don't call me singer

Chapter 874

After adjusting the parameters in the middle of the night, the "Sea Dragon Palace" can automatically adjust all the "wave petals" as sails according to the wind direction, wind speed, and heading. Wang Guanshan also completely took over the driving work of the "Sea Dragon Palace".

Gu Xiaobai went back to sleep for a long time, and when he got up the next morning, he heard that Pan Guoxiang had already started speaking.

"Everyone, just now is the detailed content of Bernoulli's law, do you understand?"

The barrage flew wildly.

"Yazi seems to understand..."

"Although I don't understand much, as long as I see Teacher Pan's face, I feel that my knowledge is soaring."

"The principle is fully understood! Although I still don't know how to use it like this."

"Understood, Teacher Pan speaks really well, explaining the profound things in simple terms, much better than our teacher!"

Pan Guoxiang glanced at the barrage, and felt that the number of people who understood it accounted for about 20%. They were not professionals, and there was no need to learn formulas and calculations, so they went to the next section.

"Of course, the scope of application of Bernoulli's law is at low speed. If it exceeds Mach 0.3, it will deviate, because the super high speed compresses the air. At this time, a formula is needed to correct it-Karmen-Qian Xuesen formula .”

Hearing this name, the barrage went wild again: "Wow! Qian Xuesen!"

"Look at the name for 1 minute."

"Admiration!"

Looking at the netizens who typed the word "admiration" on the public screen, Pan Guoxiang was a little emotional.

He said: "In fact, physics is very much like a relay game. After passing a stage, everything before it must be adjusted, and then proceed to the next stage."

On the public screen, there were fewer bullet screens.

"Everyone's energy is limited, but we have generations of physicists who continue to relay and approach the limit, then modify the parameters, and continue to approach the limit, until finally reaching the limit of the times and ourselves, and unraveling the unknown mystery. The question will be passed to the next player."

Pan Guoxiang pointed out the window and said: "Everyone knows that normally, if you are sailing with the wind, the upper limit of the sailing speed is the wind speed, and it is impossible to break through the wind speed limit, so for a long time, sailing ships have been eliminated by modern power ships. "

"Until more than 200 years after Bernoulli's law was proposed, an American physicist named Bernard Smith proposed the modern high-speed sailing ship in his book "1963 Knots (40 Kilometers) Sailing Ship" published in 74. the concept of."

"But his theory is too advanced. It was not until 2007, 44 years after his theory was put forward, that a team broke through the speed of 40 knots (74 kilometers). When this team excitedly contacted Bernard , Bernard was 97 years old when he told him his idea became a reality."

On the barrage, everyone was a little embarrassed, and a little fascinated.

The progress of human science and technology is due to the efforts of countless pioneers.

"People are not satisfied with the speed of 40 knots, and have stagnated. With continuous efforts, the speed of the fastest modern sailing ship "Fengfan Rocket 2" has reached 119.95 kilometers!"

"Although this speed is far less than the record set by those powered ships that use rocket boosters to constantly challenge the extreme speed - 500 kilometers per hour, as a ship that does not require any additional energy, this speed is already It can be ridden on the highway!"

Pan Guoxiang's metaphor made everyone in a trance.

Many people have never been on a high-speed sailing boat, but they have all experienced the speed of cars on the highway.

"And just last night, Xiaobai led our team to bring the design of rigid sails, hydrofoils, and keels to super-large ships for the first time. This may be another breakthrough across the ages. Starting today, large-scale Ships are not just the patent of power boats, sailboats can also cross the ocean at super high speeds, sailboats can also carry heavy cargo, ride the wind and waves, sailboats will return to the ranks of mainstream ships, and perhaps it will not be too long... "

In a word, let alone the netizens who watched the live broadcast, even Gu Xiaobai was a little excited.

Gu Xiaobai turned his head, looked out the window, and then... his eyeballs almost popped out.

Pan Guoxiang was still feeling emotional when he saw a group of people suddenly brushing up on the barrage.

"Teacher, teacher! Out of the window! Out of the window!"

"I'm going, someone is dying outside the window!"

Pan Guoxiang turned his head to look over, and saw not far from the window, there was a person dragging something like a parachute behind his back, hanging above the back of the Dragon Palace on the Sea, rolling wildly in the air like an unthreaded kite.

While rolling, screaming.

"Help... ahh... help..."

At this time, Pan Guoxiang was at the back of the "Sea Dragon Palace", part of Area E.

This is where the generators, backup motors and other important mechanical equipment of the Dragon Palace on the Sea are located. It belongs to the working area and is far away from the living area.

Behind, you can see the white waves dragged by the Sea Dragon Palace.

Just now, Pan Guoxiang used this ocean wave as the background to express his emotions.

In the barrage, someone already said: "I seem to have seen someone behind me just now..."

"I saw it too, I thought it was the staff..."

Pan Guoxiang was also confused, he looked at the figure spinning wildly in the air: "This person seems to be that who..."

who is coming?

Wait... It doesn't matter who it is now... The important thing is to save people quickly!

The time returned to a few minutes ago.

Wang Hongchun looked at Yan Xuexin in bewilderment.

"Really? Are you really planning to use this thing to fly into the sky?"

This guy didn't sleep all night, just tinkering with such a thing?
"That's right." Yan Xuexin took it for granted.

"Also, where did your parachute come from?"

"I put it together with the scraps I picked up from the construction team..." Yan Xuexin tugged on the rope, thought for a while, and said, "I may have borrowed some materials... Oh, it's okay, I've already left a note. Just pay them some money in time! This is not considered stealing!"

Can the matter of a scholar be considered stealing?

Is that so?
"But this thing...wouldn't be very dangerous?" Wang Hongchun was still puzzled.

"It's just parasailing, it's probably the safest extreme sport..."

"No, what should I do if I encounter danger..."

"Don't worry, I've calculated everything, the current speed is enough..." Yan Xuexin skillfully connected the sling on his body to a small crane behind him, and then told Wang Hongchun: "You just need to do two things for me ... 1. Put the rope down for me; 2. If something happens, call for help!"

Then, Yan Xuexin checked himself.

"Life jacket, check; wind direction, check; wind speed, check; rope firmness, check! Tension calculation, check!"

Then a flower of a parachute bloomed, and Yan Xuexin flew into the sky.

next second...

"Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa then help!"

(End of this chapter)