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☆ Abandoned Greek airport to be transformed into a 600-acre coastal park
▼ + stars: | 2022-11-25 | by ( Nell Lewis | ) edition.cnn.com time to read: +16 min

Tegel Projekt GmbH/Atelier Loidl Kai Tak International Airport, Hong Kong -- With a runway that protruded into the sea, Kai Tak International Airport in Hong Kong once had one of the most arresting approaches in the world. PHILIPPE LOPEZ/AFP/AFP via Getty Images Hellinikon International Airport, Athens, Greece -- Hellinikon was once the only international airport in Athens, Greece, before Hellinikon was once the only international airport in Athens, Greece, before closing down in 2001 . Developer LAMDA is looking to complete the first phase of construction in 2025 courtesy LAMDA Development Stapleton International Airport, Denver, Colorado -- A photo of Stapleton International Airport from 1963. The grounds of the old airport became the 125-hectare (309-acre) Quito replaced its main airport with another bearing the same name. RODRIGO BUENDIA/AFP/AFP via Getty Images Downsview Airport, Toronto -- Downsview Airport in north Toronto was once a Canadian Air Force base.

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☆ The Australian teenager on a mission to protect ragged-tooth sharks
▼ + stars: | 2022-11-02 | by ( Written Nell Lewis | Video Angus Watson | ) edition.cnn.com time to read: +5 min

But the gray nurse shark (also known as the sand tiger shark and the spotted ragged-tooth shark) is under threat. As well as gray nurse sharks, whales, stingrays, grouper fish and many more marine species can be seen there. This has helped to raise awareness of the fragility of both the area and gray nurse sharks, says Leesfield. Gray nurse shark numbers have declined in recent years, leading to the species being listed critically endangered. Faehrmann explains that Fish Rock is a critical breeding ground for gray nurse sharks.

☆ In-wheel motors could be the future of electric cars
▼ + stars: | 2022-10-26 | by ( Nell Lewis | ) edition.cnn.com time to read: +7 min

Mounted in the rim of an electric vehicle’s wheels, the motors increase efficiency by delivering power directly to where it’s needed most. Supercars and pickup trucksElaphe, which was founded in 2006 by Gorazd Lampič and quantum physicist Andrej Detela, has designed in-wheel motors for a range of electric vehicles. In-wheel motors are far more exposed to the elements as well as impacts and vibrations from the road. The report notes that as electric vehicles become more popular, automakers are looking towards in-wheel motors for their space-saving abilities and improved power efficiency. Another major player is Protean Electric, which was acquired by British electric vehicle maker Bedeo in 2021.

German company Wasser 3.0, however, thinks it may have found the answer to cleaning up microplastic pollution before it reaches the ocean — using a whirlpool and a specially developed hybrid silica gel. Courtesy Wasser 3.0 gGmbH | Philipp BrüderleThe hybrid silica gel consists of silicone-based chemicals called organosilanes, and is non-toxic, says Schuhen. During a 12-month trial at the Landau site, around 600 pounds of microplastics were removed, says Schuhen. Some scientists have suggested using magnetic fluids to separate microplastics from water or sticky film made of bacteria, but these processes are in their early stages. Schuhen says that Wasser 3.0 is an affordable, scalable and simple solution to the global problem of microplastic pollution.

☆ These apps are trying to put car dealers out of business
▼ + stars: | 2021-07-15 | by ( Nell Lewis | Cnn Business | ) edition.cnn.com time to read: +4 min

London (CNN Business) City dwellers are used to switching between apps to decide the best way to get from A to B. "Whim's sole purpose is to compete against car ownership," CEO Sampo Hietanen tells CNN Business. If Whim can persuade users to trade their car keys for a single app offering multiple transport options, the environmental impact could be enormous, says Hietanen. The ticket also offers car rental from €55 ($65) per day. According to Whim, public transport and micromobility are the most popular ways to travel using the app.

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