# concepts

The pages in this folder. Generated — do not edit.

- [Astronomical Seeing](astronomical-seeing.md) — The blurring of star images caused by atmospheric turbulence, measured in arcseconds where a lower value means a sharper image.
- [Cryptobiosis](cryptobiosis.md) — A dormant metabolic state that lets an organism endure extreme environmental stress; when driven specifically by the loss of water, it is called anhydrobiosis.
- [Microplastic Accumulation in Alpine Tarns](microplastic-accumulation-in-alpine-tarns.md) — A preprint's survey finding that microplastic particle counts rose over a single melt season across three high-altitude tarns, highest in Black Tarn.
