The speed of sound through air is about 340 meters per second. It’s faster through water, and it’s even faster through steel. Light will travel through a vacuum at 300 million meters per second.

Scientists have discovered the fastest possible speed of sound, a zippy 22 miles (36 kilometers) per second. Sound waves move at different speeds in solids, liquids and gases, and within those states of matter — for instance, they travel faster in warmer liquids compared with colder ones.

Supersonic speed is the speed of an object that exceeds the speed of sound (Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F) at sea level, this speed is approximately 343.2 m/s (1,126 ft/s; 768 mph; 667.1 kn; 1,236 km/h).

Sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. Radio is a form of electromagnetic radiation just like light and can therefore travel through the vacuum of space just fine.

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.

While sound moves at a much faster speed in the water than in air , the distance that sound waves travel is primarily dependent upon ocean temperature and pressure.

All bats pass their wastes through their anus. Bats chew the fruit they consume, extract the juice, and spit out the remains due to their rapid digestion and inability to digest fiber.

If you are bitten by a bat — or if infectious material (such as saliva or brain material if it is killed) from a bat gets into your eyes, nose, mouth, or a wound — wash the affected area thoroughly with soap and water and get medical advice immediately.

There are products that make regular loud sounds that surprise and scare off bats. However, this can be irritating to humans who live in the house as well. The more popular sound deterrents for bats are those that use ultrasonic sounds.

Killing the bat and disposing of it – If you kill the bat and dispose of it, you have lost the ability to test the bat for rabies. If there is a remote possibility that you or someone in your household has come in contact with the bat, most physicians will want you to undergo treatment for potential rabies exposure.

While bats themselves can often carry diseases like rabies, the most dangerous risks from having bats in your home come from their droppings, which can host a wide variety of dangerous (and even deadly) diseases and parasites.

Even if you aren’t sure whether you’ve been bitten, seek medical attention. For instance, a bat that flies into your room while you’re sleeping may bite you without waking you. If you awake to find a bat in your room, assume you’ve been bitten.

If you see bats around your home or in it, there are only a couple of reasons for their presence. As with any other wild animal or household pest, they choose to cohabitate with humans for three reasons: Harborage, food, and water.