Question: Can Humans Talk Underwater?

Can you fire a gun in space?

Fires can’t burn in the oxygen-free vacuum of space, but guns can shoot.

Modern ammunition contains its own oxidizer, a chemical that will trigger the explosion of gunpowder, and thus the firing of a bullet, wherever you are in the universe.

No atmospheric oxygen required..

How can people talk underwater?

A fellow diver has an ultrasound receiver, which accepts the signal and converts it back to a sound that the diver can hear, allowing for communication. The same system can be used for communication between the diver and a surface ship. Acoustic communication systems allow divers to talk to each other underwater.

Why is sound muffled underwater?

Sound travels faster in water compared with air because water particles are packed in more densely. … When you submerged only your ear, the sound probably still appeared muffled. This happens because the human ear is not good at picking up sound in water—after all, it evolved to pick up sound in air.

Can mermaids talk underwater?

For mermaids to speak normally underwater, they have to have incredibly powerful voice boxes. It’s tough to judge exactly how good a mermaid’s sense of smell is. Plenty of fish hunt through smell, but usually it’s a long-distance tool.

Can we speak in water?

The frequency does not change and sound travels faster in water than in air. … Partial reflection should take place.

Why can’t humans hear underwater?

Sound that’s generated underwater stays underwater; very little sound passes from water to air. When your head is out of the water and you listen to a sound made underwater, you don’t hear much.

What can you hear when scuba diving?

Dive enough places and you are likely to hear sounds of snapping, crunching, thumping, grunting, clicks, whistles, songs and more with the sounds emanating from animals that vary in size from shrimps to whales.

How far inland can you hear the ocean?

When the tides coming in and its a bit windy we can hear the ocean where we live, 100 metres away. Its not a beach with surf- due to the Great Barrier Reef, and the shallow bay.

Can you talk up a storm meaning?

To talk enthusiastically and often, typically during a certain period of time. I didn’t get a chance to ask her about that because she was talking up a storm the whole night.

Can you hear whales above water?

While you may not be familiar with the sounds made underwater by the humpback whales, the sounds you are able to hear are the ones created by surface behaviour. … The sound this creates can be heard above and below the water.

Can a fish hear?

Fish hear, but their “ears” are on the inside. Bony fishes detect vibrations through their “earstones” called otoliths. Both people and fish use parts of their ears to help them with balance.

What does space smell like?

Astronaut Thomas Jones said it “carries a distinct odor of ozone, a faint acrid smell…a little like gunpowder, sulfurous.” Tony Antonelli, another space-walker, said space “definitely has a smell that’s different than anything else.” A gentleman named Don Pettit was a bit more verbose on the topic: “Each time, when I …

What does under the water mean?

2. In general, I am ‘under water’ is similar to I am ‘drowning’. In general, it means that you are overwelmed by a situation. Specifically in the US since the recession it jas come to mean that the market value of your home is less than the balance on the mortgage loan you owe.

Is it underwater or under water?

Being very old and set in my ways, I tend to use “underwater” as an adjective [as in an “underwater camera”], and “under water” as an adverbial phrase [as in “this man is swimming under water”]. However, more and more people seem to use “underwater” in both cases these days, so you can decide which suits you better.

Is it possible to hear someone speaking underwater?

Sound waves actually travel five times faster in water than in air. Underwater those sound waves don’t vibrate the ossicles bones in your inner ear. They go straight to the skull bones, vibrating that heavy bone you can touch just behind your ear. Because of that, you can hear higher frequencies underwater.

Can you talk under water meaning?

If you say that someone can talk under water, you mean that they talk a lot.

Why are there no sounds in space?

Sound travels in waves like light or heat does, but unlike them, sound travels by making molecules vibrate. … On Earth, sound travels to your ears by vibrating air molecules. In deep space, the large empty areas between stars and planets, there are no molecules to vibrate. There is no sound there.

How many dead bodies are in space?

However, of the roughly 550 people who have so far ventured into space, only three have actually died there.