HOW DO COUNTRIES LIKE UAE, CHINA CREATE ARTIFICIAL RAIN?

HOW DO COUNTRIES LIKE UAE, CHINA CREATE ARTIFICIAL RAIN?

Heat from the sun warms the water,

turns it into water vapours, and the

process is called evaporation. The

vapours of water rises up, their

temperature cools down. When the

water vapour cools they change back

into tiny water droplets. And the process

is called condensation.

The tiny water droplets make clouds.

The tiny droplets of water in cloud don't

bump into each other because they are

in purest form of water. As clouds move

some dust particles get in and the tiny

water droplets stick to dust particles

and form bigger droplets and when the

droplets get heavier they fall on Earth

as rain.

Now what is cloud seeding?

It is a technique developed in 1946

by Vincent Schaefer. In this technique

silver iodide is sprayed on clouds

and silver iodide works same as dust

particles and stick small water droplets

together and from bigger droplets hence

this cause rain.

In 2008 China got chance to host summer Olympics 2008. China spent massive amount for this event. They build new stadiums, renovated Beijing airport and

improve public transport.

There were just two days left for opening

ceremony of Olympics, everything was

ready.Teams from every country of the

world were there, but Chinese government

got very shocking news, that Beijing will

have heavy rainfall on the day of Olympic

opening ceremony. The real tension on

Chinese government was that the stadium

was open air stadium.

Chinese government found an interesting

way to stop the rain from falling in Beijing.

On the day of event when clouds were

on their way to Beijing, China used cloud

seeding method, before clouds reach

Beijing. It started raining out of Beijing

and the event happened without any

problem.