What is the maximum speed a person can tolerate?

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It can only be done in a conjectural way.

The state of matter at different speeds within the speed of light is a stable state, which means that there is no damage to matter itself within the speed of light, even if it is a human body. So the highest speed that a person can withstand is the theoretically unattainable speed - the speed of light.

Matter may not be able to exceed the limit velocity of the substrate due to the speed limit of the material matrix; If so, matter beyond the speed of light may have a reverse current in the laws of motion of the material matrix (this may be based on the speed of the material matrix, which may be extremely close to the speed of light, or higher than the speed of light, which is assumed to be close to equal to the speed of light). ）。Consequences It is possible to form 'matter outside the speed of light' that has no effect on the material within the speed of light, and it disappears from the point of view of the matter within the speed of light;Or maybe it doesn't disappear, and the countercurrent of the matrix law may just regress the concept of time in this matter.

If this is the case, the fact that the human body exceeds the speed of light does not necessarily mean rejuvenation, the possibility of rejuvenation, but I think it is almost zero, and the greater possibility may be the destruction of matter, maybe the molecular structure...Maybe it's the ......... of the atomic structureEven down to the smallest unit that maintains the counterflow of the matrix (this is called absolute crushing), or all at the same time at different rates; Another possibility is to become anti-matter (usually no antimatter has been found in matter, and even under experimental conditions, antiprotons are fleeting). Reference.

So my answer is that the limit speed that the human body can tolerate is the conceptual speed of light, and people who exceed the speed of light will disappear or shatter or rejuvenate or become antimatter (although antimatter is instantaneous, it may also hold the concept of time due to the speed of movement).

Added:1Perhaps the previous case is the same as that of , that is, the antimatter mentioned in the reference is only a partial anti-motion phenomenon of normal matter in the atomic structure, not absolute antimatter.

2.The aforementioned rejuvenation is another process of rejuvenation of the human body relative to the aging of the human body, which is constant and gradual, and should not be understood as a sudden age of getting younger and living a normal life, and all the substances involved in this process and the human body are in reverse time. (This process seems disgusting, and I suspect that it is almost impossible for the human body to be raised from within the speed of light to outside the speed of light to have enough corresponding anti-temporal matter to meet the process of infantilization of the human body, so the consequences are unimaginable and even extremely severe.)

I say in vain: it is also denied from a philosophical point of view).

It should be the maximum acceleration.

Acceleration is within the tolerance range, and the speed will be adaptable.

Looking at the resilience of people, everyone is different, but on the whole, the difference is not much worse.

Upstairs is quite right, I'll just add.

Even when you reach the speed of light, you can bear it. It's just going to be flattened.

Speed doesn't matter, even the speed of light isn't necessarily a problem.

Acceleration is key

Acceleration is converted into force.

It is then converted into pressure.

Speed is not a problem, otherwise astronauts still dare to ride rockets, mainly overload, 9 g is the limit overload (g) that the human body can bear, that is, in flight, the pilot's body must withstand the huge acceleration. These positive or negative accelerations are usually measured in multiples of g. Overloads are divided into positive overloads and negative overloads.

Overload, i.e., in the case of acceleration, centrifugal force is exerted from the head to the feet, and the blood is pushed against the lower part of the body. In the case of positive overload, if the pilot's muscle structure is not well adjusted, the brain will not be properly replenished, and the pilot is prone to visual problems called gray or black vision.

The speed that people can withstand is very fast, and no one has ever experimented on how many of them, because the speed of the aircraft is what people can bear.

For example, the linear speed of the Earth's rotation at the equator is 4,629 meters per second, which means that people at the equator are traveling at a speed of 4,629 meters per second at all times, which is dozens of times faster than the speed of a civilian airliner.

It's OK to go as fast as possible, what people are most afraid of is overload, ordinary people are trained to withstand 6G overloads, and the first person in aerospace, Yuri Gagarin can resist 12G overloads. No matter how high it is, it will not work, and the person will lose consciousness or even die.

If you rely only on your own physical strength, you should be the current world champion in the 100-meter run, and the 100-meter run should not exceed 10 seconds. If you use a tool invented by humans, it's rocket spaceships. The initial velocity of the rocket is at least 9 kilometers per second, and the triumphant attack can break away from the earth's gravity and enter the Taihang Brother Sky.

The spacecraft orbited the Earth faster, which should be the highest speed a human can achieve. If there are no manned people, human beings will send probes into space, and their probe speed will be even higher, if they only observe space galaxies with their eyes and with the help of high-energy Sun Si telescopes, their speed will be close to the speed of light, that is, 300,000 kilometers per second.

Death acceleration.

For the sake of traffic safety, the Western traffic management department has specially formulated the value of death acceleration of 500g to wake up the world It means that if the acceleration exceeds this value, there will be a danger to life, so large acceleration, under normal circumstances, the vehicle can not reach, but if a traffic accident occurs, this value will be reached, because the time of the general vehicle collision is short, mostly milliseconds

For example, if two motorcycles collide at a speed of 20 km/h (, and collide in opposite directions, and the collision time is milliseconds, then in such a short period of time, the resulting acceleration is a v t=, which shows that such a large acceleration can be generated in the collision

Why was 500g determined as the acceleration of death? This mainly considers the force of the human body at the time of the collision, according to the test the most vulnerable part of the human body is the human head, its maximum bearing force is, if the mass of the human head is 5kg, if the above collision occurs, the human head is forced, f ma 5, if calculated with the acceleration of 500g, the force of the human head is 25kn, close, so the transportation department stipulates 500g as the death acceleration value

In order to avoid traffic, the traffic management department specifically stipulates that the car driver must wear a seat belt, and the motorcycle must wear a safety helmet and a safety helmet and a safety belt have a cushioning effect, according to the momentum theorem, we know that increasing the buffer time can greatly reduce the impulse, such as the collision time is reduced, then when the above collision occurs, the human head is stressed only, which is much safer for people, and people can consciously abide by these traffic rules in the traffic after understanding this problem

Speed does not affect the human body.

It is acceleration that makes an impact.

According to the data, the acceleration that the human body can withstand is about 10g. Appeared in the early days of astronauts. Due to the backwardness of astronautical equipment, early rockets had an extremely high acceleration, often reaching 10 g. within thirty seconds of takeoff

Due to the use of advanced computer control, the trajectory of modern rockets is more rationalized, and the acceleration is generally 3G after liftoff.

Here it is necessary to mention the concept of the acceleration unit g: on the surface of the earth, the human body is in gravity and behaves at a normal weight under the force of 1g. And during the rocket liftoff, the acceleration of 3g means that the person's weight becomes 3 times the normal weight.

In motion, acceleration and force have the same effect in mechanics.

Acceleration has the greatest impact on the cardiovascular circulatory system. This increasing acceleration affects the pressure distribution of blood and other body fluids in the human body. When the spacecraft rises rapidly, the blood in the human body will sink like taking the foot of an elevator, and the blood will quickly concentrate on the lower part, so that the lower blood vessels will expand, and the blood vessel walls will be under great pressure, which will then cause the liquid in the blood vessels to seep into the surrounding tissues, making the lower limbs swollen and stinging.

The concentration of blood in the lower part will also cause ischemia in the heart and head, and vision loss, unresponsiveness, and in severe cases, even confusion. To avoid these consequences, astronauts wear anti-load suits to interfere with the flow of blood. Gravity causes blood to flow to the lower part of the body, and this device prevents the blood from concentrating too much in the legs.

At the same time, allowing the astronaut to adopt an appropriate posture and use a reclining seat can reduce the ischemia of the head and heart, thereby improving the astronaut's anti-acceleration ability.

When the roller coaster swoops down, we are subjected to 5g gravitational acceleration for a short period of time, and we experience dizziness and nausea. The seats have to be specially designed so that people don't faint. Our ability to withstand acceleration due to gravity depends not only on the change and duration of acceleration or deceleration, but also on the direction of our body.

We are most sensitive to the external force exerted in the direction of the foot, as this allows blood to flow to the brain. The body is in a vertical state for 5 to 10 seconds at 4 to 5 g, often causing tubular vision and then loss of consciousness.

The gravitational acceleration of a fighter in the vertical state can reach 9g, and the stronger the pilot's ability to withstand such an environment, the more favorable it is for air operations. Some pilots wear "gravity suits," which prevent a large amount of blood from the legs rushing to their heads. The person with the strongest gravitational ability is called "Monster G".

Alec Stevenson, a biologist at Qinetiq, a UK-based defense company, said: "Some of us can really stay awake at 6G. "Some others faint in 3G.

Pilots can improve their natural tolerance to gravity by training in centrifuges, which Qinetiq has in Farnborough, Hampshire, England. They learn to tighten their leg and abdominal muscles, promote blood flow to the upper body, and lower their blood pressure through special breathing techniques. The maximum gravitational force a person can tolerate is, but to do so, NASA doctor Flanagan Gray enters a special tank that puts pressure on his body and helps him withstand that much gravitational acceleration.

U.S. Air Force pioneer John Stap holds the record for the highest level of gravitational acceleration.

The average person is generally 5-7g

Trained people can withstand more than 8g, and astronauts can withstand up to 11g

2-3 times.

There is no upper limit to the maximum speed that a person can endure, for example, if you are sitting on the earth and running around the sun at 30 million kilometers per hour.

The acceleration of people is limited, ordinary people will have severe dizziness, nausea and vomiting symptoms under the acceleration condition of 3G, and the cardiovascular and cerebrovascular vessels will be seriously damaged and life-threatening under the condition of 5G.

But a well-equipped pilot or astronaut can withstand much more acceleration, and now the best pilot in the world (an American-Canadian, I can't remember the name) has flown planes in stunts.

Under the condition of high gravitational acceleration, the body will first be severely congested locally, and the other end will be severely ischemia.

The limbs are not badly affected by short-term ischemic conditions, but they will not move flexibly, and when they are severely congested, they will stiffen the limbs, and in severe cases, they will damage the capillaries.

When the head is congested, the head will be confused and unresponsive, and when it lasts more than a minute, it may permanently damage the brain due to lack of oxygen, and when the head is congested, the face will first be swollen, and tinnitus will occur, and then speech difficulties, the retina and lens will be congested (at that time everything you see is red), the cranial pressure will dull the thinking, the semicircular canal will be abnormal, and in more severe cases, the cerebrovascular rupture (cerebral hemorrhage), the nerve signal transmission will be blocked, the retina will rupture, the semicircular canal will rupture, and the hypoglossal artery will rupture.

A person who is subjected to a gravitational acceleration of 16g will surely die, and a well-trained pilot can withstand a gravity of 9g, but it will produce black vision, which is very dangerous. F1 drivers can withstand the gravity of 6 Gs, and the average person will feel extremely uncomfortable and even faint with the gravity of G.