Actually, this? Ufo? This is not uncommon in the United States. Only from 20 19 to 12, new york appeared twice in a row? Ufo? Except for the diamond shape in North Dakota? Ufo? Blue over Oahu, Hawaii? Ufo? What about Texas? Ufo? The metal ring floats inside. What about these? UFO? Is it really all? Space tourists? So America is really the first time that aliens have come to the earth. Humans have been trying to find creatures that exist outside the earth. This kind of thing happens all the time? Ufo? It caters to our imagination of extraterrestrial life. Many people think that this kind of thing often appears, which is the strongest evidence of the existence of alien life. But so far, this speculation has not been confirmed. Many people in the world believe in the existence of extraterrestrial life, but many people have always believed in science. These so-called UFOs? Just a helicopter, or a weather balloon.
As we all know, the weather balloon is the cheapest main tool for observing high altitude in the world. Compared with launching equipment such as rockets, satellites and reconnaissance planes, its cost is much lower. In addition to the hydrogen and helium required by the balloon itself, it does not need extra power and is very flexible and convenient to use, so it is widely used in scientific observation. According to different use requirements, the shape, load, acceleration and other characteristics of weather balloons can be changed. There are many kinds and colors of weather balloons, such as high-altitude balloons, sounding balloons, tethered balloons and stratospheric balloons. Balloons with fixed height can cooperate with satellites to launch radiosondes to earth surface stations and collect measurement data.
The probe balloon can carry relevant equipment needed for liftoff, collect relevant meteorological elements at high altitude, and measure wind speed at high altitude. Most probe balloons weighing about 1kg can rise to an altitude of 30 kilometers. Tethered balloons are mainly used for observation in windy days, and can be used for air pollution monitoring and atmospheric boundary layer research. Stratospheric balloons with modern positioning, tracking, remote control and telemetry technologies can observe a large number of atmospheric related data, which are mainly used in scientific research and experiments, and cannot be separated from its applications in high-energy physics, space physics and astronomy.