difference between problem solving and decision making ppt

13 Nov difference between problem solving and decision making ppt

This can help me a lot. © 1996-2015 National Geographic Society, © 2015- A whole magnifying glass is probably more commonly used, but a lens is much more more comfortable to hold. Yes, but it will be smaller. Telescopes take in light from the object you are observing and do not need a built in light source. By using this service, some information may be shared with YouTube. Are there any effects from looking at the sun? If I use a concave lens will I see an upside down image? The scope uses two lenses to bend light, which makes an object appear closer than it really is. A paper towel roll that is empty would be best. ", "It's so easy and nice. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Do I have to have a light source in my telescope for it to work? How can I put the lenses in if the roll is so small? Your telescope is a "refracting telescope," because it uses lenses to help gather more light than your eye could possibly do on its own. https://kids.nationalgeographic.com/explore/nature/make-a-telescope.html. Be careful not to drop the magnifying glass, it breaks easily. I am longing to buy a telescope and I don't have enough money now. It doesn't state the magnification power of the lenses/magnify glasses, but using this structure you can make a reasonably powerful telescope. You'll need a piece of corrugated paper that is about 24 inches in length (this is a ridge material, easily available from paper stores or craft stores). Finally, make another tube slightly larger than the first and slide the tube with the lenses into it. One piece should be slightly larger than the other. it is shown in one of the images how the lens fits into the tube. The lens. How many lenses can be used in between these two lenses? For best results get a concave-convex lens with a diameter of 49 mm, and a focal length of 1,350 mm and a plano-concave lens with a diameter of 49 mm, and a focal length of 152 mm. now keep the lens at the end of the sheet and roll it along the circumference of the lens. You'll also need to the make holes at the end of the outer tube for the eyepiece and the cap. What is the magnification of this design? Step 2: Check Out Your Glasses & Cut Tubes Accordingly. To make a telescope, start by wrapping a piece of 24 inch long corrugated paper around the diameter of a magnifying glass lens. ", "It really helped me. Approved. Gather all your materials. "I am making read this article, telescope so fun, lot of time, thanks. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Homemade Telescope Step 1: Materials:. The coping saw is the most effective for making clean, straight lines, but you can use any other kind of saw or cutting device if you need to. You have to insert one more lenses in between but by doing so the size or length of the telescope will be double or more than double what it is now. Then, place two magnifying glass lenses of different sizes into the slots and glue them into place. In some pictures there are magnifying glasses with handles, and in other pictures it's just the lens. This article has been viewed 517,776 times. ", "Thanks for helping me with the project.". Lenses with different curvatures will change the magnification of the telescope. 2020 National Geographic Partners, LLC. ", "It was a really helpful article. This article has been viewed 517,776 times. We use cookies to make wikiHow great. http://www.planet-science.com/categories/experiments/outdoors/2011/10/make-a-telescope.aspx, http://www.space.com/24114-how-to-build-a-telescope-science-fair-projects.html, http://galileo.rice.edu/lib/student_work/astronomy96/mtelescope.html, https://www.space.com/24114-how-to-build-a-telescope-science-fair-projects.html, consider supporting our work with a contribution to wikiHow. How far can I see with it? Next, glue the paper into a tube shape and use scissors to cut 2 slots into it about 1 inch from each end. However, bear in mind that every lens you add reduces image quality, brightness, contrast, etc. For tips on how to use a mailing tube to make a telescope, read on! The spacers hold the second lens in place at the end of the outer section of the mailing tube. Get a bigger roll, then apply super glue on the edges of the lens and put it in. Include your email address to get a message when this question is answered. glue one side of the black paper to the white (glue the one of the longer edges of both sheets together). The images will be upside down, since astronomers don't care about up and down in space (there is no up or down in space, after all). Use this make-it-yourself device to explore the world, then check out these tips to keep track of what you see. Now I know how to make a telescope! If you happen to have no telescopes or binoculars at home, and you can make one yourself! % of people told us that this article helped them. All tip submissions are carefully reviewed before being published. cut 17cm*40cm pieces from both charts. To create this article, 35 people, some anonymous, worked to edit and improve it over time. To create this article, 35 people, some anonymous, worked to edit and improve it over time. The size of the image produced by the telescope depends on the curvature of the lenses. Cardboard tube (ex. from kitchen wrap or aluminum foil). Making a Telescope with Magnifying Glasses, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/6\/60\/Make-a-Telescope-Step-1-Version-2.jpg\/v4-460px-Make-a-Telescope-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/6\/60\/Make-a-Telescope-Step-1-Version-2.jpg\/aid386692-v4-728px-Make-a-Telescope-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"