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    Photon Exchange in Atoms

    Sorry if this post seems short, I had to write it in a hurry. I'm currently reading Leonard Susskind's 'The Cosmic Landscape'. In it, he describes how electrons and protons both emit photons, which is what gives them their charge. The explanation is really awesome, but I have one thing I...
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    E=MC^2 question about the M

    E=MC^2 question about the "M" So, energy equals mass times the speed of light squared. Energy can determine speed, because the energy is transferred into the 3 spacial dimensions. My question is with E=MC^2 itself, Energy of light would equal zero mass times the speed of light squared...
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    Light from the big Bang/Inflation

    Okay, so here's my questions: 1. Why can't we see the light from the big bang? If it happened 14 billion years ago, shouldn't we be able to see the light from the big bang by now? Or is the earth and everything else moving away from the spot of the big bang faster than or at the speed of...
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    My Antimatter Rocket

    To put it short, I'm designing an antimatter rocket that a guy at NASA want's to see. I'm working hard but had a few questions for you guys: 1. What's the easiest way to get Positrons? 2. Any ideas on either storing it for a month or having a machine keep feeding the engine positrons like a...
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    Gravitation and Space Time warps

    Thanks for the replies, they're all great. So, I have Q #1 explained, but I still think I could use a bit more clarification on my Q #2
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    Gravitation and Space Time warps

    Okay, so here's my questions: 1. In the theory of the expanding universe, the universe, well, expands. But space it's self would have to expand faster than light could travel or at the same speed for that to work. Umm, Hello? The space would travel faster than light. Would it not? If so...
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    Elenin, the new scaremongering is approaching

    Yep. I heard about this. "Brown Dwarf" coming to shake up and flip us and shoot radioactive debris. It's all PLAUSIBLE, but I think the theory of us being beat up by a rouge star is stupid. me, myself, don't believe it'll harm us. But, hey, let the conspiracy theorist who think that we'll all...
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    Could there be Anti-energy?

    (a) Ok (b) I was talking about the quantum scale anyway. (c) I will. I guess I have my answer, guys.
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    Could there be Anti-energy?

    Well, what I was asking was if somehow, there could be some force that is the opposite of the forces that energy implies, a force not made or particles, (Like energy) that would be explained in the opposite way that energy is. So, the complete opposite of energy, something with force that...
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    Could there be Anti-energy?

    Matter. Anti-Matter Energy. Anti-Energy
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    Could there be Anti-energy?

    First of all, can someone explain what energy exactly is? Then, explain why or why not Anti-energy could exist? If it could, so many new possibilities could open up..I could come up with so many ideas about it...Eh, so, those are my questions, hope you can answer -Lazer
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    Two quick questions

    So, I come to you today with 2 more of my amazing 11 year old questions about physics. I'll make it short here: 1. I have an awesome Eco-friendly power source idea that I'm not gonna post here 'cause it's too original. First of all, my basic knowledge of what electricity IS, is electrons...
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    Extra universes

    Nah... I understand many complicated things like this for my age, I ask questions related to things that I understand and in my range of understanding. My basic question is if the alternate history theory states ACTUAL other histories exist or not, (Where things really exist)
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    Extra universes

    I don't...know? (Not sure what Varon means so....) ((I'm only 11, people))
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    Extra universes

    (Bump)
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    Extra universes

    Wow, I just became flooded in thought... Anyway, I recently read a Stephen Hawking book called the Grand Design, and I learned a lot! The book includes talk of multiple universes, and the buckyball experiment. I understood well but I have a question: I understand the theory that...
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    Island of stability?

    Thanks, these are great answers, but again, Element 126 supposedly if it had 126 of each nucleon particle, (protons and neutrons) would mean it would be stable, but why is element 126 supposed to be super special, because it would be heavy+stable or what?
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    Island of stability?

    Okay, so even though I really don't need to, I do a LOT of research on astronomy, physics, math, etc. I was doing research on the extended periodic table, and super heavy unstable elements. I was quickly turned to the Island of Stability, and I get the theory but have a few questions. 1...
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    News Osama Bin Laden killed by US in Pakistan

    Continuing from my other post: 1)Again, It took 10 years to kill this dude 2)This is only gonna wound Al Queda temporarily, then, like a wound, Al Queda will heal and strike back at us harder. This war like cycle is stupid, We attack, they attack harder, we attack harder, they attack harder...
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    News Osama Bin Laden killed by US in Pakistan

    I'm happy for this. I was only 1 year old in 9/11 but I did research, and I nearly cried after watching the stupid idiotic terrorists smash into a building like that. What makes it worse is videos of people saying that it was a fluke and that it was a "Hologram" and stuff. But seeing even the...
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    Books like A Brief History Of Time and The Black Hole War

    I love those books! Hmmm...here's a good book: The Grand Design by Stephen Hawking.
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    FLUKEY OR SPOOKY? Incredible real-life coincidences or are they?

    Weird. That is all I have to say.
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    My Teacher! [Non-essential]

    Hmmm...I don't think you should worry too much. This is a bit different from your situation, but my 5th grade teacher doesn't understand most math or physics I know...I don't think you should worry.
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    Electron flow direction: Convention VS what's exactly happening

    Your post makes no sense to the reference of it's self
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    Medical Tiny images

    Cool! I'm not sure about the first two, but the third is EXACTLY what I see! Well, I think that mystery is solved for me. Thanks!
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    Gravity = warping of spacetime (doesn't make sense)

    The reasons I don't think Gravitons make any sense also is why I think gravity is slower that light, not at the same exact rate. If light is constant..well great, but gravitons would have to travel at the speed of light, but gravity eventually stops effecting stuff. So with that logic, gravitons...
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    Gravity = warping of spacetime (doesn't make sense)

    OMG! This is EXACTLY what I was thinking sense I began looking at theories of gravity, and looking at the problems with them. Gravitons don't make sense either. Space warping make only a bit more sense...any other theories of gravity?
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    Medical Tiny images

    I've noticed this a lot, but I never though it was weird, so I'm deciding to ask PF. Every once and a while, I'll just be sitting around, bored or contemplating the universe, when I'll stare at a blank object and start seeing little tiny circles with dots in the middle. Kinda like a molecule...
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    Electron flow direction: Convention VS what's exactly happening

    I hate this too...It gets really confusing when I look at schematics, sometimes it looks like + to - sometimes it looks like - to + and sometimes I don't know WHAT the heck it's saying to me...
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    Where are all the nerds?

    lol True....again though, I find it annoying I have to explain jokes I tell, even to the smartest people I know.....anyone know how to use a Nabla? I'm bored and feel like learning...
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