The 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…
airblade, turbine, windmill
Continue reading walefin for optimized turbines
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.
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.
innovative glas against birds collision
Continue reading Spider Web Glass
Many 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.
“painting” without pigments, thermal sensors
Continue reading Morpho butterfly; color without pigments
swim suit, clean surfaces, glue this foil on airplanes, small riffles will cause turbulance and degrease friction.
Continue reading Shark´s skin make us faster
The sandfish is a species of skink that burrows into the sand and swims through it.
reduce friction, might help rescue teams to “dive” into collapsed buildings
Continue reading Sand fish might help rescue teams
Using 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”.
car tires, drive on solar panels
Continue reading Gecko feet for car tires
Many 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.
self healing materials
Continue reading Self healing materials
Hook and loop fasteners have become commonplace features of both industry and households.
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.
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.
Continue reading Hook fastener with up to 35 tonns / m²
Arboform 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:
Continue reading Fluid wood instead of plastic for incredible structures
Air-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 water.
Continue reading Manta Ray goes beyond air