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Scientific instruments vary greatly in size, shape, purpose, complication and complexity. They include relatively simple laboratory equipment like scales, rulers, chronometers, thermometers, etc. Other simple tools developed in the late 20th century or early 21st century are the Foldscope (an optical microscope), the SCALE (KAS Periodic Table ...
Contact lenses. to correct refractive errors of the eye; a little invasive. Phoropter. used in refraction testing. Tonometers. used to determine the intraoccular pressure (IOP) - useful in glaucoma; video link for various types of tonometers. Speculum: to keep the eyes open during any operation. Universal eye speculum.
Used for intravenous injections and cannulation. Microscope. used for visualising minute structures, including microbes. Bunsen burner or spirit lamps or candles. source of fire / heat. Ultracentrifuge. used to separate particles dispersed in a liquid according to their molecular mass. Electrophoresis apparatus.
Time. Watch, a time measurement device. In the past, a common time measuring instrument was the sundial. Today, the usual measuring instruments for time are clocks and watches. For highly accurate measurement of time an atomic clock is used. Stopwatches are also used to measure time in some sports.
Technical drawing tool. Drafting tools may be used for measurement and layout of drawings, or to improve the consistency and speed of creation of standard drawing elements. Tools such as pens and pencils mark the drawing medium. Other tools such as straight edges, assist the operator in drawing straight lines, or assist the operator in drawing ...
This occurs when a firm grip is needed to hold a pipette, such as when jamming on a tip, and results in diminished hand strength. Corrective action: Use pipettes with hooks or other attributes that allow a relaxed grip and/or alleviate need to constantly grip the pipette. This will reduce tension in the arm, wrist and hand. Thumb plunger pipetting
Cutting wire with diagonal pliers /side cutters. Pliers are a hand tool used to hold objects firmly, possibly developed from tongs used to handle hot metal in Bronze Age Europe. [1] They are also useful for bending and physically compressing a wide range of materials. Generally, pliers consist of a pair of metal first-class levers joined at a ...
Instrument. Uses. Flow cytometer. used for automated cell counting as in total blood count, differential count, etc. Tissue bath or organ bath or Dale's apparatus. used in full tissue experiments, for example using guinea pig ileum mainly used in pharmacology for application of drugs to these tissues. Sahli Haemoglobinometer.
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