Recent content by guapig

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    Undergrad What are some alternatives for 3D physics simulation software?

    hello!PinSky,I don't know if you have fond what you need. I got some you may like:crocodile physics. It can simulate physical experiments just as you drag something into its working place. I hope u can like it. to donwload it,Try google.( i have forget where i fond it OR u can send an...
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    Graduate Understanding Velocity and Momentum: Unraveling the Uncertainty Principle

    THANK U Fra . now I have got some idea of what you said.It is really very wonderful.
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    Graduate Understanding Velocity and Momentum: Unraveling the Uncertainty Principle

    THanks Demystifier I have checked the websites you gave,and I found that (maybe) it is still an unknow question,people are working on it.Right?
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    Graduate What is the difference between photons from annihilation and normal photons?

    Sorry,my English is bad,I could not express my idea clearly.But I really THank you Sojourner01. maybe it is like this.When an electron-positron collision is occurring,we may get something as you said,but it is just possibility. but I still have something unsure.I will try to work out...
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    Graduate What is the difference between photons from annihilation and normal photons?

    :confused: when an electron meets a positron, both the electron and the positron cease to exist, and pure light comes flying out,and then the photon(light) will decay into a \mu^- \mu^+ . MY question is what is the difference between the photon that comes from the annihilation and a normal...
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    Graduate Understanding Velocity and Momentum: Unraveling the Uncertainty Principle

    :confused: (my English is bad,so please try to understand. :) As we know that bohr said we could not know anything without detecting.To talk about anything of a particle without measuring is meaningless,and we don't know what exactly happened during the process. Someone think maybe it is...
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    Graduate How would you define Frequency in terms of quantum model?

    HI kokok. I think mybe you could not image that,because you can't,and nobody can either.It just have a Frequency.What is it? it related to something else.Just think about spin.Maybe they are the same at this point.