Dilkash Intakhab

              What is an Earthquake   An Earthquake is the shaking of the surface of the Earth resulting from a suddenly realise energy of the Earth lithosphere that creates seismic waves. We know this is most dangerous thing which is revealed to us by nature. In previous years we hear about earthquake in different places that caused a lot of damage. In primary effects of earthquake are ground shaking, ground rapture, landslides, Tsunami and liquefaction. Fire are probably the single most important secondary effect of earthquakes. So there are some ideas to keeping youself safe from earthquake.                              Purpose  How we protect ourself from earthquake 1. Find a clear spot away from buildings, trees, streetlights and power lines.  2. Drop to the ground and stay there until the shaking stops.  3. If you are in a vehicle, stop. Pull over to a ...

Invisible ink is the helpful ink. If you want to write a letter and you want to make your letter private use invisible ink. In previous year so many people use this ink as a security purpose. Something they want to hide. If you see previous history you found the so many information about invisible ink. James jay invent indivisible ink he wanted an ink that could not be revealed  using heat, making it harder to expose. James jay, a doctor and brother of American congressman James jay, create an invisible link system that used two chemical.

I nvisible ink....a lso security link....writing for secret letter.... invented by James jay....first used by the ancient Greeks and Romans....read by heat....it's helpful