出典:Wikipedia
出典:『Wikipedia』 (2011/06/09 19:39 UTC 版)
A telescope is an instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light). The first known practical telescopes were invented in the Netherlands at the beginning of the 17th century. The word telescope can refer to a wide range of instruments detecting different regions of the electromagnetic spectrum.
a telescope
astronomic telescope
双眼鏡.
collimating a telescope
telescope and binocular
a telescope named a zenith telescope
look through a telescope
a telescope that is attached to a phototelescope
to look through a telescope
a telescope for astronomical observation called a Schmidt telescope
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