There are many fast objects in the world, so do you know how long it takes for humans to walk a light year?
1. Ranked tenth is the American horse racing Quattra, which is famous for its short-distance sprint.
The ninth place is springbok, whose name comes from its amazing speed of bouncing in the air like a spring. Springboks are also called jumping goats. Their high jump can reach 1.8 meters, and they can jump higher in despair.
The eighth place is pronghorn. When pronghorn run, they will feel the wind blowing around them. They are the second fastest animals on land.
The seventh place is Anna hummingbird, which is incredibly beautiful. Because of its precious feathers and shiny acne throat, this bird can be called flying jewelry. This hummingbird can fly to a height of 40 meters at a speed of 98 kilometers per hour.
Ranked sixth is our familiar cheetah. Objectively speaking, it is impossible to accurately calculate the real speed of cheetahs.
6. The fifth place is Swift. As the name implies, this kind of bird flies very fast. We could hardly hear the harsh sound when it happened to pass over our heads.
7. The fourth place is the grey-headed albatross, a kind of petrel, so I am even more surprised to see them living in the sea. However, they spend most of their time in the sky. The albatross has a unique appearance, especially the golden outline around the white fish crown and the black beak under the eyes. As incredible as their appearance, they can beat anyone at 129 km/h.
8. The third place is the horsefly. The most surprising thing about horseflies is their extraordinary speed. If they don't pay attention when flying in the air, they will think it is a bullet. The horsefly can be said to be the Ferrari of the insect world.
9. The second place is the tailless bat. The speed of tailless bats exceeds 88km/h, among which five bats reach 1 13km/h, and one of them reaches 16 1km/h, making it the fastest animal.
10. Peregrine falcon ranks first. The flying speed of peregrine falcon is 322 km/h, but this is not its limit. In horizontal flight, peregrine falcons usually like to fly at a speed of 64 to 97 km/h, but if you want to see their fastest speed, it often happens when they hunt, that is, when they dive for food, their speed can reach 389 km/h, which is a great test for the muscles of the body at such a fast speed.
There are many fast objects in the world, so do you know how long it takes for humans to walk a light year?
265,438+06 million times, the speed of light is 300,000 kilometers per second, and the speed of human walking is about 5 kilometers per hour. So how long does it take for humans to walk a light year? The distance that humans walk in a year is: 5 * 24 * 365 = 43,800 kilometers. The distance of a light-year is 300,000 kilometers * 3,600 seconds (one hour) *24 (one day) *365 (one year)/43,800 = 216 million years. In other words, it takes at least 21600 million light years for humans to walk a light year.
The speed of light in one second can be said to be very fast. Light can go around the earth seven and a half times in one second. It takes 6.8 years for people to walk this distance, and it takes about 4 days for fighters to fly this distance. It takes eight minutes for the earth to reach the speed of light from the sun.
There are many fast objects in the world, so do you know how long it takes for humans to walk a light year? Why use light years?
As can be seen from the above story, the speed of light is very fast, not to mention the distance of one light year, which is unimaginable. But in the vast universe, we have to use light years to calculate and express the distance between galaxies. Such as the diameter of the Milky Way. Suppose we fly at the speed of light, it takes 654.38+ million light-years to cross the Milky Way.