Recent content by NERV

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    Is Action&Reaction Strictly Synchronous

    I have got a problem: It's well known that two electric charges have either attractive or repulsive forces on each other. And Einstein told us that there is no message that can travel at a speed beyond c. Besides I was told that the actions and reactions between the two charges are based on...
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    How to focus a beam of charged particles?

    I've purchased two books on electromagnetic field designing.Thanks for your information.
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    How to focus a beam of charged particles?

    Thanks for your reply.Would you mind if you describe it in details?
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    How to focus a beam of charged particles?

    I was discovering a way to focus a number of charged particles which has been accelerated by Van de Graff generator into a beam.I do tried to find ideas in uniform magnetic field,but it seems I can only focus the particles onto a point rather than a beam.So here I was asking whether there had...
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    Shall we fly in this way?

    As it is known to all,the atmospheric electric field does exists.In fact,near the ground its strength is about 100N/m.That's enough for my design. Let's get some activated carbon powder.I think we can regard them as smooth,conductive balls with density(ρ)=2.7g/cm3,r=1×10-5m。If we want a can...
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    'Plastic oil' could improve fuel economy in cars

    I believe it because plastic,especially PE molecules can just be regarded as long-chained carbon atoms,while petrol molecules are some shorter ones.So with cracking technology we can get petrol from plastic easily.The profits are high,because the world's oil price keeps increasing and the...
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    Can Neutrons Be Redirected Through Macroscopic Means?

    I know there is no way to deflect a neutron by electromagnetic force since it is a uncharged particle.Can anyone come up with any other ways?Thanks very much.
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    How to turn a proton into neutron by e+p->n?

    Thanks a lot.Your quote was what I was answering #2,not for you ^-^.And you seems to have the same idea(to beam hydrogen targets with electrons).
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    Calculating Force: Help from Applemush

    I'll get a word in edgeways: Newton had just told us the force equals the change rate of the momentum,which writes: F∝mv/t,Or F=kmv/t. In Metric, k =1.However,you can make k≠1 in other measurement metrics.That's where the floor host's mistake is,I thought.
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    A question on Newton's 3rd Law

    At this very moment(t=0),the mass(M-m) will recoil at the speed v0=mu/(M-m).Then from now on,the remain mass can be regarded as a spring oscillator,whose initial speed is v0. If you want to know the motion equation of the remain mass(Let's call it M').You need the knowledge of trigonometric...
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    How to turn a proton into neutron by e+p->n?

    I know there is a way of electron capture.But,how much energy is it needed?In other words,WHAT CONDITION is the capture reaction required?
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    How to turn a proton into neutron by e+p->n?

    how to turn a proton into neutron by e+p-->n? Just as the topic said,is it possible to turn a proton into a neutron by forcing a electron into the proton?If it's possible,what condition is it required?
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