the mirrors of a periscope have gotten bigger and are easier to see out of.
they use diffrent mirrors
yes it has changed over many years
Because people's interest has changed over the years.
Wave rock has changed over the years because it has changed colour
has hats changed over the years
To use a periscope to look over a wall, you would place the periscope on top of the wall and then look into the eyepiece at the other end. The mirrors inside the periscope will reflect the view from above the wall down to your eye, allowing you to see over the wall without exposing yourself.
Computers have changed in many ways over the years. Technology has advanced< and it has become more easy to do stuff!
An early form of the periscope was used to see over the tops of the trenches.
it changed by... well it changed... It just changed!
The actors over the years have changed
The word "periscope" is a noun. It refers to a device used for seeing over obstacles or around corners, typically by the use of mirrors and lenses.
periscope.