SCIENCE EASY ; ; No. 181
Author: Maria Cristina Chaler.
Series Juguemos to why?
Why lightning and thunder?
All we will have lived a stormy night, thunder accompanied by lightning is shocking and frightening many in this situation, but some restless spirits watching the sky fall in curiosity first " a bright glow and then a huge stampede called thunder?
We may ask: why thunder and lightning?
The answer to this question can be formulated with legends, myths and scientific truths like this.
The electric field is combined in a way which is presented in different ways before our eyes: solid and strong, liquid or gaseous, invisible quicksand, holding life or be abiotic, but everything is just pure electricity that beautifully together.
Atoms make up molecules, in turn, are positive nuclei neutralized by the negatively charged electrons are around and are differentiated only by the amount of electric charge they possess. The 92 elements that make up everything around us are combined thereby generating material diversity of the planet.
If rub the area, perhaps we can start some electrons and affect their neutrality becomes a positive, the opposite may also happen, we transmit and negatively charged electrons. Because of this in the stormy days rubs wind clouds and they are charged large amounts of electricity from one of the two signs, these bodies of water vapor laden attract oppositely charged land by the phenomenon called induction, which allows the download creating what we know as lightning, that may make sense from the cloud to the ground or reverse and accompanied by a loud noise called thunder.
Why the difference in time to see?
The speed of light is 300000km in 1 second (300000km / s) while the sound is 343 meters per second (343m / s), this difference in speed of course we see the light first and last some time we perceive the sound of thunder that such downloading occurs. Remember the note
easy Science No. 14 in which we explained that ...
" rubbing in these phenomena of matter, electric charges are distributed evenly over the surface of bodies, but bodies have pointed accumulate in them and there is what we call the power of the tips : Density (number of charge / area) in them is so great that the charges jump so that the air molecules that surround them are electrically charged with the same sign and repel each other, generating a movement that receives electric wind name.
An application of this power, was the lightning rod, invented by Benjamin Franklin in 1752. It consists of a metal rod with one or more points. Is placed on the roofs of tall buildings attached to a lead wire which in turn is connected to a metal plate is buried at some depth.
easy Science No. 14 in which we explained that ...
" rubbing in these phenomena of matter, electric charges are distributed evenly over the surface of bodies, but bodies have pointed accumulate in them and there is what we call the power of the tips : Density (number of charge / area) in them is so great that the charges jump so that the air molecules that surround them are electrically charged with the same sign and repel each other, generating a movement that receives electric wind name.
An application of this power, was the lightning rod, invented by Benjamin Franklin in 1752. It consists of a metal rod with one or more points. Is placed on the roofs of tall buildings attached to a lead wire which in turn is connected to a metal plate is buried at some depth.
When a tag approaches the arrester, it induces charges opposite direction to generate an electric wind ions (charged air particles) that achieve neutralization (removes the charges) and prevents the formation of lightning. If the wind reaches the cloud or the accumulation of charges in it were too great to be neutralized, it will generate a lightning arrester discharge through without causing damage. "
Let think like scientists and watching everything around us with great curiosity.
Man is just a dot on the vast Universal but has an important purpose of being 
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