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How come the universe is made of matter and not antimatter?
BlackMarket
That is not currently known. There is a slight assymetry between matter and antimatter, but so far, it seems that this assymetry is not enough to explain why there is only matter, and hardly any antimatter, in the Universe. Without such an assymetry, there wouldn't be either matter or antimatter in the Universe - just radiation. For more information about what is known, and what isn't, check the Wikipedia article on "Baryon asymmetry".
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoIf it were made of antimatter, the antimatter would be called matter, and matter would be called antimatter.
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If an astronaut landed on a planet made of antimatter there would be an explosion as both the astronaut and?
The amount of planet matter equal to that of the astronaut would annihilate.
What's the dark matter in the universe?
Dark matter is matter of an unknown type. It is known to exist, due to its gravitational influence, but it is not known what it is made of. There is at least 5 times as much dark matter than "normal" matter.
How do you produce antimatter?
Basically, the process involves creating a concentrated release of energy from the collision of atomic particles with atomic nuclei, such that "pair production" occurs: 1 particle of matter and 1 particle of antimatter. It is possible to contain antimatter (positrons, anti-protons) within a magnetic field. Some of the links below may be helfpul. As you'll note, it takes some pretty sophisticated equipment, and not a lot of it has been made.
What is most of the universe made of?
About 5% of our Universe consists of baryonic matter; ie, stuff we fully understand. Our Universe also contains about four times more mass in some form we DON'T understand, and that's why we call it "dark matter." And about 75% of the energy of the Universe consists of something that is causing the rate of expansion of our Universe to speed up. It can't be something with mass, because mass would cause the rate of expansion to slow down. So it has be some form of energy we just don't understand -- so, for now, we simply call it "dark energy." These two entities have nothing whatsoever in common other than the first word in the description we humans have given to them.
How much money did Across the Universe gross worldwide?
Across the Universe grossed $29,367,143 worldwide.
Why do you live in a universe that is made of matter rather than antimatter?
This is not currently known. There does exist some asymmetry between matter and antimatter - meaning that they are not exact opposites in all aspects - but this asymmetry is not enough to explain why matter exists.
What is a thing that's not made up of matter?
antimatter and dark matter
Can elements be made out of antimatter?
Yes. Antimatter is only a point of view concept : we can imagine any object made of what we call antimatter. According to his point of view, we would be made of antimatter. Moreover, a number of large areas of the universe, that doesn't have any contact with each other, may be made of antimatter. we wouldn't have any mean to know from where we are.
Is there anything not made out of matter?
Yes, antimatter - as was recently produced at CERN.
Does All objects are made up of molecules?
no, everything that we can interact with is matter. antimatter completely demolishes itself if it comes into contact with its matter counterpart. the matter and antimatter together makes up the M (mass) of the E=MC squared equation. dark matter, which just passes right through matter and antimatter, which we call WIMPs, (Weakly Interacting Mass Particles or something. i forgot exactly)
If something is made up of an atoms it must be?
A molecule. But all the compounds ans elements in the universe are made from atoms. (and possible from antiatoms in the undiscovered now antimatter).
What is the oppostite of anti-methane?
Since anti-methane is made of antimatter, its opposite would be methane, the compound made of normal matter.
Would the world be different if it was made of antimatter?
Yes, it would be different. Antimatter is in a way the opposite of matter, but it is not the exact opposite. There are slight differences - and that is somehow the reason why we have significant amounts of matter, and not of antimatter, in the first place - though the exact details are not well-known yet (you can find out more details in the Wikipedia article on "Baryogenesis").
If an astronaut landed on a planet made of antimatter there would be an explosion and what?
The matter of the astronaut causes the antimatter to anhilate each other, creating energy close to the energy produced by the equation E=mc2.
What is the existence of antimatter?
Previous answer "The existence of antimatter is just a lower less advanced form of dark matter" this is completely wrong, Antimatter is quite the opposite of 'normal' matter. It is made up of positrons that orbit around the nucleus in shells and have a positive charge. Anti-proton (a proton with a negative charge) and neutrons stay the same as they have no charge and are in fact neutral. dark matter is simply matter that doesn't give out light
What is the law of matter and antimatter?
Sir Issac Newton had three laws of motion, which all concerned matter. The first was the law of inertia: an object is either still or moving at a constant speed, and will stay either moving or at the same speed unless acted on by an external force (such as friction - this is why you cannot slide forever on concrete). The second was the law of force: F=m*a (where F=force, M=mass, and a=acceleration). The third was the law of conservation of energy: for every action, there is an equal and opposite reaction (this is why, if you push off of the floor with your feet, you will go up - commonly known as jumping).
What is the power output of the anti-matter reactor?
This question presupposes the existence of an antimatter reactor. As far as I know, no such reactor exists, or has even been designed. Antimatter reacts with matter to produce energy with virtually no matter remaining. Such a reaction is thousands of times more powerful as nuclear reactions we have used on this planet. But antimatter is difficult to make and nearly impossible to handle. As soon as it touches anything, it is gone. There is a lovely quote from a researcher who has made antimatter often. He said that if all the antimatter made at CERN were put together and reacted with matter, the resulting energy would power a light bulb for a few seconds. This even though it is the most powerful reaction we know of. There just is not enough of it to react usefully.
