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| Nuclear Bomb - First H Bomb test |
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Ivy Mike was the first H Bomb test, it was
exploded at 7.15 am local time on November
1st 1952. The mushroom cloud was 8 miles
across and 27 miles high. The canopy was 100
miles wide. Radioactive mud fell out of the
sky followed by heavy rain. 80 million tons
of earth was vaporised. Mike was the first
ever megaton yeild explosion.
Tags : Nuclear Bomb |
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Affichage : 930504
Durée : 138 s |
| Tsar Bomba - King of the Bombs - 57,000,000 Tonnes of TNT |
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The Tsar Bomba
_______________
October 30th 1961 - The Tsar Bomba, King of
the Bombs, Царь-бомба or Big Ivan.
This footage is courtesy of the documentary
"Trinity and Beyond", directed by Peter
Kuran, and other footage is courtesy of the
Discovery channel. The original footage was
from declassified Soviet Archives. The music
used is from The Planets Suite composed by
Gustav Holst. The movement is 'Mars: the
Bringer of War'
Before I get into the details of the test, I
want to clear up something very important.
The title of this video is "Tsar Bomba - King
of the Bombs - 57,000,000 Tonnes of TNT".
Understand now that this test wasn't the
result of a detonation of 57,000,000 Tonnes
of TNT, but rather the nuclear yield
EQUIVALENT of a detonation of 57,000,000
Tonnes of TNT. The weight of the device was
27 tonnes. And coincedentaly, one tonne is
taken as a metric tonne, or 1000 kilograms -
(2200lbs). All units used in physics are
metric. The reason the yield equivalent
system is used is because the energy released
from the explosion of a set amount of TNT is
a constant.
The bomb was designed as a 100 Megaton
device, not a 50 Megaton device. This was due
to its 3 stage design:
fission-fusion-fission. There is fission
initiator that when detonated, begins a
fusion reaction. Then there is a further
fission detonation of a Uranium tamper which
boosts the yield by 50 Megatons. For the
test, the Tsar had its Uranium tamper
replaced with lead to reduce the maximum
yield by half (To 50 Megatons).
The blast yield was equal to that of a blast
of 57,000,000 Tonnes of TNT....or to put that
into context: The weight of 270 Empire State
Buildings worth of TNT. This makes the Tsar
the most powerful nuclear device ever
detonated in history. Think of the
destruction at Hiroshima. The Tsar was 3800
times more powerful than Hiroshima.
The bomb's weight was 27 tonnes, and its
dimensions were: 8 meters (26ft) in length,
and 2 meters (6.5ft) in diameter.
It was air-dropped, from a modified Tupolev
Tu-95 Bear, and it used a nylon parachute to
slow its decent to give the crew time to
escape.
The bomb was dropped from an altitude of
34,500 feet AGL (10,500 meters), and it
detonated a little over three minutes later
at an altitude of 13,100 feet AGL (4,000
meters). In this time: The Tu-95, travelling
at a ground speed of 480kts (552mph, 864kph),
travelled into the safe zone (about 45km from
ground zero) and was therefore 79km away from
the blast.
When the bomb detonated, immediately the
temperature directly below and surrounding
the detonation would have risen to millions
of degrees. The pressure below the blast was
300 pounds per square inch, over three times
the pressure in a car tyre. The light energy
released was so powerful that it was visible
even at 1000km (621 miles), with cloudy
skies. The shockwave was powerful enough to
break windows at even up to 900 kilometres
(560 miles) from the blast. The shockwave was
recorded orbiting the earth 3 times. The
mushroom cloud rose to an altitude of 64,000
meters (210,000 feet) before levelling out.
The thermal energy from the blast was
powerful that it could cause 3rd degree burns
to a human standing 100 km (62 miles) away
from the blast.
The radius of the fireball was 2.3 kilometres
(1.4 miles). The blast radius (area in which
total destruction ensured) was 13km (8
miles).
The most important thing to note is that this
bomb was designed as a 100 Megaton device
(Yield equivalent of 0.1 trillion tonnes of
TNT). If detonated, everything within a 48
kilometer (30 mile) diameter would be
vaporised. Everything within a 195 kilometer
(120 mile) diameter would be incinerated in a
fireball. This would ensure total destruction
of a large city like New York, Paris or
London, as well as devastation on its
outskirts.
Look at my other video to get more
information about the test history.
http://au.youtube.com/watch?v=LOwEcLiK4cA
Tags : Tsar Bomba King of the bombs megaton nuclear hydrogen thermonuclear atomic russia cold war |
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Affichage : 892631
Durée : 179 s |
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