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506881
Caption: A converging lens focuses the rays from a distant object by causing them to converge at a focal point behind the lens
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 11.61 MB
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48220
Caption: Businesspeople With Telescopes
Artist: Lael Henderson
Release: Not Applicable
File Size: 30.10 MB
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52228
Caption: Figure Holding Up Target
Artist: Larry Limnidis
Release: Not Applicable
File Size: 51.47 MB
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77528
Caption: Man With Telescope On Graph Line
Artist: James Endicott
Release: Not Applicable
File Size: 27.98 MB
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51354
Caption: Man With Telescope
Artist: Phil & Jim Bliss
Release: Not Applicable
File Size: 30.09 MB
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77529
Caption: Man On Bird With Telescope
Artist: James Endicott
Release: Not Applicable
File Size: 27.97 MB
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76074
Caption: Businessman/Dollar Sign/Telescope
Artist: Charles Waller
Release: Not Applicable
File Size: 27.97 MB
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48226
Caption: People With Telescope/Hot Air Balloon
Artist: Lael Henderson
Release: Not Applicable
File Size: 30.11 MB
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50062
Caption: Man With Telescope On Ladder Above Maze
Artist: Leon Zernitsky
Release: Not Applicable
File Size: 29.15 MB
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44314
Caption: Man In Hot Air Ballon
Artist: Laura Tedeschi
Release: Not Applicable
File Size: 30.11 MB
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43020
Caption: Side Of Head Showing Ear
Artist: David Ridley
Release: Not Applicable
File Size: 30.06 MB
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53109
Caption: Businessman/Eyeball
Artist: Marvin Mattelson
Release: Not Applicable
File Size: 30.07 MB
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43287
Caption: Pyramid, arrows and computer
Artist: Lyn Boyer
Release: Not Applicable
File Size: 27.97 MB
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43017
Caption: Gears Orbiting Other Gears
Artist: David Ridley
Release: Not Applicable
File Size: 30.14 MB
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51367
Caption: Optimistic Outlook/Rainbow
Artist: Phil & Jim Bliss
Release: Not Applicable
File Size: 15.70 MB
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47770
Caption: Men With Magnifying Glass/Target
Artist: Vicki Wehrman
Release: Not Applicable
File Size: 12.03 MB
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51427
Caption: Man Funneling Arrows To Target
Artist: Steve Dininno
Release: Not Applicable
File Size: 30.04 MB
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48698
Caption: Business Advancement
Artist: Barbara Maslen
Release: Not Applicable
File Size: 30.08 MB
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24089
Caption: Maze With Stilt Walker
Artist: Leon Zernitsky
Release: Not Applicable
File Size: 30.34 MB
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43410
Caption: Large eye with computer at center
Artist: Steve Kropp
Release: Not Applicable
File Size: 30.09 MB
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522751
Caption: Man Looking At Rainbow
Artist: Gary Waters
Release: Not Applicable
File Size: 49.66 MB
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43008
Caption: Face With Light From Eyes
Artist: David Ridley
Release: Not Applicable
File Size: 30.06 MB
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49644
Caption: Man With Telescope/Objective
Artist: Bek Shakirov
Release: Not Applicable
File Size: 30.93 MB
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481195
Caption: Myopia, or nearsightedness, can be corrected with concave lenses to allow near objects to be brought into focus by the eye.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 8.19 MB
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481059
Caption: Hyperopia, or farsightedness, can be corrected with convex lenses to reduce the eye's effort to bring an object into focus.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 8.19 MB
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480982
Caption: Astigmatism results from a nonuniform curvature of the cornea that produces distorted vision.
Artist: Encyclopaedia Britannica
Release: Not Applicable
File Size: 8.19 MB
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75874
Caption: Man with telescope on tower
Artist: Andy Giarnella
Release: Not Applicable
File Size: 1.00 MB
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1190
Caption: a businessman switching on the light
Artist: ImageZoo
Release: Not Applicable
File Size: 30.54 MB
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1561
Caption: a bride holding a bouquet of flowers
Artist: ImageZoo
Release: Not Applicable
File Size: 27.81 MB