Super Comet – High velocity dinosaur-killer sized comet impact
Thursday, March 20th, 2008[巨型彗星：撞击之后].Science.Channel.Super.Comet.After.The.Impact.WS.DSR.XviD-K4RM4.avi (eMule P2P filesharing ED2K link to download the entire discovery / Science channel show – TV-Rip)
I got an estimate from the Earth Impact Effects Program for this show. The show said that the comet’s velocity was 135,000+mph and it was 8 miles in size and its impact produced a 60 mile transient crater, 100 mile final crater, and at the end, the pool of lava was 125 miles and had an instant-incineration radius of 1000 miles (this computation had incineration out to about 1100 miles). I think the trumpet judgments in revelation chapter 8 (Christian Holy Bible) may be a similar impact of a smaller comet fragmented in two large chunks (2nd and 3rd trumpet) and the 3rd chunk shattered in tiny pieces (first trumpet). I’m not firm on that belief though. Just the best fit for a fairly ‘natural’ divine judgment phase of the tribulation.
Impact Effects
Match the Science Channel Super Comet Show
Robert Marcus, H. Jay Melosh, and Gareth Collins
Please note: the results below are estimates based on current (limited) understanding of the impact process and come with large uncertainties; they should be used with caution, particularly in the case of peculiar input parameters. All values are given to three significant figures but this does not reflect the precision of the estimate. For more information about the uncertainty associated with our calculations and a full discussion of this program, please refer to this article
- Distance from Impact: 1625.00 km = 1009.12 miles
- Projectile Diameter: 12875.00 m = 42230.00 ft = 8.00 miles
- Projectile Density: 1000 kg/m3
- Impact Velocity: 60.50 km/s = 37.57 miles/s
- Impact Angle: 60 degrees
- Target Density: 1000 kg/m3
- Target Type: Liquid Water of depth 300.00 meters, over typical rock.
Your Inputs:
- Energy before atmospheric entry: 2.05 x 1024 Joules = 4.89 x 108 MegaTons TNT
- The average interval between impacts of this size somewhere on Earth during the last 4 billion years is 5.4 x 108years
Energy:
- 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.
Major Global Changes:
- What does this mean?
- The crater opened in the water has a diameter of 160 km = 99.7 miles
- For the crater formed in the seafloor:
- Transient Crater Diameter: 96.6 km = 60 miles
- Transient Crater Depth: 34.2 km = 21.2 miles
- Final Crater Diameter: 176 km = 109 miles
- Final Crater Depth: 1.4 km = 0.871 miles
Crater Dimensions:
- What does this mean?
- Time for maximum radiation: 4.2 seconds after impact
- Visible fireball radius: 47.5 km = 29.5 miles
- The fireball appears 6.65 times larger than the sun
- Thermal Exposure: 3.49 x 107 Joules/m2
- Duration of Irradiation: 3300 seconds
- Radiant flux (relative to the sun): 10.6
- Effects of Thermal Radiation:
- Clothing ignites
Much of the body suffers third degree burns
Newspaper ignites
Plywood flames
Deciduous trees ignite
Grass ignites
Thermal Radiation:
- What does this mean?The major seismic shaking will arrive at approximately 325 seconds.
- Richter Scale Magnitude: 10.4 (This is greater than any earthquake in recorded history)
- Mercalli Scale Intensity at a distance of 1625 km:
- IV. Felt indoors by many, outdoors by few during the day. At night, some awakened. Dishes, windows, doors disturbed; walls make cracking sound. Sensation like heavy truck striking building. Standing motor cars rocked noticeably.
V. Felt by nearly everyone; many awakened. Some dishes, windows broken. Unstable objects overturned. Pendulum clocks may stop.
Seismic Effects:
- What does this mean?The ejecta will arrive approximately 666 seconds after the impact.
- Average Ejecta Thickness: 18.1 cm = 7.13 inches
- Mean Fragment Diameter: 748 micrometers = 29.5 1/1000 of an inch
Ejecta:
- What does this mean?The air blast will arrive at approximately 4920 seconds.
- Peak Overpressure: 149000 Pa = 1.49 bars = 21.2 psi
- Max wind velocity: 233 m/s = 521 mph
- Sound Intensity: 103 dB (May cause ear pain)
- Damage Description:
- Multistory wall-bearing buildings will collapse.
Wood frame buildings will almost completely collapse.
Highway truss bridges will collapse.
Glass windows will shatter.
Up to 90 percent of trees blown down; remainder stripped of branches and leaves.
Air Blast:
Tell me more…Click here for a pdf document that details the observations, assumptions, and equations upon which this program is based. It describes our approach to quantifying the important impact processes that might affect the people, buildings, and landscape in the vicinity of an impact event and discusses the uncertainty in our predictions. The processes included are: atmospheric entry, impact crater formation, fireball expansion and thermal radiation, ejecta deposition, seismic shaking, and the propagation of the atmospheric blast wave.
Earth Impact Effects Program Copyright 2004, Robert Marcus, H.J. Melosh, and G.S. Collins
These results come with ABSOLUTELY NO WARRANTY
Impact Effects
Mini 2km comet-fragment
with energy equalling 125% of that of 200,000 5-megaton nukes at recommended velocity (50 km/s instead of 60.5) and slightly shallower 45 angle into deeper ocean – 2nd trumpet)
Robert Marcus, H. Jay Melosh, and Gareth Collins
Please note: the results below are estimates based on current (limited) understanding of the impact process and come with large uncertainties; they should be used with caution, particularly in the case of peculiar input parameters. All values are given to three significant figures but this does not reflect the precision of the estimate. For more information about the uncertainty associated with our calculations and a full discussion of this program, please refer to this article
- Distance from Impact: 400.00 km = 248.40 miles
- Projectile Diameter: 2000.00 m = 6560.00 ft = 1.24 miles
- Projectile Density: 1000 kg/m3
- Impact Velocity: 50.00 km/s = 31.05 miles/s
- Impact Angle: 45 degrees
- Target Density: 1000 kg/m3
- Target Type: Liquid Water of depth 1000.00 meters, over typical rock.
Your Inputs:
- Energy before atmospheric entry: 5.24 x 1021 Joules = 1.25 x 106 MegaTons TNT
- The average interval between impacts of this size somewhere on Earth during the last 4 billion years is 5.4 x 106years
Energy:
- 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.
Major Global Changes:
- What does this mean?
- The crater opened in the water has a diameter of 32.2 km = 20 miles
- For the crater formed in the seafloor:
- Transient Crater Diameter: 13.1 km = 8.11 miles
- Transient Crater Depth: 4.62 km = 2.87 miles
- Final Crater Diameter: 18.3 km = 11.4 miles
- Final Crater Depth: 0.71 km = 0.441 miles
Crater Dimensions:
- What does this mean?
- Time for maximum radiation: 0.697 seconds after impact
- Visible fireball radius: 22 km = 13.6 miles
- The fireball appears 12.5 times larger than the sun
- Thermal Exposure: 8.39 x 106 Joules/m2
- Duration of Irradiation: 448 seconds
- Radiant flux (relative to the sun): 18.7 (Flux from a burner on full at a distance of 10 cm)
- Effects of Thermal Radiation:
- Much of the body suffers third degree burns
Newspaper ignites
Plywood flames
Deciduous trees ignite
Grass ignites
Thermal Radiation:
- What does this mean?The major seismic shaking will arrive at approximately 80 seconds.
- Richter Scale Magnitude: 8.1
- Mercalli Scale Intensity at a distance of 400 km:
- VI. Felt by all, many frightened. Some heavy furniture moved; a few instances of fallen plaster. Damage slight.
VII. Damage negligible in buildings of good design and construction; slight to moderate in well-built ordinary structures; considerable damage in poorly built or badly designed structures; some chimneys broken.
Seismic Effects:
- What does this mean?The ejecta will arrive approximately 296 seconds after the impact.
- At your position the ejecta arrives in scattered fragments
- Average Ejecta Thickness: 4.05 mm = 0.159 inches
- Mean Fragment Diameter: 2.99 mm = 0.118 inches
Ejecta:
- What does this mean?The air blast will arrive at approximately 1210 seconds.
- Peak Overpressure: 46000 Pa = 0.46 bars = 6.53 psi
- Max wind velocity: 91.8 m/s = 205 mph
- Sound Intensity: 93 dB (May cause ear pain)
- Damage Description:
- Multistory wall-bearing buildings will collapse.
Wood frame buildings will almost completely collapse.
Glass windows will shatter.
Up to 90 percent of trees blown down; remainder stripped of branches and leaves.
Air Blast:
Tell me more…Click here for a pdf document that details the observations, assumptions, and equations upon which this program is based. It describes our approach to quantifying the important impact processes that might affect the people, buildings, and landscape in the vicinity of an impact event and discusses the uncertainty in our predictions. The processes included are: atmospheric entry, impact crater formation, fireball expansion and thermal radiation, ejecta deposition, seismic shaking, and the propagation of the atmospheric blast wave.
Earth Impact Effects Program Copyright 2004, Robert Marcus, H.J. Melosh, and G.S. Collins
These results come with ABSOLUTELY NO WARRANTY
