SPACE — Taikonauts Gui Haichao and Zhu Yangzhu showed off lots of microgravity stunts on the Chinese Space Station, Tiangong on September 23. Meanwhile, hundreds of school students on Earth watched it via live broadcast.
Among these actions, two things received full attention, namely the fire show and playing table tennis. Uniquely, they don’t play with ping pong balls, but with water bubbles.
How the water ball bounces between the players’ two bets is a unique and amazing sight. You can watch it in the video link provided below this article.
In minute 13 of the video, Gui and Yangzhu, who carried out the Shenzhou 16 mission in Tiangong, demonstrate how fire burns in space. Surprisingly, the flames were almost spherical, not the teardrop shape we see on Earth.
Also Read: How Does Fire Burn in Space? Taikonot Demonstrates it from Tiangong Station (Video Link)
On earth, the flame burning in a candle is formed through convection driven by buoyancy, that is, hot air rises and cold air falls. However, these convection currents are weak in a microgravity environment so the fire spreads in all directions, producing a spherical flame.
After the action of lighting the candles, both of them took their respective bets. Then, remove one water bubble from a special water bag for space missions.
The water immediately floated gently. When Gui put the bet on, the water immediately stuck to it. Apparently, they have some kind of coating for bets so that the game can run smoothly.
The water ball bubbles act like ping pong balls, bouncing when hit with the padded bet. Not waiting long, the action of the two invited the admiration of the students and directors who watched it from earth. In fact, they cheered with joy when they saw him.
Video link of Taikonot playing table tennis in the 18th minute: CCTV
The matter of the candle lighting experiment, where Gui lights a match, is another issue in space. Because, this must have surprised the astronauts on the International Space Station (ISS). The station has strict regulations regarding open flames and flammable materials.
Also Read: 24 Hour Astronaut Life on the Space Station
The stringent fire safety measures on the ISS were a response to a major fire on Russia’s Mir space station in 1997. Combustion in microgravity has been the subject of numerous experiments on the ISS, but they use specially designed instruments, so the fire remains isolated and controlled.
Tiangong also has a Combustion Experiment Rack (CER) for serious research in this field. Source: Space.com
2023-10-01 11:46:00
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