Always carry the microscope by putting one hand under the shoe-shaped base and grasping the curved stand that supports the tube and its lenses with the other hand.
Everything should be in working order, clean and oil free of dust.
If you have a slide with a prepared sample, place it on the stage of the microscope.
To maintain the good condition of your microscope, first and foremost guard it from dust.
Cover the microscope with a plastic hood when you are not using the instrument and always store it in its case.
Clean the microscope carefully to avoid the scratch in the lenses. If some of the lenses have fingerprints, clean them either with lens paper or with some alcohol and a cotton swab.
Rinse dirty slides and cover glasses in liquid detergent and warm water.
Do not touch lenses. ALWAYS start with the least magnification, and work upwards. Clean slides and microscope when finished with it. Cover microscope with dust cover when not in use. Never swing the microscope.
At least 10 centimeters. Preferrably keep it near the center, so its very hard to fall.
Simple Answer:Antonie (Anton) van Leeuwenhoek made innovations to the simple microscope with a single lens.His microscopes received no special name and were enhancements of the "simple microscope." Anton van Leeuwenhoek always referred to his instrument as a Vergroot-glas, which translates into magnifying glass.He also enhanced the overall design of the simple microscope and specimen holder. He constructed at least 25 different designs of the simple microscope. (He rarely used the compound microscope which had been invented 40 years before his birth because his simple microscopes had far greater magnification.)More:Though Anton van Leeuwenhoek did not invent the microscope, he did make a great discovery. About 1670, he found that he could form tiny glass beads that were nearly perfect spheres and also capable of high magnification when used in a simple microscope. Indeed, his little glass spheres could magnify an object 250 times (perhaps more), about ten times better than the best compound microscopes of the day.Beyond the discovery of the methods for making small spherical lenses, van Leeuwenhoek also built microscopes and experimented with their design, addressing the difficult problems of illuminating, holding and viewing the specimens.He made over 500 optical lenses, though they did not necessarily go into 500 different microscopes. The microscopes themselves were expensive and time consuming to construct, but records indicate possibly as many as two hundred were made. In this process he is said to have created at least 25 variations on the basic design of the microscope.Only nine of his microscopes are known to exist today.
To answer this question we need to know what experiment you are doing. Some precautions to take in some experiments is to wear goggles, gloves, and not to stand over top of the experiment in case a gas is produced.
It depends partly on what is dirtying the concrete. If it's oils stains and other motor vehicle fluids, you need at least 2,500 psi and special soaps.
When it's at least 20-30 minutes out.
situate fax machines in the area with least traffic.
You should wear gloves, covering on your body and wear at least a thin face mask when handling aluminum. The powder can be highly flammable so take care not to have it around anything that could ignite it.
Situate fax machines in the least travled areas.
Not..... Placing fax machines in areas of least traffic.
Secure disposal of physical documents is not a special handling requirement to protect privacy data and/or sensitive data.
Situate fax machines in areas with the least traffic.
Situate fax machines in areas with the least traffic is NOT
Situate fax machines in the areas with least traffic
Situate fax machines in areas with the least traffic is NOT
Situate fax machines in areas with the least traffic is NOT
situate fax machines in areas with the least traffic.