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Who invented the lens grinding machine?
Hans and Zacharias Janssen
What is the difference between piston and plunger?
The difference between a piston and a plunger may be understood if you observe what forms the seal that precludes the fluid from passing either the Plunger or Piston. The 'piston' is a steel block equipped with elastomers that makes wall contact with the cylinder wall. As it moves inside the cylinder it wipes the wall and displaces the entire content of the cylinder. In this case the seals form part of the piston. The 'plunger' is a steel block that moves through a hole that is equipped with elastomer seals. The plunger displaces a portion of the cylinder contents, i.e., the volume of the plunger that enters the cylinder. The plunger does not wipe the walls of the cylinder. The seals, in case, are a part of the cylinder block. Umair Aslam Mechanical Engineer PARCO, Pakistan
How is a cyringe made?
It is made up of a hollow needle, which is attached to a tube and a plunger. When the plunger handle is pulled back, fluids are drawn into the tube. The fluid is forced out through the needle when the handle is pushed down.
Who invented liquid lens technology?
Mishobi Realtad and his co-assistant David Todd Poskey invented in 1976 it was mostly used as a joke for middle aged kids to mess around with, but then the world found a use for it and is now used in every lab in America and maybe even the world.
What is principle of lens antenna?
The principle of the lens antenna is THE EQUALITY OF THE PATH LENGTH.
When were contact lens invented?
2001
Who invented the colored contact lens?
ME (:
When was the plunger invented?
when was the plunger invented and what gave him the idea of inventing
Where was the contact lens invented?
Eye don't know.
Who invented the contact lens?
Californian optician Kevin Tuohy (1919-1968) introduced the first contact lens in 1948.
Who invented the long wearing contact lens?
Andrew Guolette
Who invented the disposable contact lens?
Louis J. Girard
When were the first contact lenses invented?
Californian optician Kevin Tuohy (1919-1968) introduced the first contact lens in 1948.
Who invented chromatic lens?
the person who invented the chromatic lens
Who invented contact lense?
Adolf Gaston Eugen Fick invented contact lenses.
Who invented the plunger?
The creator of the common plunger is no other than Vince Vanata
Who invented lens?
In 1888, Adolf Fick was apparently the first to successfully fit contact lenses, which were made from blown glass
