Bharat Rakshak

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Noobie question: what if the first strike takes out the ports and the docks? Noobie counter question - the threat of enemy attack is there when one is in the loo or sleeping. Does one take sword and armour to bed and loo? No, one posts sentries at the gate & walls and wear the armour & swor...

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Noobie question: what if the first strike takes out the ports and the docks?

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I do hope that the future britshits pay the price of their excesses on humanity with interest.

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Yep, what would the world do without America. What would those Indians do without great-white Americans.

They would do much better than with America present .... in my very well considered opinion

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They can afford not to care. For now.

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As a first step, rehabilitate Hindu minority in Kashmir by dissolving 370 and ban Church meddling in politics in the north east to protect minority Hindus there.

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I hope its not a big scam. Smells like it unfortunately.

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^^^ It explains stuff so lucidly

. I have not struggled with one equation in that stuff so far. Very good indeed (especially for a layman nobody like me).

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No one is talking of bullets here. HOW does the photon accelerate is a question for which I have no answer. This magic of "Now It Is a Wave, Now It is a Particle", is beyond my poor brain. I honestly do not understand how an e-mag wave exists in a vacuum, unless the wave has some mass ass...

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UB garu, lets switch off the momentum conservation for a while, and lets say there is no momentum imparted by this scattering process. Sun would collapse gravitationally. { EDIT: that was straigth from djinn pijjicks school, for the sun, it would mean it will become more and more compact and burn ou...

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Last VBIED first: No, the Comment 53 says no change in MOMENTUM. Momentum is a vector. Two vectors cannot be the same unless both magnitude and direction are same. Not sure which comment you're talking about, unless it is the one about light propagating through, say glass. The phenomenon there is v...

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Hey now! I am a Modi Bhakt and an Engineer. Please dont turn Stalin on us.

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Next VBIED: "how much of the energy is gamma and how much is light, how much is xrays ?" No clue. Discussion was about Gamma photons. I dont even know frequency of X-ray compared to gamma ray. He he he. Its already measured as black body radiation. Here is a pic: http://qdl.scs-inc.us/2nd...

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Ah, Lokeshji, Gamma rays is naat what is getting from inside to outside. Naat so. Get outside the atmosphere, and you get zapped with X-rays and Gamma rays. Sit inside an aluminum box and the X-rays hitting aluminum send out "spalling" (alpha particles?) which kills u. Let's not shift the...

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UBji, Quantum teleportations works differently. Let me explain. You need an sample and a "quantum state measurement device". The device goes through EACH molecule of the sample and creates a list of quantum states that each molecule is in. Then you need to send that information using class...

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Do the gamma rays go through the core? Now now, as AmberG might say, question answered hajaar posts ago. The whole funfest about the Drunken Random Walk was about Gamma Rays trying to get from core to outside. Apparently the fusion is at the core, then there is fission, then just hot gases and chem...

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Ismaaal correction on your IED: They dont "react" instantly :), they dont react at all. You cannot transmit information using a wave-function collapse (which you would have to do to measure the quantum number). All it says is once the wave function collapses you know the quantum numbers of...

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Do the gamma rays go through the core?

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LOL. Hypothetical UB garu Hypothetical. Also, in my mechanics problem all of it is in space and also if there are millions of balls hitting each wheel , it will start oscillating around in its mean position (i.e get hot). Comment #53 was explaining transmission of light waves through a transparent m...

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Here is my attempt to reason (btw, I never claimed it was the SAME photon, I only said energy.... it take about that many years for energy to come out from the core). Light getting scattered is not the same as light passing through a transparent material (IMHO). Let me give you a mechanics problem: ...

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I am stepping waaaaaay out of the woods here, but IMVVVVHO there is a problem with your florida turnpike analogy. Momentum is a quantum mechanical quantity defined by an operator that works on the wave function. The moment a photon interacts with a glass/mirror, the wave function of both of these th...

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UB garu, Radiation pressure (what you are trying to say) is already a known agent and is included in the calculation of stellar dynamics. Infact a supernova collapse happens when the radiation pressure cannot balance the gravitational pull. http://scienceworld.wolfram.com/physics/RadiationPressure.h...

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LokeshC's maxim (well.. not really mine, but it has worked wonders for ISRO and BARC) : If you deny us tech and empower our enemies, you are forcing us to develop the same tech you deny us, thereby making yourself irrelevant. Unkil wont be irrelevant in the near future. But, they sure are moving in ...

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It was theoretically known that it was possible to "surf" on a gravitational perturbation. But to create and hold that configuration needs some exotic unobtanium kind of as yet unknown material and energy.

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^ That's the reality we have to face. There are no 'friends' any longer in international relationship after the end of the Cold War and the start of the Economic War. All relationships are becoming transactional. The 'Blue Ice' type of very deep-rooted relationships would survive but not much else....

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Around in circles we go.

Question: A nuclear core of a reactor melts down, how long before it completely cools back to solid metal and rocks.

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Vacuum transmits heat.

. Time to move to GDF phijjiks dhaaga???

Heat transfer occur through conduction, convection AND radiation(as in EM radiation)

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JohneeG garu, do you know that heat is radiated as em waves? The reason we can "feel" heat is because our molecules interact with the infrared region of the spectrum. They also interact with higher frequency radiation such as UV and cause cancers radiation burn etc. Radiation of thermal en...

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If what you say is true, a guy called Max Planck could not have discovered the possibility of the world being Quantum Mechanical.

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The sun is not transparent. It's an almost ideal black body.

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Major LePimp would be a good name imho.

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UlanBatori wrote:Value of g at Event Horizon pls? This mus be a universal constant, hain?

In which frame of reference? For an outside observer, its 0 since they will never see anything cross the event horizon due to time dilation.

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Take a thick walled pipe made with lead, pass molten iron through it for a second. Once the iron has exited how long did it take the lead pipe to get back to normal temperature?

That is how long energy, as photons, takes to get from the inside of the pipe to the outside.

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The light may be moving tangentially at 300000000000 millimeters a second, but near the core, it is mostly around in a circle with only a tiny radial component. So I expect that INSIDE a Black Hole, it is incredibly bright, because all the trapped light is going round in circles. P.S. Pls send NoBi...

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The key here is the word "SCATTERING", its absorbed and reflected off in a random direction, which usually makes a large part of the energy directed inward. This keeps going on and on until it reaches the surface.

BTW: AmberG, I am aware that photons range from gamma rays to low freq radio.

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I think they are describing the mystery, which is that you get interference pattern even if you send one electon at a time. It interferes with itself.

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If you figure out the mystery behind double slit experiment, you have a Nobel prize waiting for you.

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Photon has no age, since it travels at the speed limit, time and age are not meaningful properties of a photon. The only thing meaningful is the age and position of the event that caused the photon to come into existence, I.e. a point in spacetime of our reference frame. When we detect a photon, we ...

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"A Photon" does not take 4000 years to reach the sun's surface from its center. No time dilution filution here :mrgreen:. A nuclear reaction usually involves energies in the gamma radiation range. That means ALL energy generated at the center of the sun is in gamma form initially. That the...

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Relativity of simultaneity is what you guys are talking about. Any two spatially separated events ocuring "simultaneously" in our (inertial) reference frame, will be non simultaneous in some other reference frame. So you can find an inertial reference frame for which any two spatially and ...

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