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Retort

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 Retort In a chemistry laboratory, a retort is a device used for distillation or dry distillation of substances. It consists of a spherical vessel with a long downward-pointing neck. The liquid to be distilled is placed in the vessel and heated.   Retorts sterilize food after it is sealed in a container by steam or other heating methods. Typically, the sterilization temperatures vary from 230°F/110°C to 275°F/135°C. ... Newer agitation retort processes have reduced cook times, resulting in energy savings and less degradation of the food quality.   The steam-air retort uses a mixture of steam and air, which is added to create an over-pressure in the retort. The air over-pressure allows thermal processing of a wide variety of containers including: glass, metal cans, rigid plastic, and flexible pouches.   It also means like to counter in other references.
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Control

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 Control A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable.   noun.  English Language Learners Definition of control. The power to make decisions about how something is managed or done. The ability to direct the actions of someone or something. : an action, method, or law that limits the amount or growth of something   There are three main variables: independent variable, dependent variable and controlled variables. Example: a car going down different surfaces. Independent variable: the surface of the slope rug, bubble wrap and wood. Dependent variable: the time it takes for the car to go down the slope.
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Microscope

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 Microscope is a laboratory instrument used to examine objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using a microscopic. Microscopic means being invisible to the eye unless aided by a microscope.   There are several different types of microscopes used in light microscopy, and the four most popular types are Compound, Stereo, Digital and the Pocket or handheld microscopes.   5 Different Types of Microscopes:       Stereo Microscope.     Compound Microscope.     Inverted Microscope.     Metallurgical Microscope.     Polarizing Microscope.   A general biological microscope mainly consists of an objective lens, ocular lens, lens tube, stage, and reflector. An object placed on the stage is magnified through the objective lens. When the target is focused, a magnified image can be observed through the ocular lens.   At 100x magnifica...
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