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Thistle funnels are used to add small volumes of liquids to an exact position. Thistle funnels are found with or without taps. The thistle tube shaft is designed to allow insertion through a small hole present in some stoppers , permitting the tube to be inserted into a container such as an Erlenmeyer flask .
The Thiele tube, named after the German chemist Johannes Thiele, is a laboratory glassware designed to contain and heat an oil bath. Such a setup is commonly used in the determination of the melting point or boiling point of a substance .
Filter funnels, thistle funnels (shaped like thistle flowers), and dropping funnels have stopcocks which allow the fluids to be added to a flask slowly. For solids, a powder funnel with a short and wide neck/stem is more appropriate as it prevents clogging.
Maps and electoral vote counts for the 2012 presidential election. Our latest estimate has Obama at 277 electoral votes and Romney at 191.
A man performing during the Kendrick Lamar halftime concert at #SuperBowl LIX unfurled a Palestinian flag and was chased off stage and finally tackled and removed by security. #SBLIX #Palestine ...
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Laboratory sample tubes are used to hold small quantities of substances undergoing experimentation or testing. These tubes are usually made of glass, but can also be made of plastic or metal. They vary in size and purpose. Laboratory sample tubes must not be confused with glass tubing, which can be utilized to carry fluid between laboratory ...
Foodborne botulism is a potentially deadly condition that’s caused by eating food contaminated with botulinum toxin, a potent toxin that attacks the body’s nervous system.The disease is ...