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- Eye (21834 bytes)
1: ... organs are found in a variety of creatures. The simplest eyes do nothing but detect whether the surround...
9: ...itreous humour]], with a focusing [[lens (vision)|lens]] and often an [[iris of the eye|iris]] which reg...
11: ...es as is often believed). Each sensor has its own lens and photosensitive cell(s). Some eyes have up to ...
13: ...rilobites had only one, and some had thousands of lenses in one eye.
15: ...se. They do have [[photosensitive]] cells, but no lens and no other means of projecting an image onto th... - Glass (26176 bytes)
1: ...time for a regular [[crystal]] lattice to form. A simple example is when [[Sucrose|table sugar]] is melted...
32: ...tive index, and is used in producing high-quality lenses. Large amounts of [[iron]] are used in glass th...
59: ...elds, [[flask]]s, [[test tube]]s, [[Lens (optics)|lenses]] and other laboratory equipment are often made...
144: *Likewise, precision optical lenses and mirrors used in microscopes and telescopes ... - Sun (20830 bytes)
168: ...s the only part of the Sun cool enough to support simple molecules such as [[carbon monoxide]] and [[water...
213: ...tes to the normal [[UV]]-induced yellowing of the lens and [[cornea]] over periods of decades, and could... - Timeline of microscope technology (1673 bytes)
6: ...r compound microscope with a convex and a concave lens.
8: ...[[London]], a compound microscope with two convex lenses.
13: ...[1674]] - [[Anton van Leeuwenhoek]] improves on a simple microscope for viewing biological specimens. - Cell (biology) (28190 bytes)
27: ...karyote|Prokaryotic]]''''' cells are structurally simple. They are found only in single-celled and [[Colo...
56: Prokaryotic genetic material is organized in a simple circular DNA molecule (the bacterial [[chromosome...
141: |[[Binary fission]] (simple division)
244: ...enhoek]] teaches himself to grind [[Lens (optics)|lenses]], builds a [[microscope]] and draws [[protozoa... - Microscope (8708 bytes)
3: ...age of an object placed in the focal plane of the lens(es).
7: ==Simple optical microscope==
8: ...ill found in the [[magnifying glass]], the [[hand-lens]], and the [[loupe]].
11: ...ve and eyepiece assemblies. These multi-component lenses are designed to reduce [[Aberration in optical ...
19: #ocular lens or eye-piece - Sundial (16148 bytes)
55: The simplest sundial is a disk mounted on a bar. The bar mu...
97: ...es, U.S. Special Forces have taken to engraving a simple sundial on their [[knife]]-blade. It works even ...
114: One of the simplest sundials that reads clock time is an equatorial...
120: ...dials to indicate local noon, and they provided a simple and accurate time reference for households that d...
122: ...the society. The typical noon-mark sundial was a lens set above an analemmatic plate. The plate has an... - Albert Einstein (43065 bytes)
16: ...red a slow learner, possibly due to [[dyslexia]], simple [[shyness]], or the significantly rare and unusua...
99: ...e light emanating from a star was [[Gravitational lens|bent]] by the [[Sun]]'s gravity when it passed cl... - Digital photography (33923 bytes)
22: ...for some linear array type at the highest-end and simple [[web cam]]s at the lowest-end, a [[digital memor...
50: *The ability to shoot RAW captures: in simple terms, this is the ability to have a file that co...
63: ... modern digital SLRs, when combined with high-end lenses can match or even exceed the detail of film pri...
70: ...eras require no batteries and, being mechanically simple, are able to operate in extreme environments.
78: *Digital [[single-lens reflex camera|single-lens reflex]] (SLR) cameras (preferred by more advance... - Pinhole camera (6994 bytes)
1: ...''' is a [[camera]] without a [[photographic lens|lens]]. The light producing the image passes through a...
27: ...the photographer for a particular purpose. In its simplest form, the photographic pinhole camera consists ...
36: ...ens & focusing assembly has been damaged (smashed lens, dropped in sand etc.) can be reused as pinholes ...
57: ...w.exploratorium.edu/light_walk/camera_todo.html A simple pinhole camera that works with rare type 126 cart... - Viking Age (10637 bytes)
10: In 911, the French king, [[Charles the Simple]], was able to make an agreement with the viking ...
60: ..."telescope" was invented in the 1600. See [[Visby lens]]. - Cell (29541 bytes)
27: ...karyote|Prokaryotic]]''''' cells are structurally simple. They are found only in single-celled and [[Colo...
56: Prokaryotic genetic material is organized in a simple circular DNA molecule (the bacterial [[chromosome...
141: |[[Binary fission]] (simple division)
244: ...enhoek]] teaches himself to grind [[Lens (optics)|lenses]], builds a [[microscope]] and draws [[protozoa... - Cornea (4779 bytes)
1: ...an the lens, but whereas the [[curvature]] of the lens can be adjusted to "tune" the focus, the curvatur...
19: * '''Corneal endothelium''': a simple [[squamous]] or low [[cuboid|cuboidal]] epitheliu...
35: ... (as opposed to removed) by a specialized contact lens. the technique is known as [[orthokeratology]]. - Film (18911 bytes)
14: ...raxinoscope]]. These machines were outgrowths of simple optical devices (such as [[magic lantern]]s), and...
45: ... sophisticated [[filmstock]]s and [[Lens (optics)|lenses]], allowing directors to film in increasingly d...
126: *[http://grouplens.org GroupLens Research] at the [[University of Minnesota]]
133: *[http://movielens.umn.edu MovieLens] Personalized, free movie recommendations from - Trilobite (9216 bytes)
21: ...y nine, orders and over 15,000 species. Most were simple, small marine animals that filtered mud to obtain...
40: ...of lenses in one eye. In these compound eyes, the lenses are arranged hexagonally. A living species with...
43: ... A single [[cornea|corneal membrane]] covered all lenses. These eyes had no sclera, the white layer cove...
46: ...[Phacopida]]. The lenses were separate, with each lens having an individual cornea which extended into a...
49: ...nd only in [[agnostida|Cambrian Eodiscina]]. Each lens was separate and had an individual cornea. The sc... - Scientific method (40667 bytes)
29: ...n such order that, by commencing with objects the simplest and easiest to know, I might ascend by little a...
102: ...the known facts, which is nevertheless relatively simple and easy to handle. If a model is mathematically ...
119: ...l lens-full.jpg|right|thumb|200px|[[gravitational lensing|Einstein's prediction (1907): Light bends in a...
172: ..., the search has been neither straightforward nor simple. - Tetrapod (26290 bytes)
106: ...r, so the [[focal length]] of the [[lens (vision)|lens]] was altered in order to properly function. The ...
118: ...vis|pelvic]] girdle also was much larger than the simple plate found in fishes, accommodating more muscles...
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