Topic Discussion | Black Technology at the Olympic Winter Games: A Free Perspective Activity

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Welcome to discuss the black technology of the Winter Olympics.

As far as I know, there's a lot of technological innovation in the Winter Olympics.

1. Robots can be used for epidemic detection, face recognition, and disinfection.

2. Robot restaurant, where small robots complete the ordering and delivery service.

3. There are smart beds in the Olympic Village that can adjust posture automatically.

4. There are driverless cars around the venue.

That's just part of what I know, and of course, there's more.

Environmental protection is one of the main focuses of the 2022 Winter Olympics. The National Speed Skating Oval, known as the "Ice Ribbon", serves as the best demonstration. The temperature of the stadium’s 12,000 square meter ice surface is individually and precisely controlled through a CO2 refrigeration system, enabling the whole venue to be used for different purposes simultaneously.

Compared to conventional refrigeration technology, a CO2 refrigeration system does not damage the ozone layer and has a cooling efficiency that is 1.2 times higher. In addition, the system can achieve a temperature difference of 0.5°C or less across the ice surface, which provides strong support for top-level ice performances. The system's carbon emissions are said to be close to zero, saving more than 1 million kilowatt-hours of electricity per year.