Page 112 - Signs Of The Last Day

Cloud Seeding

As an-Nawwas ibn Sam'an reported, the Prophet (saas)
said: He would then give command to the sky and there
would be rainfall upon the earth ...
(Sahih Muslim, Book 41, Number 7015)

It is reported in the above hadith that in the End Times there
will be means of causing rainfall when so desired. These methods
are actually employed today. The technique known as cloud seed-
ing is applied as follows:

Seeding of clouds requires that they contain supercooled liq-
uid water—that is, liquid water colder than zero degrees
Celsius. Introduction of a substance such as silver iodide,

which has a crystalline structure similar to that of ice, will in-
duce freezing (heterogeneous nucleation). Dry ice [frozen
carbon dioxide] or propane expansion cools the air to such an
extent that ice crystals can nucleate spontaneously from the

vapor phase. ... In mid-latitude clouds, the usual seeding
strategy has been predicated upon the fact that the equilibri-
um vapor pressure is lower over water than over ice. When

ice particles form in supercooled clouds, this fact allows the
ice particles to grow at the expense of liquid droplets. If there
is sufficient growth, the particles become heavy enough to
fall as snow (or, if melting occurs, rain) from clouds that oth-

erwise would produce no precipitation. This process is
known as "static" seeding. Seeding of warm-season or tropi-
cal cumuliform (convective) clouds seeks to exploit the latent

heat released by freezing. This strategy of "dynamic" seeding

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