How can i make sundial or railway signal or sand <span title="clock........................................................">clock.......................</span>

Question

How can i make sundial or railway signal or sand clock.......................

Answer 1

You can get kits to build model railway signals from:

http://www.peco-uk.com/Products/ratio.ht...

Answer 2

Stick a small pole in the dirt. Where the shadow lands at 12 noon is 12 noon on the sundial.