Explanation: https://explainxkcd.com/wiki/index.php/2950:_Situation
tl;dr references
These are all infamous disasters now used as case studies for how NOT to do things
- Ocean liner: Titanic
- Airship: Hindenburg
- Reactor: Chernobyl
- Bridge: Tacoma Narrows
- Rocket (alt text): Challenger
More details at the link