The moon base I built was exposed

Chapter 29 The first deal is concluded!
three days later.

Zhao Yu stood at the observation point of the base, picked up a pair of binoculars through the glass, and looked into space.

In the shot, four spacecraft lined up in a square formation, heading towards the orbit of the moon.

"finally come……"

Zhao Yu thought that if the deal was settled, he would be able to get the technology points. Who knew, Zuo and others didn't arrive, so he realized that the deal would not be considered complete until the other party's resources arrived.

For him, the original intention of trading watches was to obtain the technology points returned by the title of 'Mysterious Merchant', which was a one-off.

Trading watches with the earth is only a one-time transaction, but if you invest in building a factory on the earth, you can get resources continuously.

Under Zhao Yu's watchful eyes, the four cargo spacecraft slowly landed on the surface of the moon, and the landing position was exactly where Baitu [-] left.

There was the trading place agreed by the two parties. A large number of Xiaotians were already on standby. The moment the spaceship landed, the shielding device was activated.

……

United Earth Defense Agency.

In the first transaction with aliens, all the staff of the newly established Defense Bureau were on standby, watching the situation of the four spacecraft.

On the spacecraft, there are not only the resources required for this transaction, but also various detection equipment.

Regarding Xiaotian's shielding device, various countries have already recruited experts and held countless meetings.

Many conjectures and methods have been put forward, and this time it can be used as a test.

Looking at the various measures they proposed, can they bypass the shield and continue to work? !
"All data are good, the spacecraft is landing..."

"Successful landing, all detectors turned on!"

"Enabled..."

"Next, let's see if we can do it!"

Not far in front of Colonel Chu, there is a row of sixteen screens, connected to the equipment on four spaceships, ready to use various methods to try to bypass the shielding device.

Whoa!
As soon as the voice fell, the sixteen devices in front of me went dark in an instant.

"It's all black?!"

Colonel Chu frowned. From this point of view, all sixteen experiments failed.

Alien shielding technology is more powerful than they imagined, and more in-depth research is needed.

It is not only him who is frustrated together, but also the experts and scholars who set up these experimental methods, all of them are very sad.

"Is it possible that the equipment is malfunctioning?!"

"Impossible, don't think about it, this is the trading point between the moon and aliens, there is no other possibility except for the shield..."

After 1 minute, the sixteen screens returned to normal.

In the spaceship, all the resources disappeared, replaced by 1 yuan watches placed in the four spaceships.

"The things are gone, only the watch is left..."

"The transaction is considered complete, let's control the spaceship and return..."

……

[The transaction is completed, get 850 technology points! 】

On the moon, after Xiaotian moved the resources away, Zhao Yu received the technology points rewarded by the system.

Including the unused leftovers these days, Zhao Yu now has a total of 1150 technology points.

"It's time to make a spaceship!"

Zhao Yu got the technology points and went straight to the control room, intending to get out the spaceship with a dual-core power system worth 500 technology points.

After finding the nuclear-powered and magnetic-powered dual-core spaceship, Zhao Yu clicked on the exchange, but unexpectedly got a reminder.

[This exchange needs to be exchanged for 'saucer-shaped spaceship' and 'U-shaped nuclear-powered spaceship' first. 】

"There are prerequisites, sure enough..."

It is not surprising that Zhao Yu has encountered exchange items that require preconditions before.

He now has 1150 tech points, the disc spaceship is worth 400 tech points, and the U-shaped nuclear-powered spaceship is worth 450 tech points.

With the money in hand, he could buy all of them, but he wanted to take out 500 technology points first and exchange them for the gravitational lens.

The gravitational lens is the upper limit of detection methods that can be exchanged for a level 1 base. It can detect everything through gravitational waves, whether it is a natural celestial body or an artificial celestial body, as long as it has mass, it can be discovered by the gravitational lens.

After thinking about it, Zhao Yu pulled to the list of gravitational lenses and clicked Exchange.

[The gravitational lens was purchased successfully, consuming 450 technology points. 】

Zhao Yu chose a place and set up the production line before turning his head to look at the spaceship.

With the remaining 700 technology points, only one of the two spaceships can be produced.

Zhao Yu thought for a while, copied the detailed data of the two spaceships, left the control room, and found the steward.

"If it only moves between the earth and the moon, the speed of the saucer-shaped spacecraft will be faster..."

"If you want to add weapons, the U-shaped spaceship can install more, and it will not damage the power system..."

Zhao Yu was stunned for a moment, and said, "Will the addition of weapons to the disc-shaped spaceship affect the speed?!"

"Yes, the disc-shaped spaceship is much smaller than the U-shaped spaceship. In order to increase the magnetic force, the entire spaceship frame uses a special structure. Adding weapons will definitely destroy this structure, and eventually lead to a decrease in speed..."

"The power of the U-shaped spaceship relies on the nuclear fusion reactor to propel it. Although the power system alone occupies one-third of the spaceship, the remaining two-thirds can be equipped with weapons at will without affecting the power... "

"What about the speed?"

"The saucer-shaped spacecraft has a maximum speed of Mach 100 inside the planet, and decays after leaving the planet. The fastest round-trip speed between the earth and the moon only takes 4 and a half hours..."

"The U-shaped spaceship has two power modes. The speed of conventional nuclear power in the universe is about Mach 50. Inside the planet, it will be slightly reduced due to the influence of air friction..."

"In addition to conventional power, the U-shaped spacecraft is also equipped with a nuclear pulse propulsion method, which can provide a one-time flight of 10 times the speed of sound for no more than 200 minutes..."

"What will happen if it exceeds 10 seconds?" Zhao Yu asked curiously.

"It will explode!"

The advantages and disadvantages of the two spaceships were explained, and Zhao Yu began to think about it.

His purpose of building a spaceship now is to go to the earth to build a factory, and sneak around the earth by the way.

From this point of view, it is obvious that the disc-shaped spaceship is more suitable. Using magnetic power, no matter whether it is starting or flying, it is noiseless.

On the other hand, the U-shaped spaceship is obviously more suitable to be refitted into a battleship full of weapon systems.

"Then this disc-shaped spaceship can't hold weapons at all?"

"some!"

"It is possible to build a production line of sonic weapons and assemble them on saucer-shaped spacecraft..."

"How powerful is it?!"

"The power to the building is extremely small, almost nothing, at most the glass will be shattered..."

"But it is deadly enough to living things. The specific data will not be known until it is built and tested..."

After chatting with the butler for a while, Zhao Yu gradually had an idea.

If there is no problem with safety, first build a production line for saucer-shaped spacecraft, and then install a sonic weapon system on the spacecraft.

As for the U-shaped nuclear-powered spaceship, wait for another ten days of technology points, and then get it.

Redeemed.

After deducting the 400 technology points exchanged for the saucer-shaped spaceship production line, another 50 technology points were deducted to create the sound wave system.

In the end, Zhao Yu had 200 technology points remaining. According to the growth rate of 24 technology points per day, in another 10 days and 10 hours, it would be enough to exchange for the production line of U-shaped nuclear-powered spaceships.

"Sir, Xiaotian has successfully received the resources from the earth, do you want to build all the star destroyers?!"

　Thank you book friend 20210818103949263 for rewarding 100 coins, thank you.

　　
　
(End of this chapter)