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The sublimated material collects (5) on the cold finger proper, cooled by a coolant (blue) circulated through ports 1 and 2. A cold finger is a piece of laboratory equipment that is used to generate a localized cold surface. It is named for its resemblance to a finger and is a type of cold trap. The device usually consists of a chamber that a ...
The light sensitivity of the chemicals used was known in the 1890s and several related printing processes were patented at that time. Whiteprinting replaced the blueprint process for reproducing architectural and engineering drawings because the process was simpler and involved fewer toxic chemicals.
Acute bronchitis, also known as a chest cold, is short-term bronchitis – inflammation of the bronchi (large and medium-sized airways) of the lungs. [2] [1] The most common symptom is a cough. [1] Other symptoms include coughing up mucus, wheezing, shortness of breath, fever, and chest discomfort. [2] The infection may last from a few to ten ...
Architectural drawing, Canada, 1936. This is a simple process for the reproduction of any light transmitting document. Engineers and architects used to draw their designs on cartridge paper; these were then traced by hand on to tracing paper using Indian ink, which were kept to be reproduced with the cyano-copier whenever they were needed.
for use in oral examination Transfusion kit: to transfuse blood and blood products Tuning fork: to test for deafness and to categorize it Ventilator: to assist or carry out the mechanical act of inspiration and expiration so the non-respiring patient can do so; a common component of "life support" Wartenberg wheel: for neurological use Watch ...
There are many cold medicine options. Medical experts say there are several things to know when choosing the best one for you.
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used to hold specimen or samples Sterile loops: used to inoculate test samples into culture media for bacterial or fungal cultures, antibiograms, etc.; not heated before use—these are disposable pre-sterilised Thermal cycler: used to amplify segments of DNA via the polymerase chain reaction (PCR) process. Tissue culture bottles