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

Who Destroyed Three Mile Island?

Sponsored · Ship Features Fearlessly Turn features on and off without deploys. Used by thousands of Ruby developers. →
Avatar for Nickolas Means Nickolas Means
April 17, 2018
Programming
0
1.1k

Who Destroyed Three Mile Island?

(as presented at RailsConf 2018)

Avatar for Nickolas Means

Nickolas Means

April 17, 2018
Tweet

More Decks by Nickolas Means

See All by Nickolas Means
The Magnitude 9.1 Meltdown at Fukushima
Avatar for Nickolas Means nmeans
0
120
Taking the 737 to the MAX!
Avatar for Nickolas Means nmeans
0
110
The Original Skunk Works
Avatar for Nickolas Means nmeans
0
1.8k
Warning: May Be Habit Forming
Avatar for Nickolas Means nmeans
1
200
The Building Built on Stilts
Avatar for Nickolas Means nmeans
1
540
The Original Skunk Works
Avatar for Nickolas Means nmeans
1
780
How to Crash a Plane
Avatar for Nickolas Means nmeans
1
430
How To Code Like A Writer
Avatar for Nickolas Means nmeans
3
3.4k
You Are Not An Impostor
Avatar for Nickolas Means nmeans
11
18k

Other Decks in Programming

See All in Programming
dchart: charts from deck markup
Avatar for Anthony Starks ajstarks
3
970
Kotlin Multiplatform Meetup - Compose Multiplatform 외부 의존성 아키텍처 설계부터 운영까지
Avatar for Suhyeon Kim wisemuji
0
180
インターン生でもAuth0で 認証基盤刷新が出来るのか
Avatar for takumi taku271
0
190
AIで開発はどれくらい加速したのか？AIエージェントによるコード生成を、現場の評価と研究開発の評価の両面からdeep diveしてみる
Avatar for どすこい daisuketakeda
1
920
IFSによる形状設計／デモシーンの魅力 @ 慶應大学SFC
Avatar for がむ gam0022
1
270
ゆくKotlin くるRust
Avatar for TATSUNO Yasuhiro exoego
1
210
AIエージェント、”どう作るか”で差は出るか？ / AI Agents: Does the "How" Make a Difference?
Avatar for r-kagaya rkaga
4
1.9k
AgentCoreとHuman in the Loop
Avatar for Har1101 har1101
5
200
Honoを使ったリモートMCPサーバでAIツールとの連携を加速させる！
Avatar for とすり tosuri13
1
170
フルサイクルエンジニアリングをAI Agentで全自動化したい 〜構想と現在地〜
Avatar for Kaito Minatoya kamina_zzz
0
390
【卒業研究】会話ログ分析によるユーザーごとの関心に応じた話題提案手法
Avatar for MomokoShirakawa momok47
0
180
16年目のピクシブ百科事典を支える最新の技術基盤 / The Modern Tech Stack Powering Pixiv Encyclopedia in its 16th Year
Avatar for ahu ahuglajbclajep
5
940

Featured

See All Featured
Claude Code どこまでも/ Claude Code Everywhere
Avatar for nwiizo nwiizo
61
52k
Testing 201, or: Great Expectations
Avatar for Joseph Mastey jmmastey
46
8k
Jamie Indigo - Trashchat’s Guide to Black Boxes: Technical SEO Tactics for LLMs
Avatar for Tech SEO Connect techseoconnect
PRO
0
53
Code Reviewing Like a Champion
Avatar for maltzj maltzj
527
40k
Reflections from 52 weeks, 52 projects
Avatar for Jefferson Lam jeffersonlam
356
21k
Odyssey Design
Avatar for Ryan Kendrick rkendrick25
PRO
0
470
brightonSEO & MeasureFest 2025 - Christian Goodrich - Winning strategies for Black Friday CRO & PPC
Avatar for Christian Goodrich cargoodrich
3
90
RailsConf 2023
Avatar for Aaron Patterson tenderlove
30
1.3k
Why You Should Never Use an ORM
Avatar for John Nunemaker jnunemaker
PRO
61
9.7k
Fashionably flexible responsive web design (full day workshop)
Avatar for Andy Clarke malarkey
408
66k
What’s in a name? Adding method to the madness
Avatar for The Alliance productmarketing
PRO
24
3.9k
First, design no harm
Avatar for Per Axbom axbom
PRO
2
1.1k

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