asteroza + buoyancy   9

Media - News - UK team trials new ultra-endurance air vehicle - University of the Highlands and Islands
Similar to Slocum gliders, but use buoyancy in air. But considering the medium, won't you need bigger wings? I seem to remember a passenger craft concept that was similar, with a catamaran body, a large wing, and a centered over-wing engine cluster, called GravityPlane.
variable  buoyancy  airship  hybrid  glider  aerodyne  vehicle  transportation  research  UAV  drone  blimp  HAPS 
april 2019 by asteroza
Some sort of dynamic variable buoyancy airship?
russia  dynamic  variable  buoyancy  airship 
november 2017 by asteroza
SinkFloatSolutions | The affordable energy transition
Potential energy gravity based energy storage, using a huge mass on a winch over deep water.
ocean  buoy  buoyancy  buoyant  mass  gravity  potential  energy  storage 
november 2016 by asteroza
Steam from the sun
So at 10x solar concentration, the surface cover composite sheet composed of the graphite flake thermal absorber/boiler coupled to an underlying buoyant porous carbon air foam, creates steam pretty well. I assume the insulating factor of the carbon air foam reflects more heat into the boiler region to improve efficiency, rather than letting heat travel through and warm the bulk water.
graphite  flake  porous  structure  carbon  foam  buoyancy  buoyant  composite  steam  generator  solar  thermal  green  energy  concentrator  concentrating  Delicious 
july 2014 by asteroza
Ocean Based Orbital Payload Delivery Cannon for $250 per pound
Interesting use of a tensile/tensegrity structure to straighten and stabilize the cannon, coupled with netural buoyancy to cut out a lot of the stresses (though at that size current/tidal forces may come into play).
marine  ocean  floating  neutral  buoyancy  hydrogen  gas  gun  orbital  launcher  launch  system  megaengineering  megastructure  concept  design  space  platform  cannon  Delicious 
january 2010 by asteroza

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