以持續G值來說是正9負3
印象中啦....
如果不正確也別鞭小弟我了...
往下是9
往上是3
即使是受過專業訓練的飛行員
也很難撐到9
一般人好像在7左右就昏迷了(穿著抗G力衣亦然)
至於往上為何是3?
因為超過這個值
腦部的微血管就會爆裂
至於前後左右
小弟就不太確定了
大家看一下
-----我是分隔線------------
出處
Col. John Paul Stapp aboard the “Gee Whiz” rocket sled at Edwards Air Force Base.
In 1949, at Edwards Air Force Base in California, officers were conducting project MX981 tests to determine once and for all how many Gs -- the force of gravity -- a human being could withstand. They hoped that their findings could be applied to future airplane designs.
The project team used a rocket sled dubbed the "Gee Whiz" to simulate the force of an airplane crash. The sled traveled more than 200 miles per hour down a half-mile track, coming to an abrupt stop in less than a second. The problem was that, in order to find out just how much force a person could take, the team needed an actual person to experience it. Enter Colonel John Paul Stapp. Stapp was a career physician for the Air Force, and he volunteered to ride the rocket sled. Over the course of several months, Stapp took ride after physically grueling ride. He was subjected to broken bones, concussions and broken blood vessels in his eyes, all in the name of science [source: Spark].
Murphy attended one of the tests, bearing a gift: a set of sensors that could be applied to the harness that held Dr. Stapp to the rocket sled. These sensors were capable of measuring the exact amount of G-force applied when the rocket sled came to a sudden stop, making the data more reliable.
There are several stories about what happened that day, and about who exactly contributed what to the creation of Murphy's Law, but what follows is a good approximation of what happened.
The first test after Murphy hooked up his sensors to the harness produced a reading of zero -- all of the sensors had been connected incorrectly. For each sensor, there were two ways of connecting them, and each one was installed the wrong way.
When Murphy discovered the mistake, he grumbled something about the technician, who was allegedly blamed for the foul-up. Murphy said something along the lines of, "If there are two ways to do something, and one of those ways will result in disaster, he'll do it that way" [source: Improbable Research].
Shortly thereafter, Murphy headed back to Wright Airfield where he was stationed. But Stapp, a man who was known for his sense of humor and quick wit, recognized the universality of what Murphy had said, and in a press conference he mentioned that the rocket sled team's good safety record had been due to its awareness of Murphy's Law. He told the press that it meant "Whatever can go wrong, will go wrong" [source: The Jargon File].
That was all it took. Murphy's Law turned up in aerospace publications and shortly thereafter made its way into popular culture, including being made into a book in the 1970s.
Since then, the law has been added to and expanded upon. In the next section, we'll look at some of Murphy's Laws interpretations and consequences.
Other Universal Truths
Although Murphy's Law captures the jaded, pessimistic view of the world very well, it doesn't stand alone. Since its popularization following the rocket sled tests at Edwards Air Force Base, shrewd observers have come up with some of their own laws.
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