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- Eye (21834 bytes)
1: ...ight or dark. More complex eyes are used to provide the [[sense]] of [[visual perception|vision]]. Ma...
9: ...es grow outward from brain cells during embryonic development, while mollusk eyes grow inward from ski...
11: ...ranged hexagonally, and which can give a full 360 degree field of vision. Compound eyes are very sensi...
16: Jumping spiders have simple eyes that are so large, supported b...
18: ...ght|thumb|300px|Eye of a Komodo Dragon.Image provided by [http://classroomclipart.com Classroom Clip A... - Ceramics (15941 bytes)
7: ...rthenware and porcelain to decorative tiles and modern sculptures, reflecting both functional and aest...
10: ...cement, leading to more uniform and sophisticated designs.
17: *Hand-Building: This includes pinching, coiling, and slab building. It's one o...
19: ...is popular for making bowls, vases, and other rounded forms.
21: ... making it easier to produce multiple copies of a design. - Pioneer 11 (5118 bytes)
5: ...neer 10. Three pairs of rocket [[thruster]]s provided spin-axis control (maintained at 4.8 rpm) and ch...
7: ...[[telescope]]s with overlapping fields of view to detect [[sunlight]] reflected from passing [[meteoro...
11: ...e Sun at a nearly [[asymptotic latitude]] of 17.4 degrees above the [[solar equatorial plane]] and was...
15: ...e origin of the spacecraft. It includes a drawing depicting a man, a woman, the transition of a hydrog... - Cilium (3845 bytes)
3: ...lium'', which cannot beat and usually serves as a sensor.
6: ...[[arthropod]]s only have non-motile cilia on some sensory nerve cells. Cilia are rare in plants, occurring...
10: ...cell signaling and the control of cell growth and development.
13: Cilia are structurally identical to eukaryotic [[flagellum|flagella]], and t...
15: ...C) called a '''[[basal body]]'''. Basal body is made from the [[centriole]], which migrates to the cel... - Venus (planet) (31010 bytes)
1: ...]], is named after the [[Roman mythology|Roman goddess]] [[Venus (mythology)|Venus]]. A [[terrestrial...
5: ...r: a circle with a small cross underneath ([[Unicode]]: ♀).
7: ...m [[Cythera]]. Other less common adjectives include ''Venerean'' and ''Veneran''.
14: ...ficantly between the night and day sides of Venus despite its extremely slow rotation (less than one r...
16: ...quite similar to Earth. A common conceptual misunderstanding regarding Venus is the mistaken belief t... - Seismograph (4037 bytes)
6: ...cord both S and P waves, but those on the other side of the Earth can only record P waves.
10: ==Design==
12: ...o the mass, an amplifying device, and a recording device.
18: A popular modern design uses strain-beam accelerometers constructed a...
20: ...r amateurs, a PC with a recording sound card provides a computer with an inexpensive analog-to-digital... - Hubble Space Telescope (50930 bytes)
16: |'''Deorbit date'''||circa 2010
38: |'''[[WFPC2]]'''||wide field camera
43: ...ons and has helped astronomers achieve a better understanding of many fundamental problems in astrophy...
45: ...e project to build a space telescope was beset by delays and budget problems. Immediately after its l...
49: ==Conception, design and aims== - Photography (18493 bytes)
2: ...rough [[mechanical]], [[chemical]] or [[digital]] devices commonly known as [[camera]]s.
4: ==Image forming devices==
5: ...mera]] or [[camera obscura]] is the image forming device and [[photographic film]] or a digital storag...
9: The controls include:
14: ... [[Macro photography|macro]], [[Wide-angle lens|wide angle]], or [[Zoom lens|zoom]]) - Digital photography (33923 bytes)
4: ...ther devices, such as [[mobile phone]]s, now include digital photography features.
6: ==Sensors==
8: There are two main types of sensors:
10: * [[charge-coupled device]] (CCD)
13: There are also two main types of sensor mechanisms: - Aperture (3151 bytes)
2: ... speed (ISO), this will regulate the photograph's degree of [[exposure (photography)|exposure]] to lig...
6: ...ture size increases the [[depth of field]], which describes the extent to which subject matter lying c...
8: ...t let through the aperture. A lower f-stop number denotes a greater aperture opening which allows more...
12: ...5-300mm, a physically bigger diaphragm will be needed at 300mm than at 75mm, but the aperture will rem... - Camera (4262 bytes)
1: ...m functioned much as the internal workings of a modern photographic camera, except there was no way at...
7: ...meras this is indicated by symbols (head-and-shoulders; two people standing upright; one tree; mountai...
9: ...objective lens and a focusing lens unit (usually identical to the objective lens) in a parallel body f...
11: ...e or [[random Access Memory|computer memory]] inside the camera for later playback or [[digital image ...
13: ...h between still and motion recording modes. A [[video camera]] is a category of movie camera which sto... - Molecular nanotechnology (10344 bytes)
1: ...ith the systems engineering principles found in modern macroscale factories. Its most well-known expos...
3: ... we actually wanted, with the other species discarded as waste. Nanotechnology could therefore offer m...
10: ...e.pl?sid=03/10/29/2017242][http://www.azonano.com/details.asp?ArticleID=56]
14: ====Smart Materials and Nanosensors====
15: ...d render inert specific viruses. Another is the idea of [[self-healing]] structures, which would repa... - Thermometer (1332 bytes)
1: A '''thermometer''' is a device used to measure [[temperature]]s or temperatu...
4: ...eters relying on different principles. These include:
10: *[[Silicon bandgap temperature sensor]]s
18: ...either into the mouth ('''oral temperature'''), under the armpit ('''axilliary temperature''') or into... - Computer mouse (29399 bytes)
1: ...movement.<br>'''3:''' Optical encoding disks include light holes.<br>'''4:''' Infrared LEDs shine thro...
2: '''5:''' Sensors gather light pulses to convert to X and Y veloci...
3: ... The underside of the mouse houses a device that detects the mouse's motion relative to the flat surf...
5: ... because the cord on early models resembled the rodent's tail, and also because the motion of the poin...
9: [[Image:firstmouseunderside.jpg|frame|The first computer mouse held by invent... - Exposure (photography) (2778 bytes)
1: ...value|exposure value (ev)]]'', with higher values denoting more light.
3: The "correct" exposure for a photograph is determined by the sensitivity of the film used. Film...
7: ... In digital cameras, the photographer can also trade the ISO number against speed and aperture in any ...
10: ...f about one second to 1/1000th of a second. Outside of this range, it becomes necessary to increase t...
12: The [[Zone System]] is another method of determining exposure. - Slugs (3980 bytes)
14: ...rey field slug, ''Deroceras reticulatus''; the garden slug, ''Arion hortensis''; and the [[banana slug...
16: ...dle-shaped ''[[mantle (mollusc)|mantle]],'' and under this are the genital opening and anus. The mantl...
18: ...ough, tongue-like organ with many tiny tooth-like denticles.
27: ...m sliding down vertical surfaces. Mucus also provides protection against predators and helps retain mo...
35: ==Predation, defense and pest contol== - Compound eyes (2024 bytes)
4: ...ng in poor image [[resolution]]; however, it can detect fast movement and, in some cases, the [[polar...
6: ...t along their length, except for the polarization sensor, which is shorter.
10: ... and reflects it to the same angle on the other side. The result is an image at half the radius of the... - Radar (16746 bytes)
3: ...nal returned is tiny, radio signals can easily be detected and [[amplification|amplified]].
5: ...like sound or visible light, would be too weak to detect.
11: ...l]], making radar particularly well suited to the detection of [[aircraft]] and [[ship]]s.
13: ...he targets and received a vague signal, whereas modern systems use shorter [[wavelength]]s (a few [[ce...
15: ...ally the same reasons objects attempting to avoid detection will angle their surfaces in a way to elim... - Global Positioning System (28209 bytes)
5: ...|satellite navigation system]] used for determining one's precise [[location]] and providing...
7: ...s controlled by the [[United States Department of Defense]] and can be used by anyone, free of charge....
8: The GPS system is divided into three segments: space, control, and user.
12: A GPS receiver decodes time signal transmissions from multiple satellit...
14: ... was launched [[November 6]], [[2004]] aboard a [[Delta II]] rocket ''(see article in External links s... - Spectrophotometry (4459 bytes)
1: ...magnetic spectroscopy]] in that spectrophotometry deals with [[visible]] light, near-[[ultraviolet]], ...
3: ..., and the sources of intensity variation they are designed to measure.
6: ... measurement of light absorption, but they can be designed to measure diffuse or specular reflectance....
15: ...aditional visual region spectrophotometers cannot detect if a colorant has fluorecence. This can make ...
18: ...or for the customers to confirm the lamp they decided to purchase is within their specifications.
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