- 4,338
- 2,322
You know how we have 6.3 megatons set as City Level? Yeah, that is a very outdated element from the Outskirts Battledome that we took and still wore as a badge. See, the minimum was based on the OBD guideline that used an old Javascript nuke calculator, with said calculator only being accurate to the tenths. The guy who invented the guideline over at the Outskirts Battledome didn't really check the accuracy of that one; he just took 6.3 megatons and rolled with it.
Both the old Javascript calculator this page (which the inventor of the City Level guideline used), the guideline's inventor, and our Explosion Yield Calculations page used the formula in this page to determine the power of nuclear explosions at certain levels: https://nuclearweaponarchive.org/Nwfaq/Nfaq5.html
The formula is described as such: r_blast=Y^0.33 * constant_bl, with the yield being represented in kilotons, constant_bl being 0.28 at 20 psi of overpressure (enough to warrant near-100% fatalities). r_blast in the case of City Level's guideline is set at exactly 5 km.
Running it all back, here's what I got.:
5/0.28=17.85714286
0.33√(17.85714286)=6213.976623 kilotons
If we were to round that to the nearest tenth (based on our Attack Potency page) or even the nearest hundredths (which most Calc Group members consider a bare minimum from what I've observed), the value doesn't come anywhere close to the old OBD guideline we grabbed.
I posted this thread here in the Calc Group Discussion forum since it would affect calculations the most and even then... Meh, I've seen smaller differences being applied onto the wiki, specifically the change from 214.35 to 214 J/cm³ for rock pulverization (a measly 0.16% difference!). A 1.6% difference is one order of magnitude bigger than that change. If anything, I think it would make a bigger difference in Small City Level than City Level, basically like this:
Small City Level+: 3.65-->3.6 megatons (1.37%)
City Level: 6.3-->6.2 megatons (1.59%)
City Level+: 53.15-->53.1 megatons (0.094%)
Tier differences would be as such:
Low 7-B to 7-B: 6.3x-->6.2x
7-B to 7-A: ~15.9-->~16.1x
A more current value is going to be seen as more accurate than an older value unless deliberately wrong. That's how the academic world worked.
Both the old Javascript calculator this page (which the inventor of the City Level guideline used), the guideline's inventor, and our Explosion Yield Calculations page used the formula in this page to determine the power of nuclear explosions at certain levels: https://nuclearweaponarchive.org/Nwfaq/Nfaq5.html
The formula is described as such: r_blast=Y^0.33 * constant_bl, with the yield being represented in kilotons, constant_bl being 0.28 at 20 psi of overpressure (enough to warrant near-100% fatalities). r_blast in the case of City Level's guideline is set at exactly 5 km.
Running it all back, here's what I got.:
5/0.28=17.85714286
0.33√(17.85714286)=6213.976623 kilotons
If we were to round that to the nearest tenth (based on our Attack Potency page) or even the nearest hundredths (which most Calc Group members consider a bare minimum from what I've observed), the value doesn't come anywhere close to the old OBD guideline we grabbed.
I posted this thread here in the Calc Group Discussion forum since it would affect calculations the most and even then... Meh, I've seen smaller differences being applied onto the wiki, specifically the change from 214.35 to 214 J/cm³ for rock pulverization (a measly 0.16% difference!). A 1.6% difference is one order of magnitude bigger than that change. If anything, I think it would make a bigger difference in Small City Level than City Level, basically like this:
Small City Level+: 3.65-->3.6 megatons (1.37%)
City Level: 6.3-->6.2 megatons (1.59%)
City Level+: 53.15-->53.1 megatons (0.094%)
Tier differences would be as such:
Low 7-B to 7-B: 6.3x-->6.2x
7-B to 7-A: ~15.9-->~16.1x
A more current value is going to be seen as more accurate than an older value unless deliberately wrong. That's how the academic world worked.