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Electric fields stir films on small scales
By applying an electric field in the plane of a water based film – and applying a voltage from electrodes in the perpendicular direction – it is possible to make the film rotate at speed and perform a mixing action. |
18/08/2008
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Inflatable ring locks chair for disabled
A small, battery powered air pump and an inflatable ring are key to stopping wheeled desk chairs from moving, so that the wholly or partially disabled can get in and out of them more safely |
13/07/2008
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Root mechanics tip balance of power
An ingenious device – inspired by growing plant root tips – is opening up a new type of hydraulic fluid power. Tom Shelley reports |
13/07/2008
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Gaining the edge
A high-speed compressor neatly combines the best features of rotary and reciprocating machines in a simple basic unit. Tom Shelley reports |
13/07/2008
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Battle of the bulge
A hydraulic effect is being harnessed to build up massive amounts of energy – and may well be the key to producing cheap power from sea waves |
09/04/2008
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Waiving the rules on platform motion
A combination of control and hydraulics is removing a major problem for those who live and work in a marine environment. Tom Shelley reports |
09/02/2008
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Braking breakthrough
Advances in pneumatics are being applied to improve dramatically the efficiency of lorry braking. Tom Shelley reports |
28/01/2008
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Steaming ahead
Could steam trains make a return to the tracks? Yes, if a chemical method of making steam takes off, writes Lou Reade |
05/11/2007
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Welcome diversion from pipe blockages
Tubular pipe inserts – attached to down drain pipes to divert water to water butts – tend to result in blockages, both in the pipe inserts and in the drain pipes |
15/10/2007
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Armed against damage
Innovative components are emerging that enable manipulator arms to be used in difficult environments. Tom Shelley reports |
14/05/2007
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Sealing the challenge
With the hydraulics in the Thames Barrier now a quarter of a century old, there is some concern that the harder seals are now coming to the end of their lives |
14/05/2007
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ABS for hydrostatic drives
Robert Bosch has come up with an anti-lock braking system for fast moving hydrostatically driven vehicles, particularly tractors |
14/05/2007
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Dental drill keeps constant pressure
A three-chambered design is ensuring a continuous flow of water under pressure to dental drills, while avoiding backflow should the mains pressure drop |
14/05/2007
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Hydraulic pumps boost output
Enerpac’s ZA4-series of high-pressure hydraulic air-driven pumps is designed for in-plant, industrial applications and medium to large construction projects |
16/01/2007
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Like a hurricane
In Herefordshire and Hertfordshire, hurricanes hardly ever happen – but what about elsewhere in the world? Lou Reade reports on a novel valve design that could lead to stronger buildings |
20/12/2006
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Air jet dries hands at 400mph
Dyson’s new product – a hand dryer that claims to be more hygienic and efficient than its rivals – could be the first in a series of technologies to use its digital motor. Lou Reade reports |
16/11/2006
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