Recent content by bogdan

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    Modulated laser effect on plants

    Well...I'm interested in the stimulation of growth of plants...especially if there are any studies about pulsed lasers at low frequency ( 5Hz-20KHz ), with wavelengths that stimulate photosynthesis ...the wavelength doesn't matter too much...I just want pulsed lasers that stimulate plants to...
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    Modulated laser effect on plants

    I'm interested in anything you have...links...sugestions...ideas about this field...
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    Proving Function Existence: Compute with L'Hopital's Rule & Find Familiar Name

    It seems I was wrong...at least I tried... And you just let me say all these foolish things ? Without putting forward any valid argument ? (I still have to check my statements...) My apologies...
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    Proving Function Existence: Compute with L'Hopital's Rule & Find Familiar Name

    Let's take x=p/q; p,q - integers; q<>0; For n=2q we have n!x=(2q-1)!*2q*p/q=(2q-1)!*2p which is an even number...so...for n large enough the product is an even number of pi's... I didn't say that was a number less then one...it's a sequence (or whatever it's called)...it's not fixed...n still...
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    Proving Function Existence: Compute with L'Hopital's Rule & Find Familiar Name

    The only problem is that you don't know how "less than one" the cosine is...it's not a "fixed" number... And...why should be there 2m ? (the cosine can't be -1 for n large enough...n!x -> even) The best thing is that you reduced it to irrational numbers... That's what I think of your...
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    Proving Function Existence: Compute with L'Hopital's Rule & Find Familiar Name

    Ok...you are both right... but i believe you are still wrong about the problem... about taking those limits separately... And what kind of medication is there for my condition ? HallsofIvy...I did not attack your person...but a statement...so...please...at least the idea I was trying to...
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    Proving Function Existence: Compute with L'Hopital's Rule & Find Familiar Name

    That argument will never be an integer multiple of pi...maybe it will come close enough to it...so that sin->0...anyway...I don't think the limits should be taken separately...not first lim m and then lim n...but at the same time... I don't know if this helps anyone so I'll stop here...:)...
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    Proving Function Existence: Compute with L'Hopital's Rule & Find Familiar Name

    What tends to infinity ? I know sin*sin is between 0 and 1...but for the argument n!*pi*x i hope it (sin*sin) tends to 0... something like n!*pi*x tends to an even multiple of pi for n great enough...so that sin*sin -> 0...that's maybe why it's 2*m...not only m...
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    Proving Function Existence: Compute with L'Hopital's Rule & Find Familiar Name

    Here's an idea... cos(n!*pi*x)^(2*m)=[cos(n!*pi*x)^2]^m=[1-sin(n!*pi*x)^2]^m... if only one could prove that sin(n!*pi*x)^2 -> 0 as n -> infinity...it would be quite simple from here...it's "classical" (1-1/u)^u where u->infinity... ? did help ?
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    Proving Function Existence: Compute with L'Hopital's Rule & Find Familiar Name

    Sorry to disturb...but nothing happens to a number between -1 and 1 raised to higher and higher powers...think of e=(1-1/n)^n...(sorry i can't help anymore...)
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    What is the relationship between dark energy and the inertia of baryonic matter?

    Sorry for the interruption...but F=ma is valid only in classical physics...F=dp/dt is correct in general...I think...
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    Einstein's Intelligence Quiz ?

    This is the answer... http://www.astrohoroscopes.com/puzzles/logic/einsteinquizanswer.html
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    Maths Quiz: Solve the Surd Puzzle

    Okay...I'll think about it...
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    Maths Quiz: Solve the Surd Puzzle

    Aaaa...and for that probability problem...the first on the 3rd page...with x and y pennies... P(x)=x/(x+y)...P(x)->the probability that the player with x pennies wins... P(y)=y/(x+y)...P(y)->... Proof ? Somesort of recursivity...too long to be written here...
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    Maths Quiz: Solve the Surd Puzzle

    Are you sure that c is incorrect ? Remember:the baloon is attached to the floor...not to a weight that floats in the air and is attached to the floor by a string...soooo...why should c be incorrect ? If it was attached to a weight than it should move forward... And why do you think that the...
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