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Iris = Ἶρις
Iris is the daughter of Electra and Thaumas!
The goddess Iris married Zephyrus, god of the west wind.
Iris Chang wrote the book The Rape of Nanking, about the Nanking Massacre.
152 Burke road glen iris
Robert Hooke
Cameras have an iris diaphragm.
The radial and circular muscles of the iris.
The iris diaphragm adjusts the amount of light allowed in.
An iris diaphragm controls the amount of light admitted to a lens. Closing the iris diaphragm will decrease the brightness and increase the contrast of an image.
On a microscope, the iris diaphragm controls the amount of light.
The Iris
This iris diaphragm of a microscope contains the amount of light that can enter through to the specimen. If the condenser iris diaphragm is open, the image will be bright; if it is closed, it will be dim.
Robert Hook's many scientific contributions include the iris diaphragm in cameras, the balance wheel in a watch, the universal joint used in vehicles, and the coining of the term "cell" in biology.
It got its name from its shape. It closes similar to the iris in your eye.
By closing the iris diaphragm, it closes the peripheral light so you can get a better image.
the iris