Last seen in:
- New York Times - Feb 19 2023
- Thomas Joseph - King Feature Syndicate - Jan 29 2022
- The Times - Concise - Times Concise No 8418
- The Times - Concise - Times Concise Jumbo No 1236
- USA Today - Oct 24 2016
- Newsday.com - Jul 19 2015
- Newsday.com - Dec 14 2014
- Newsday.com - Dec 5 2014
- Universal - Oct 17 2014
- Newsday.com - May 19 2013
Related Clues:
- Atomic bits
- Quark/antiquark particles
- Physics particles
- Unstable particles
- Teeny particles in physics
- Short-lived particles
- Strongly interacting particles
- Catalyzing subatomic particles
- Elementary particles
- Accelerator particles
- Short-lived subatomic particles
- Unstable leptons
- Interacting particles
- Lepton family particles
- Certain subatomic particles