Originally posted by Johnny
I think that there are enough nukes to blast the Earth out of orbit several times, no need to build something that big.
quote: Your Inputs:
Distance from Impact: 1000.00 km = 621.00 miles
Projectile Diameter: 50000.00 m = 164000.00 ft = 31.05 miles
Projectile Density: 1500 kg/m3
Impact Velocity: 50.00 km/s = 31.05 miles/s
Impact Angle: 60 degrees
Target Density: 2750 kg/m3
Target Type: Crystalline Rock
Energy:
Energy before atmospheric entry: 1.23e+26 Joules = 2.93e+10 MegaTons TNT
Major Global Changes:
The Earth is not strongly disturbed by the impact and loses negligible mass.
The impact does not make a noticeable change in the Earth's rotation period or the tilt of its axis.
The impact does not shift the Earth's orbit noticeably.
[size=3]And that's with impact energy equal to 30 billion megatons.[/size]
Crater Dimensions:
Crater shape is normal in spite of atmospheric crushing; fragments are not significantly dispersed.
Transient Crater Diameter: 296 km = 184 miles
Transient Crater Depth: 105 km = 65 miles
Final Crater Diameter: 623 km = 387 miles
Final Crater Depth: 2.05 km = 1.28 miles
The crater formed is a complex crater.
The volume of the target melted or vaporized is 1.09e+06 km3 = 262000 miles3
Roughly half the melt remains in the crater , where its average thickness is 15.9 km = 9.86 miles
Thermal Radiation:
Time for maximum radiation: 19.9 seconds after impact
Visible fireball radius: 915 km = 568 miles
The fireball appears 208 times larger than the sun
Thermal Exposure: 5.27e+9 Joules/m2
Duration of Irradiation: 1290 seconds
Radiant flux (relative to the sun): 4080
Effects of Thermal Radiation:
Clothing ignites
Much of the body suffers third degree burns
Newspaper ignites
Plywood flames
Deciduous trees ignite
Grass ignites
Seismic Effects:
The major seismic shaking will arrive at approximately 200 seconds.
Richter Scale Magnitude: 11.6 (This is greater than any earthquake in recorded history)
Ejecta:
The ejecta will arrive approximately 494 seconds after the impact.
Average Ejecta Thickness: 79.7 m = 262 ft
Mean Fragment Diameter: 9.97 mm = 0.393 inches
Air Blast:
The air blast will arrive at approximately 3030 seconds.
Peak Overpressure: 8.84e+06 Pa = 88.4 bars = 1260 psi
Max wind velocity: 2380 m/s = 5320 mph
Sound Intensity: 139 dB (Dangerously Loud)
Damage Description:
Multistory wall-bearing buildings will collapse.
Wood frame buildings will almost completely collapse.
Multistory steel-framed office-type buildings will suffer extreme frame distortion, incipient collapse.
Highway truss bridges will collapse.
Highway girder bridges will collapse.
Glass windows will shatter.
Cars and trucks will be largely displaced and grossly distorted and will require rebuilding before use.
Up to 90 percent of trees blown down; remainder stripped of branches and leaves.
