Category Archives: flexible cover

walefin for optimized turbines

walefin submarineThe humpback whale has pronounced bumps or tubercles along the leading edge of its pectoral flippers (above left). A idealized model of the flipper (above upper right), which was tested in a wind tunnel, demonstrated that the tubercles enhanced hydrodynamic performance…

Technical application:

airblade, turbine, windmill

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Spider Web Glass

Certain spiders protect their delicately crafted insect nets with a special silk rope that reflects ultraviolet rays. Birds can see the ultraviolet rays and recognize the webs as obstacles they should avoid.

spider_glas

If engineers can reproduce the effect, it might save birds from their occasional accidental suicide runs into glassy buildings. German engineers at Arnold Glas copied the spiders and glazed their Ornilux-brand glass with a web-like pattern of ultraviolet-reflecting coating to save the birds from high-speed headaches.

Technical application:

innovative glas against birds collision

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Morpho butterfly; color without pigments

morphoMany morpho butterflies are colored in metallic, shimmering shades of blues and greens. These colors are not a result of pigmentation but are an example of iridescence through structural coloration: the microscopic scales covering the Morpho’s wings reflect incident light repeatedly at successive layers, leading to interference effects that depend on both wavelength and angle of incidence/observance.

Technical application:

“painting” without pigments, thermal sensors

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Gecko feet for car tires

geckoUsing design principles inspired by the nanoscopic hairs on the gecko, UC Berkeley researchers and colleagues have created a novel microfiber array which has very high friction but is not “sticky”.

gecko_tire

 

Technical application:

car tires, drive on solar panels

 

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Self healing materials

genMany processes in organisms based on the self-organization of biological components. For materials scientists, such substances are a dream: you react autonomously to their environment and can adapt to this different conditions. At the U.S. MIT researchers aim to produce such wonders molecules artificially.

Technical application:

self healing materials

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Hook fastener with up to 35 tonns / m²

klettblumeHook and loop fasteners have become commonplace features of both industry and households.

hookfastener

 

These fasteners are resistant to chemicals and can withstand a tensile load of up to 35 tonnes per square meter at temperatures as high as 800°C.

Technical application:

Metaklett is basically suitable for use in all areas that require easily opened but stable fasteners, for example air-conditioning and ventilation systems in building services engineering and automotive construction.

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Fluid wood instead of plastic for incredible structures

fluid_woodArboform acts a lot like any other petroleum-based plastic to a manufacturer. It can be injection-molded as a heated liquid to form any shape. But Arboform is not made of petroleum. Instead, it is made of “Lignin, combined with resins, flax and other natural fibers” as described in this article:

Technical application:

substitute plastic

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Manta Ray goes beyond air

manta_ray_2Air-ray, modelled on the manta ray, is a remote-controlled hybrid construction consisting of a helium-filled ballonet and a beating wing drive. Its lightweight design enables it to “swim” in the sea of air using the lift from the helium in a similar way to the manta ray in watemanta_rayr.

 

 

 

Technical application:

 

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