How to make a Klein Bottle (in three dimensions) - Numberphile

Name: How to make a Klein Bottle (in three dimensions) - Numberphile
Uploaded: 2024-06-28T01:13:04+08:00
Description: How to make a Klein Bottle (in three dimensions) - Numberphile

Category：science

2024-06-28

Category Latest News

The space station project is the main place for humans to conduct space experiments. It can meet the needs of astronauts for space flights and provide a microgravity environment. The International Space Station is the largest space cooperation project in history. It has been in o - DayDayNews
I would never have imagined that an adult crocodile's mouth would be injured like this. One side of the mandible was broken in the middle, and half of the jaw fell to the ground with flesh and bones. It looked terrible. If I hadn't seen this video, I wouldn't have said anything. - DayDayNews
Donating blood is an act of giving love, which can save the lives of others when necessary. At the same time, donating blood is also beneficial to the body's health, such as promoting blood circulation and helping to enhance resistance. Did you know that donating blood in moderat - DayDayNews
Artificial hearts have been monopolized by foreign countries for a long time, and we have never had a market. At the end of November 2021, good news came from Suzhou Tongxin Medical. We finally created the "Chinese Heart" completely independently, and it was officially approved f - DayDayNews
On the same day, Yang Zhenning's student, Zhang Shousheng, a top Chinese-American physics scientist, "accidentally" fell and died in the United States. However, Meng Wanzhou's arrest and scientist Zhang Shousheng's accident happened on the same day. There seems to be no connectio - DayDayNews
When you think of the ocean, what comes to mind? Is it the sun, the beach, the blue sea, and the gentle sea breeze? Or is it the deep seabed where there is no sunlight all day long, and those strange-looking and terrifying undersea creatures? Today we will talk about an animal th - DayDayNews
Have you ever seen a mirage? Recently, a rare mirage phenomenon has appeared near Nansha Road in Hainan. It can be clearly seen that a series of buildings similar to the "Tiangong" can be clearly seen in the clouds, with pavilions, pavilions, carved railings and jade inlays. Sigh - DayDayNews
Two years ago, weather forecasters in the UK conducted an interesting thought experiment: What would our predictions look like in 2050? The climate crisis is pushing weather to extremes around the world, and temperatures in northern latitudes are particularly sensitive to these c - DayDayNews
In our minds, regeneration is an extremely powerful ability. As long as some weak animals have the ability to regenerate, it is equivalent to increasing their fault tolerance rate. - DayDayNews
Affected by the La Niña phenomenon, this year has indeed been extremely hot. After entering July, persistent high temperatures of 40°C occurred in many places in China. Compared with the air temperature, the temperature of the ground is often much higher. Recently, a netizen in D - DayDayNews

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