Sukanya Sinha's Mahakarsher Katha, reviewed by Rajat Chanda

c c@mv (kH)

@Ac

w\/TFOS/Sv@

SF

c^/BfcSf/mpA/AF gK/~AgoS/qA..

Arr/A@r

Books_in_English

Parabaas Moviestore

Parabaas Moviestore

T@K @- @SF Ae

B O^

T@K @ ; @SF Ae ; ~S ; @U@, T @r : BSA, 2009 ; ha : AH ATn ISBN: 978-81-906839-5-1

ceU UZ gU AcS cq ~gc Zcq @v | 60/70 ca ~w SS PcAS@ AcK B gK c @a MJa c BSF Acrgf @ U@ ArQ w^TU @Ar  |  j Ak@ Ac AcrK UZ AcrAcF ew w^TU AcKPcAOn Acm@ | A@ jq cqU cArgwq Zc eAQ | q j i@@ AcK wgf cr @ jce SS ~Acy BS R ~S^ gw c @ H ~\q Z s |

s rAU  jZS BS Sq A@ ~k gAcKF ToS ~r ~a  A@ pA ~@KH @, ~@Am@ R ~FAr ~Acy fS R Acmco ~\cf  cvq, AB cm pAgAR Uv A  | ~UOF cqAv AXfo jq wHAU @@v Z p UT |

Ur cH U A AcS w^TU ~^w . @SF Ae T@K @ cqAv jq AcK OfS R ~oAS@ wcKH ^ AccH a | OfS wf AcXo AO^ R sA ASg SFOU AUBA fTcXo @ @AS@ PcAc@ M@A^@ oH j@Av AcrU Q |  @U ~Acyp w  OU AST R wAUAUR fQTkU@ wALL, ASvSf T@K Bsn OTl@ cHS, B gJv F, SOS ~Acy OT@ @AAS a jq cq | ASvSq ZS s pAcf ~T ~Ag T@K s AST, q ASTq OJ, w R okT@ OU ASH @ | jq Universal c TBwA@ AST oH ~AgSc | ~AmvvUf ~AgT AaU s Ac jce SQnU@ AST @SS ~U | jTSA@ SQn Bw TMAU@  Ac OAv TMAU@  (BU, R, TAv R ~S) @ p@, AAS s ST AAaUS quint essence (T cm) | ASvS jq `terrestrial and celestial unification'-j o ~oAS@ AcSR OUa | ASr rNf TITAI mAvr PcAS@ TFRU ZS s AcFl, Oc@ R ~U TkU: j@q rA | ~qSmvqS m AaU T@K R TFRU LL@ j@  cJo U | U AS c ca cFf q O | c ~B @ ca OA\Ur@ ~w TAH U s TH@^ ToF@ UW rA (Weak interaction) AcFl-Oc@ Acg | TH@^ Strong interaction (d rA??) jce T@K@R j  TUS, c ToF j@ ^S, w JAOr ca ALL@ wcKH ~SFT oS UQF |

~A@U @ TS @  mS (space) R @U (time)-j T -ASQ | ASr rNf rKA@ TFRU LL R ASvSf wALL ToF ~ewA UQ @  | jq TF ToS @S ~\cf ~qSmvqS | J AcrK ~AQ@ LL (Special Theory of Relativity) jq ~ewA k @U cv A@ mS R @U  ASQ@ Ac AS U | @SF jq AcKAv jce j cf Acv Q, T@K@ ~AQ@ LL  TUS, s ~qSmvqS ~SSF @fA, B R ^gc cAIaS | mS R @U gA cm @a@Aa cn oH @ ; jq Ac@pAq T@K !

~qSmvqS T@KLL c oH ~AQ@ (General Relativity) fQ @ B S, @H s T@K  ~T OO cI @  ZS jce oH w- BwR ASvS R ~qSmvqS LL @F ~A ~\, sAR  pAgA R TkU @iT j@cq ~U | sZS T@K cU ZS j @FR ~S@ | ~F^ gA jce WS  @a@Aa oH ~AQ@ BL | jq AcK ~UOS- @SF @pG Acc c Black Hole jce ASvS  c U (Pulsar)  ~S@ ~EOsBS@ @fA@U @ B A@ ~A-Uf@p S, jTASgc cFZF @aS | j  ~a SQn BfcS@AAS, ~\cf O^rZ (j-ca J B^rcAK@f) @B TkUFS | @TAcB ZFST AcSf jAevS R ~SFSF jq @B @i AcAo U gA  Sv@f rK BfcS ~UOS c ca AAa s | jq AcK AcmA Zc ~a K. C. Wali- `Chandra' -cqAv |

~qSmvqS TpF , Kv r@, ~AQ@c ScBwH Wv | j  ~a @xvT LL R A@e-Ac@fH, wAAcF (Thermodynamics) R @pG Acc ASAc swkn qFA Ay R @MUf@ ~UOS | cI s @SF jq AcKAv @ gUcS |

o LL@ Sq cqAv | A@gc s scQH @ @pG Acc ~AmL TAH U, @B (Quasars) m A@, c wFUA, jTSA@ ~T cmS a c Milky Way @^ c ~A AcrU (Super massive) @pGAcc c, jqc OUF@ Zc BS gUSAS UAZ@ |

TFRU-j AcFl-Oc@f LL  AmA UQHf | wcKHw jq b-j Z ATUAaU ASr rNf w A@ | BwfrO^ c j m AS TkUFcS @B @S | AR R TqnRg, ~cUA, prF ~U, X-AE qFA jq AcAOn  | ~qSmvqS J Tf@HAU @ ZUS s T@K QnR  pA   s ~U wA cA c | j@Av ASvS-BAv cFc @ jq  ~AmL TH U 1980 Sw | A@ q  S @ j  S o BSF AcSf i  UwaS | SS r fQw jce @@Av T@rsS sF AcrU interferometer-j J jq T@K-b o O OUc | 2018 U ToFq jq b ^fgc o sc jTAS ~r @ sha | gAcKF jq b j@Av SS BSU ZU c Acr@ SS ~U Z BSF | w ~o-rNf AR, TqnRg, ~cUA, ~A-cwSf R X-AE sF AcrBw c^ ~T oH c jAw wa | s-c WvS AcFl-Oc@f  SwU cq  Z sc T@K-bj ToFT | wFUA @^ U@S Zc, Sg- cF F, ~A kcf wT-AE AcmH F, jTS A@ Acw cFe-j SA-SQn Zc  T@Kf kcfH o c j@AS |

oH ~AQ@ fTcXo o  @pG Acc @^ c Ac.w cFe-j B^Tk | T@K R @xvT-LL ATr Z S | ~STn mS R @HTn T WvScUf cI U @xvT LL ~As | jZSR T@K BSF @S gwa @xvT QnLL PA @ sAS |  fTcXo jqvq @H | Av ~rBS@  ~a TS  : Amve ARA R @xvT BFATA | A@ j- rK A@ ~a ~c ~M A@a ~a A@ S jZSR @  BSS S | rK Aha i@@ "BS ~BS fT" MJAa @SF cqAv rK @aS |

cqv cf emH BSF ~T @@Av ~So ~a | 82 p, sZS T@Kf T H @ ~UAO a, ZS  cTS (white dwarf) Bf , s T@K cU, cHUf UU-^ A@  ~ @,  \UZswF | 1920- r@ Adams ST j@ BFAAc @FAUAS Txv qUS TSTA^ Sirius B, ~l UNo@ SQn  cTS fAv cHUf fQ @ jq  ~ Z S s ~qSmvqS Ac  TU | cU vAUm kQ pA jq fQ ~ BU TH a | ASvS  Qn jq  ~ ATH ~S@ cAr --  20% | A@ scQHAU ~AQ@c@ ~cR TS @a |

~S@ TS @S s AcrK R oH ~AQ@ gc ~T BfcS ~c^ | ~S@q BSS S s Global Positioning System (GPS), s sF jS R BB OUS  jce US R wA s sF @S Ai@S, @S, mJ qFA ZJB R Zc B,  ~AQ@ sF a ~OU | j@v cAI cU s@ | ~S@AU ~SAc@ WAs @pAnT w 20,000 A@.AT. hO @ Wxv 14,000 A@A.T. cw pAcf@ AQH @a | pAcf s-@S Ac^ @ ~^ OAv w Z s s-@S T | ABAj w@s^ j @ T e@  Tn 5 @ 10 ATv ToF ASB ~cmS BS  | j BSF T e@AU ~ASEO Acr-Anr SFS-@ @T  c | ~U j@ SFS@ OU j@ v |

s wAU gkp @ ~S@  ~a, sZS T@K @T, oH ~AQ@ cU ZS WA pAcf WA US A OUc ---- jQn AS 45 Tqn@ jAw sc | ~c AcrK ~AQ@ cU w WA AS  Tqn@ Aa sc pAcf WA US  ~AQ@ wA BSF | q jq ~AQ@ T c Ac ASU w WA ~T WA O PAS@ 38 Tqn@ jAw @c | q ~AQ@@ Q @U gU ATH 38,000 SFS@, s U ~cmS gU c PAS@  12 A@. AT. ! ~l ~AQ@ eroS AcS ABAj ~OU jce oH ~AQ@ RBSq jZS cAr | Ac UF  ABAj cFcq ~AQ@ ASFPSATA@ TH |

jq kn Ai@ T T sF T A@gc gkp ~cmS ASH @ , ~r rNf qeB WA AST q OT@ w\ @MkUf i@ Dava Sobel-j Longitude cqAv cS |

162  Acr H LA^ c jce ~prF rA Ac@K@ cU swS @ Zc eQ cU a | s 1998-j jq ~FAr R AcZF ~Acy w r ca AA a jce ~oAS@ AcrLL j@Av oS ~  ia (Lambda - CDM model) q j@v Acrgc AcKAv ~UOS @ | AcrK @ AcAg^ kL Type 1a Sg (BUT "standard candles")- ~ BU @ A@ gc Acr H qA WAv a (LAH H d 5 AcAUS ca ~w) j@v AcmA gc cAI cUU i@ A@ jTS A@ gAcKF SS ~Acy ls cI Aco c cU TS @A |

cqj rK caq @ @@Av cq jce A@a gU BcoF c^ R web links-j (T^cF) \UZ @U lf i@ @p cS |

jc @@Av nAv R THT @ UAa | 20  T@Kkn T @r 1685 U | @FU@U ~Acy UqcASv-j \UZ BS | 24  1 Se aAc c 3 Se aAc | B 5 Se aAc cHS cAr R @T @ \v AUZU aAc  ATUc | 86  rK c@FAv c a a | 134  AXf Fw "@^ @a ... wFUA" ~erAvR c a a | 94  r UQ c JOr @Av ~c 5 AcAUS, @H ks qBS @ AAUT PA c (Main Sequence) ~  r AcAUS ca | ks B^AaU  5 AcAUS ca ~w | 102  "AAUT @^@ j@Av vS R j@Av ASvS"-j Bw "...Av ... Av.." c | 27 Se aAc ~S Av ST cU @ ASU 147  cHS  ATUc | ~R @@Av THT OZ U A@ U wMH |

e cAU cqAv Zc gU a | ASvS cf T@K cI @AiS | jq  AcK SS A@ Bgc cIS Tvq B S, AcrK AcS AgK R ~e@ c A | jq @B @SF @p@s aS | AAS ceU AcSi@ @a oSFc cS |

(c-45, jAU, 2010)

jq UZ ~S @TS UwU ?