What Is Faster Light Or Sound?

What is the fastest thing in the universe?

And, while light is still by far the fastest thing in the universe, moving at a staggering speed of 299791.82 km/h, the following list contains some of the other closest things to reach that title of “World’s Fastest.”.

What is the cost of dark matter?

Considering the LUX experiment cost about $10 million to build, that puts the effective price of dark matter at, oh, about one million trillion trillion dollars per ounce. This is off-the-charts precious material.

What is the slowest thing in the universe?

VenusVenus, which is floating higher each evening in twilight, low in the west, is the slowest-spinning body in the known universe. If you walked along a bike path that circles its equator, you’d only need to go four miles an hour to keep night from ever falling on Venus.

Is it possible to travel faster than light?

For one thing, while nothing has ever been observed travelling faster than light, that does not mean it is not theoretically possible to break this speed limit in very special circumstances. … There are galaxies in the Universe moving away from one another at a velocity greater than the speed of light.

What is the 2nd fastest thing in the universe?

The second and third fastest things in the universe are matter going at 99% of the speed of light, or like 99.9 or 99.99 and on, percent of the speed of light. However the number one fastest thing in the universe belongs to 2 things, photons, which carry light, and gravitons, which carry gravity.

What is the fastest reaction time for human?

around 0.15 sThe fastest possible conscious human reactions are around 0.15 s, but most are around 0.2 s. Unconscious, or reflex, actions are much faster, around 0.08 s because the signal doesn’t have to go via the brain.

What is faster light or dark?

Most of us already know that darkness is the absence of light, and that light travels at the fastest speed possible for a physical object. … In short, it means that, the moment that light leaves, darkness returns. In this respect, darkness has the same speed as light.

What is faster sight or sound?

A: Simply put, the reason that you can see an airplane before you can hear it is just because light travels faster than sound. In air like our atmosphere, the speed of sound is about 330 meters/second (or about 740 miles/hour) but the speed of light is 300,000,000 meters/second (or about 186,000 miles/second).

Does anything travel faster than light?

There is no limit to how fast the universe can expand, says physicist Charles Bennett of Johns Hopkins University. Einstein’s theory that nothing can travel faster than the speed of light in a vacuum still holds true, because space itself is stretching, and space is nothing.

How many sounds can we hear at once?

Under ideal laboratory conditions, humans can hear sound as low as 12 Hz and as high as 28 kHz, though the threshold increases sharply at 15 kHz in adults, corresponding to the last auditory channel of the cochlea.

Is Dark Matter dangerous?

Dark Matter a Danger? Because WIMPs don’t have strong effects on normal matter, collisions inside the human body shouldn’t pose much danger. But when WIMPs collide with each other, their annihilation is a much more energetic reaction.

Can humans travel a light year?

As of January 25, 2020, Voyager spaceprobe, the farthest human-made object from Earth, is 200 AU away. … Light in a vacuum travels around 300,000 kilometres (186,000 mi) per second, so 1 light-year is about 9.461×1012 kilometers (5.879 trillion miles) or 63,241 AU.

What is faster the light?

The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.

How fast is dark matter?

54 meters per secondThis mysterious energy makes up 80 percent of all matter in the universe. In a 2013 study, scientists determined that dark matter should have a speed of 54 meters per second, or 177 feet — slow compared to the speed of light [source: Armendariz-Picon and Neelakanta].

Who has a faster reaction time male or female?

It is documented in the literature that the muscle contraction time is the same for males and females[18] and motor responses in males are comparatively stronger than females,[19] this explains why males have faster simple RTs for both auditory as well as visual stimuli.

Is dark matter everywhere?

1. Dark matter is EVERYWHERE. Planets, stars, asteroids, galaxies – the things that we can actually see – constitute less than 5% of the total universe.

What is the hottest thing in the universe?

A CERN experiment at the Large Hadron Collider created the highest recorded temperature ever when it reached 9.9 trillion degrees Fahrenheit. The experiment was meant to make a primordial goop called a quark–gluon plasma behave like a frictionless fluid. That’s more than 366,000 times hotter than the center of the Sun.