Week 18 has faded into history, but not before you wrote some great captions! A hearty thanks to all the entrants. Astute reader jlbrian7 has done it again! He's uncovered the truth behind this image. The woman in this photo is manually analyzing photographs of charged particles taken in a bubble chamber. He linked to an article from Fermilab, and to a 1971 film about Gargamelle, CERN's largest bubble chamber at the time. The film is well worth a watch. It's aimed at the layman, explaining the design, construction, and operation of bubble chambers. The photo scanning section starts at 14:40. The film has plenty of "1970's-isms", such as referring to the women analyzing the photographs as "scanning girls". The filmmaker even bookend the section with an actual scanned girl - a possibly NSFW (by today's standards) ASCII art printout of a nude pinup model, as printed by a Control Data Corporation supercomputer.

The Funnies:

• "Tabatha, the dungeon master, plots tonight's dungeon and dragons game inside the exploded atom."- LloydTCannonIII
• "CERN, the only place you can watch Netflix on the same table that you eat lunch and plot global domination. Muwahahaha!" - Joshua
  
• "They take Kerbal Space Program very serious at CERN. Here you can see the first interactive real time orbital view display." - haxtormoogle

This week's winner is Jarrett with the following quote:

We're giving away two prizes this week - one to jlbrian7 for his research on this and other CERN images, and one to Jarrett for his winning caption! Congrats to both of you. Enjoy your Logic Pirates From The Hackaday Store!