Keplar Mission - Scanning Earth like planets

The Kepler spacecraft is an American space observatory, the space-based portion of NASA's Kepler Mission to discover Earth like planets orbiting other stars. The spacecraft, named in honor of the 17th-century German astronomer Johannes kepler, was launched in March 2009  with a planned mission lifetime of at least 3.5 years.

Its main target is to scan our Milky way galaxy. Its main objective is to find the planets in the habitatal zone just like Earth.

sun foil

An engineer from the university of Missouri announces his ambition to create a flexible solar sheet  of small nano-antennas, capable of capturing solar energy with 90% efficiency; current solar panel technology captures around 20%

Dont throw your mobile phone ?

Hi friends ,
Today we use various cell phones and replace with the new ones. But you know each cell phone is made with 40 precious metals.

When you throw a mobile phone , you are throwing 40 precious metals in to the Garbage. As Mobile revolution increased ,lot of mobile phones getting scrapped due to obsolent technology. If you properly dispose and recycle mobile phones we can recover precious metals from it for example

So dont throw the mobile phones and dispose it properly.

Save the Environment , save the Earth

China's Solar Industry - Technology Review

China's Solar Industry - Technology Review

One of the world's smallest electronic circuits created

One of the world's smallest electronic circuits created

Do u want to know what is LED TV ?

Today we are seeing very slim monitors , phones and many other electronic gadgets. All these are the result of a revolution technology LCD (Liquid crystal display).

All LCD need uniform white light to illuminate the screen. They are two technologies available today to lit this.
1. Edge lit display
2. Direct lit display

In the Direct lit display an array of LED is arranged back of the screen and a screen is placed in front of it . it will creates a uniform light.

In the Edge lit , LED s are arranged at the end of the diffuser plates. Edge lit displays create more slim designs.

Main components of LED TV are

First LED source ---> Light guide plate -->  diffuser --> Brightenss enhancement films --> Prism films --> LCD panel.

Back lit sources take nearly 90% of electricity which TV consumes and 40% of all its material cost.


In an LED TV these back light sources are LEDs.  In ordinary LCD TVs  sources of light are CCFL (cold cathode flouroscent lamps)

Secret of bed of nails

Why Ballon does not blast when pressed on bed of nails ?


When a ballon is brought near the sharp edge of nail , it will break. But when we press a balloon on the bed of nails it will not break.

The reason is based on the simple principle
Pressure  = Force/Area

In the first case , area of the tip of nail is small and all the pressure acts on that tip resulting in breaking of balloon. In the second case we have a bed of nails , Here area increases and pressure per unit area on the balloon decreases resulting in non breaking of balloon.

This phenomenon is observed in many examples in our daily lifes

 
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