網頁Step 11. Put some double-sided tape on the back of the flat mirror and introduce it through the ocular hole. Attach it to the chopstick or dowel so that it sits at a 45° angle with the diameter of the large tube. This way, it will deflect the rays coming from the concave mirror and pass them to the small ocular. 網頁2024年3月23日 · Consider the blood collection environment. If a workplace for blood collection is well prepared and hygienic, this can convey safety and professionalism to the patient, giving the blood collection staff the confidence to focus on the patient. Ensure that sharps containers are used correctly to prevent patients from seeing contaminated sharps.
Make Your Own Periscope! Activities UNAWE
網頁A periscope is defined as an instrument used for observing over, around or through an obstacle or object which is prevented by direct line of sight. It consists of an outer case with mirrors at each end at 45° angle. These mirrors are placed parallel to the surface. Jules Carpentier, a French engineer and inventor designed the submarine periscope. 網頁2024年3月23日 · Cut the cardboard tube in half. Draw 2 parallel lines about 1/2 inches apart lengthways along one of the tubes, and then cut out the cardboard between the lines. This will be the inner tube. Check that the inner tube fits snugly into the second tube but can still slide nicely in and out. scratchpad sleeping characters
How To Make a Periscope Homemade Periscope DIY
網頁2024年3月8日 · As you look at the mirror in the bottom of the periscope you see a reflection of the mirror in the top of the device. To make a homemade periscope you’ll need: 2 small mirrors (5 cm x 5 cm is ideal) A cereal box (or a piece of card at … 網頁Sir Howard Grubb perfected the device in World War I. Morgan Robertson (1861–1915) claimed to have tried to patent the periscope: he described a submarine using a … 網頁2024年11月26日 · Periscope is an optical instrument used in land and sea combat, and submarine navigation. It allows an observer to see the surroundings while remaining concealed, behind armor, or underwater. Periscopes are made of two mirrors placed at 45 o angles at each other. Light reflects through these mirrors and shows what is at the other … scratchpad notes