The Second Update!

After reading the first update, everyone turned their attention to the second.

[The Stratosphere Challenge has officially begun and has now entered its final preparation stage. The final safety tests will be conducted step by step by the state and Sprout's various departments. In addition, both professional and amateur fans will be invited to participate in these safety tests.

Sprout will release the safety testing plans and methods, inviting fans to supervise the process.

The challenger is ready @Deng Qi. Sprout hopes to join him in witnessing the magnificent sight beneath the stratosphere.]

If the first update had been exciting, then the latter one made the fans' hearts skip a beat.

They had heard Sprout mention the Stratosphere Project before, but it had never been put into action. Everyone had assumed the project had been shelved.

After all, the project was truly dangerous.

A skydive from 39,000 meters meant crossing the Armstrong limit.

How high an altitude could the human body withstand? The generally accepted answer was 9,000 meters. Beyond 9,000 meters, humans could not survive. Even that 9,000-meter limit was merely a hypothesis, with no concrete evidence.

The absolute altitude supported by theory was 19,000 meters, also known as the Armstrong limit. Above this boundary, atmospheric pressure was extremely low, and survival without a spacesuit was impossible.

At an altitude of 19,000 meters, water boiled at 37 degrees Celsius. In other words, at that height, the fluids inside the body would begin to evaporate.

So below 19,000 meters, without pressurized clothing to protect the body, how high could a person fly exposed?

There had been proof before. The answer was 13,000 meters. Someone had already jumped from high altitude at 13,000 meters, demonstrating the limits of the human body.

It was the summer of 1959. A United States Air