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Isomers of Bromochlorobenzene Skeletal formula: General Common names o-bromochlorobenzene ortho-bromochlorobenzene m-bromochlorobenzene meta-bromochlorobenzene p-bromochlorobenzene para-bromochlorobenzene Systematic name: 1-bromo-2-chlorobenzene 1-bromo-3-chlorobenzene 1-bromo-4-chlorobenzene Molecular formula: BrC 6 H 4 Cl Molar mass: 191.45 g ...
removing all the contents of the eyeball during evisceration (complete removal of all structures within the eye in diseases like endophthalmitis: Lid plate: flat large instrument that has a groove and is placed between the lid and globe of the eye to provide a solid support for eyelid surgery Hammer, chisel and bone gouge: bone cutting and shaping
Have streak-free glasses for years to come with this mega-popular mega-kit. Includes one bottle of gentle, effective cleaner and a microfiber cloth — all made in the U.S.A.
Borosilicates contain about 10% boric oxide, have good optical and mechanical characteristics, and are resistant to chemical and environmental damage. Other additives used in crown glasses include zinc oxide, phosphorus pentoxide, barium oxide, fluorite and lanthanum oxide. The crown/flint distinction is so important to optical glass technology ...
Observing the eye's interior required alignment of the observer's vision and the light source. This was discovered by William Cumming, a young ophthalmologist at the Royal London Ophthalmic Hospital , who wrote that "every eye could be made luminous if the axis from a source of illumination directed towards a person's eye and the line of vision ...
These special types of glasses are magnifiers, meaning they help people see things (most often text) up close, explains Tal Raviv, M.D., founder and medical director of Eye Center of New York ...