2024年5月5日发(作者：小米2s官网)

中国女航天员太空中讲课

China's second female astronaut, Wang Yaping, has

delivered the country's first-ever video lecture from space

中国第二位女航天员王亚平首次在太空中进行视频讲课。Speaking

to students via live video, Ms Wang used spinning tops, a ball,

water and a fellow astronaut to explain physics in zero-gravity

She was speaking from the Tiangong-1 space laboratory,

where the Shenzhou spacecraft is currently docked,China's

fifth manned space mission, Shenzhou-10, is scheduled to end

around 25 or 26 June

The crew is also expected to attempt a manual docking later

on Thursday

This will involve getting back inside their Shenzhou

capsule, unhooking from Tiangong and then flying around the lab

to re-attach the capsule to the laboratory

'Sixteen sunrises'Ms Yang used difference experiments to

demonstrate the concepts of weight and mass in space?

After showing how normal scales did not work in space, she

used a special scale to measure the mass of crew commander Nie

Haisheng, using Newton's second law of motion - measuring the

mass of an object through force and acceleration

At another point, to show how objects move in the

microgravity environment of space, she asked her colleague to

help her rotate 90 degrees, and then 180 degrees, from the floor

of the laboratory

Spinning tops were used to create gyroscopic motion in

space, and a ball attached to a string to demonstrate pendulum

motion

Towards the end of the class, Ms Yang made a film of water

using a metal ring, explained by the increased surface tension

of water in space. She then turned the film of water into a water

ball by pouring more water onto it, to wide applause from

students watching in China

Around 330 primary and secondary school students watched

the lecture from a special classroom in Beijing, where they

could also ask Ms Wang questions through a live video feed,

state media said

In response to a student's question, Ms Yang described what

she could see in space?

"The stars we see are much brighter, but they do not

twinkle," she said, explaining this was due to the lack of

Earth's obstructing atmosphere?

"The sky we see isn't blue, but black. And every day, we

can see the sun rise 16 times because we circle the Earth every

90 minutes"An estimated 60 million students and teachers around

China were also expected to watch the lecture live, the Ministry

of Education said.