Monthly Archive:: August 2014
14 Aug 2014
Camera in a spacecraft :Basics of functioning
Today many electronic gadgets like a television, cell phone are able to transfer pictures from one place to far off place without wires. All this has become possible because of transmission via radio waves which does not need a medium to travel. The spacecraft sends pictures taken in the outer space to earth much in
13 Aug 2014
Eyes and vision : Basics ought to be known.
A normal eye can see objects clearly when placed at a minimum distance of 25cms. There is a smooth muscle in the eye called ciliary muscle which controls the view of objects at varying distances. It does this by changing the shape of lens. When viewing a far object, the ciliary muscles are relaxed.
12 Aug 2014
Automatic door openers and lights – Know the function.
You may have seen automatic doors in hotels, supermarkets etc and automatic lighting system in big hotels. The door opens and closes at proper time and light switches on/off depending on the occupancy of the hall. All these use some kind of sensors to detect the presence of people. Such sensors could in general be
11 Aug 2014
Olive oil extraction – The complex process in simple terms
Olive oil is widely used in many households purely for its health benefits. In terms of cost, olive oil is still not affordable by everyone. Converting olive fruits into olive oil is a complex process. Olives are staple food in the Mediterranean regions. Soft olives are plucked from the olive trees using special tree-shaking device
10 Aug 2014
Devices used by pilots to control an airplane.
Flying is definitely more demanding than driving. In order to fly a plane, a pilot uses various devices that are inside the cockpit of the airplane. An airplane has an autopilot system that can automatically maintain proper speed and correct path. But still during take-off, climb, descent and landing, a pilot has to concentrate more