Newton's corpuscular theory of light. Senior physics: Wave - particle duality. (1984)

Le Chatelier's principle. Reaction of hydrogen and iodine. Senior Chemistry: Equilibrium (1984)

Dynamic chemical equilibrium. Senior Chemistry: Equilibrium (1984)

There is an estimate of how big a star would be if it "dies". When a star like the Sun exhausts its hydrogen fuel, it will undergo a series of evolutionary changes that can ultimately lead to the collapse of its core. At a certain limit (The Chandrasekhar Limit) the star is so heavy that matter collapses into a black hole (with a radius of zero!). The Birth and Death of the Sun. Stellar Evolution and Subatomic Energy by George Gamow

A sketch by Leonardo Da Vinci of the double helix structure of DNA, archival print

“The burning of the body by O” in “Fourteen Weeks in Chemistry” by J. D. Steele. Internet Archive.

"Our planet is only a grain of dust floating in the immensity of Heaven." Astronomy for Amateurs by Camille Flammarion

"DNA is a metamorphic scriptorium, where life transcribes, by chance, whatever life has so far learned about immortality." -- from "The Xenotext (Book 1)" by Christian Bök