Greenwood press
Download 1.81 Mb. Pdf ko'rish
|
book-20600
70
PLANE A radio antenna uses metal beams of equal length to support the receiver at its focal point. tive to stairs. They are used to exit highways so that cars can gradually change elevation. They are also used in a variety of tools. Screws have an inclined plane that bends around its center so that they can create an angled entry when break- ing a wall’s surface. Screwdrivers have an inclined plane at their tip so that they can firmly fit into the top of a screw. A Mercator projection is a method used to transform spherical coordinates into a plane. This transformation gives cartographers the opportunity to produce maps on flat surfaces, even though the earth is spherical. An advantage to this technique is that images of maps can be placed into books and read more easily. However, a disadvantage is that the regions near the poles illustrate inaccurate areas of the landmasses. For example, on a Mercator projection map, a country near the North Pole such as Greenland appears almost fifteen times its actual size. Another way to make a plane representation of the earth is to cut along the longitudinal lines and create gores. However, when the gores unfold, the map will have empty spaces, leaving a distortion between distances near the pole. online sources for further exploration Mercator projection The three-point problem from geology The wedge ▲ ▼ ▲ Download 1.81 Mb. Do'stlaringiz bilan baham: |
Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©fayllar.org 2024
ma'muriyatiga murojaat qiling
ma'muriyatiga murojaat qiling