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- Sally Ride (1826 bytes)
1: ...o fly into outer space. Only two other women preceded her: [[Valentina Tereshkova]] ([[1963]]) and [[S...
3: [[Image:SallyRide.jpeg|right]]
5: ...cs]], [[general relativity]], and [[free-electron laser physics]]. She later became the first American wo...
7: In [[1987]], Ride left [[NASA]] to work at the [[Stanford Universit...
9: ...to serve on both panels investigating Shuttle accidents, the [[STS-51-L|''Challenger'' explosion]] and... - Engraving (3556 bytes)
1: ... [[silver]] or [[gold]] are engraved, or may provide an [[intaglio (printmaking)|intaglio]] plate, whe...
5: ...lity of line that is characterized by its steady, deliberate appearance and clean edges. The angle tin...
11: ...illennium B.C. The majority of so-called engraved designs on ancient gold rings or other items were pr...
15: ...ries, and/or used when a more "elegant" design is desired and a limited color range is acceptable.
17: ==Modern engraving== - Glass (26176 bytes)
1: The materials definition of a '''glass''' is a uniform [[amorphous...
3: ...ed the word ''glaes'' to describe [[amber]], recorded by [[Roman Empire|Roman]] historians as ''glaesu...
5: ...glasses in common use as a building, container or decorative material.
9: ...d with very smooth and impervious surfaces. These desirable properties lead to a great many uses of gl...
13: ...ommon glass''' is mostly amorphous [[silicon dioxide]] ([[Silicon|Si]][[Oxygen|O]]<sub>2</sub>), which... - Printing (4400 bytes)
3: ...zlamywak.jpg|right|thumb|The [[folding machine|folder]] of newspaper web offset printing press]]
11: ...' was already in use by the 6th century BC. The oldest surviving book printed using the more sophistic...
13: ... design of his machine on a wine press, Gutenberg developed the use of raised and movable type and fro...
15: ...7 printers by 1500. In 1476, a printing press was developed in England by [[William Caxton]]; in 1539,...
18: ...efelder]] discovered [[lithography]]. [[Blake]] made relief etchings. Early in the [[nineteenth centur... - Timeline of invention (28171 bytes)
3: ...s ambiguity, the date of the first practical, fielded version of the invention is used here.
60: * [[Odometer]] : [[Ancient Rome|Rome]]: [[Archimedes]]?
66: ...ntury BC|200s BC]]: Compound [[pulley]]: [[Archimedes]]
74: * [[1st century]]: [[Rudder|Stern mounted rudder]] in [[History of China|China]]
83: * [[9th century|800s]]: [[Black powder|Gunpowder]] in [[History of China|China]] - List of sports (7304 bytes)
1: ...is played, and there are many more sports to be added. This system has a disadvantage because some spo...
114: ...on motorised transportation, also not really considered "sports" by the majority of people.
134: * [[Modern pentathlon]]
142: * [[Aeromodelling]]
193: * [[Roller derby]] - Tree (23723 bytes)
3: ...ennial]], woody [[plant]]. Though there is no set definition regarding minimum size, the term generall...
8: ...nkiaer.jpg|250px|right|thumb|An [[oak]] tree in [[Denmark]]]]
9: ...iology)|families]] of plants. Trees thus show a wide variety of growth form, leaf type and shape, bark...
13: ...lled a '''[[forest]]'''. Several [[biotope]]s are defined largely by the trees that inhabit them; exam...
16: ...]] consists of ''xylem'' cells, and [[bark]] is made of ''phloem'' and other tissues external to the v... - List of inventors (14020 bytes)
11: *[[Archimedes]], (circa 287 BC-212 BC), [[Greece]]
12: *[[Manfred von Ardenne]], (1907-1997), [[Germany]]
14: ...s]],(1927 - June, 1996)of the [[Canada|Canadian]] Department of Agriculture — instant mashed po...
19: *[[Robert Baden Powell]]- scouting movement
22: ... U.S. solar inventor and developer; architectural designer. - Microscope (8708 bytes)
1: ...te or very small, not easily visible with the unaided eye. In other words, requiring a ''microscope'' ...
11: ...c aberration]] and [[spherical aberration]]. In modern microscopes the mirror is replaced by a lamp un...
24: #object holder or stage
26: #diaphragm and [[condenser]]
34: ...tudy thin specimens as they have a very limited [[depth of field]]. Typically they are used to examine... - Apple Macintosh (24250 bytes)
7: ...29, 2005. The next version, [[Mac OS X 10.5]], codenamed "Leopard", is scheduled to be released at th...
12: ...etc. This metaphor is sometimes called the WIMP model for '''W'''indows, '''I'''cons, '''M'''enus, '''...
13: ...e of a [[Computer mouse|mouse]] or other pointing device in personal computing.
14: ...rag" behaviors to perform actions with a pointing device.
19: * Aesthetic and ergonomic industrial "All in One" design that reduced clutter. - Pinhole camera (6994 bytes)
1: ...e [[aperture]] has to be a small pinhole on the order of .020 inches or less. The [[shutter]] of a pi...
4: ...cura]]), or can expose film or a [[charge coupled device]] (CCD). Pinhole cameras with CCDs are somet...
8: ...f the hole for light coming in at other than a 90 degree angle.
10: .... Industrially produced pinholes have access to [[Laser]] etching, but a hobbiest can still produce pinho...
12: ...e & rotating the pin as it glides in and out in order to produce a smooth circular hole. - March 22 (9294 bytes)
11: ... IV Adolf of Sweden|Gustav IV Adolf]] to the [[Sweden|Swedish]] throne.
12: ...871]] - In [[North Carolina]], [[William Woods Holden]] becomes the first governor of a [[U.S. state]]...
16: *[[1933]] - President [[Franklin Delano Roosevelt]] signs into law a bill legalizing ...
19: ...]: In the [[Mediterranean sea]], [[Regia Marina]] defeats [[Royal Navy]] in the [[Second Battle of Sir...
20: *[[1945]] - The [[Arab League]] is founded when a charter is adopted in [[Cairo]], [[Egypt]... - Atlanta, Georgia (39442 bytes)
15: |popdensity=1,221
17: |latitude=33°65' N
18: |longitude=84°42′ W
22: ...lt, Atlanta is a common case study for college students who study Urban Geography around the globe. ...
24: ...19th century]] as a railroad hub. It was largely destroyed by Union forces during the [[American Civi... - Computer mouse (29399 bytes)
1: ...movement.<br>'''3:''' Optical encoding disks include light holes.<br>'''4:''' Infrared LEDs shine thro...
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...
11: ....com/3543541.html 3541541]. Ball and wheel by ''Rider'', 9/74, [http://www.freepatentsonline.com/38354... - Cornea (4779 bytes)
3: ...the outside and the [[aqueous humour]] at the inside. In [[human]]s, the cornea has a diameter of abou...
9: ... Here they are listed from the outside to the inside:
17: * '''Posterior limiting membrane''' (also '''Descemet's membrane'''): a thin acellular layer that...
19: ...r lining acting as a barrier to prevent water inside the eyeball from moving into and hydrating the co...
21: The cornea is composed mostly of dense connective tissue, similar to the surrounding ... - Arsenic (12497 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
5: {| align="center" border="0"
25: | [[Density]], [[Mohs hardness scale|Hardness]]
39: | [[van der Waals radius]] || 185 pm
47: | [[Oxidation state]]s ([[Oxide]]) || '''+-3''',5 (mildly [[acid]]ic) - Dysprosium (8843 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
19: | [[Lanthanide]]s
24: | [[Density]], [[Mohs hardness scale|Hardness]]
41: | [[van der Waals radius]] - Europium (8579 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
19: | [[Lanthanide]]s
24: | [[Density]], [[Mohs hardness scale|Hardness]]
41: | [[van der Waals radius]] - Gallium (9500 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
5: {| align="center" border="0"
26: | [[Density]], [[Mohs hardness scale|Hardness]]
45: | [[van der Waals radius]]
54: | [[Oxidation state]]s ([[Oxide]]) - Hafnium (9162 bytes)
2: {| border="1" cellpadding="2" cellspacing="0" align="right...
4: {| align="center" border="0"
23: | [[Density]], [[Mohs hardness scale|Hardness]]
40: | [[van der Waals radius]]
49: | [[Oxidation state]] ([[Oxide]])
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