perhaps, we're not hearing traditional sound waves, but rather the expanding gas from the explosion slamming up against the camera and microphone in close quarters:. The trick to a more thorough experiment? A much, much larger vacuum chamber, and with enough donations through Patreon , maybe we'll see yet another follow up.

Or maybe we won't really know until someone builds a Death Star, blows it up, and someone's there to listen. Source: Cody's Lab. Type keyword s to search. Today's Top Stories. Why the U. Could Best China in the Indo-Pacific. The 9 Best Robotics Kits for Kids. Cody's Lab. That might not mean there can't be things that seem like sound, however, as this janky little DIY experiment from Cody of Cody's Lab seems to illustrate: This content is imported from YouTube.

You may be able to find the same content in another format, or you may be able to find more information, at their web site. Light travels in waves, and, like sound, can be slowed depending on what it is traveling through. Nothing can outpace light in a vacuum. However, if a region contains any matter, even dust, light can bend when it comes in contact with the particles, which results in a decrease in speed.

Below the surface, sound waves pass directly through the water and into your head. For starters, sound travels through water five times faster than it travels through air. Setting matter in motion like this obviously requires energy, which will inevitably become dissipated as the waves pass through the air and more solid materials. Eventually the motion ceases entirely and no more sound can be heard — producing silence. Sound waves travel faster and more effectively in liquids than in air and travel even more effectively in solids.

Solids are packed together tighter than liquids and gases, hence sound travels fastest in solids. Gases are the slowest because they are the least dense: the molecules in gases are very far apart, compared with solids and liquids. The speed of sound varies depending on the temperature of the air through which the sound moves.

On Earth, the speed of sound at sea level — assuming an air temperature of 59 degrees Fahrenheit 15 degrees Celsius — is But its surface — which is covered by a substance called lunar regolith Moon dust! Twelve people have walked on the moon since humans landed there 50 years ago, but no one has ever directly touched its surface. Touching lunar rocks inside a spacecraft, or in a museum, is one thing; removing a glove and exposing yourself to the vacuum of space is another.

It cannot travel through vacuum. It cannot travel so vacuum. So the moon surface it cannot travel because there is a vacuum or it requires a medium to travel into it so it cannot be possible.

Apollo astronauts reported that lunar dust found inside their landers smelt like burnt gunpowder. Curiously, though, lunar dust samples brought back to Earth from the Moon are odourless. So whatever caused the smell reported by the Apollo astronauts must have been temporary. Thus, the minimum distance between the point of generation and reflecting surface should be half of it i.

So, we cannot hear an echo in a small room as the minimum distance for the echo will not be satisfied. Sound will echo in an empty room because if there is nothing to stop the sound from reflecting between hard surfaces, such as the walls, windows, ceiling, and floor.