Posts by Dan
Each fuel has a flash point. Below that point, the fumes are not dense enough to sustain a flame. You can find a table here: http://en.wikipedia.org/wiki/Flash_point And a nice video here: http://w...
It is/was a popular pastime for environmentalists to chain themselves to the rails, and worse, to throw hooks onto the catenary. Trains catch these hooks and rip the catenary down. For this reason...
The needle of a compass is often made from a magnetically very soft material. It is very easy to re-magnetize the needle. This does not happen normally, because the needle always aligns with the ex...
I just bought the 310xt, because it stores a lot of data (does everything you want, but doesn't have a barometric altimeter, just gps altitude). I am very happy with it. Because it is slightly olde...
