Particles.

Yesterday I discovered particles of iron oxide in my super-pure, analytical grade, very expensive carbon dioxide stream.

I might also have discovered that silica gets dissolved in supercritcal carbon dioxide.

Verrrry interesting!

Polymers

Today I discovered that some polymers can dissolve in supercritical carbon dioxide. It's recorded in the literature. What drove this discovery is the discovery of a layer of trapped  polymer inside my system, where no polymer should be. It causes plugging of the chromatographic flow path.

Clusters

Yesterday I discovered that LabVIEW can easly form clusters of clusters, and just as easily unbundle by name as for regular clusters. This is good, because it means one can pack even  more data into a cluster and still keep it organized.