A pipette is something commonly used in a laboratory, be it at a university, a hospital, or a fully fledged scientific research facility. A pipette is commonly used as a laboratory tool to transport a measured volume of liquid. In regular usage a pipette is used in analytical chemistry, molecular biology, and a number of medical tests on say liquids like blood, sperm, or urine. Pipettes come in a number of different designs for several purposes, these carry varying levels of accuracy and precision. From a single piece glass pipette to a far more complex adjustable or electronic pipette, this piece of technology has undergone several revisions for varying usage.
Many pipette types work by creating something of a partial vacuum above the liquid-holding chamber and then selectively releases this vacuum to draw up and dispense. A pipette that dispenses between one and one thousand microlitres are deemed micropipettes, whereas a macropipette signifies that it dispenses and holds far greater volumes of a liquid solution. Two different types of micropipettes are used in practical scenarios: air-displacement pipettes and positive-displacement pipettes. In particular a piston driver air-displacement pipette is a micropipette that dispenses an adjustable volume of liquid from a disposable tip.
The pipette is something of an example for how flexible science can be, despite being entirely rooted in being precise. In order perform different tasks, variations such as the ones above have been created in the model of the pipette. Instead of developing an entirely new design to perform the same task, a number of elements from the pipette have been taken and blended with the specifications to perform a different job. This is incredibly important to the advancement of science for a very obvious reason, because why should you spend forever designing a tool to perform a job when you could easily recycle a previous design and incorporate elements into it to take on the task at hand? Without this kind of thinking science would have unfortunately stalled entirely decades ago. The humble pipette is something of a success story in how effective that type of mentality can be to scientists.
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