PDF-A converging or diverging world

DESA Working Paper No 2STESA2005DWP2A Converging or Diverging WorldBob SutcliffeThis paper discusses some of the problems of method and data in measuring world inequality It describes some rece. How do different lenses affect the image we see.. Starter. : how do glasses help to correct long and short sighted vision?. Key words . Lens – creates an image by refracting light . Converging lenses . Introduction to Physics II. . Class 6 – . Outline:. Ch. 23, sections . 23.6-23.8. The Thin Lens Equation . The . Lens-Maker's Equation . Image . Formation with Spherical Mirrors. Slide from http. ://hyperphysics.phy-astr.gsu.edu/hbase/vision/colcon.html. Diverging rays through a Converging Lens Focal length, f s s Introduction to Physics II. . Class 7 – . Outline:. Ch. 23, sections . 23.6-23.8. The Thin Lens Equation . The . Lens-Maker's Equation . Image . Formation with Spherical Mirrors. Slide from http. ://hyperphysics.phy-astr.gsu.edu/hbase/vision/colcon.html. Introduction to Physics II. . Class 7 – . Outline:. Ch. 23, sections . 23.6-23.8. The Thin Lens Equation . The . Lens-Maker's Equation . Image . Formation with Spherical Mirrors. Slide from http. ://hyperphysics.phy-astr.gsu.edu/hbase/vision/colcon.html. Refraction of Light. EM lesson 8. Convex . (converging) Lens. Thicker in the center than at the edges. Have positive focal lengths . Converge. . parallel rays of light that pass through them. Rules for convex lenses. Lenses and Optical Instruments . Key Points. Thin Lenses; Ray Tracing. Combinations of Lenses. The Human Eye; Corrective Lenses. Compound Microscope. References. 23. -7,8,9; 25-2,3,4,5. . Thin lenses are those whose thickness is small compared to their radius of curvature. They may be either converging (a) or diverging (b).. LENSES. A light ray bends as it enters glass and bends again as it leaves. This refraction is due to the difference in the average speed of light in glass and in air.. Glass of a certain shape can form an image that appears larger, smaller, closer, or farther than the object is actually viewed.. Images formed by mirrors. plane mirrors. curved mirrors . Concave (converging). Convex (diverging). Images formed by lenses. the human eye. correcting vision problems. nearsightedness. farsightedness. Images formed by mirrors. plane mirrors. curved mirrors . Concave (converging). Convex (diverging). Images formed by lenses. the human eye. correcting vision problems. nearsightedness. farsightedness. The cells of the nervous system and neurotransmitters at . synapses. (a) Structure and function of neurones. (c) Function of converging, diverging and reverberating pathways. NS cells and neurotransmitters at synapses. Lenses. A transparent object used to change the path of light. Examples: . Human eye. Eye glasses. Camera. Microscope. Telescope. Reading stones used by monks, nuns, and scholars ~1000 C.E.. Lenses . plane mirrors. curved mirrors . Concave (converging). Convex (diverging). Images formed by lenses. the human eye. correcting vision problems. nearsightedness. farsightedness. astigmatism. depth perception. A laser is used to remove some tattoos. What . colour. could it be? . A mix of red, blue and green. A mix of red and green. A mix blue and white. Red. Question two. What can lasers be used for?. Removing tattoos and burning through walls.