Posts by Dan
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...
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...
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...
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...