Chapter 467 (2/2)

As a passer-by, how can a hot-air balloon, which has high military value, not be made?

In the original historical time and space, before the emergence of aircraft, hot air balloon was the only way for human beings to go to heaven. Moreover, even in the period of World War I, hot air balloons also have high military value in the war.

Ordinary hot-air balloons can take sentinels to an altitude of several hundred meters, so as to better detect the enemy. The airship developed from the hot-air balloon can also throw a bomb from the air to the enemy's position!

In the original historical time and space, the hot-air balloon that can carry people to the sky will not be invented by the Montgolfier brothers of France until 1783, 16 years later.

The Montgomery brothers are French papermakers. Inspired by the fact that scraps of paper are constantly rising in the furnace, they used paper bags to collect hot gas for experiments, so that the paper bags can keep rising with the air flow.

This is actually the French version of Kongming lamp.

Later, the montegorfi brothers magnified the French version of the Kongming lamp several hundred times, made it of paper covered cotton cloth, and connected the cloth interface with buttons to make a hot-air balloon with a diameter of about 10.6 meters.

The brothers used wood and dry straw as fuel to deliver heated air to the balloon, which made its first public performance on June 4, 1783 in Lyon square, France.

The balloon rose slowly with the attention of many Lyons, and then floated about 2.4 kilometers under the wind.

Obviously, the first public performance of a large hot air balloon in human history was a success!

Of course, at this time, hot air balloons can't carry people, even the montegriffi brothers, who invented hot air balloons, dare not ride in them. But the two brothers put a rooster, a duck and a goat into the basket of the balloon. These three animals were lucky to be the passengers of the first balloon.

In September of the same year, in front of the palace of Versailles in Paris, the montgolfiers performed a balloon lift off performance for the French king, Queen, court minister and 130000 Parisians.

Of course, the show is still no passenger.

Two successive successes filled the two brothers with confidence, so they decided to perform a manned launch in November of the same year!

On the afternoon of November 21, 1783, the montegraffi brothers boarded the hot-air balloon basket they made themselves in muertburg, Paris. When the hot-air balloon took off, it flew for another 25 minutes driven by the north wind, and finally landed in the Italian square after flying half of Paris.

This flight is the first manned flight in human history! A hundred and twenty years earlier than the Wright brothers!

Flying to the sky has always been the ultimate dream of mankind. Before the montegorfi brothers made the balloon, human beings could only dream of flying in the sky.

Now, the stone bear, whose soul comes from later generations, will not give the French the chance to fly to heaven for the first time!

The most important thing is that in this era, making enough safe hot air balloons ahead of time is really of great military value!

Therefore, the stone bear spent a lot of human and material resources to make such a big guy!