"Rip!"
Accompanied by the piercing sound of tape tearing, the five-meter-long red seal separated from the box and flew 3,400 meters into the air.
To let the audience get a clear view of the box, Chen Yu deliberately moved sideways and stood on the box's left side. He then faced the camera and slowly opened the box's lid, revealing the light blue cylinder inside.
Afterward, Chen Yu walked to the box's right side and opened the lid.
The full appearance of the product was finally revealed to Chen Yu and his 20 million viewers...
[Dammit!
A cannon?]
[This cannon isn't very smart.]
[It looks a little like Dongfeng Express!]
[It might be a nuclear missile launch pad.]
[Electromagnetic cannon!
Summon Sis Cannon!]
[It's clearly a planetary engine...]
[UP, no matter how amazing you are, do you dare livestream at the Forbidden City on Monday?]
"Mhm..."
Taking five steps back, Chen Yu carefully observed the blue cylinder's shape and frowned.
Like most of the audience, he couldn't tell what it was just by looking at its appearance, even though he was there.
"Come, help me."
Hooking his finger at Little Peach, Chen Yu and Little Peach separated the box from the product.
"Hu..."
After tossing the box into the air, Chen Yu controlled the camera and observed the cylinder 360 degrees. However, he still couldn't determine its true purpose.
"Now that the unboxing session is over, everyone should be like me, confused about what it is.
From the Interstellar Portal to the Weather Control Console to the floating castle, the more futuristic a product is, the more it will surpass our imagination. "
Stretching out his hand, Chen Yu removed a card from the cylinder's right side. "Fortunately, with the help of the instruction manual, we 'ignorant' ancients can explore the mysteries of the future."
After saying so, Chen Yu skillfully activated the card's power button and carefully slid through the instruction manual.
"What the?"
As soon as Chen Yu saw the product's name, he couldn't help but exclaim in surprise. He then hurriedly increased his speed.
Meanwhile, as he gradually gained a deeper understanding of the product, his surprise turned into shock, and then from shock to admiration... Chen Yu couldn't help but mutter to himself.
"Magical...
"It's too amazing...
"Unbelievable...
"Amazing!"
As this card did not have a projector function, only Chen Yu could see the contents and explanation of the card. Although the livestream rooms' 20 million viewers were itching to watch the card, they could only anxiously wait for Chen Yu's answer.
After more than ten minutes of "awkward silence," Chen Yu put down the card and looked at the camera in silence for a long time. In the end, he sighed and said, "This is too magical. Just how willful a designer must be to create such a product?"
"Does everyone know what it is used for?"
[If you don't tell me!
How the hell would we know?!]
[Damn it!
The host definitely did it on purpose!]
[Cameraman, put rice in your sh * t today.]
[This damned show effect!
Don't keep me guessing!]
[I don't know what you're talking about. I'm just here to see the female assistant.]
[I'm also looking at the female assistant.
How could they get so excited over a big iron stick?
A bunch of f * cking gays!]
[I've watched all the livestream channels. There are more than 20 million viewers!
Don't you have to go to school or work?]
After inserting the instruction manual back into the card, Chen Yu stroked the cylinder's smooth surface a few times. After sorting out his words for a while, he said, "It is very difficult to explain this product in a sentence or two.
This is because it involves a lot of knowledge related to astronomy, chemistry, physics, aviation, and aerospace.
"That's right. This is an aerospace product.
It is a product that nobody has even dreamed of in 2020.
Even if it cannot be produced in modern times, all previous technologies have been described by scientists, inventors, or various cultural works.
There is also theoretical support for the various technologies.
"However," Patting the cylinder, Chen Yu said, "this product is blank in human history.
At the very least, I have never heard of anyone or any cultural works using this product. "
Pausing slightly, Chen Yu straightened his back and recalled the knowledge he had learned over the past few weeks. He then loudly said, "The unboxing session is over. Next, we will enter the introduction.
I will try my best to use concise language to introduce the magic and absurdity of this product to everyone.
"First, there are currently only two ways for humans to enter space.
"The first is rocket propulsion.
The second is aircraft propulsion.
The latter requires rocket propulsion as well.
So, in a strict sense, humans can only enter space through rocket propulsion.
"However, due to the high cost of rocket propulsion, the scientific community has always wanted to find a more efficient method.
Among them, the most famous and most feasible method is the space elevator. "
After saying so, Chen Yu stretched out a finger and said, "To introduce the space elevator, I have to mention a person.
Russia's Tsiolkovsky.
The livestream rooms' viewers might not know this name.
However, you must have heard of his title.
"He is known as the Father of Spaceflight!
"As for the saying: Earth is the cradle of mankind, but mankind will not stay in the cradle forever.
That's what this Great God said. "
"This deaf god was born in 1857, when there weren't even airplanes.
However, during that era, when mankind had yet to study how to take off, he began to study how to fly into space and enter the universe.
"He saw that a punctured balloon would be blown by the airflow and understood the reaction force. He immediately created the principle of jet rockets and completed the system's formulas and calculations.
One of the formulas was also named after him. It is called the Tsiolkovsky formula.
"v = v0xln (m0/m1).
"This rocket speed formula is easy to derive. It can be calculated with just a little calculus.
I won't waste time on such a simple problem. "
[Ah!
It's a big shot!
My eyes!]
[Show!]
[I feel the ridicule of a wise man.]
[Mom asked me why I jumped into the toilet to watch a video...]
[A liberal arts student says you have a grammatical error.]
[Smiling.]
Straightening his mask, Chen Yu continued, "According to the formula, if one wants to take to space, the ejection speed must be high. Therefore, the mass ratio of m0/m1 must also be high.
M0 is the rocket's original mass, and m0 is the remaining mass after being ejected.
If the 'ratio' between the two is large, what does this mean? "
[I don't know.]
[I don't know + 1.]
[I can understand every sentence, but I don't understand anything.]
[I understand everything, but I don't understand anything...]
[Amazing, amazing...]
After pausing for a moment, Chen Yu smiled and said, "It means that the mass of the fuel must be greater.
Hence, most of the mass of a rocket is fuel.
This has not changed even to this day.
This is also the main reason for the high cost of space operations. It is too wasteful.
"After completing the principle of jet rockets, this god went a step further and specified liquid fuel. He then created the principle of multi-stage rockets... By the time he completed this series of great deeds, humans still don't know how to build airplanes.
"Some of you might ask, what does this god have to do with the sky elevator?
Why are you focusing on him?
"Because this god is also the one who proposed the space elevator. He also completed all the theories and calculations, including the structural strength of the materials, the height of the space elevator, the counterweight ratio, the balance point of 36,000 kilometers, and so on.
As long as the materials are up to standard, humans can directly build a space elevator using the legacy of the Father of Astronautics.
"This is not a delusion!
In 2019, Japan and China have produced qualified materials and have already begun building space elevators. At most, by 2050, the project will be fully launched. Everyone will definitely be able to see it in their lifetime.
"However..."
Reaching out, Chen Yu patted the surface of the cylinder and said, "With this thing, we can abandon the space elevator project.
We don't need to wait until 2050. With humanity's current technology, we already have the foundation to build this product.
"The only thing limiting its birth time is the imagination of the scientific community.
"Its name is...
"The Earth Spray!"