Sevtopolis, an island on the lake bottom
Archaeologists who do research on lake bottoms are well known. But draining a water-area amidst a lake to do this, is new. The Koprinka-Reservoir is in Bulgaria.
It is said that the water will be kept outside by a ring out of concrete.
A really interesting project. But how will they solve the problem with groundwater? With Pumps?
Found on baunetz.de
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Last Updated (Sunday, 05 September 2010 06:46)
Portable Hydro TurbineThe australian industrial designer Daniel Hull conceptualized a water turbine. With this one can easy and quick generate electric power by hydro power. It consist of a anchor, a accu and a small, foldable water turbine.
The transportbox houses also the accu and inverter.
Packed together it can be carried easily over the shoulder.
Now there is only a manufacturer needed...
More on energyharvestingjournal.com (Eng) Add new comment
Last Updated (Friday, 27 August 2010 18:23) The diving motor boatScubacraft, this new vehicle from Great Britain could be very popular amongst divers and boaters. It drives like a common motor boat but can also dive and then serve as base for divers. Last Updated (Sunday, 05 September 2010 06:46) |
Portable UV water purifier without batteries?
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The US-based Corporation Solopower offers elastic photovoltaic modules. Low weight and easy to mount, these modules are perfect for bent hall roofs. Thanks to a newly copper-indium-gallium-selenid-composition (CIGS) the efficiency is up to 19.9 %. Some possible fields of application:
Maybe in the near future one can use such solar modules instead of foil to darken the car’s windows, who knows? Last Updated (Friday, 27 August 2010 10:52) |
