not that long , if you are making a homemade one..
it should only take about 20-45 minutes.
it depends on how detailed you want to make it.
A very long time.
by sunlight maybe??
A periscope makes use of the property of reflection to redirect light. Light enters one end of the periscope, reflects off mirrors inside the periscope, and then exits at the other end, allowing the viewer to see objects outside their direct line of sight.
A periscope uses angled mirrors to reflect light at different angles, allowing it to travel around corners. The mirrors inside the periscope are set up to guide the light path from the object at one end to the observer's eye at the other end, creating the illusion that the observer is seeing directly in front of them.
A periscope looks like a long pipe with a bend on either end. One bend faces a direction, and the other bend faces the opposite direction.
a diagram of a periscope
someone discovered the periscope
how long does it take to make a crayons
well there really is no antonym that i know of for periscope because a periscope is an object.
a periscope
The periscope was invented in 1450 by Johann Gutenberg
The periscope was invented in 1450 by Johann Gutenberg.