Difference between revisions of "Talk:Electrical Conductors"

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{| style="background:#C0C0C0;"
 
{| style="background:#C0C0C0;"
 
  |- style="background:#FFFFFF;color:#000000;font-weight:bold"
 
  |- style="background:#FFFFFF;color:#000000;font-weight:bold"
  | Element || align=center | Electrical resistivity @ 20°C || align=right | Density (near r.t.) || align=center | Found on Luna?
+
  | Element || align=center | Resistivity @ 20°C || align=right | Density (~ r.t.) || align=center | Availability || align=center | Highland || align=center | Lowland
 
  |- style="background:#FFCCCC;color:#000000"
 
  |- style="background:#FFCCCC;color:#000000"
  | Silver || align=right | 15.87 nΩ·m || align=right | 10.490  g·cm<sup>−3</sup> || align=center | Unknown
+
  | Silver || align=right | 15.87 nΩ·m || align=right | 10.490  g·cm<sup>−3</sup> || align=center | Unknown || align=center | Unknown || align=center | Unknown
 
  |- style="background:#FFCCCC;color:#000000"
 
  |- style="background:#FFCCCC;color:#000000"
  | Copper || align=right | 16.78 nΩ·m || align=right | 8.960 g·cm<sup>−3</sup> || align=center | Unknown
+
  | Copper || align=right | 16.78 nΩ·m || align=right | 8.960 g·cm<sup>−3</sup> || align=center | Unknown || align=center | Unknown || align=center | Unknown
 
  |- style="background:#FFCCCC;color:#000000"
 
  |- style="background:#FFCCCC;color:#000000"
  | Gold || align=right | 22.14 nΩ·m || align=right | 19.300  g·cm<sup>−3</sup> || align=center | Unknown
+
  | Gold || align=right | 22.14 nΩ·m || align=right | 19.300  g·cm<sup>−3</sup> || align=center | Unknown || align=center | Unknown || align=center | Unknown
 
  |- style="background:#CCFFCC;color:#000000"
 
  |- style="background:#CCFFCC;color:#000000"
  | Aluminum || align=right | 26.50 nΩ·m || align=right | 2.700 g·cm<sup>−3</sup> || align=center | Yes
+
  | Aluminum || align=right | 26.50 nΩ·m || align=right | 2.700 g·cm<sup>−3</sup> || align=center | Yes || align=right | 133,000 || align=right | 69,700
 
  |- style="background:#CCFFCC;color:#000000"
 
  |- style="background:#CCFFCC;color:#000000"
  | Magnesium || align=right | 43.90 nΩ·m || align=right | 1.738 g·cm<sup>−3</sup> || align=center | Yes
+
  | Magnesium || align=right | 43.90 nΩ·m || align=right | 1.738 g·cm<sup>−3</sup> || align=center | Yes || align=right | 45,500 || align=right | 57,600
 
  |- style="background:#CCFFCC;color:#000000"
 
  |- style="background:#CCFFCC;color:#000000"
  | Sodium || align=right | 47.70 nΩ·m || align=right | 0.968 g·cm<sup>−3</sup> || align=center | Yes
+
  | Sodium || align=right | 47.70 nΩ·m || align=right | 0.968 g·cm<sup>−3</sup> || align=center | Yes || align=right | 3,100 || align=right | 2,900
 
  |- style="background:#CCFFCC;color:#000000"
 
  |- style="background:#CCFFCC;color:#000000"
  | Iron || align=right | 96.10 nΩ·m || align=right | 7.150 g·cm<sup>−3</sup> || align=center | Yes
+
  | Iron || align=right | 96.10 nΩ·m || align=right | 7.150 g·cm<sup>−3</sup> || align=center | Yes || align=right | 48,700 || align=right | 132,000
 
  |- style="background:#CCFFCC;color:#000000"
 
  |- style="background:#CCFFCC;color:#000000"
  | Chromium || align=right | 125.00 nΩ·m || align=right | 7.860 g·cm<sup>−3</sup> || align=center | Yes
+
  | Chromium || align=right | 125.00 nΩ·m || align=right | 7.860 g·cm<sup>−3</sup> || align=center | Yes || align=right | 850 || align=right | 2,600
 
  |- style="background:#CCFFCC;color:#000000"
 
  |- style="background:#CCFFCC;color:#000000"
  | Titanium || align=right | 420.00 nΩ·m || align=right | 4.506 g·cm<sup>−3</sup> || align=center | Yes
+
  | Titanium || align=right | 420.00 nΩ·m || align=right | 4.506 g·cm<sup>−3</sup> || align=center | Yes || align=right | 3,100 || align=right | 31,000
 
  |- style="background:#CCFFCC;color:#000000"
 
  |- style="background:#CCFFCC;color:#000000"
  | Manganese || align=right | 1440.00 nΩ·m || align=right | 7.210 g·cm<sup>−3</sup> || align=center | Yes
+
  | Manganese || align=right | 1440.00 nΩ·m || align=right | 7.210 g·cm<sup>−3</sup> || align=center | Yes || align=right | 675 || align=right | 1,700
 
  |- style="background:#FFFFFF;color:#000000"
 
  |- style="background:#FFFFFF;color:#000000"
  |  || align=center | <small>''Lower number => better conductor''</small> || align=center | <small>''r.t. = room temperature''</small> ||
+
  |  || align=center | <small>''Lower # => better''</small> || align=center | <small>''r.t. = room temperature''</small> || align=center |  || align=center | <small>''ppm by weight''</small> || align=center | <small>''ppm by weight''</small>
 
  |}
 
  |}
 
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Revision as of 10:57, 11 May 2007

Element Resistivity @ 20°C Density (~ r.t.) Availability Highland Lowland
Silver 15.87 nΩ·m 10.490  g·cm−3 Unknown Unknown Unknown
Copper 16.78 nΩ·m 8.960 g·cm−3 Unknown Unknown Unknown
Gold 22.14 nΩ·m 19.300  g·cm−3 Unknown Unknown Unknown
Aluminum 26.50 nΩ·m 2.700 g·cm−3 Yes 133,000 69,700
Magnesium 43.90 nΩ·m 1.738 g·cm−3 Yes 45,500 57,600
Sodium 47.70 nΩ·m 0.968 g·cm−3 Yes 3,100 2,900
Iron 96.10 nΩ·m 7.150 g·cm−3 Yes 48,700 132,000
Chromium 125.00 nΩ·m 7.860 g·cm−3 Yes 850 2,600
Titanium 420.00 nΩ·m 4.506 g·cm−3 Yes 3,100 31,000
Manganese 1440.00 nΩ·m 7.210 g·cm−3 Yes 675 1,700
Lower # => better r.t. = room temperature ppm by weight ppm by weight

Thinking Moon

The Sodium entry is a good example of thinking Moon. That is, looking at ideas that are insignificant when used on Earth but could really save the day when used on the Moon. It does take a rather long scenario to show how Sodium could be used, but this is part of the process needed to compare complicated technical ideas.

--Jriley 13:25, 11 May 2007 (UTC)