Search results

No page with that title exists You can create an article with this title or put up a request for it. Please search Wikipedia before creating an article to avoid duplicating an existing one, which may have a different name or spelling.

Showing below 12 results starting with #1.

View (previous 20) (next 20) (20 | 50 | 100 | 250 | 500).

No article title matches

Page text matches

1. Timeline of invention (28171 bytes)
   1: This is a chronological list of [[invention]]s.
   3: ...e there is ambiguity, the date of the first practical, fielded version of the invention is used here.
   6: * 2.4 MYA: [[Oldowan|Stone tools]] in [[Africa]]
   8: ... Controlled [[fire]] in [[Cradle of Humankind|Africa]]
   37: * 3500 BC: [[Carts]] in [[Sumer]]
2. List of inventors (14020 bytes)
   5: ==Alphabetical list==
   11: *[[Archimedes]], (circa 287 BC-212 BC), [[Greece]]
   14: ...d Asselbergs]],(1927 - June, 1996)of the [[Canada|Canadian]] Department of Agriculture — instan...
   18: ...bage]], (1791-1871), [[England]] — [[Analytical engine]]
   20: ...ekeland]] (1863) - (1944), [[Belgian]]–American — [[plastic]]
3. Capacitor (29664 bytes)
   2: ...'every''' multi-[[conductor]] [[geometry]] has '''capacitance'''.
   4: == Physics of the capacitor ==
   7: ...e plates, at the boundary with the dielectric. Because each plate stores an equal but opposite charge...
   9: ...es. (The air gap is shown for clarity; in a real capacitor, the dielectric is in direct contact with ...
   11: === Capacitance ===
4. Computer mouse (29399 bytes)
   1: ...p the ball and transfer movement.<br>'''3:''' Optical encoding disks include light holes.<br>'''4:''' ...
   3: ...ce on which it sits. The mouse's 2D motion is typically translated into the motion of a [[cursor]] on ...
   5: ... can be mouse like. In popular usage, the plural can be either ''mice'' or ''mouses''. See [[English...
   13: ...n or nose --- but ultimately, the mouse won out because of its simplicity and convenience.
   15: ...November 17]], [[1970]] for a ''"X-Y Position Indicator For A Display System"''. At the time, Engelba...
5. Modem (21628 bytes)
   1: ...information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce t...
   3: ...s and 0s' of a personal computer into sounds that can be transmitted over the [[telephone line]]s of P...
   5: ...ations]], "radio modems" transmit [[serial communications|repeating frames of data]] at very high data...
   7: ... light into electronic digital data streams. Optical modems routinely have data rates in excess of a ...
   9: Modems can be used over any means of transmitting analog si...
6. Antimony (9093 bytes)
   26: | [[Density]], [[Mohs hardness scale|Hardness]]
   36: | [[Atomic radius]] (calc.) || 145 (133) [[picometre|pm]]
   52: ! colspan="2" bgcolor="#cccc99" | Physical properties
   68: | [[Vapor pressure]] || 2.49 E-9 [[Pascal|Pa]] @ 6304 K
   74: | [[Electronegativity]] || 2.05 ([[Pauling scale]])
7. Arsenic (12497 bytes)
   25: | [[Density]], [[Mohs hardness scale|Hardness]]
   35: | [[Atomic radius]] (calc.) || 115 (114) [[picometre|pm]]
   51: ! colspan="2" bgcolor="#cccc99" | Physical properties
   67: | [[Vapor pressure]] || __ [[Pascal|Pa]] at __ K
   73: | [[Electronegativity]] || 2.18 ([[Pauling scale]])
8. Gallium (9500 bytes)
   20: | [[Chemical series]]
   26: | [[Density]], [[Mohs hardness scale|Hardness]]
   32: ...="2" align="center" | [[Image:Ga,31.jpg|125px|Typical (melted blob)]]&nbsp;[[Image:Gallium1_640x480.jp...
   39: | [[Atomic radius]] (calc.)
   60: ...an="2" align="center" bgcolor="#cccccc" | '''Physical properties'''
9. Germanium (8776 bytes)
   26: | [[Density]], [[Mohs hardness scale|Hardness]]
   37: | [[Atomic radius]] (calc.)
   58: ...an="2" align="center" bgcolor="#cccc99" | '''Physical properties'''
   79: | 0.0000746 [[Pascal|Pa]] at 1210 K
   87: | 2.01 ([[Pauling scale]])
10. Nitrogen (10073 bytes)
    1: ...er | number=7 | symbol=N | name=nitrogen | left=[[carbon]] | right=[[oxygen]] | above=- | below=[[phos...
    8: {{Elementbox_section_physicalprop | color1=#a0ffa0 | color2=green }}
    14: {{Elementbox_heatcapacity_jpmolkat25 | (N₂)<br />29.124 }}
    22: {{Elementbox_atomicradiuscalc_pm | [[1 E-11 m|56]] }}
    29: {{Elementbox_cas_number | 7727-37-9 }}
11. Rubidium (10211 bytes)
    7: ...align="center" | [[Potassium|K]]<br>'''Rb'''<br>[[Caesium|Cs]]&nbsp;&nbsp;<br>&nbsp;<br>&nbsp;
    23: | [[Density]], [[Mohs hardness scale|Hardness]]
    34: | [[Atomic radius]] (calc.)
    55: ...an="2" align="center" bgcolor="#FF6666" | '''Physical properties'''
    76: | 1.56 &times; 10^-4 [[Pascal (unit)|Pa]]
12. Solar cell (27643 bytes)
    1: ...ble [[electrical]] [[energy]]. This conversion is called the '''photovoltaic effect'''. The field of r...
    3: ..., remote radiotelephones, [[water]] pumping applications, etc. Solar cells (in the form of modules or...
    15: ...prior patent concerning methods of increasing the capacity of photosensitive cells.
    19: ...up2;. So a 10% efficient module of 1 square meter can power a 100 W light bulb. Costs and efficiencies...
    21: ...talline silicon solar cells come in three primary categories:

View (previous 20) (next 20) (20 | 50 | 100 | 250 | 500).

Search in namespaces :
(Main) Talk User User talk Academic Kids Academic Kids talk Image Image talk MediaWiki MediaWiki talk Template Template talk Help Help talk Category Category talk
List redirects   Search for