Elevators add a dimension to their travels with a cableless version developed by Germany's Thyssenkrupp Elevator. These elevator cars can move horizontally as well as vertically, thanks to a magnet-based linear motor drive system much like that used in maglev trains, guided along their way by an "exchanger" for switching from vertical to horizontal.
Hundreds of thousands of pieces of man-made junk whirling in orbit at tremendous velocities pose a growing threat to satellites and space stations. Lasers previously have been suggested as a means to zap the junk out of existence, and now China is proposing it as the most practical solution, although fears of the weaponization in orbit may check any such ambitions.
Aerial mapping by drone that incorporates 3D imaging for elevation is providing Canada's Prince Edward Island more accurate ground surveys than possible in the past. The technology, used for soil conservation efforts, is also more cost-effective.
Passengers could be picked up and then swept aloft vertically for rapid transport at up to 250 mph, all minus a human pilot, with Airspace Experience Technologies' planned Mobi-One air taxi. A sub-scale model of the electrically powered vertical takeoff and landing vehicle was unveiled at the North American International Auto Show in Detroit, and the company aims to have 2,500 of the real thing operating by 2026.
Sediment removal from Left Hand Creek in Longmont, Colo., will begin this week under a full grant from the Federal Emergency Management Agency. Sediment buildup caused by spring runoff in 2015 has lowered the creek's capacity and caused underpass blockages.
Natural options such as wetland vegetation and sand and stone will be emphasized to curb New York state beach erosion under a new initiative by the State Department of Environmental Conservation. "The recent severity of Hurricanes Harvey, Irma and Maria and the destruction left in their wake underscores the critical importance of New York's Living Shorelines Guidance," said DEC Commissioner Basil Seggos.
A plan proposed by the New Jersey governor's office would rid a 240-acre closed-off section of Liberty State Park of contamination and create a new landscape of wetlands, salt marshes, forests and grasslands. The plan would tap $40 million in funding from polluters and create "one of the greatest natural restorations in the United States," said Deputy Director Greg Remaud of environmental group NY/NJ Baykeeper.
A $1.88 million grant from Ohio's Environmental Protection Agency will be used to restore 3 acres of wetland and replace a stone dam on Rocky River in Strongsville's Bonnie Park. The East Branch of the Rocky River is one of the waterway's few sections that falls somewhat short of water standards.
The town of Brooklyn, Conn., faces a 90-day deadline to pick a company to inventory assets and launch the second phase of its permit for stormwater discharge. First Selectman Rick Ives describes the project as a "massive task," requiring a full accounting of all water flow assets, with GPS coordinates for each, plus initiating some way to quantify and maintain those assets.
The Mbezi River catchment basin in the Tanzanian capital was the subject of a study measuring its effectiveness in limiting erosion and curbing floods. Despite widespread efforts by residents to address stormwater hazards and harvest rains, the study identified a need for more coordination of efforts among authorities and residents to develop a paradigm that preserves local livability.
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