Im posting 2 interesting websites about SRI LANKA Rail Ways
Please check and comment
http://www.srilankanlocos.com/
http://www.scienceland.lk/railway/index.htm
Operating a mechanical mouse.
1: moving the mouse turns the ball.
2: X and Y rollers grip the ball and transfer movement.
3: Optical encoding disks include light holes.
4: Infrared LEDs shine through the disks.
5: Sensors gather light pulses to convert to X and Y velocities
Background info...
Here are some facts of our beloved phone company "NOKIA"
1) The ringtone "Nokia tune" is actually based on a 19th century guitar work named "Gran Vals" by Spanish musician Francisco Tárrega. The Nokia Tune was originally named "Grande Valse" on Nokia phones but was changed to "Nokia Tune"...
This puzzle is called Lateral Thinking . . .
Just Check This Out ! ! !!
Scroll down slowly and be honest to yourself.
Think like a wizard . . .
man
1. ------------
board
Ans. = man overboard
Okay, let's see if you've got...