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Mosquito coil Mosquito coil. A mosquito coil is a mosquito-repelling incense, usually made into a spiral, and typically made using dried paste of pyrethrum powder. The coil is usually held at the center of the spiral, suspending it in the air, or wedged by two pieces of fireproof netting to allow continuous smoldering.
Metofluthrin is a pyrethroid used as an insect repellent. [1] The vapors of metofluthrin are highly effective and capable of repelling up to 97% of mosquitoes in field tests. [2]
By placing one coil on top of another, different shapes can be formed. As this is done while the clay is still fresh and soft, individual coils can be joined seamlessly with simple pressure, rather than by scoring and/or applying slip to the surface. Optionally, coils may only be joined internally or externally, leaving them visible on the ...
Mosquito control is a vital public-health practice throughout the world and especially in the tropics because mosquitoes spread many diseases, such as malaria and the Zika virus. Mosquito-control operations are targeted to multiple problems: Nuisance mosquitoes bother people around homes or in parks and recreational areas;
Barro negro (black clay) pottery is a style of pottery distinguished by its color, sheen and unique designs, and is most often associated with the town of San Bartolo Coyotepec. [35] The origins of this pottery style extends as far back as the Monte Albán period and for almost all of its history, had been available only in a matte grayish ...
The pot is then pushed on a flat surface to create a flat surface, thereby creating the base. A base can be made by rolling three coils and pressing them together, and then onto the bottom of the pot. Pinched, compressed clay may also be used as a base for building coil pots. The base of the pot is less prone to cracking when formed this way.
These include various human figures, skeletal figures for Day of the Dead, candle holder, incense burners, angels and religious items. Both have similar methods for creating their works, using white, red and sand colored clays. Bodies of figures are made by first creating disks of clay, then folding them.
A pipeclay triangle is a piece of laboratory apparatus that is used to support a crucible being heated by a Bunsen burner or other heat source. It is made of wires strung in an equilateral triangle on which are strung hollow ceramic, normally fire clay, tubes.
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