Facts on sound, ध्वनि पर तथ्य

FACTS ON SOUND, ध्वनि पर तथ्य

FCT-3645

Believe it or not, there is no sound in space because there are no molecules there. Sound cannot travel through space since there are no molecules to travel through.

FCT-3646

Sound travels slower through air than by water. In fact, the speed of sound via water is 4.3 times faster than by air. However, sound does travel far faster through steel than both air and water.

FCT-3647

The most loudest natural sound on Earth is caused by an erupting volcano.

FCT-3648

Since dogs are able to hear sounds at a much higher frequency than humans can, they are able to hear sounds or noises humans cannot.

FCT-3649

It is almost impossible to define music. However, most describe it as significant arrangement of sounds.

FCT-3650

Flies are not able to hear any sounds at all.

FCT-3651

Most white cats that have blue eyes are often unable to hear sounds and are usually deaf.

FCT-3652

Dolphins are capable of hearing sounds underwater from as far as 15 miles away.

FCT-3653

Whale voices are able to travel a whopping 479 miles through the waters of the ocean. They have the ability to communicate with each other for long distances.

FCT-3654

Most animals use sounds to help them detect dangers and hazards before they happen to them.

FCT-3655

Our ears are able to hear distinct sounds because the vibrations which enter through them also ends up in our ears vibrating.

FCT-3656

Sound is unable to travel via a vacuum because a vacuum is empty of matter.

FCT-3657

Acoustics is known as the scientific study of sound waves.

FCT-3658

Sound travels at a speed of around 767 miles per hour.

FCT-3659

The majority of cows which listen to music end up producing more milk than those that do not.

FCT-3660

In order for a whip to crackle or make the noise it creates, it must travel faster than the speed of sound.

FCT-3661

Alarm systems transmit sound at around 1 to 3 kHz. That frequency range is both very sensitive for human ears and creates a black spot for our sound location ability.

FCT-3662

Musical sounds are uniform vibrations, while noises are irregular vibrations. Musical sounds distinguish themselves through pitch, loudness, intensity, quality, and timbre.

FCT-3663

The speed of sound is about 1,130 feet per second in dry air at 68 degrees Fahrenheit.

FCT-3664

A healthy young human ear can hear all frequencies from 20 to 20,000 hertz.

FCT-3665

In contrast, a dolphin can hear and produce sounds up to 150 kHz which is 150,000 hertz. This means that there are several sounds dolphins make that humans can't even hear.

FCT-3666

People who have Superior Canal Dehiscence can experience a symptom where they hear their body sounds at high levels, including hearing their own eye movements.

FCT-3667

Due to the Doppler Effect, a musical piece traveling twice the speed of sound would be in correct time and tune but only backwards.

FCT-3668

Whether it's an orchestra or a heavy metal band playing music at 120 dB, both will undoubtedly damage your hearing.

FCT-3669

Since particles are closer together in water than air, sound can travel four times faster in water.

FCT-3670

Horror filmmakers use infrared sound to induce anxiety, sorrow, and even heart palpitations.

FCT-3671

People hate the sound of their own voice on a recording because we hear ourselves differently in our own heads.

FCT-3672

Active noise-cancelling headphones use destructive interference to cancel out incoming sound, erasing the sound waves altogether.

FCT-3673

If you clap in front of Chichen Itza's El Castillo pyramid, the echo will sound like a chirping bird.

FCT-3674

Old television remotes used an aluminum rod and a hammer to make a sound above human hearing to change the channel or the volume.

FCT-3675

Astronomers located a black hole 250 million light years away by making a B Flat note 57 octaves below middle C.

FCT-3676

A British scientists discovered elephants are terrified of bee sounds and will flee when they hear them.

FCT-3677

It's estimated that making a sound at 1,100 decibels would completely destroy the universe in a black hole.

FCT-3678

Because electric cars are very quiet, they are required to have artificial sounds for safety reasons.

FCT-3679

Sound can't travel through space because there aren't any molecules to vibrate.

FCT-3680

In 1883, a volcanic eruption on the island of Krakatoa produced sound which shattered windows, shook homes, and were reported to be heard 160km away from the explosion.

FCT-3681

Pistol Shrimp produce an extremely loud pop to stun their prey. The pop sound reaches 218 decibels which is louder than a gun shot.

FCT-3682

Blue whales can make deep sounds up to 188 decibels and can be heard 500 miles away.

FCT-3683

Research in psychoacoustics helps us understand how sound affects our psychology and nervous system.

FCT-3684

Even if you aren't recording sound on a video recording, researchers at MIT found they can recreate a voice solely by the small vibrations of the things in the video recording.