Calculate Speed of Train:
U can calculate the speed of ur train. All u'll need is a mobile phone & a window seat. From the window watch out for the numbered white stones alongside d track. The distance btwn 2 stones is 100 m. Just measure time taken by the train from 1 stone to other using stopwatch. Now divide 360 by the time u got on stopwatch, u'll get speed in km/hr.
E.g. If u get 4 sec, then divide 360 by 4.
360/4=90...
more...
Which is 90 km/hr.
its simple maths..
Try n Enjoy...
(N dis wrks only during daytime:D...)