What is cosmic velocity?

Cosmic velocity is the minimum velocity required to launch artificial Earth satellites, interplanetary and interstellar vehicles from the Earth's surface into space. Pen ~ fun ~ pavilion www.biquge.info

The reason for this concept is because of gravity.

In the universe, everything has mass or relative mass. The greater the mass, the greater the gravitational pull.

When the gravitational pull is strong enough to a certain extent, then other objects will be firmly bound by it.

That's why the earth is round, and people at the other end don't fall.

So, how do you break free from this bondage?

This is modern aerospace technology.

Studies have shown that when an object reaches a certain point in velocity, it can escape gravity.

This is the origin of the cosmic velocity, which has a total of six velocities, which are-

First cosmic velocity: refers to the speed at which an object moves in a circular motion close to the earth's surface (which is also the minimum launch speed of an artificial earth satellite and the maximum orbiting velocity);

Second cosmic velocity: refers to the minimum initial velocity required for an object to break free from the gravitational constraints of the earth and fly away from the earth;

Third cosmic velocity: refers to the minimum initial velocity required for an object to break free from the gravitational constraints of the sun and fly out of the solar system.

Fourth cosmic velocity: refers to the minimum initial velocity required for an object to break free from the gravitational constraints of the Milky Way and fly out of the Milky Way

Fifth cosmic velocity: refers to the minimum velocity required for an object to break free from the gravitational constraints of a group of galaxies and fly out of the group of galaxies.

Sixth cosmic velocity: refers to the speed at which a spacecraft can be launched at this speed on the Earth, which can break away from the gravitational pull of the whole universe.

……

The first three speeds have been measured by modern technology and have been recorded in middle and high school physics textbooks in various countries.

For Alice, who usually studies hard, she still remembers the answers to these three questions clearly.

So as soon as she recalled, she wrote down the answers to the test paper.

And the 4th, 5th, 6th cosmic velocity, it's troublesome.

The limitations of modern technology have made it impossible to measure the mass of the entire Milky Way. And mass is related to gravity, and the mass is not known, so how can gravity derive data?

And if there is no data on gravity, how can we overcome gravity?

Therefore, until now, humans have not known the specific values for the 4th and 5th cosmic velocities.

And the last sixth cosmic velocity, not to mention.

Do you know the mass of the entire universe?

God, this will be an unimaginably large number, almost equal to infinity. Not to mention breaking free from the universe.

It's even harder than the "prov: 1+1=2" problem.

According to the current development of human beings, I don't know if there is any hope to calculate it in tens of billions of years.

So, does Ike know?

……

In the solemn gaze of the audience, in the extremely solemn gaze of the 7 professors, Ike moved.

But Ike slowly closed his eyes.

At this moment, within his soul, a brilliant ball of light emerged. The huge metal electronic sound of Ike's soul reverberated in the high-dimensional plane of the earth's space-time.

"Energy Statistics...... Counted: 10.7 billion. ”

"Pay 2.7 billion energy...... High-dimensional particle beam deformation. ”

"Darkness is coming!"

As the high-dimensional voice fell, on the border between the United States and Canada, the particle beam hidden in a certain computer group suddenly moved.

Endless high-dimensional particles begin to spin faster than the speed of light, blooming with invisible light. The light is getting brighter and brighter......

At its peak,

All the light faded, and a dark light finally returned.

It's called High Dimensional Dark Light!

At this moment, Ike's sea of souls, a huge metal electronic sound sounded again.

"The research module is loading...... 10%…… 50%…… 80%…… 100%！ ”

"Loaded!"

"Initiation of the scientific research validation process...... Starting...... Launched! ”

"Start the countdown!"

“5！”

“4！”

“3！”

“2！”

“1！”

"High-dimensional dark light emission!"

As the sound fell, on the border between the United States and Canada, a faint high-dimensional dark light instantly soared into the sky, ignoring the barriers of all low-dimensional items, and shot towards the sky......

Two times the speed of light, ten times the speed of light, a hundred times the speed of light......

After just 0.000000000001 milliseconds, the high-dimensional dark light broke free from the shackles of the earth's gravity and entered space.

After a short period of 0.000001 milliseconds, the high-dimensional dark light broke free from the shackles of the sun's gravity and entered the Milky Way.

At this moment, it began to do high-dimensional flight in a magical way, and its speed was once again overspeeding, two hundred times the speed of light, a thousand times the speed of light, ten thousand times the speed of light......

Everything in the world, when the speed is at its extreme, nothing can stop it.

The cold, dark universe has attracted uninvited guests.

Stars can't catch it, white dwarfs can't catch it, supernovae can't catch it, and even large black holes can't stop it.

One minute passed, two minutes passed, three minutes passed......

It flew over the Large Magellanic Galaxy, the Small Magellanic Galaxy, the Andromeda Galaxy, the Seyfert Galaxy, the Rhododendron Dwarf Galaxy......

How big is the group of galaxies in which the entire galaxy is located?

It's huge!

It has a radius of about 500-10 million light years. That is, it takes more than 10 million years for a beam of light to come to an end.

Because it is made up of immeasurable stars, of which there are more than 500 known galaxies alone.

Humans named it the Local Group of Galaxies, also known as the Local Supercluster.

……

With the high-dimensional dark light speeding forward, within Ike's soul, the bright ball of light is constantly blooming.

It is doing calculations, based on the travel speed and travel time of high-dimensional dark light, so as to calculate the mass of the star, the mass of the galaxy, and even the mass of the galaxy community.

Then calculate the gravitational force based on the mass, calculating the cosmic velocity.

Time went on minute by minute: four minutes, five minutes, six minutes......

At this moment!

Ike was still waiting patiently with his eyes closed.

Because, this group of galaxies is just too big, too big.

This gesture of closing the eyes fell into the eyes of everyone, and the onlookers were extremely surprised.

Many students in the Quartet whispered one after another.

"What's going on? He couldn't be sleeping, right? A female classmate gently tugged at her friend's clothes and asked in a low voice.

Hearing this, my friend was also extremely puzzled.

"Probably not! It's an exam now, and so many people are watching. He probably wouldn't sleep in the exam room in front of Mr. President and the examiners, right? ”

Like, maybe, maybe, so!

My friend's words sounded like she was refuting the female classmate, but she couldn't even take it for herself.

Not only them, but even President Obama was extremely confused at this time.

"The little one can't be asleep, is he?"

According to the little guy's usually naughty personality, there is a high chance that this kind of thing will happen.

Hearing Mr. President's question, Hughes was extremely depressed, he knew what a fart.

To this end, Hughes looked at the seven professors in the examination room.

After all, they are professionals.

However, at this moment, the seven world-renowned professors are also confused.

"Is Ike asleep?" The chemistry professor asked the biology professor in a low voice.

The rest of the professors looked at him as well.

The biology professor shook his head: "It doesn't seem like there is!" He ......"

Before the words were finished, at this moment, suddenly!

…… (To be continued.) )