#sprectra

[nemfrog]

Ultraviolet spark spectrum of zirconium. Ultraviolette Funkenspectra der Elemente. 1898.

Internet Archive

[harmonytre]

Random Reblog Wednesday

Another old deviantart drawing! Here’s what I wrote:

Now here's me and Noah. We're dressed as Mittens (Espeon-form) and Bolt from Disney's "Bolt. Uh, yeah we spray-painted ourselves. Hehe . . .

Date: 10-31-17

[nemfrog]

“Spectra of various sources of light.” Astronomy by observation. c. 1886. Frontispiece.