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This is our first time (as an engineer) seeing this type of graph that we can't interpret. This is a rough comparision of thermal conductivity from the Wiki page. http://en.wikipedia.org/wiki/Thermal_conductivity

What we know The more we go in the log x axis, the more conductive the material is. Say, silver vs insulation fiber.

What we don't know What the length of each bar presents (in terms of y axis). Say, why silver bar is 3 times the copper and what does it mean.

enter image description here

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  • $\begingroup$ It looks like the size of the bar just changes to have more space to write the name of each material. $\endgroup$ – fffred Oct 4 '13 at 0:26
  • $\begingroup$ Hollow Fill Fiber Insulation Polartherm < Water ! $\endgroup$ – Mehrad Oct 4 '13 at 0:52
  • $\begingroup$ I agree with ffred. Looks to me like the vertical bars for fixed values and the horizontal bars for values with a certain range. $\endgroup$ – mcodesmart Oct 4 '13 at 1:53

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