Week 21 of the Caption CERN Contest is now history. It's been a great week of captions, so as always a huge thank you goes out to everyone who entered. We still have no idea what these two CERN scientists were working on. lenses, switches, and a giant glass screen which could have anything behind it. It's a tough one. But what we lack in facts, you all made up for in humor.

The Funnies:

• "I spy with my quantum eye, something with a 75% probability of being spin up!"- bbarrett90
• "Preping the Voight-Kampff set up, they have learnt from their unfortunately predecessors that a mirrored bullet proof glass between them and the upset replicant subject might be a good idea." - K.C. Lee
• "Mary and Steve swore that they were going to be the ones to win this year's where's Waldo competition, unfortunately they lost to the guys in the next lab with an SEM." - TrollinTeemo
  

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

Lou's bio is "Test engineer with Mechanical background who likes to tear things apart". We be he's going to enjoy using his new Teensy 3.1 from The Hackaday Store to build something new with all the parts he has left over from teardowns!