Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Who Destroyed Three Mile Island?

Avatar for Nickolas Means Nickolas Means
April 17, 2018
Programming
1.1k
0

Who Destroyed Three Mile Island?

(as presented at RailsConf 2018)

Avatar for Nickolas Means

Nickolas Means

April 17, 2018

More Decks by Nickolas Means

See All by Nickolas Means
The Magnitude 9.1 Meltdown at Fukushima
Avatar for Nickolas Means nmeans
0
140
Taking the 737 to the MAX!
Avatar for Nickolas Means nmeans
0
130
The Original Skunk Works
Avatar for Nickolas Means nmeans
0
1.9k
Warning: May Be Habit Forming
Avatar for Nickolas Means nmeans
1
220
The Building Built on Stilts
Avatar for Nickolas Means nmeans
1
550
The Original Skunk Works
Avatar for Nickolas Means nmeans
1
810
How to Crash a Plane
Avatar for Nickolas Means nmeans
1
450
How To Code Like A Writer
Avatar for Nickolas Means nmeans
3
3.5k
You Are Not An Impostor
Avatar for Nickolas Means nmeans
11
18k

Other Decks in Programming

See All in Programming
TSKaigi Night Talks 2026_TypeScriptでサプライチェーンの整合性を型に閉じ込める
Avatar for ギークプラス ソフトウェア事業部 geekplus_tech
0
400
さぁV100、メモリをお食べ・・・
Avatar for nilpe nilpe
0
150
Agentic UI
Avatar for Manfred Steyer manfredsteyer
PRO
0
190
AI時代のUIはどこへ行く？その2！
Avatar for Yusuke Wada yusukebe
22
7.5k
ADKを使って簡単にAIエージェントを作ってみよう
Avatar for K1mu21 k1mu21
0
280
Hunting Vulnerabilities in Symfony with LLMs
Avatar for Vincent Amstoutz vinceamstoutz
0
560
Creating Composable Callables in Contemporary C++
Avatar for Björn Fahller rollbear
0
160
コンテキストの使い捨てをやめる — ビジネスルール駆動開発と miko —
Avatar for ioki ioki
0
230
Javaの型とAI時代に型が大事な理由 / java types and type in AI era
Avatar for Naoki Kishida kishida
2
150
気づいたらRubyで100作品 ー クリエイティブコーディングが生活の一部になるまで / 100 Ruby Sketches Later: How Creative Coding Became Part of My Life
Avatar for chobishiba chobishiba
3
610
例外の正しい扱い方 そのエラー try-catchして大丈夫？
Avatar for Watanabe Jin jinwatanabe
0
280
肥大化するレガシーコードに立ち向かうためのインターフェース分離と依存の逆転 / JJUG CCC 2026 Spring
Avatar for hirokuni-maeta hirokunimaeta
0
610

Featured

See All Featured
HDC tutorial
Avatar for Michiel Stock michielstock
2
720
The #1 spot is gone: here's how to win anyway
Avatar for Tamara Novitovic tamaranovitovic
3
1.1k
How to train your dragon (web standard)
Avatar for Monica Dinculescu notwaldorf
97
6.7k
A Soul's Torment
Avatar for Nat Ma seathinner
6
3k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
Avatar for Eileen M. Uchitelle eileencodes
141
35k
How to Get Subject Matter Experts Bought In and Actively Contributing to SEO & PR Initiatives.
Avatar for Liv Day livdayseo
0
140
Deep Space Network (abreviated)
Avatar for Tony Rice tonyrice
0
210
[RailsConf 2023] Rails as a piece of cake
Avatar for Vladimir Dementyev palkan
59
6.7k
Leadership Guide Workshop - DevTernity 2021
Avatar for David Neal reverentgeek
1
310
The Straight Up "How To Draw Better" Workshop
Avatar for Dennis Kardys denniskardys
239
140k
How Fast Is Fast Enough? [PerfNow 2025]
Avatar for Tammy Everts tammyeverts
3
620
Game over? The fight for quality and originality in the time of robots
Avatar for Wayne Barker wayneb77
1
200

Transcript

  1. Who Destroyed Nickolas Means @nmeans

  2. Who Destroyed Nickolas Means @nmeans

  3. @nmeans

  4. @nmeans • #WhoDestroyedTMI @nmeans

  5. @nmeans

  6. @nmeans

  7. @nmeans

  8. @nmeans

  9. @nmeans

  10. @nmeans

  11. @nmeans

  12. @nmeans

  13. Three Mile Island Nuclear Generating Station Londonderry Township, Pennsylvania @nmeans

  14. Three Mile Island Harrisburg, Pennsylvania @nmeans • #WhoDestroyedTMI @nmeans TMI

    Unit 2 906 MWe Babcock and Wilcox PWR

  15. @nmeans Bill Zewe Fred Schiemann Ed Frederick Craig Faust

  16. Condensate Polishers @nmeans

  17. Three Mile Island Unit 2 @nmeans

  18. Three Mile Island Unit 2 @nmeans

  19. Three Mile Island Unit 2 @nmeans

  20. Three Mile Island Unit 2 @nmeans

  21. Three Mile Island Unit 2 @nmeans

  22. Three Mile Island Unit 2 @nmeans ❌

  23. Three Mile Island Unit 2 @nmeans ❌

  24. Three Mile Island Unit 2 @nmeans ❌

  25. @nmeans TMI Unit 2 Control Room

  26. Three Mile Island Unit 2 Three Mile Island Unit 2

    @nmeans

  27. Pressurizer @nmeans Connection to Primary Cooling Loop Heating Element Water

    Spray 1. Regulates System Pressure 2. Measures Water Level 3. Absorbs Pressure Shocks

  28. Three Mile Island Unit 2 Three Mile Island Unit 2

    @nmeans

  29. Three Mile Island Unit 2 Three Mile Island Unit 2

    @nmeans

  30. Three Mile Island Unit 2 @nmeans

  31. Three Mile Island Unit 2 @nmeans

  32. @nmeans

  33. Three Mile Island Unit 2 @nmeans

  34. Three Mile Island Unit 2 Three Mile Island Unit 2

    @nmeans

  35. @nmeans

  36. Three Mile Island Unit 2 Three Mile Island Unit 2

    @nmeans

  37. @nmeans

  38. Three Mile Island Unit 2 Three Mile Island Unit 2

    @nmeans

  39. Three Mile Island Unit 2 Three Mile Island Unit 2

    @nmeans

  40. Three Mile Island Unit 2 @nmeans

  41. @nmeans

  42. Three Mile Island Unit 2 @nmeans ❌ ❌

  43. @nmeans

  44. Fuel Rod Assembly @nmeans

  45. Gary Miller George Kunder @nmeans

  46. Three Mile Island Unit 2 @nmeans ❌

  47. Three Mile Island Unit 2 @nmeans ❌ ❌ ❌

  48. @nmeans

  49. @nmeans

  50. @nmeans

  51. Final Core State @nmeans

  52. @nmeans

  53. Three Mile Island Today @nmeans

  54. @nmeans

  55. @nmeans

  56. @nmeans Hindsight Bias

  57. @nmeans Outcome Bias

  58. @nmeans

  59. Three Mile Island Unit 2 @nmeans

  60. Three Mile Island Unit 2 @nmeans

  61. Pressurizer @nmeans Connection to Primary Cooling Loop Heating Element Water

    Spray 1. Maintains System Pressure 2. Measures Water Level 3. Absorbs Pressure Shocks

  62. @nmeans

  63. Heat at 100% 12 MWth 2,841 MWth Heat at Shutdown

    (6.5%) 0.78 MWth 185 MWth @nmeans

  64. Three Mile Island Unit 2 @nmeans

  65. Three Mile Island Unit 2 Three Mile Island Unit 2

    @nmeans

  66. @nmeans

  67. Three Mile Island Unit 2 @nmeans • #WhoDestroyedTMI Three Mile

    Island Unit 2 @nmeans

  68. @nmeans

  69. @nmeans

  70. @nmeans

  71. @nmeans

  72. @nmeans Human error is never the cause.

  73. @nmeans Ask what is responsible, not who.

  74. @nmeans Understand why it made sense.

  75. @nmeans Seek forward accountability, not backward.

  76. @nmeans Always look for the second story.

  77. Who Destroyed Nickolas Means @nmeans

  78. Who What Destroyed Nickolas Means @nmeans

  79. @nmeans

  80. @nmeans

  81. Who What Destroyed Nickolas Means @nmeans