Image of crystals

Photo by Jason D on Unsplash

Icons of nature’s design

They are “the cos­mi­cal­ly charged cor­ner­stones upon which the great pyra­mids of Egypt were built.” They are “nat­ur­al super­con­duc­tors through which a uni­verse of enlight­en­ment passed to the lost con­ti­nent of Atlantis.” They are crys­tals, and if you know how to use them they can make you healthy, wealthy, and wise.

Image of the Large Hadron Collider

The Large Hadron Collider in Europe • Photo by Luigi Selmi (CC BY 2.0)

Image of birdwatchers

Photo by Ryan Hagerty (Public Domain)

Image of brightly colored human face

Photo by h heyerlein on Unsplash

Image of a pair of gulls

Photo by Linnaea Mallette (Public Domain)

Image of photo album

Photo by Laura Fuhrman on Unsplash

Elusive memories

If I remem­ber right­ly, it was back about 1963 that I first got inter­est­ed in the bio­chem­istry of mem­o­ry. My curios­i­ty was sparked by some remark­able exper­i­ments with flat­worms — tiny, extreme­ly prim­i­tive ani­mals with rudi­men­ta­ry brains and ner­vous systems.

Image of the moon rising over hill

Photo by Joel Miller on Unsplash

Image of Pierre and Marie Curie

Pierre and Marie Curie in their laboratory

Image of nuthatch on tree

White-breasted nuthatch • Andy Reago & Chrissy McClarren (CC BY 2.0)

Image of a gravitational lens

SDSS J1038+4849, a gravitational lens imaged in 2015 • NASA/ESA (Public Domain)