Investigated the following writeups by pealco and found that without exception they were copied from Britannica. Downvoted them and then nuked them.

If anyone's looking for a good topic to node about, here are a few for you to choose from:

• Mikhail Tsvet
• chromatography
• CP violation
• parity
• Tsung-Dao Lee
• Chen Ning Yang
• Hermann Weyl
• James Clerk Maxwell
• gauge theory
• quantum field theory
• Quantum Chromodynamics
• turing test
• Marduk
• Praesepe
• New General Catalogue of Nebulae and Clusters of Stars
• Esagila
• EA
• iodized salt
• atomic radius
• holography

There are still dozens left to go, but hey, this is a good day's work.