Bully Metric: Difference between revisions

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A few additional approximations (four digits) can be obtained from values used in the Bully Mnemonic.  These include an approximate relationship of the speed of light to the [https://en.wikipedia.org/wiki/Earth_radius Earth's radius] (r ≈ [https://www.google.com/search?q=c+*+3.055+s+%2F+sqrt%282*10330%29 6371]), Schwarzschild radius (R), [https://en.wikipedia.org/wiki/Standard_gravitational_parameter standard gravitational parameter] (μ = MG ≈ [https://www.google.com/search?q=c%5E3+*+0.03055+s+%2F%282+*+1033000000%29 3.984e14]), and a typical [https://en.wikipedia.org/wiki/Gravity_of_Earth gravitational acceleration] on earth's surface (g ≈ [https://www.google.com/search?q=c+%2F+%2830550000+s%29 9.813] ).
A few additional approximations (four digits) can be obtained from values used in the Bully Mnemonic.  These include an approximate relationship of the speed of light to the [https://en.wikipedia.org/wiki/Earth_radius Earth's radius] (r ≈ [https://www.google.com/search?q=c+*+3.055+s+%2F+sqrt%282*10330%29 6371]), Schwarzschild radius (R), [https://en.wikipedia.org/wiki/Standard_gravitational_parameter standard gravitational parameter] (μ = MG ≈ [https://www.google.com/search?q=c%5E3+*+0.03055+s+%2F%282+*+1033000000%29 3.984e14]), and a typical [https://en.wikipedia.org/wiki/Gravity_of_Earth gravitational acceleration] on earth's surface (g ≈ [https://www.google.com/search?q=c+%2F+%2830550000+s%29 9.813] ).


<math display="block"> {1 \, Sidereal \, Year} = {\color{Red} 1} 0 {\color{Red} 33} 0 \times {\color{Red} 3} 0 {\color{Red} 55} s = {31,558,150 \, Seconds} </math>
<math display="block"> {1 \, Sidereal \, Year} = {\color{Red} 1} 0 {\color{Red} 33} 0 \times {\color{Red} 3} 0 {\color{Red} 55} s = {31,558,150 \, s} </math>


<math display="block"> r_{earth} \approx {10^{-3}} \times c \times  \frac{{\color{Red} 3} 0  {\color{Red} 55}\,s}{\sqrt{{\color{Red} 2} \times {{\color{Red} 1} 0  {\color{Red} 33}  0}}} = 6371 \, km</math>
<math display="block"> r_{earth} \approx {10^{-3}} \times c \times  \frac{{\color{Red} 3} 0  {\color{Red} 55}\,s}{\sqrt{{\color{Red} 2} \times {{\color{Red} 1} 0  {\color{Red} 33}  0}}} = 6371 \, km</math>

Revision as of 00:16, 28 September 2024

There are a surprising number of earth's physical constants that can be approximated using various algebraic combinations of the following four numbers:

10330
3055
2
0.40 

A few additional approximations (four digits) can be obtained from values used in the Bully Mnemonic. These include an approximate relationship of the speed of light to the Earth's radius (r ≈ 6371), Schwarzschild radius (R), standard gravitational parameter (μ = MG ≈ 3.984e14), and a typical gravitational acceleration on earth's surface (g ≈ 9.813 ).


Prefix Base 10 Bully Metric SI Equivalent
Name Symbol Time Length Time Length
quetta Q 1030 Qta Qla 30.550 Es 9.1586595919 Rm
ronna R 1027 Rta Rla 30.550 Ps 9.1586595919 Ym
yotta Y 1024 Yta Yla 30.550 Ts 9.1586595919 Zm
zetta Z 1021 Zta Zla 30.550 Gs 9.1586595919 Em
exa E 1018 Eta Ela 30.550 Ms 9.1586595919 Pm
peta P 1015 Pta Pla 30.550 ks 9.1586595919 Tm
tera T 1012 Tta Tla 30.550 s 9.1586595919 Gm
giga G 109 Gta Gla 30.550 ms 9.1586595919 Mm
mega M 106 Mta Mla 30.550 μs 9.1586595919 km
kilo k 103 kta kla 30.550 ns 9.1586595919 m
100 ta la 30.550 ps 9.1586595919 mm
milli m 10−3 mta mla 30.550 fs 9.1586595919 μm
micro μ 10−6 μta μla 30.550 as 9.1586595919 nm
nano n 10−9 nta nla 30.550 zs 9.1586595919 pm
pico p 10−12 pta pla 30.550 ys 9.1586595919 fm
femto f 10−15 fta fla 30.550 rs 9.1586595919 am
atto a 10−18 ata ala 30.550 qs 9.1586595919 zm
zepto z 10−21 zta zla 3.0550e-3 qs 9.1586595919 ym
yocto y 10−24 yta yla 3.0550e-6 qs 9.1586595919 rm
ronto r 10−27 rta rla 30.550e-9 qs 9.1586595919 qm
quecto q 10−30 qta qla 30.550e-12 qs 9.1586595919e-3 qm