March 11, 2008
Low-pass filters : FILTERS

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February 14, 2008
solar thermal power plant

solar thermal power plant

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February 12, 2008

Shawn Frayne’s Windbelt

Frayne’s device consists of a flat, taut membrane that flutters within its housing as air passes through it. At each end of the membrane are magnets that oscillate between metal coils as the band flutters, effectively creating an electric charge. According to the 28-year-old Frayne, prototypes of the Windbelt have generated 40 milliwatts in 10-mph slivers of wind, making his device 10 to 30 times as efficient as the best microturbines. 

video: http://link.brightcove.com/services/player/bcpid1214137061?bctid=1233395616 

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Submersible Robot Runs on Sea’s Heat | LiveScience To power its propulsion, the submersible gathers thermal energy from the ocean. When it moves from cooler water to warmer areas, internal tubes of wax are heated up and expand, pushing out the gas in surrounding tanks and increasing its pressure. The compressed gas stores potential energy, like a squeezed spring, that can be used to power the vehicle. 

Submersible Robot Runs on Sea’s Heat | LiveScience

To power its propulsion, the submersible gathers thermal energy from the ocean. When it moves from cooler water to warmer areas, internal tubes of wax are heated up and expand, pushing out the gas in surrounding tanks and increasing its pressure. The compressed gas stores potential energy, like a squeezed spring, that can be used to power the vehicle. 

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February 10, 2008
Dehumidifier - Wikipedia

Water collected from any dehumidifier is technically distilled water in that it does contain few of the minerals and other particulates that are removed in a true distillation process.

 

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Smart polymers

An intelligent system is more sophisticated and interprets the property changes of the smart polymer. For example, it consists of a material that emits a stimulus and of an adaptive material that controls the adaptations of one of its properties to counterbalance the stimulus and to maintain a stable state of the system. More precisely, for example, a structure that vibrates in a given phase of operation is associated with a responsive polymer. A vibration sensor informs a generator of stimulus that requests the responsive polymer to modify the mechanical properties of the unit and to counterbalance the vibratory state.

 

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Photochromics

Photochromic inks are clear when not exposed to UV radiation and become coloured under UV light. The inks change according to the intensity of the light.

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Thermochromics

Thermochromic inks or dyes are temperature sensitive compounds that temporarily change color with exposure to heat.

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Dry ice

1 pound of dry ice will create 2-3 minutes of fog effect. the hotter the water, the more fog but the quicker dissipation of the dry ice.

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Living wall systems

growing plants on walls with soil

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The Vertical Garden by Patrick Blanc

growing plants on walls without any soil

 

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February 6, 2008
Bubbles
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Mist effect - The Blur Building

the saturation of the air with moisture, which produces the visible mist effect, depends on a number of physical environmental conditions. these parameters include the speed and direction of the wind, the environmental temperature and the atmospheric humidity.

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building a dew catcher

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