Cosmos: Anti-Us....Anti-Matter

yeah yeah...i know you know about antimatter, after watching Angels and Demons you might know a thing or two about anti mater,
but do you really know what is anti matter?
ok its called the god particle blah blah...etc etc
but what it is exactly...why we are so very afraid of it?
well to start with it.its anti us..anti you..........anti me...........anti us

it was given attention first in 1880's . somebody like me was relaxing and he had nothing to do, and a thought was troubling him that everything has opposites...north-south, east-west, black-white, good-bad...and so on...but if looked closely..they were all made of one and the same thing....
thing
this kept intriguing him, thing means matter.....is there a thing with is opposite of matter...hence called antimatter.
so he proposed and all, until it was established that yes there might be a thing called antimatter, then in 1928 Paul Dirac when studied Schrödinger wave equation which incidentally suggested that there is possibility of antimatter being existent after all.

this was story so far...nope..there's more..
it was thought by that time that scientist were trying to make science god by making this thing called anti matter and the Catholics will loose faith, hence it was really tried to suppress, but not on large scale because they were too late for that..
if we look deeper into thing antimatter, it is the smallest part of any thing
for knowing antimatter...fist one must understand matter and atom
take a cube of cheese, cut in half, take the half, cut half again, now you have 1/4th cut that 14th into 1/2 again..do till you have such small part that you cannot possibly divide and cut it into half...that is atom
practically you cannot do that with your kitchen knife
but theoretically you will get atom, atom is the base of matter...
if we go inside atom, we have electrons, protons, and neutrons
electrons- negatively charged particles
protons-positively charged particle
neutrons-no charge
these are the basic things everything on earth has....every matter

so antimatter must be which doesn't have all these?

we don't know yet, we don't know that what it is made off, what is in it?
but what we knew is that, is is anti matter...one which destroys matter,
we know that even a speck of antimatter can destroy and create such a destruction that no human have ever witnessed it
when atom bomb was discovered, people feared it, when nuclear bomb was discovered, people feared it again, and now antimatter is on verge of being discovered, people are making it
im not against making it, but why not know the process of destroying it?
anyway..im supposed to count chickens before they hatch....so
lets look at egg.....antimatter
its reality that when a speck of antimatter comes in contact of anything(matter) it will surely release huge-vast amount of energy..which as shown in Angels and Demons was exactly what would happen.
a small speck would release so much energy which would be equal to many megatons of TNT and many time bigger than nuclear bombs

to be exact one gram of antimatter will be almost equal to 0.042960000000000005 megatons of destructive force
A megaton is a unit of energy approximately equivalent to the energy released
in the detonation of 1,000,000 tons of TNT. Used to specify the energy output, and hence
destructive power, of nuclear weapons.
and to give you an idea about the destructive power of various thing..take a look at table below then decide :)

Seymour Narrows, British Columbia 1958. 1,375 tons of chemical explosives.	1.375 kilotons
Little Boy, the atomic bomb dropped on Hiroshima, Japan on August 6, 1945.	13 kilotons.
Fat man, the atomic bomb dropped on Nagasaki, Japan on August 9, 1945.	20 kilotons.
The Tanguska / Tunguska Event (spelling is in dispute), suspected comet impact in Tanguska, Russia on June 30, 1908.	10 megatons
The Bravo test, one of the Bikini Atoll bomb tests. February 1954, was, at 15 megatons, the most powerful bomb ever detonated by the United States--far bigger than expected.	15 megatons
One pound of antimatter	19.5 megatons
Mount St. Helens May 18, 1980.	24 megatons
The 2004 Indian Ocean earthquake. December 26, 2004 at 00:58:53 UTC. An undersea earthquake with an epicentre off the west coast of Sumatra, Indonesia. The earthquake generated a tsunami that is considered one of the deadliest natural disasters in history.	26.3 megatons
Tsar Bomba, the largest nuclear weapon ever detonated 11:32 AM 30 October 1961 (Moscow Time) Such a device could be souped up to deliver a 100 megaton blast.	50 megatons
The third 1883 eruption of Krakatoa	150 megatons
Hurricane Katrina hitting the Gulf Coast. At full power, a hurricane like Katrina releases 10 megatons every 20 minutes.	300 megatons
World War III, computed as the simultaneous explosion of all known nuclear devices (about 15,000 today).	10,000 megatons
"Dinosaur Killer" Impact of 10-15 km asteroid traveling at 20 kilometers per second.	100,000,000 megatons or 10^8 megatons
A supernova, an explosion powerful enough to destroy a solar system.	one billion billion billion megatons or 10^27 megatons

so now you see how destructive is antimatter.......any doubts?

Cosmos - life of a star

last time we discussed about birth of star, now im gonna tell something about there life
unlike us, they live million and billions of year, such is there supply of fuel.
such is the big universe and such abundant is hydrogen there that its like almost non-exhaustive
now since the fuel is so much available, that...what the heck should i say about it more...
also the fuel is so much that all stars dont have same mass
if we take sun as scale, the standard, some are smaller than sun, and some are big, bigger, massive than sun
many many times that of sun
this mass alone decides the fate of stars, its already written when the stars have gain there mass that what will happen to them and how will they die....
yes, stars die too.

lets consider stars with mass less than sun
the stars who have mass less than sun, aren't much event full, they are like under average guy in your class.
they do almost nothing..
actually there mass is less so there gravitational force is also less than average, which fails to hold gas and dust together. resulting....fusion doesn't takes place so loudly and drastically as in other stars
so it glows lightly..little by little..slowly
and glows with white light, revolving slowly.....its awesome sight for anybody, even soothing, to see this star
it is called white dwarf
it remains as it is. simple, glowing thing, suspend in nothingness of space,
but you might as me, what happens when it runs out of fuel?
well then it stops glowing firstly then once fire is out, gravity comes in,
it shrinks ans shrinks, to such a point where the star becomes very unstable
war rages throughout the star
a war between gravity and fire...gravity pressurizes star to such extent that temperature again stars to rise, and then
one fine day......temperature reaches to such high point that it simply booms out.
it shatters, bursts up, blows up in pieces
leaving behind nothing but ashes and residue of what left helium (hydrogen fuses to form helium)
it isn't spectacular as what happens to massive stars

imagine a star10-20 time size of sun
such are objects up there in sky
what happen to these is bit similar to smaller stars at starting, but later, they glow like anything
the amount of energy sun gives us in one year there might be a star so massive which will give that kind of energy in one sec.
but fuel is abundant but not unlimited, someday there fuel goes out as well

then what happens is not less than what happens in some Hollywood sci-fi movies

first it gets extinguished due to lack of fuel, then stars to contract, pressure increases.
then something strange happens....
its outer shell starts expanding, which mostly contains hydrogen and it still has fire in it,
slowly and slowly the outer shell expands, engulfing the nearby planets and there satellites.
its a prefect villain any solar system might want to have. the ever expanding outer shell containing hydrogen which is burning like residual fuel. slowly and engulfing other plants.
but this was the story of outer shell, what about the inner stuff.......
well the inner stuff which is again some left hydrogen and converted helium, stars to compress, due to excessive mass and gravity it compress quickly, and temperature rises as well, which in turn ignites the helium again, and it starts to glow with white light...
and soon due to so high temperature, it runs out of fuel(helium), then what,
then helium which has been converted to lithium will burn, this will continue till..there is balance between mass and fuel
but this is not the end
bigger stars i.e these stars have there fate written to be something else...
these stars collapse and crushes itself with there own gravity, so tightly so highly packed.
imagine sun packed in your palm, such high is the density of it.
these are called Black Holes

black hole are such things, they have such high gravity that even light cannot escape.
you might question me, if light doesn't escape from black hole how the heck did one find then,
simple answer to this is that look for a spot where you cant see nothing but find something missing there..like in below pictures.....on of it shows a black hole feasting on a nearby star.

to be continued