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# Practical Applications Of Quantum Mechanics

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## Chris Thomas

on 1 November 2016

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#### Transcript of Practical Applications Of Quantum Mechanics

The Battleship USS Arkansas
1944
1 & 2: Problem Solved
Practical Applications
Of Quantum Mechanics

Or how I leaned to stop worrying and love the bomb
BB-33
27,243 tons
562 feet
20.5 knots
12 x 12" guns
16 x 5" guns
8 x 3" AA guns
11" armor belt
1946
T
Race For The Bomb
1938 - Fission Discovered
Otto Hahn & Fritz Strassman
Free University of Berlin
1945 - Trinity
USA - 1945
USSR - 1949
UK - 1952
France - 1960
China - 1964
India - 1974
Israel - 1979*
Pakistan - 1998
N. Korea - 2006
The Fission Equation
1. Fissionable Material
2. In sufficient quantity
3. In a super-critical configuration
4. That doesn't destroy itself
5. Delivered sub-critically
6. No second chances
The Problem
Little Boy
August 6, 1945
Weight: 9,700 lbs
Pit: 140 lbs U-235
Yield: 15 kt
Fat Man
August 9, 1945
Weight: 10.300 lbs
Pit: 14 lbs PU-249
Yield: 21 kt
A Simple Question Of Weight Ratios
The Rocket Equation
On Time, On Target
The K25 Uranium Diffusion Plant
Shown to scale at Virginia Tech
"Spot the Missile Complex"
Formula for Conflict
Baker Shot
21 kt
(1957) Thor: 3400 yards
(1954) Jupiter: 1641 yards
(1959) Titan I: 1700+ yards
(1962) Titan II: 1,400 yards
(1962) Minuteman I: 1215 yards
(1965) Minuteman II: 600 yards
(1970) Minuteman III: 200 yards
(1986) Peacekeeper MX: 110 yards

The Inverse Square Law
Size Matters
(1951) W4: 6,500 lbs, 31 kt, 209lb/kt
(1951) W5: 2,405 lbs, 120 kt, 20lb/kt
(1958) W27: 2,800 lbs, 2Mt, 1.4 lb/kt
(1959) W28: 1,500 lbs, 1.45Mt, 1.0lb/kt
(1963) W38: 3,080 lbs, 3.7Mt, 0.82lb/kt
(1963) W56: 600 lbs, 1.2 Mt, 0.5lb/kt,
M4 - 21kt
21 kt - Downtown DC
Fireball
20 psi overpressure
5 psi overpressure
3rd Degree Burns
15Mt - Downtown DC
Fireball
20 psi overpressure
5 psi overpressure
3rd Degree Burns
Castle Bravo
15Mt
50Mt - Downtown DC