 static gravitational field. In the General Relativity, the field equations of gravitation (13) express Gμν as the Ricci tensor, taking the form: "Rμν =-kTμν (Eq. 13) since we already know that these equations are covariant under any transformation of a determinant equal to 1"....They "contains Newton's law as an approximation". But, in the equation (3) of conservation of the energy-impulse, tμν formulated as and indicated properly as the "energy tensor of the gravitational field which, by the way, has tensorial character only under linear transformation" [19]. The motion of a material particle, free of the action of forces, is subject only to the action of the inertia and the gravitation moving inside of a geodesic. "We note that the equations of motion of a material point in a gravitational field take the form" [19]: (Eq. 14) If it annuls all the components of the gravitational field is equation becomes of one straight line. From the theoretical perspective "Einstein's belief that the final form of his gravitational theory, as it emerged in late 1915 and early 1916, embodied a general principle of relativity is stated explicitly: "The general laws of nature are to be expressed by t j i t j i tσ λ d 2 xτ ds2 =Σ μ ν Γμ ν τ dxμ ds dxν ds Γμν τ equations which hold good for all systems of coordinates, that is, are covariant with respect to any substitutions whatever (generally covariant)". It is clear that a physical theory which satisfies this postulate will also be suitable for a general postulate of relativity. For the sum of all substitutions in any case includes those which correspond to all relative motions of three dimensional systems of coordinates.., this requirement of general covariance.., takes away from space and time the last remnant of physical objectivity..." [7]. Thus the equations (6) of the Entwurf theory ∆μν (Φ) = k(tμν + Tμν) (Eq. 6) were replaced by the equations (12) of General Relativity. Therefore, in 1915, Einstein vanished tμν, i.e, with the materiality of gravitational field. "The most important feature of the Einstein's equations is that the right part of equations (12) does not include the energy-momentum of the gravity field itself, and this corresponds the fact that in General Relativity the gravity is not
static gravitational field. In the General Relativity, the field equations of gravity (13) carry Gμν as the Ricci tensor, taking the form: " Rμν = -kTμν (Eq. 13) since we already acknowledge that these equality are covariant under any transformation of a determinant equal to 1".... They " contain Newton's police as an approximation ". But, in the equality (3) of conservation of the department of energy - impulse, tμν formulated as and argue properly as the " energy tensor of the gravitational field which, by the direction, has tensorial character only under linear transformation " [ 19 ]. The motion of a corporeal particle, free of the action of force, is subject only to the action of the inertia and the gravity moving at heart of a geodesic. " We note that the equations of motion of a fabric point in a gravitational field take the form " [ 19 ]: (Eq. 14) If it annuls all the components of the gravitational playing field is equality becomes of one straight line. From the theoretical perspective " Einstein's belief that the final form of his gravitational hypothesis, as it emerged in belated 1915 and early 1916, embodied a general principle of relativity is express explicitly: " The general laws of nature are to be expressed by t j i t j i tσ λ vitamin d 2 xτ ds2 = Σ μ ν Γμ ν τ dxμ ds dxν ds Γμν τ equations which hold good for all systems of coordinate, that is, are covariant with respect to any substitutions whatever (generally covariant) ". It is clear that a physical theory which satisfies this postulate will also be suitable for a general postulate of relativity. For the sum of all substitutions in any shell includes those which match to all relative motions of three dimensional systems of coordinates.. , this requirement of cosmopolitan covariance.. , takes away from space and time the last remnant of physical objectivity... " [ 7 ]. Thus the equations (6) of the Entwurf hypothesis ∆μν (Φ) = k(tμν + Tμν) (Eq. 6) were replaced by the equations (12) of General Relativity. Therefore, in 1915, Einstein vanished tμν, i.e, with the materiality of gravitational field. " The about important feature of the Einstein's equations is that the right contribution of equations (12) does not admit the energy - momentum of the gravity field itself, and this represent the fact that in General Relativity the gravity is not
 stwtic gravitational field. In the General Relatitity, ths field dquations of gravitation (13) ex'resw Gμν aw the Ricci tensor, takkng the flrm: "Rμν =-kTμν (Eq. 13) wince we already kkjw tgwt tkewe equations ate covariant under any tratswoxmation of a determinant equal to 1"....Thqy "contsijs Newton's law as sg aplgowimation". But, in the equation (3) of consernation of the enetgy-impulse, tμν formulated as and indicated properlj as the "engdgy rensor of thd gravitatpmnal field which, by the way, has tensorial charccter only oueer ninear tranwformwtion" [19]. The motion of a matetial particle, nree mf rhe action of forces, ms subject only to tre action oy the inertia and the geavitdtiot moxung inaive kf a gfodxsic. "We nots that the wquations of motion os a material pkint ig w gravitational field take the form" [19]: (Eq. 14) Ir it annuls all the components of the gravitwtional fyeld is equation becomes of one straight line. Frok the gheircticxo oerspective "Einstein's belief that the final fjdm on his gravitatiokal theory, as it ekeggrq in late 1915 ana earlv 1916, smbodied a general princikle of relativiuy is stated explicitly: "The geneeal laws of uatyre are to be exprzssed by t j i t j i yσ λ d 2 xτ ds2 =Σ μ ν Γμ ν τ dxμ ds bxν ds Γμν τ equations which homa good for all shstvms mf coordinates, that is, are covarianv witk respecg to any stbstitutiojs whatever (generally cogariaut)". It is clear hhat a physical theory which savmsfies this ppsduldte will also be suitable sor a general kostulate of rdlativity. Ror the sum of all substitutionv in any case includef thise qhich cufrespond to alk relativv iotiins of three dimenxiovzl systems of cioreinates.., this reauifemqnn oh genqsal covarianwe.., txker away from skcce xnd yime the last remnand of physical objectivotn..." [7]. Thus tye equatyons (6) of the Rntwurf theory ∆μν (Φ) = n(tμν + Tμν) (Eq. 6) werr rgplaced by the equations (12) of Geheral Relwtiyity. Thereforq, in 1915, Einstein vcnished tμν, i.e, with the materiality of gratitational field. "The mowt important featurg on the Einstemn's eqtations iv that the right parr of equations (12) dpes not include the ehergy-mmmentkm of the gravity field itself, and this corresponds the fact that in Geneeal Relativity the grafity ps uot
static gravitational field. In the General Relativity, equations gravitation (13) Gμν as the "Rμν (Eq. 13) since already know that equations are covariant under any transformation a determinant equal to 1"....They "contains Newton's law as an approximation". But, in equation (3) of conservation of the energy-impulse, tμν formulated as and indicated properly the tensor the field which, by the way, has tensorial character only under linear transformation" [19]. The motion of material particle, free of the action of forces, subject only to the of the inertia and the moving of a "We that equations of motion a material point in a gravitational field take the form" [19]: (Eq. 14) If it annuls all components of field is becomes one line. From the "Einstein's belief that the final form theory, as it emerged in late 1915 and 1916, embodied general principle of relativity is stated "The general laws of nature are to be by t j i t j i tσ λ d 2 xτ ds2 =Σ μ ν τ dxμ ds ds Γμν τ which good all of coordinates, is, are covariant with respect to any substitutions whatever (generally covariant)". is clear that a physical theory which satisfies this postulate be for a general of relativity. For the of substitutions in any case which to of dimensional of coordinates.., this requirement general covariance.., takes away from and time the last Thus the equations (6) of the Entwurf theory (Φ) = k(tμν + Tμν) (Eq. 6) replaced by the equations (12) of General Relativity. Therefore, in 1915, Einstein tμν, i.e, materiality of gravitational field. "The most important feature the Einstein's equations is the right part of equations (12) does not include energy-momentum the gravity itself, and this the fact that General Relativity the not
 static gravitational field. IN the GeneraL RelaTivIty, ThE fieLd eqUations of graviTAtioN (13) express Gμν as the Ricci tEnsor, TaKIng tHE fOrm: "RμΝ =-kTμν (Eq. 13) SInCE We aLrEaDy kNoW ThAt theSe eQuationS are covariAnt UnDer any transfORmAtion of a deTerMinant equal tO 1"....ThEy "contAiNs NEWton's Law As an aPproxiMAtion". BUt, in the eqUaTIon (3) of cONservatION oF the Energy-impulse, tμν fORmULated as and indiCated pRoPErLY As tHe "eNergy tensoR oF the gRAvitatiONaL FIEld WHich, by the way, hAs tensorial CHarActer oNlY unDEr lineAr traNsFOrmAtion" [19]. The motIon oF a materiaL partiCLe, free oF The actiOn of foRceS, is SubjECt OnLy tO tHE acTIoN of THe iNertia anD tHe GraviTatiON MOVing InsIde oF a geoDesic. "We note thAt tHe eqUAtiOns of MotioN of a MaTeriaL point In a grAvItational field tAke tHe form" [19]: (Eq. 14) IF it AnNulS aLl the COmponeNts Of tHe graviTationaL FieLd IS EQuAtion becomes of one sTrAIGhT line. FroM the thEOrEtICal perspEcTivE "EinSTEin's bElieF ThAt the finAl form OF hIs GravitaTiOnal thEoRy, aS it EmergED in lAte 1915 and Early 1916, embOdied A General principLE of relativity IS sTATeD ExplIciTly: "The generAl laWS of nAturE ArE to BE exprEssed By T J i T J i tσ λ d 2 xτ ds2 =Σ μ ν Γμ ν τ dxΜ dS dxν ds γμν τ eQuations which Hold good foR ALL systems Of coORdINates, that is, are CovarIant with reSPect to anY subsTitutionS whatever (GENerally cOvaRiaNt)". IT is CLEaR that a physicaL THeorY wHich satIsfIes this PosTulAte WilL aLso be suitAble for a GeNeRaL pOstUlate OF relativItY. FoR tHe sUm of aLL substItutiOns iN aNy CAse IncludeS ThOSE whiCh CoRresPonD tO all rElatIVe mOtions oF three dimEnsIOnal SyStEms of coOrdinates.., this ReQuirement oF gEneRal covARIance.., takEs away from space and time tHE last reMnaNt of pHysiCal objectIviTy..." [7]. Thus The EQuatioNs (6) of thE EntwUrF thEORy ∆μν (Φ) = K(TΜν + tμν) (eq. 6) Were replacED By tHe equAtIons (12) Of GenerAl Relativity. TherefORe, iN 1915, Einstein vaniSheD tμν, I.E, WiTh tHE mATerIaLIty OF Gravitational fiEld. "The most ImPOrTant featurE Of tHe einsteiN's equatIons iS That the Right part Of equatioNs (12) Does NOT inClude the enErgy-momeNtum of the GRavitY FiEld itSelF, and thIs CorRespoNds the FAct That iN GenerAl relatiVity tHe Gravity iS not
 static gravitational fiel d. In theGener alRel at ivit y, t he field equat i onsof gravitation (13) ex press  G μ ν as th e Ric ci tens o r, t aki ng  t hefo r m:  "Rμν  =- kTμν (E q. 13) sin cewe  already kno w  t hat theseequ ations are c ova riantun der any t ran sform ationo f a de terminant  e q ual to 1"....T h e y"con tains Newton's la w  a s  an approximat ion".Bu t ,i n  th e e quation (3 )of co n servati o no f the energy-impuls e, tμν form u lat ed asan d i n dicate d pro pe r lyas the "ene rgytensor of  the g r avitati o nal fie ld whi ch,  by  the wa y,  ha st ens o ri alc har acter on ly  u nderline a r t rans for mati on" [ 19]. The moti onof a mat erial  part icle ,freeof the  acti on  of forces, issubj ect onlytoth e a ct ion o f  the i ner tia  and th e gravi t ati on m o vi ng inside of a geo de s i c.  "We not e that th ee quations  o f m otio n of amate r ia l pointin a g r av it ational  f ield t ak e t heform" [19] : (Eq.  14) Ifit an n uls all the co m ponents of th e  g r a vi t atio nal  field is e quat i on b ecom e sofo ne st raigh tl in e . From the theoreti ca l pers pecti ve "Einstein' s belief t h a t  the fin al f o rm of his gravita tiona l theory,a s it eme rgedin late1915 ande a rly 1916 , e mbo die d a g en eral principl e of r el ativity  is  stated  ex pli cit ly:  " The gener al lawsof  n at ur e a re to be expre ss edby  tj i t j i tσ  λ d2 xτ  d s2 =Σμ ν Γμν  τ d xμ d sdx ν ds  Γμ ντ equ atio n s w hich ho ld good f ora ll s ys te ms of c oordinates, t ha t is, areco var iant w i t h respec t to any substitutionsw hatever  (g enera llycovariant )".  It is  cl e ar tha t a ph ysica lthe o r y whi c h  s ati sf ies this p o s tul ate w il l al so be s uitable for a gene r alpostulate ofrel ativ i t y.  Fo r  t h e s um ofa l l substitutions  in any ca se in cludes tho s e w hi ch corr espondto al l  relati ve motion s of thre edime n s ion al systems  of coor dinates.. ,  this re quire men t of g en era l cov arianc e ..,  take s away  f rom sp ace a nd  time th e last remnant of physi cal ob jecti vit y..." [7] . T h usthe equat ions  (6) of th e E ntw urf t heo r y ∆μν  (Φ) =k(t μ ν + T μν)( Eq. 6) we r erep l a ce d by the eq u a t ion s (12 ) o f  Gener al R elativity. Theref o re, in 1915, E inst e i n v ani s hedtμ ν, i.e, with t hema t e rialityof  gravitatio nal fiel d. "Themost i mporta nt feat u r eo f theEins tei n's equat ion si s thatth er ight p artof  equat ions ( 1 2) d o e s not include th e ene r g y-mom e ntu m ofth e gravi t y fi eld itself , and thiscorres pond s the  fact t ha t in G ene ra l Relativi t y the gra vityis not
 static_gravitational field._In the General Relativity,_the field_equations_of gravitation_(13)_express Gμν as_the Ricci tensor,_taking the form: "Rμν_=-kTμν (Eq. 13)_since_we already know that these equations are covariant under any transformation of a determinant_equal_to 1"....They_"contains_Newton's_law as an approximation". But,_in the equation (3) of_conservation of_the energy-impulse, tμν formulated as and indicated properly_as_the "energy tensor_of the gravitational field which, by the way, has_tensorial character only under linear transformation"_[19]. The motion_of_a_material particle, free of_the action of forces, is subject_only to the action of the_inertia and the gravitation moving inside of_a geodesic. "We note that the_equations of motion of a_material point_in a gravitational field take_the form" [19]:_(Eq. 14)_If it annuls_all the components of the gravitational_field is equation_becomes of one straight line. From_the_theoretical perspective "Einstein's_belief_that_the final_form of his_gravitational_theory, as_it_emerged in late 1915 and early_1916,_embodied a general principle of relativity is_stated explicitly: "The general_laws_of nature are to_be expressed by t j_i t j i tσ λ_d 2_xτ ds2_=Σ μ ν Γμ ν τ dxμ ds dxν ds Γμν_τ equations which hold good for_all systems of coordinates,_that is,_are_covariant with respect_to_any substitutions_whatever (generally covariant)". It is clear that_a physical_theory which satisfies this postulate will_also be suitable for_a_general postulate of relativity. For the_sum of all substitutions in any_case includes those which correspond_to_all_relative motions of three dimensional_systems of coordinates.., this requirement of_general covariance.., takes_away from space and time the last_remnant_of physical objectivity..." [7]. Thus the_equations_(6) of the Entwurf theory ∆μν_(Φ)_=_k(tμν + Tμν) (Eq. 6)_were replaced by the equations (12)_of General Relativity. Therefore, in 1915, Einstein vanished tμν,_i.e, with the_materiality of gravitational field. "The_most_important_feature of the Einstein's equations is that the right part_of equations_(12) does not_include the energy-momentum of the gravity field itself, and this_corresponds the fact that in General Relativity_the gravity is not