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03-14-2018, 02:39 PM

TFS!!!
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03-14-2018, 02:56 PM

Tfs..good one...
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03-14-2018, 03:03 PM

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Originally Posted by Pessimist View Post
මේ බං. උඹ GTR කරල තියෙනවනං මේක පොඩ්ඩක් පැහැදිලි කරල දියංකො.

කලු කුහර කොහොමද බං අපිට නිරීක්ශණය කරන්න පුලුවන් වෙන්නෙ ? බාහිර නිරීක්ශකයෙකුගෙ රාමුවෙ ඉඳන් බැලුවොත් event horizon එක ගාව කාලය නවතිනවනෙ බං. ඉතිං කලු කුහරයක් අපේ රාමුවෙ ඇතිවෙන්නවත් බෑනෙ. ඒක අනන්ත කාලයක් අනාගතයෙනෙ තියෙන්න ඕනෙ නේ?

අනික කලු කුහරෙට කිසිම වස්තුවක් ඇද ගන්නත් බෑනෙ. අපේ රාමුවෙ ඉඳන් බැලුවොත් ඇදෙන හැම එකම event horizon එක ගාවදි කාලය ගලන්නැති නිසා නවතින්න ඕනෙ නේ බං ?

අනික හෝකිං black holes and baby universes වල කියනව heisenberg ගෙ uncertainty principle එක අනුව අංශු කුඩා දුරක් ආලෝකයෙ වේගෙට වඩා වැඩියෙන් යන්න පුලුවන් ඒ නිසා කලු කුහර වල event horizon එකෙං මෙහාට අංශු පැනල කලු කුහරෙං මිදිල යන්න පුලුවන් කියල. ලොකු කලු කුහර වල ප්‍රමාණෙ විශාල නිසා වේගෙ uncertainty එක ඒ හැටි වෙන්න බැරි නිසා එහෙම මිදෙන්නෙ අඩුවෙන් පොඩි ඒවගෙ පොසිශන් එක බොහෝ දුරට certain නිසා ටක් ගාල මිදිල කලු කුහරෙ evaporate වෙලා යනව කියල. එහෙම අංශුවකට ආලෝකෙ වේගෙට වඩා යන්න පුලුවන් වීම සාපේක්ශතාවාදෙ කඩ කරන්නැද්ද බං ? හරි නං ප්‍රවේගෙ(V)ට certainty එකක් තියෙන්න ඕනෙ නේද -C<= V <= C කියල ? එහෙම අරං නෙමේදෙ භෞතික විද්‍යාවෙ ප්‍රශ්න විසඳන්නෙ ?


වෙලා නැත්තං පුලුවන්නං පස්සෙ හරි මේ ගැන පොඩ්ඩක් විස්තර කරල දීපං.
1. කළු කුහර කවුරුත් තාම කෙලින් දැකලා නෑ කළු නිසා , අපි කළු කුහර තියෙනවා කියන්නේ indirect විදියට.

2. කළු කුහරයක් ඇති වෙන්නේ අපේ රාමුවේ නෙමේ කාල-අවකාශ තලයේ ගොඩක් පහලට වෙන්න

3. කළු කුහරයක් ඇතුලේ කාලේ යන්නේ හෙමින්, singularity point එකේදී තමයි කාලේ නතර වෙන්නේ, හැබැයි ගුරුතවකර්ශනය අනන්තයි, ඒක නිසා තමයි GR එතනදි fail වෙන්නේ.

4. උබ ඔය කියන්නේ Hawking Radiation එක ගැන, uncertainty principle එකෙන් තමයි විස්තර කරන්නේ අංශු හැදෙන්නේ event horizon එක ගාව කියල කළු කුහරේ ඇතුලේ නෙමෙයි.

5. නෑ, Hawking Radiation එකෙන් එන අංශු ආලෝකේ වේගෙට වඩා ගමන් කරන්න බෑ, ආලෝකේ වේගෙට වඩා ගමන් කරන දේවල් තියෙනවා විශ්වයේ, හැබැයි Special relativity වලින් කියන්නේ කිසිම information එකක් ආලෝකේ වේගෙට වඩා ගමන් කරන්න බෑ කියල

6. ඇත්තටම උබ කියල තියෙන එකේ heisenberg ගෙ uncertainty principle නෙමේ use වෙන්නේ Energy time uncertainty principle එක, අනිත් එක සාමාන්‍ය කලු කුහරයක් evaporate වෙන්න අවුරුදු 10^15 විතර යනවා.
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03-14-2018, 03:33 PM

Quote:
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Nope not just thoeries, even though we see practically, a theory takes so much time to be scientifically proved
i cant wait that long i have 40 or maximum 45 years....
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