You are currently browsing the tag archive for the ‘anti particle’ tag.
Apologies for being so inactive. Work really kills a lot of your motivation to do other things.
I’ve only felt like doing short posts of late and as some of you may have noticed, the posts I tend to do here are long. Anyway, I still engage in scientific discussion when the chance arises and typed this one out recently – thought I would share it. I typed this on my phone by the way, so forgive any grammar/syntax/punctuation errors.
Damn this is getting frustrating. Time to drop some knowledge bombs.
Antimatter is NOT dark matter. Dark matter is matter that we have not discovered and have literally no idea about – hence dark. We know it exists because it affects light and other properties in the universe in a way that currently known matter cannot describe (i.e more light curvature than one would expect given how much known matter there is – hence that means there’s more “stuff” out there than we know). Dark energy is used to describe the accelerated expansion of the universe. Remember, what’s dark mean? It meabs we don’t know. So we expect expansion to be slowing down but it’s actually increasing so there must be some energy we don’t know about. Those of you that actually UNDERSTAND Einstein’s equation E=mc^2 will know energy and mass are the interchangeable, so dark energy and dark matter are essentially the same thing.
Now ANTImatter is not dark. What does that mean? We KNOW about it. What is matter made up of? Particles. So antimatter is a broad term for a whole bunch of particles called antiparticles. Every particle theoretically has an antiparticle with the same mass but opposite charge, therefore when they come into contact with each other they annihilate each other and cause decay (into other forms of energy/particles). Carl Anderson discovered the POSITRON. It is the antiparticle of the ELECTRON. Both are known to exist and scientists can create them at will. No, it’s not the end of the world. Positrons ONLY annihilate electrons. All elementary particles have a known antiparticle.
Further reading for you if you’re interested is CP Violation which explains why there’s more matter than antimatter in the universe.
Boom. Science bitches.
On a side note, I think I will begin every scientific explanation I give with “Time to drop some knowledge bombs” and end it with “Boom. Science bitches.” from now on. Sound good?