pulkit

arcturus, deneb, sirius B, antares ---- love most of them

Microprocessors have millions of transistors that in essence are the realisation of logic gates....... In practice what logic gates do you make on a a microprocessor ? Do you make the 3 basic ones AND,OR and NOT ? Or do you make everything using NAND ? or using NOR ? Secondly, can a 2 bit XOR gate be realised using a single transistor ?

Lunch with Schrodinger..............cat food

I am unfamiliar with catalan numbers....what are they ?

Ah ! I know about the last part that you mention : worst case analysis : coz I have to do it all the time. Never acctualy used O notation in maths, I was merely referring to how you analyse algorithms in computer science using it...........its a very nice concept though, can be used to analyse those probablistic algos.

Can you provide the correct answer ?

Frames of refrences are concepts of classical mechanics and applied to particles or rigid bodies whose location can be exactly determined. In this case it is impossible to do so because we have a matter wave not a particle.

mermaids (I am just saying more likely coz likelihood of either is xtremely low) more likely b'coz the oceans are so huge, there are surely sections we haven't explored yet.

Are you referring to vampires as the classical blood sucking monster ? Coz such people I'd only call "deranged".

Oops ! Forgot my history there, all apologies

Ah ! Now I remember, X-Rays for one fizz out (talking about intansity here) in an exponential decay when they move through a metal. I do not remember the name of the eponential decay factor, but it is considered shielded once their intensity drops to 1/e times the original intensity, which takes a constant amount of thickness each time it happens.

Small sub-question : When you want to block out gamma radiation you can make use of thick lead blocks. Is it just the thickness of the metal or some property of lead that is being utilized as well?

God damn it ! if u r inside a conducting shell u can't get a shock !! Don't you know anything about physics ??????!!!! Current needs a potential difference which you can't have in a conductor because it is equipotential. In short, YOU CANNOT GET AN ELECTRIC SHOCK inside a faraday cage !! Completing a circuit is not enuf, you must have a driving potential.

There is nothing mystical about it. Take a hollow conductor and you can not have an electric field inside. Look at the first of Maxwell's equations : [MATH]\bigtriangledown .\overrightarrow{E}=0[/MATH]

Whats that suposed to mean ? The only place you ever encountered the big O notation is when you study the assymptotic time complexity and not "efficiency". And also, no. of iterations would never approach zero.

Though I strongly think of the nuking of Hiroshima and Nagasaki to be no less than an act of terorr. I can't help but imgaine how else the second world war could have been ended. The fact is that untill a blow as telling as an atomic bomb or the capturing of a capital city had acctualy taken place, the world would have continued to wage war. Plus, it was an all out war at that time and you can justify such acts in war. What you clearly can't justify is what USA did in Iraq and Afghanistan because it wasn't a war. It was a slaughter.

2nd Law of thermodynamics says that it is impossible to convert heat into work with 100% efficiency (A fancy way of saying that the total entropy of the universe is increasing). If that is impossible so is a perpetual motion machine.

A faraday cage is a closed metal surface which does not allow any electric fields inside it. It is IMPOSSIBLE for you to get a shock sitting inside it.

Not much skill involved in absolute vale and mod.........of course it is taught in school (primary school !!!)

If it is skin tight you are not fine merely because, you may not get an electric shock but you'll be roasted by the heat. When lightening will strike, there mite be transient currents developed at the skin of the metal instantaneously, which would heat up a thin suit pretty quickly. Remember that the electrical energy certainly has to dissipate some how and there is no other way for it to happen in this case other than heat.

What doesn't work for n=4 ? Atleast if I put in [MATH]fib(2n-1)=P(n)[/MATH] and [MATH]n=4[/MATH] then I get :- [MATH]fib(2*4-1)=3*fib(2*3-1)-fib(2*2-1)[/MATH] [MATH]fib(7)=fib(5)*3 - fib(3)[/MATH] [MATH] fib(7)=13 \ldots fib(5)=5 \ldots fib(3)=2 [/MATH] So it holds !

If you touch a cage at a single point obviously there is no circuit meaning no shock. If you touch it at multiple points, still there will be no shock because the potential across your body will be 0. The reason being that the faraday cage is a close metallic surface and is hece equipotential in nature. But, the "metal suit" you intend to use as a faraday cage should be a completely closed metallic surface with no windows etc.

An algorithm's time complexity can nevr converge to 0. Orders like O(1/n) and O(1/n^2) are impossible. It would mean a greater problem size needs lesser time. Orders do indeed diverge to infinity and what you do is figure whcih one does how slowly, that'll be the better algorithm.

Hi, I am pulkit. I acctualy seemed to have missed this thread the first 15 days or so that I've been part of this forum. I am currently doing "computer science and engineering" and am in my 2nd year at that, my true love however are the basic sciences which I no longer have a chance to study (sigh !). I did a lot of science (and mathematics which I still have to do a lot) in my high school and 1st year, and am still left completely intrigued by it. I hope to keep expanding my knowledge of science as much as time would permit me to.

If you want to mix soap or play around with surface tension, you should have some sort of method to measure the exact surface tension. I used to do it by counting drops, I don't know if there is an instrument that measures surface tension. Another factor that could be taken into account is the surface on which the drop falls and its coefficient of restitution (e).