Soldering Techniques?

[eightyeightfan1]

I'm surprised that one of our more technically advanced members hasn't figured out a way to measure the expansion in his layout using altered conductivity or something.

Someone could do like they do on Mythbusters.
Experiment with different types of track such as brass, steel, nickle silver, with different gauges, on different types of roadbed at different levels of heat, cold and humidity. Take measurements and analyze the data.



Then blow it up!