Hypothetical Nuclear Explosions

Yusuf

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Nukes don't trigger just like that.
 

drkrn

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Nukes don't trigger just like that.
by any chance if one nuke goes off can it trigger other nukes too ??

y assumption is that high pressure and temperature at immediate vicinity will nullify the protective cover of nukes exposing them to trigger reaction
 

trackwhack

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OK alpha boy. So you fantasize all day about mass murder targeting the US. Congrats, you just caught the NSA's attention.

And congratz Bill, you managed to use a psychopaths rants to preach your political hatred.
 

Alpha1

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New York City

A 150 kiloton bomb constructed by terrorists is detonated in thetheart of Manhattan, at the foot of the Empire State Building. The bomb goes off without warning at noon time. *It's a clear spring
day with a breeze to the east.
Assumptions
(1.) There is no warning. The population has not been evacuated nor sought shelter. Both measures could reduce casualties.
(2.) There is clear weather, with visibility of 9 miles (16 km).
(3.) This is an isolated attack, leaving the rest of the country free to respond.
(4.) A large percentage of the
day time population is
outside - 25%.
(5.) The daytime population density is roughly uniform
and about 125,000 per square mile.
(6.) The shock wave will spread out uniformly in all
directions, being minimally affected by structures.
 

Alpha1

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New York City : 1
second after detonation
Blast Wave

At the end of the first second, the shock wave will have an
overpressure of 20psi. at a distance of four tenths of a mile
from ground zero. Even the most heavily reinforced steel and concrete buildings will be destroyed. These buildings include the Empire State Building,
Madison Square Gardens, Penn Central Railroad Station and the New York Public Library. Most of
the material that comprises these
buildings will remain and pile up to a depth of hundreds of feet in
places, but nothing inside this ring will be recognizable.
Casualties
This circle contains a daytime population of roughly 75,000. There will be no survivors. Those caught outside will be exposed to the full effects of the blast, including severe lung and ear drum damage and exposure to flying debris. Those in the direct line of sight of the blast will be exposed to a thermal pulse in excess of 500cal/sq.cm., causing
instant death. Those inside,though shielded from some of
the blast and thermal effects, will be killed as buildings collapse.
Fireball
The fireball will have a maximum radius of 1,023 feet (0.2 miles).
However, the blast effects will greatly outweigh any direct
thermal effects due to the fireball.
 

Alpha1

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New York City 4 sec after detonation!
Blast Wave



An overpressure of at least (10 psi). extends out for 1 mile.
Concrete and steel reinforced commercial buildings will be destroyed or severely damaged
out to the edge of this ring. The few buildings that remain
standing on the outside edge of this ring will have their interiors destroyed. Though the thermal
pulse is intense enough to ignite most materials, the shock wave will likely extinguish most fires in this ring. Landmarks affected by the blast at this distance include
the Chrysler Building, Rockerfeller Center, the United Nations,
and four hospitals. All of these
buildings will be totally destroyed or so severely damaged that they will be unusable and will have tobe demolished in the clean-up.
Casualties
Most people inside buildings will be killed by flying debris or die as the buildings collapse. Almost all
those outside and not in the direct line of sight of the blast
will receive lung and ear drum injuries to varying degrees.
Those in the direct line of sight will be killed instantly by the
thermal pulse. Fatalities are estimated at 300,000 with many of the remaining 100,000
receiving some form of non-fatal injury. Those people in this ring making use of New York's subway system will escape with few injuries, though they may be
trapped for days by debris blocking entrances and exits
 

Alpha1

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New York City : 6
seconds after detonation
Blast Wave



In the next two seconds the shock wave moves out another half mile, extending the destruction out to a 1.5 mile radius. The overpressure has
dropped to 5 psi. at the outer edge of this ring, which covers
an area of 4 square miles.
Reinforced structures are heavily damaged and unreinforced
residential type structures of brick and wood are destroyed.
Affected structures include Carnegie Hall, the Lincoln Center and the Queensboro Bridge. All the named structures are near the outside edge of this ring. All windows in these structures will be shattered and many interior walls will collapse.
[HR][/HR]
Casualties
This ring contains 500,000 people during the day. About
190,000 will be killed inside buildings by flying debris. This is
roughly half of the assumed indoor population. The other
190,000 will suffer varying degrees of injuries. Most of those
outside and not in the direct line of sight of the explosion will
escape direct injury from the blast, but may be injured by
flying objects. The thermal pulse is still sufficiently intense (40 cal/sq.cm.) to kill anyone in the direct
line of sight; aproximately 30,000. Those people fortunate enough to be under ground will
escape with no injuries. The total
number of injured will be approximately 220,000, leaving roughly 60,000 uninjured.
[HR][/HR]
Thermal Effects
This region contains the most severe fire hazard, since fire
ignition and spread are more likely in partly damaged buildings than in completely flattened
areas. Perhaps 5% of the building would be initially ignited, with fire spread to adjoining buildings highly likely.
Fires will continue to spread for 24 hours at least, ultimately destroying about half the buildings.
 

Alpha1

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New York City : 10
seconds after detonation
Blast Wave



This band extends out to a 2.5mile radius and has an overpressure at the outside edge of 2 psi. Reinforced structures
will receive varying amounts of damage, with those buildings at the edge being almost completely
undamaged. Wood and brick buildings will receive moderate
amounts of initial damage, with the damage becoming less significant at the outside edge of
the ring.
[HR][/HR]
Casualties
An estimated 235,000 people (15%) will be fatalities in this ring, with another 525,000
injured to varying degrees. No injuries will be due directly to the blast overpressure. However, the thermal pulse will still be
sufficient to kill or incapacitate those not indoors or otherwise
protected. The degree of injury from the thermal pulse will
depend greatly on clothing and skin color. Darker clothing and skin will absorb more of the energy, giving a more severe
burn. The material type and thickness will also determine the severity of burns from the thermal pulse.
[HR][/HR]
Thermal Effects
The possibility of delayed damage due to fire is very real in
this band. The energy in the thermal pulse will still be sufficient to start combustible
materials on fire, yet the overpressure and accompanying wind will be less likely to put out these fires. If only a small percentage of the buildings start on fire many may be damaged as the fire spreads out of control
since the capability to fight fires will be non-existent. It may be 24
hours or more before the resources are available to even
begin to fight fires.
 

Alpha1

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New York City : 16
seconds after detonation
Blast Wave



This band extends out for almost 4 miles and has an overpressure
of 1 psi. at its outside edge. At the inner edge there will be light to moderate amounts of damage
to unreinforced buildings of brick and wood. Reinforced
structures and commercial buildings will receive light
damage at most. This band extends out to the site of the former World Trade Center and the Statue of Liberty in the south,
across the East River into Queens in the east, and across the
Hudson River to New Jersey.
[HR][/HR]
Casualties
Though this ring covers an additional 30 square miles, much
of this area is over water or less densely populated areas. The
affected population in this ring is estimated to be 500,000. There
will be almost no fatalities in this ring and only a small percentage, roughly 30,000, will receive
injuries from the thermal pulse. Flashblindness and permanent retinal injuries from the blast will extend out beyond 20 miles.
Since this is a ground level explosion, the number of people
who will be looking in the direction of the blast and have a
clear view, will be much less than if the explosion had taken place several thousand feet above the city.
 

Alpha1

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New York City : Long- Term Fallout Pattern
Radioactive Fallout



A surface explosion will produce much more early fallout than a similarly sized air burst where the fireball never touches the ground. This is because a surface
explosion produces radioactive particles from the ground as well as from the weapon. The early
fallout will drift back to earth on the prevailing wind, creating an elliptical pattern stretching from ground zero out into Long Island. Because the wind will be relatively light, the fallout will be highly concentrated in the area of Manhattan just to the east of the blast. Predicting levels of radiation is difficult and depends on many factors like bomb size,
design, the ground surface and soil type.
Fallout Effects
Dose-rem
Effects
5-20

Possible late effects; possible
chromosomal damage.
20-100
Temporary reduction in white blood cells.
100-200
Mild radiation sickness within a
few hours: vomiting, diarrhea, fatigue; reduction in resistance to infection.
200-300
Serious radiation sickness effects as in 100-200 rem and
hemorrhage;exposure is a Lethal Dose to 10-35% of the population after 30 days (LD
10-35/30).
300-400
Serious radiation sickness; also marrow and intestine destruction; LD 50-70/30.
400-1000
Acute illness, early death; LD 60-95/30.
1000-5000
Acute illness, early death in days;LD100/10.
 

Alpha1

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New York City: Recovery
In this simulated attack we have
assumed that New York is the only city attacked and that there is nothing to prevent state and
federal agencies from
concentrating their resources on bringing aid to the devastated
area. Though the cleanup and decontamination of the most severely damaged and radioactive areas would take years, much immediate aid could be obtained from the outside.
Access
Manhattan is an island connected to the rest of New York and New
Jersey by tunnels and bridges.Many of these access points will
be affected to some degree by the blast. The Lincoln and Queens Midtown Tunnels are both in the 10 psi. ring and would likely be
damaged or blocked by debris. The Queensboro Bridge is in the 5 psi. ring and would likely be
damaged. The remaining tunnels
and bridges all fall in the 2 or 1 psi. rings and might receive
some light damage but would likely be usable. The rescue effort from outside would be further
hampered by people trying to flee the area. In general, help from the outside would be slow in coming.
Medical Effects
With almost 900,000 people injured to various degrees, the
task of caring for the injured will be beyond the ability of the medical system to respond. All but one of Manhattan's large
hospitals lie inside the 5 psi. ring and would be completely destroyed. There aren't enough empty hospital beds in all of New York and New Jersey for even the
most critically injured. The 1 psi. ring alone has an estimated
30,000 burn victims that will need specialized care. The entire country has a total of 3000 beds
in burn centers. In the days to follow it is likely that many of the
injured will die from lack of any medical care.
Utilities
Most of Manhattan will be without utilities (electricity, gas, water, sewage). Out to the edge of the 2 psi. ring, damaged
buildings and the resulting debris will make repairs very
difficult, if not impossible, for
several weeks. It is likely that the stress to the power system will temporarily knock out power to
an area much larger than that directly affected by the blast.
Rescue and Recovery
Transportation of the injured and the ability to bring in the
necessary supplies, people and equipment will be dependent on
the condition of the tunnels and bridges that connect Manhattan to New York and New Jersey. As discussed in Access, these points will be blocked or damaged to varying degrees, except at the far
north and south tips of the island. The main train station lies
in the 10 psi. ring and would be completely destroyed. Once
access is established then true rescue work can begin.
It is likely that many tens of thousands of people would
become homeless. Creation of temporary shelter would be
among the first recovery tasks after all the trapped and injured had been found and cared for.
True recovery for New York would take many years. Some areas would remain dangerously radioactive and would have to be cleaned up at tremendous cost
or be abandoned for many years to come. Even without the
radioactivity it is likely that New York City would never fully
recover to its present status as one of the country's leading
financial and cultural centers.
Distance from
ground zero (mi.)
Population
Fatalities
Injuries
Uninjured
0 - 0.4

75,000
75,000
0
0
0.4 - 1.0
400,000
300,000
100,000
0
1.0 - 1.5
500,000
220,000
220,000
60,000
1.5 - 2.5
1,500,000
235,000
525,000
740,000
2.5 - 4.0
500,000
0
30,000
470,000
Totals
2,975,000
830,000
875,000
1,270,000
 

Alpha1

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New York City:
Summary

While this simulation of a 150 kiloton nuclear explosion
contains many assumptions, and
the uncertainty associated with any of the estimates is large, a number of points stand out:
(1.) 20 square miles of property
destruction ( 2 psi.),
(2.) Eight hundred thousand killed, nine hundred thousand injured,
(3.) Additional damage from post blast fires,
(4.) Coordinated national rescue
and recovery effort
necessary.
 

arnabmit

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What's this? A jehadi wet dream?

2 glaring faults in OP.

1) when its foggy, ships use sensors to navigate ever since the late 20th century.

2) nukes are not nitroglycerine devices. They do not go off in a collision, neither are nukes capable of sympathetic detonation.

Basic research recommended for the author.

San Francisco

An Ohio-class nuclear missile submarine collides with a
freighter in the fog, off the coast of San Francisco, half-way between Alcatraz Island and Fisherman's Wharf. One of the sub's missiles accidentally
detonates in the collision.All 8 MIRVed warheads on the
missile detonate in an explosion that yields 800 kilotons. The
fissionable material contained in the other thermonuclear
warheads on board contributes another megaton, bringing the
overall yield to 1.8 megatons. The heavy fog that contributed to the collision greatly attenuates the thermal pulse. The resulting explosion leaves behind not only
the usual radioactive by-products, but also a large amount of unused fissionable
material.A population density of 15,000
people per square mile, uniformly
distributed. Over 90% of the people are inside. The shock
wave will spread out uniformly.
Assumptions
It is very unlikely that an accident like the one contemplated could actually happen. Great care is taken in the designing of these
weapons systems specifically to prevent an accident from taking place. However, of all nations nuclear forces, the submarines are the most autonomous (have the fewest safety lockouts).
 

Alpha1

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OK alpha boy. So you fantasize all day about mass murder targeting the US. Congrats, you just caught the NSA's attention.
Give them my adress 89/4 link-2 Sarwar Road lahore. Its a hypothetical scenario!
 

Alpha1

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What's this? A jehadi wet dream?
An American source
2 glaring faults in OP.

1) when its foggy, ships use sensors to navigate ever since the late 20th century.

2) nukes are not nitroglycerine devices. They do not go off in a collision, neither are nukes capable of sympathetic detonation.

Basic research recommended for the author.
You forgot to read the Title " HYPOTHETICAL "
 

arnabmit

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Yeah, the author should hypothesize something which is possible.

Else its as good as hypothesizing aliens and magic... pure fiction, that is.

An American source

You forgot to read the Title " HYPOTHETICAL "
 

Alpha1

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Yeah, the author should hypothesize something which is possible.

Else its as good as hypothesizing aliens and magic... pure fiction, that is.
maybe the sensors stoped working?
 

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