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Tag Archives: underwater

Sony aims a camera at drones and robots for industrial users

Sony ILX-LR1 industrial drone camera app

Sony has created a 61Mpixel interchangeable lens camera for professionals with industrial applications, such as those using drones for inspection, investigation, surveying or mapping. ILX-LR1, as it will be called, is box-shaped and measures 100 x 74 x 42.4mm and 240g. M3 screw holes allow mounting on any of its six sides, and there is a 1/4-20 UNC threaded (‘tripod’) ...

Prototype tidal turbine tested in the Thames

Sensor Technology Thames turbine 767

Kingston University is testing a hydroelectric turbine prototype from a pontoon in the Thames. Developed by Hales Marine Energy near Eastbourne, the aim is to create a turbine that can be used in the sea as well as rivers, sitting on a submergible tank that normally rests on the sea bed, but can be floated to the surface for maintenance. ...

Jet-powered submarine is <1mm across

TUChemnitz-micro-jet-sub

German scientists have created a steerable jet-powered submarine under 1mm across. Compared with 16m coin, is the 0.8 x 0.8 x 0.14mm submarine The sub has been built by the Chemnitz University of Technology and consists of two tubular engines, one on either side of a flat body. It swims in its own mono-propellant fuel – a solution of hydrogen peroxide. ...

Study fast fish for jumping aqua robots

MIT archer fish

MIT is taking a close look at archer fish. Not for their famous trick of spitting water at insects to make them fall into the water, but for their ability to beat other fish to that falling food. So that it doesn’t miss its meal, the archer fish can jump out of the water and catch the falling insect in ...

Surfaces self-dry under water

Northwestern-non-wetting-surface-model-296x300-296x200.jpg

Water just rolls off some natural surfaces – like lotus leaves. The key is little hairs, but what principles are at work? A team of US, Danish and Swiss engineers think they have got to the bottom of how to keep surfaces dry under water. What has to happen is that water vapour has to form and be trapped close ...