Here is an activity to try with a length of adhesive tape. Press the tape against a dusty surface several times. As expected, the tape quickly loses its holding strength as dust particles collect and coat the sticky side. In contrast, consider tree frogs which thrive in dusty, wet, or muddy surroundings. Yet they cling securely to branches and leaves, even hanging upside down. How are they able to hold on without falling?
Continue reading tree frog climb wet and dirty surfaces as well as upside down surfaces without falling
Our hard-working lungs clearly show intelligent planning. Within our lungs, countless tiny air sacks called alveoli exchange gases from the bloodstream, supplying fresh oxygen and removing carbon dioxide. The component membranes which allow separation and passage of the gases are about one thousand times thinner than a printed period. The total gas exchange area adds up to at least 70 time an adult’s total body surface area, or the size of a volleyball court. Specialized chemicals, especially carbonic anhydrase, help carry on the continuous gas exchange process.
Continue reading will our lungs help to reduce carbon dioxid emissions on our planet?
Transpiration is the evaporation of water from the leaves of plants and trees. The undersides of leaves are dotted with hundreds of tiny openings called stoma. Carbon dioxide enters the leaf through these pores, and water escapes. A mature tree may evaporate hundreds of gallons of water on a warm, dry day. The process cools the vegetation and also allows the internal flow of nutrients. The familiar veins within leaves transmit the water to the stoma. Studies have shown that the branching veins, called a dendrite pattern, are spaced out for maximum water flow. This leaf vein pattern may help design engineers build more efficient irrigation systems.
Tomato leaf stoma
generate , harvest water
Continue reading Leaves learn us how to produce electricity and harvest water
The dromedary camel is at home in the hot Sahara Desert where temperatures can exceed 170°F (77°C). Special features of the camel’s nose allow it conserve precious moisture with each breath.
seawater-salt removal, desert greening
Continue reading Dromedary inspires for seawater-salt removal
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
To drink water, the S. gracilipes stands on a small ridge of sand using its long, spindly legs.
water bottles, tents for refugees, Steam Power Condensers, Refrigeration, Atmospheric Water Generation
Continue reading Desert beatle help us to harvest water
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
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