United States SpaceX Polaris plans to complete the first commercial spacewalk of mankind, the original space is not so unfathomable, ordinary people can also go to space, SpaceX has refreshed our cognition again and again, the original world is more than the mouth of the well.
I just brushed up on a video released by SpaceX "Polaris Dawn and Earth Multinational Band Playing Earth Symphony", and the music between outer space and Earth was played without delay, this is the Starlink communication technology, which amazes me, far ahead of 5G.
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Not to mention Starlink communication technology, even electromagnetic wave communication amazes me. The radio we often use is radio, which is essentially electromagnetic wave communication, scientists convert sound into electrical signals, and then convert electrical signals into electromagnetic waves, and then electromagnetic waves diffuse to the outside world at the speed of light, and then our radio receives electromagnetic waves, performs the opposite process, and then can hear sounds from distant places.
On July 20, 1969, United States Armstrong and Aldrin became the first humans to set foot on the moon, the United States Apollo program has been 55 years now, more than half a century has passed, we still have many people here questioning that the Apollo moon landing was filmed in the studio, the ignorant are fearless, people invented the radio 100 years ago, is it difficult to land on the moon 50 years ago?
The United States Polaris program has once again sounded the alarm bell for us, the gap is still very large, and the technicians must work harder, otherwise in 50 years, there will be many people who will question the Polaris program, just as we now question the Apollo moon landing program.
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