Johannas Gutenberg invented the periscope in the 1430's for people to see over the crowds during the vigintennial religious festival at Aachen,Germany.
In 1854 Hippolyte Marie-Davy invented the first naval periscope, which used a vertical tube and two small mirrors at a 45-degree angle. Simon Lake used the periscope in his submarine and Sir Howard Grubb perfected the deceive in WW1 (1914-1918). In the Gallipoli campaign a solider used a periscope on top of a riffle. In France,these was a life-saving tool and troops also used these to seek out their trenches without putting their lives in danger.
From a simple deceive to see to a weapon of war, the periscope has been through alot
Tuesday 15 September 2015
Monday 14 September 2015
Visual brainstroming ideas on how to make a Periscope
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjntM1LbeK5y1nuvl_Sg_pa2leLYk7Jwujep2y-sfTXxw-BTDABz_4sBBNNGxq8RSfSRZQNbsEZ5lANi1wntCePnzPcqdYTzUR74svHgeVwtMHogbqYxGsLfEg3-7L27ZvGPcnaNWBX2-LA/s1600/images-4.jpeg
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjo297cocmJpDMlhWfQoXkbiaHSsBMdsfeI70bbwFGAghotUMWxa-TXWrk5bzVoGvPDQ8nPVMEsXfp4Fotl56V6QAtLwdMVTjfpBNDcF5zY2CNsEzAbiBQdb81Kc083PB7jljPcB7ebJqEO/s320/periscope.gif
How I made my periscope
This is my first post!
So today I am going teach you how to make a periscope
Materials :
- A PVC plumbing pipe (or you can use cardboard or anything else really)
- Separate pieces of the PVC pipe
- Two small mirrors
- Ruler
- Duct tape or Masking tape
- Pencil or Pen
- Saw (if using PVC pipe)
- Craft glue
- Cardboard
- Glass Cutter
- Use the saw to cut the PVC pipe a considerable length
- Stick pieces of cardboard to the back of the mirror
- After it dried stick it inside the pipe at a 45-degree angle
- Use the separate pieces of the pine to connect the to the main pipe
- Wrap the duct tape around end of the two separate pipes near the mirror
And finish, have using your new periscope!
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