Because there were no satellites or planes, the war concept of the TAPP civilization generally remained in the era of giant ships and cannons. The more troops there are and the fiercer the guns are, the higher the combat effectiveness of each side will be. Moreover, in order to overcome the air friction, the projectile's mass is extremely huge, which is exactly the enlarged version of the human projectile.

In addition to giant ships and cannons, there is also a mode of war, which is to transport missiles by air boats and bomb the ground. If the air boats of either side can fly higher, then which side will be invincible.

"The war is never far away..."

In the TV room, a streamlined airship arrives at the station. O'Brien eats his breakfast in a hurry and follows the passengers to board the airship.

Then, the air pressure pump "suddenly" sounded, and quickly inflated to the surrounding auxiliary air bag. With the increase of the volume of the auxiliary air bag, the empty boat lifted off very smoothly.

This kind of empty boat code named "Lin Qibai" can reach a maximum speed of 80 kilometers per hour. In cities, each public empty boat has its own route, and its rated speed can reach about 50 kilometers per hour.

Fortunately between the sites are straight to straight, there is no intermediate station, so the speed is still acceptable.

Because there is no way to build high-rise buildings and the population that can be accommodated by the unit land is not large, this civilized residence is like farmland, which is spread out neatly, and the central core area must be empty boat parking place.

O'Brien works at the Observatory's Meteorological Office, 50 kilometers away, just an hour away.

When he came to the astronomical observatory, he found that the atmosphere was as usual. Most of his colleagues got together and chatted casually. The working day had not officially started yet.

The astronomical observatory is mainly responsible for the exploration of the outer sky and the meteorological monitoring.

Of course Mainly the latter.

The requirement of the empty boat navigation system on the climate is quite high, whether it is windy weather or rainstorm weather, it may lead to traffic paralysis. This also requires that the weather station can more accurately predict the weather conditions and send out timely notices.

O'Brien's biggest wish is to launch a real meteorological satellite There was such a project in the plan, which eventually died because of too much technical difficulty and too high capital requirements.

Even the manufacture of aerial vehicles in the whole country is very difficult, let alone launching rockets.

So the funds for star exploration are very, very little. We all think that if we think about it after a few years of advanced technology, we may save a lot of money?

Besides, most of the taps don't think it's very urgent to use artificial satellites. Can't they live well without satellites, and can't they predict the weather accurately? Only these meteorologists are eager for satellites, but their appeals are often useless.

"Tomorrow will be a new one, and the government's annual funding will be only a few million yuan. At most, a small astronomical telescope or satellite will be maintained? At this rate of development, it is impossible to have one in the next century! "

O'Brien sneered and complained about the shortsightedness of the politicians. It is impossible for politicians to allocate money without visible interests.

A large number of scientists are sharpening their heads and thinking about how to make the empty boat fly higher. All the funds are invested in the empty boat. Since the failure of the last project, the taps have been too lazy to think about other aircraft that can produce qualitative change. Even many people directly believe that it is impossible to be able to fly in the air.

"What's the weather like today?" Thinking about this, a colleague greets him.

It's not a casual greeting, it's their job.

Since there is no satellite, climate observation must be done through the aerial boat observation station above. Radio communication and computer technology have already appeared on this planet.

O'Brien glanced at the data on his computer and said, "it shouldn't be a big problem It's just my experience, of course. At present, our region is in a state of high pressure, with the occurrence of downdraft, and the probability of rainfall is rare The humidity of the air is not too high

"Another easy day." This colleague did a lazy stretch and didn't seem to wake up.

At this moment, suddenly, a computer in the next room issued a "didi" alarm.

"It seems that the radio interferometer has observed signals from outer space."

This kind of thing is not once or twice, what neutron star, pulsar, even solar wind, may appear electromagnetic wave signal. The atmosphere of the planet is thick enough that even the most violent solar wind has little effect on the planet.

"I'll go and have a look. It's good to record it."

O'Brien trotted over and recorded the signals into the storage device. He suddenly found that these signals, with certain rules, were more like the general telegraph code of the TAPP civilization.

"Fortunately, I learned telegraph language..." He scratched his head, hit the keyboard, the whole translation came out."Unknown civilization, Hello, we are human civilization from afar, coming with peace and goodwill."

"We abide by the principle of equality and free trade, everything can be bought, everything can be sold, as long as you can pay the corresponding price..."

"We..."

When I saw this line of words, the colleagues who came to join in the fun around me were dumbfounded and said, "I bet someone who has nothing to do sent this message on the empty boat Even the code is our telegraph code. Can we, the taps, accidentally conquer the whole universe? "

"What's the bet? Lunch in a meal? It's my treat. " O'Brien also didn't care much, and began to try to control the space telescope: "but the direction of the radio waves does come from space."

"Their ship stays above the atmosphere, is it true or not? You are really boring. You have to look for it like this. Be careful to be scolded by the stationmaster. " This colleague is still nagging next door, staring at the screen: "ah??!"

"This is What

His voice suddenly increased, almost from plain words, suddenly into a huge scream!

"Outside Aliens

A big wave of colleagues heard the scream and rushed over, thinking that something had really happened.

A tiny shadow really appeared in the telescope!

It seems that Staying at an altitude of 60000 kilometers, no empty boat can fly to an altitude of 60000 kilometers. There is no atmosphere at all.

In the air fell into a dead silence, it is simply incredible ah!

Aliens, aliens are really here.

Every TAPP held his breath, as if his brain was down. After several seconds, he ran to find the leader.

"Increase the resolution ten times more!" The station master of the weather station heard the news and came in a hurry. His voice trembled and he said.

O'Brien swallowed a mouthful of saliva and didn't look very good.

The shadow on the screen gradually becomes clear.

Fuzzy can see, not only one ship, but Ten!

There are 10 ships in total, moving above the atmosphere!