Tag: wool
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Xylotheque
A xylotheque or xylothek (from the Greek xylon for “wood” and theque meaning “repository”) is special form of herbarium that consists of a collection of authenticated wood specimens.[1] It is also known as a xylarium (from the Greek xylon for “wood” and Latin arium meaning “separate place”). Traditionally, xylotheque specimens were in the form of book-shaped volumes, each made of a particular kind of wood and holding samples of the different parts…
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nature’s first Green Fuel Is gold: A Car That Runs On Urine?
The concept of cars running on urine has been explored by several researchers, but it hasn’t yet resulted in a commercially viable vehicle. Here’s what happened with some of the key developments: Ohio University Research (2009): Professor Gerardine Botte developed a catalyst that could extract hydrogen from urine more efficiently than from water. This technology…
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Polish Cochineal (Porphyrophora polonica)
Polish cochineal (Porphyrophora polonica), also known as Polish carmine scales, is a scale insect formerly used to produce a crimson dye of the same name, colloquially known as “Saint John’s blood”. The larvae of P. polonica are sessile parasites living on the roots of various herbs—especially those of the perennial knawel—growing on the sandy soils of Central Europe and other parts of Eurasia. Before the development of aniline, alizarin, and other synthetic dyes, the insect was…
