Example 20 Introduction to Black Holes
ABlackHolerepresentsaperfectequilibriumbetweentheElectricForces,MagneticForcesandGravitationalForces.​​​​term1+term2+term3+term4+term5+term6=0
term1=-
1
2
c
∂
¯
E
×
¯
Η

∂t
​​​​term2=
ε
0
¯
E
(∇. 
¯
E
)​​​​term3=−
ε
0
¯
E
×(∇×
¯
E
)​​​​term4=
μ
0
¯
Η
∇. 
¯
Η
​​​​term5=−
μ
0
¯
Η
×∇×
¯
Η
​​​​term6=-
1
2

2
ε
μ
¯
E
 . 
¯
E

+
ε
2
 μ

¯
H
 . 
¯
H

¯
g
In[]:=
ϵ0=.
In[]:=
μ0=.
In[]:=
r=.
In[]:=
θ=.
In[]:=
φ=.
In[]:=
t=.
In[]:=
InverseFunctions->True
Out[]=
InverseFunctionsTrue
In[]:=
Needs["DifferentialEquations`NDSolveProblems`"]
In[]:=
Needs["DifferentialEquations`NDSolveUtilities`"]
In[]:=
Needs["DifferentialEquations`InterpolatingFunctionAnatomy`"]
In[]:=
InverseFunctions->True
Out[]=
InverseFunctionsTrue
In[]:=
Get["VectorAnalysis`"]
General
:VectorAnalysis` is now obsolete. The legacy version being loaded may conflict with current functionality. See the Compatibility Guide for updating information.
In[]:=
r=.
In[]:=
SetCoordinates[Spherical[r,θ,φ]]
Out[]=
Spherical[r,θ,φ]
In[]:=
{Coordinates[Spherical],CoordinateRanges[Spherical]}
Out[]=
{{r,θ,φ},{0≤r<∞,0≤θ≤π,-π<φ≤π}}
In[]:=
CoordinatesToCartesian[Coordinates[Spherical],Spherical]
Out[]=
{rCos[φ]Sin[θ],rSin[θ]Sin[φ],rCos[θ]}
In[]:=
f[r]=.
In[]:=
n=.
In[]:=
ϵ0=.
In[]:=
μ0=.
In[]:=
Q1=.
In[]:=
G1=6.67408
-11
10
Out[]=
6.67408×
-11
10
In[]:=
Q1=1.6021765
-19
10
Out[]=
1.60218×
-19
10
In[]:=
ϵ0=8.85
-12
10
Out[]=
8.85×
-12
10
In[]:=
μ0=4π
-7
10
//N
Out[]=
1.25664×
-6
10
In[]:=
G1=.
In[]:=
Q1=.
In[]:=
ϵ0=.
In[]:=
μ0=.
In[]:=
f[r]=K1
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

Out[]=
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

K1
In[]:=
ev={0,f[r]Sin[ωt],-f[r]Cos[tω]}
Out[]=
0,
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

K1Sin[tω],-
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

K1Cos[tω]
In[]:=
mv=(1/Sqrt[μ0])Sqrt[ϵ0]{0,f[r]Cos[tω],f[r]Sin[tω]}
Out[]=
0,
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

K1
ϵ0
Cos[tω]
μ0
,
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

K1
ϵ0
Sin[tω]
μ0

In[]:=
gv=
G1
4π
2
r
,0,0
Out[]=

G1
4π
2
r
,0,0
In[]:=
ev
Out[]=
0,
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

K1Sin[tω],-
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

K1Cos[tω]
In[]:=
Div[ev]
Out[]=
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

K1Cot[θ]Sin[tω]
r
In[]:=
Div[mv]
Out[]=
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

K1
ϵ0
Cos[tω]Cot[θ]
r
μ0
In[]:=
FullSimplify[%]
Out[]=
G1ϵ0μ0
8πr

K1
ϵ0
Cos[tω]Cot[θ]
2
r
μ0
In[]:=
term1a=D[Cross[ev,mv],t]
Out[]=
{0,0,0}
In[]:=
term1=((-ϵ0)*μ0)*D[Cross[ev,mv],t]
Out[]=
{0,0,0}
In[]:=
term2=ϵ0*ev*Div[ev]
Out[]=
0,
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0Cot[θ]
2
Sin[tω]
r
,-
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0Cos[tω]Cot[θ]Sin[tω]
r

In[]:=
term3=(-ϵ0)*Cross[ev,Curl[ev]]
Out[]=
-ϵ0-
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

G1
2
K1
ϵ0μ0
2
Cos[tω]
8π
2
r
-
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

G1
2
K1
ϵ0μ0
2
Sin[tω]
8π
2
r
,-
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0
2
Cos[tω]
Cot[θ]
r
,-
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0Cos[tω]Cot[θ]Sin[tω]
r

In[]:=
term4=μ0*mv*Div[mv]
Out[]=
0,
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0
2
Cos[tω]
Cot[θ]
r
,
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0Cos[tω]Cot[θ]Sin[tω]
r

In[]:=
term5=(-μ0)*Cross[mv,Curl[mv]]
Out[]=
-μ0-
G1ϵ0μ0
4πr

G1
2
K1
2
ϵ0
2
Cos[tω]
8π
4
r
-
G1ϵ0μ0
4πr

G1
2
K1
2
ϵ0
2
Sin[tω]
8π
4
r
,-
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0Cot[θ]
2
Sin[tω]
r
,
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0Cos[tω]Cot[θ]Sin[tω]
r

In[]:=
term6=-
ϵ0
2
μ0
2
Dot[mv,mv]+
2
ϵ0
μ0
2
Dot[ev,ev]gv
Out[]=

G1-
1
2
2
ϵ0
μ0
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
2
Cos[tω]
+
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
2
Sin[tω]
-
1
2
ϵ0
2
μ0
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0
2
Cos[tω]
μ0
+
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0
2
Sin[tω]
μ0
4π
2
r
,0,0
In[]:=
vergelijking=term1+term2+term3+term4+term5+term6
Out[]=
-μ0-
G1ϵ0μ0
4πr

G1
2
K1
2
ϵ0
2
Cos[tω]
8π
4
r
-
G1ϵ0μ0
4πr

G1
2
K1
2
ϵ0
2
Sin[tω]
8π
4
r
-ϵ0-
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

G1
2
K1
ϵ0μ0
2
Cos[tω]
8π
2
r
-
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

G1
2
K1
ϵ0μ0
2
Sin[tω]
8π
2
r
+
G1-
1
2
2
ϵ0
μ0
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
2
Cos[tω]
+
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
2
Sin[tω]
-
1
2
ϵ0
2
μ0
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0
2
Cos[tω]
μ0
+
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0
2
Sin[tω]
μ0
4π
2
r
,0,0
In[]:=
rvergelijking=term1[[1]]+term2[[1]]+term3[[1]]+term4[[1]]+​​term5[[1]]+term6[[1]]
Out[]=
-μ0-
G1ϵ0μ0
4πr

G1
2
K1
2
ϵ0
2
Cos[tω]
8π
4
r
-
G1ϵ0μ0
4πr

G1
2
K1
2
ϵ0
2
Sin[tω]
8π
4
r
-ϵ0-
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

G1
2
K1
ϵ0μ0
2
Cos[tω]
8π
2
r
-
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

G1
2
K1
ϵ0μ0
2
Sin[tω]
8π
2
r
+
G1-
1
2
2
ϵ0
μ0
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
2
Cos[tω]
+
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
2
Sin[tω]
-
1
2
ϵ0
2
μ0
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0
2
Cos[tω]
μ0
+
-
-
G1ϵ0μ0
r
+8πLog[r]
4π

2
K1
ϵ0
2
Sin[tω]
μ0
4π
2
r
In[]:=
FullSimplify[%]
Out[]=
0
In[]:=
rvergelijking1=%
Out[]=
0
In[]:=
θvergelijking=term1[[2]]+term2[[2]]+term3[[2]]+term4[[2]]+​​term5[[2]]+term6[[2]]
Out[]=
0
In[]:=
FullSimplify[%]
Out[]=
0
In[]:=
θvergelijking1=%
Out[]=
0
In[]:=
φvergelijking=term1[[3]]+term2[[3]]+term3[[3]]+term4[[3]]+​​term5[[3]]+term6[[3]]
Out[]=
0
In[]:=
FullSimplify[%]
Out[]=
0
In[]:=
φvergelijking1=%
Out[]=
0
Results force densities in resp r-direction, θ-direction, φ-direction
In[]:=
rvergelijking1
Out[]=
0
In[]:=
θvergelijking1
Out[]=
0
In[]:=
φvergelijking1
Out[]=
0
In[]:=
Theradialfunction'f[r]'fortheelectromagnetic-gravitationalconfinement(GEON)equals:f[r]=K1
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

​​Inthebook:'
RisingoftheJamesWebbSpaceTelescopeanditsFundamentalBlindness
',page104,Figure4,agraphicPlothasbeenpresentedfortheGEONwiththechosenvalueforK1=6.67408
-11
10
Set
:Tag Plus in -confinementGEONgravitationalequals:
-
Times[5]+Times[3]
8π

K1+electromagneticforradialtheThe
′
function
′

-
Times[5]+Times[3]
8π

K1
is Protected.
Out[]=
-
-
G1ϵ0μ0
r
+8πLog[r]
8π

K1
In[]:=
ϵ0=8.85
-12
10
Out[]=
8.85×
-12
10
In[]:=
μ0=4π
-7
10
Out[]=
π
2500000
In[]:=
Thevalueforthegravitationalconstant
G1
equals
Out[]=
constantequalsforgravitationaltheThevalue
G1
In[]:=
G1=6.67408
-11
10
Out[]=
6.67408×
-11
10
In[]:=
ϵ0=8.85
-12
10
Out[]=
8.85×
-12
10
In[]:=
μ0=4π
-7
10
Out[]=
π
2500000
TheMassfortheBlackHolehasbeenchosen:Mass=
35
10
[kg]
Out[]=
constantequalsforgravitationaltheThevalue
G1
In[]:=
Mass=
35
10
Out[]=
100000000000000000000000000000000000
In[]:=
Plot
-
-
MassG1ϵ0μ0
r
+8πLog[r]
8π

,{r,
7
10
,
4
10
}
Out[]=
In[]:=
Plot
-
-
MassG1ϵ0μ0
r
+8πLog[r]
8π

,{r,
5
10
,
4
10
}
Out[]=
TheMassfortheBlackHolehasbeenchosen:Mass=
35
10
[kg].TheradiusoftheBlackHoleequalsabout25[km].
​