China claims 10 world records for new bridge/tunnel sea crossing

This past weekend China opened the Shenzhen-Zhongshan Link, a new cross-sea tunnel and bridge system located in Guangdong Province, South China. The architectural marvel apparently breaks 10 world records – albeit very specific ones.Continue ReadingCat… Continue reading China claims 10 world records for new bridge/tunnel sea crossing

World’s longest immersed tunnel lets visitors drive under the Baltic Sea

The Fehmarnbelt tunnel will open in 2029 and is expected to be in operation for at least 120 years

An ambitious underwater road and rail tunnel is currently under construction in Europe that will link Germany and Denmark. Named the Fehmarnbelt tunnel, it will cross an 18-km (roughly 11.2-mile) stretch of the Baltic Sea.

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Public given clearance to explore London’s top secret spy tunnels

Hidden roughly 40 m (131 ft) below central London’s streets lies a fascinating but little-known network of tunnels. Originally conceived as a bomb shelter during WWII, the Kingsway Exchange Tunnels were used as a telecommunications center and even a sp… Continue reading Public given clearance to explore London’s top secret spy tunnels

Light-activated concrete scrubs air pollution out of traffic tunnels

Traffic is among the biggest sources of air pollution, but what if the very roads they drive on could help clear the air? Engineers in Korea have now demonstrated that photocatalytic concrete can help reduce pollution in tunnels.Continue ReadingCategor… Continue reading Light-activated concrete scrubs air pollution out of traffic tunnels

Switzerland’s autonomous underground cargo system aims for 2031 debut

A lot less technologically optimistic than the Hyperloop-TT Hyperport project, Cargo Sous Terrain looks considerably more likely to happen, with its first 10-stop, 70-km (43-mile) series of underground tunnels scheduled to begin taking cargo in 2031.Co… Continue reading Switzerland’s autonomous underground cargo system aims for 2031 debut

Watch as Petra’s remarkable thermal bore cuts through undrillable rock

San Francisco startup Petra says its new contactless thermal drilling robot can make steady progress through the hardest rock on Earth – stuff that would normally destroy drilling equipment – so quickly and cheaply that it could make a lot of undergrou… Continue reading Watch as Petra’s remarkable thermal bore cuts through undrillable rock

Watch as Petra’s remarkable thermal bore cuts through undrillable rock

San Francisco startup Petra says its new contactless thermal drilling robot can make steady progress through the hardest rock on Earth – stuff that would normally destroy drilling equipment – so quickly and cheaply that it could make a lot of undergrou… Continue reading Watch as Petra’s remarkable thermal bore cuts through undrillable rock