The story of the World Wide Web began in 1989 at the European Organization for Nuclear Research (CERN) in Switzerland,

When Tim Berners-Lee was working at the lab as a computer scientist, he noticed a serious problem: Files from one computer 【小题1】 (rare) worked on another because researchers were storing information in different 【小题2】 (format) for different operating systems. He often had to buy each scientist a cup of coffee to find out how things worked.

To solve the problem, Berners Lee created something like a virtual book 【小题3】 the CERN scientists could share their information 【小题4】 each other. Pages for the book could 【小题5】 (write) and posted from any kind of computer and read by any other computer. It was the 【小题6】 (begin) of the Web we all use today.

However, 【小题7】 idea of a World Wide Web was a tough sell. In those days, people had to get online by dialing up. 【小题8】 (communicate) was very slow. There 【小题9】 (be) no Google, and nothing to be Googled. It took Berners-Lee and his colleagues years 【小题10】 (convince) people to buy into the concept.

A company. Interstellar Labs, believes they have created a system that can solve the food problem related to further space exploration. They have developed an 【小题1】 (advance) system that can grow plants anywhere, even in space. They call their greenhouses managed by artificial intelligence (Al) BioPods, which 【小题2】 (confirm) to be very practical so far. In fact. Interstellar Labs says that BioPods reduce the amount of land and water 【小题3】 (need) to produce food by 99 percent. That is not 【小题4】 impossible thing. BioPods don't use any soil to grow plants.【小题5】 the vast majority of water there is recycled and recirculated.

Plants are grown inside BioPods using the practice of floating plants in the air and 【小题6】(spray) a mist of nutrient-rich water on their roots. In this way, the BioPod system carefully conserves water with amazing 【小题7】 (consequence). According to Interstellar labs, BioPod- grown plants are up to 300 times more productive than 【小题8】 (traditional) grown plants, using only a little water.

The conditions inside of a BioPod are controlled by AI, which can change anything from the lighting 【小题9】 the temperature to maximize growth. This makes the most of growing conditions whatever the environment is outside, including the 【小题10】 (empty) of space.

When Peter Sänger and Liang Wu got together, it 【小题1】 (strike) them that they must be long-lost friends. Both firmly advocate the fight 【小题2】 air pollution. They believe that if you can’t measure it, you can’t beat it. That’s 【小题3】 they founded Green City Solutions, the solution to quantifiably improve city air.

Their invention, the CityTree, acts as an air purifier, an interesting 【小题4】 (add) to urban trees and green spaces. Rooted in science, air pollution can be eaten by the vertical flat-paneled (平面的) “trees” 【小题5】 (dot) around cities across Europe, while the “trees” also act as seats for pedestrians. Sänger and Wu’s vision is for a world in which people in cities can live 【小题6】(healthy). They long to create living conditions that allow all people around the world to permanently have cleaner air 【小题7】 (breathe).

The CityTree combines 【小题8】 air-purifying feature of moss with remote technology to increase the air flow through the “trees”. This allows them to “suck up” and clean more air than normal, and the amount they purify can be increased 【小题9】 (depend) on pollution levels at different times of day.

The German green-tech start-up is now funded by the European Commission. A CityTree network of 15 brand new units will be set up and tested in a 【小题10】 (science) way in Berlin’s pollution hotspots next year.