For those years when you don't sleep.

jtotheizzoe:

Over a century after being founded as a gunpowder mill in 1802, chemical company DuPont began publishing a promotional magazine that continued throughout the 20th century. The company that gave us nylon, teflon and kevlar also gave us a collection of truly amazing science art via these magazine covers.

So many, many more at this link, including this gem:

Better living through chemistry … and art.

Want more 20th-century science nostalgia? Check out this gallery of awesome pocket protectors.

(via All My Eyes)