Periscopes are commonly used by submarines and boats to view objects above the water's surface without being detected. They are also used in certain sports and events to provide alternate viewing angles to spectators. Additionally, periscopes can be used in surveillance and security applications to observe areas from a concealed position.
Periscopes look like long tubes that have lens at both ends and have handles that can move it so other people can look through it
Periscopes look like long tubes that have lens at both ends and have handles that can move it so other people can look through it
Some shapes have angles and so they are important in defining the shapes. And angles are absolutely critical for angles. They are the very essence of their existence: if it were not for angles then there would be no angles.
You would use periscopes for spying or looking above a persons head
Periscopes were used in both WW1 and WW2. They were used on submarines and in the trenches. It was dangerous to look over the top of a trench so soldiers developed "trench periscopes".
No, periscopes allow you to observe objects while you are hidden.
The new photonics masts are much different than the older style periscopes, so they only extend about 30 feet (they don't have a hull penetration). For traditional periscopes, usually around 30-40' above the sail/fairwater. Periscope depth for most modern submarines is about 65'.
There are two main types of periscopes: optical periscopes, which use mirrors to reflect light and provide a view of objects above the surface of the water, and digital periscopes, which use cameras and screens to provide a similar view. Optical periscopes are commonly used in submarines, while digital periscopes are becoming more popular due to advances in technology.
Big ships such as Navy's have periscopes and submarines have it too. If it is high for you to see you will use an periscopes.
It could be said that submarine crews use periscopes, and that is probably the most common use of these devices.
People use periscopes primarily on submarines to see above the water's surface without the vessel being detected. Periscopes are also used in some sports events, like in golf to see over crowds or obstacles. Additionally, periscopes are sometimes used in buildings or construction sites to view areas that are difficult to access.