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Cameras have long mimicked the optics of the eye. Both collect and focus light with a convex outer lens. However, cameras have a shortcoming: They typically focus the image onto a flat surface. Whether this surface is covered with film or a digital sensor, distortion results from the projecting of light from a curved lens onto the flat surface. The insertion of additional lenses reduces the distortion, but this adds to camera weight and cost. Our eye with its hemispherical shape has no such problem.
better optical technologies, contact lens
Continue reading eye-lens camera contact lens and monitoring your body for health purposes
One of the smallest traps in the world is inspiring physicists in studies of fluids. Bladderworts are a type of plant that grows in standing water or wet soil, and sometimes in very rough conditions. A unique aspect of this plant is its underwater roots which include many microscopic bladder-like traps. The trap looks like a small bubble and is covered with tiny hairs and “trap-doors.” The plants capture tadpoles, protozoa, or even water fleas, depending upon the species. When the unsuspecting victim approaches the trap-door, it suddenly opens, sucks in the creature, and then shuts again, all in less than one-thousandth of a second. Bladderworts are among the smallest carnivorous plants in the world.
ultra thin pipettes
Continue reading ultra-small lab equipment based on Bladderworts roots
Perhaps you have stood near a wet dog as it dries by shaking its fur. Watch out! An impressive amount of water is thrown off in all directions. The shaking technique for furry creatures including mice, dogs, and bears is studied by researchers at the Georgia Institute of Technology in Atlanta. They find that larger animals tend to move their bodies at a frequency of 4-5 shakes per second. Mice and rats move more rapidly, up to 27 shakes per second. Whatever the size, each creature begins the shaking process with its head and then the process moves along the body. Mathematical formulas have been established for the animal shaking process based on size, nature of the fur, water surface tension, and other variables. The animals apparently know these technical details by instinct.
Continue reading Dog inspired drying machines
The search for a solution led McRae, now a biologist at the National Center for Ecological Analysis and Synthesis, to his past life as an electrical engineer. He had a hunch that the way animals travel through a landscape might be similar to how electricity moves across circuits. If that were the case, circuit theory would help explain how genes disperse.
Continue reading Wild animals (macrosystem) show the same behavior like electrons (microsystem)
Festo has been working intensively on the topic of bionics since the early 90s. In 2006, the Bionic Learning Network was launched – an association of renowned universities, institutes and development companies. Since this time, Festo has been developing and supporting projects and test objects whose basic technical principles are derived from a wide variety of principles found in nature.
Continue reading Festo´s world of bionic solutions
Wind turbines are the Colossus of the modern landscape, their blades sweeping circles more than a football field in diameter. Critics call them unsightly and say that the rotating blades clobber unsuspecting birds.
John Dabiri of Caltech found a solution underwater. He built an experimental wind farm — the Caltech Field Laboratory for Optimized Wind Energy (FLOWE) — in which the location of turbines relative to each other takes advantage of the air flow among them.
Continue reading shoals of fish will offer their secret for windfarms
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
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
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
Termits use a smart way to ventilate their nest.
A team of mechanical and civil engineers at Loughborough University, UK, hopes to construct buildings that can create comfortable living conditions by extending our use of renewable forms of energy. How so? By unlocking a few of the mysteries found in the termite mounds on the plains of Namibia, Africa.
Continue reading Termites nest for ventilating skyscrapers