water
91. Silk protects from flooding, captures water: barking spider
"The whistling spider uses a silk film over the entrance to its burrow to maintain humidity, and a silk-covered mound at the burrow entrance traps dew or raindrops for drinking and helps prevent flooding in heavy rain. The air trapped around the s...
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94. PAX Water mixer close-up
Close up of the PAX Water mixer impeller, the Lily impeller.
95. PAX Water mixer reduces ice formation
Interior photographs of a water storage tank with (left) and without (right) mixing, demonstrating the reduction in ice formation.
96. Roots maximize water uptake: plants
"To find water, a plant has to position its roots with just as much precision as it arranges its leaves. If moisture is in very short supply, then a plant may have to drive a tap root deep into the ground to reach the water table. Some desert plan...
97. Pressure sucks moisture from soil: desert plants
"Plants again. Even in a desert the soil a little ways below the surface contains liquid water. It's called 'capillary water' and is often thought of as firmly stuck to soil particles. The binding, though, is as much physical as chemical - the wat...
98. Quartz pebbles provide protection from heat, source of water.
"Other undemanding desert plants obtain water by a clever choice of location. The green of plant life sometimes shimmers through the Atacama Desert's many pale, translucent quartz pebbles. These plants obtain filtered light through the mineral, wh...
99. Spider creates underwater air tank: water spider
"Perhaps the most impressive use of gaseous air under water is that of the European water spider, Argyronetes aquatica (Foelix 1996). It is the only spider that lives constantly underwater - Walking, swimming, feeding, mating, and raising young. I...
100. Plant self-irrigates: desert rhubarb
"The rare plant Rheum palaestinum (Polygonaceae) is a perennial hemicryptophyte that grows during the rainy winter in desert mountainous areas in Israel and Jordan that receive an average annual rainfall of ca. 75 mm. It produces between one and f...
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