Prismatic periscopes offer better image quality, reduced light loss, and less bulkiness compared to mirror periscopes. They are also more durable and resistant to scratches or damage.
A spring is grand prismatic in Yellowstone Park.
A spring is grand prismatic in Yellowstone Park.
http://www.wisegeek.com/what-is-a-prismatic-compass.htm
A spring is grand prismatic in Yellowstone Park.
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someone discovered the periscope
a diagram of a periscope
What is the difference between cylindrical and prismatic battery cells?
list the features of prismatic model of society as enumerated by Riggs
The antonym for "periscope" is "submerge." A periscope is a device used to see above water, while submerge means to go underwater or be completely covered by something.
The periscope was invented in 1450 by Johann Gutenberg