Category: reblog

nemfrogfilms:

Interference of photons. 1959. Physical Science Study Committee.

Internet Archive

docresa:

nemfrog:

“Recomposition of white light by means of a second prism.” The chemistry of the sun. 1887 ed. Internet Archive

theweirdwideweb:

time will cc̴̣̮͎̫̪̽͊̽̓͘ǫ̸̡̪͕͎̼̝̣̠̯̓͒̃͂̍ļ̶͖̦̮̙̗̖͇̝̞̒̒͗̈́͒̉l̴̺̊́̉a̴͎͉̦̓p̷̡̺̞̿̓̏͆͜s̵͚̳̼̖̮̰̮̤͘e̴̺̳̺̠̬͈̲͋͆̌̂

nemfrogfilms:

The flow around a sharp edge. Vorticity. 1961. Educational Service. 

Internet Archive

humanoidhistory:

The rings of Saturn, observed by the Cassini space probe on May 3, 2005.

(NASA)

humanoidhistory:

The rings of Saturn, observed by the Cassini space probe on May 3, 2005.

(NASA)

nemfrog:

Star magnitudes. An introduction to astronomy. 1868.  Internet Archive

nemfrog:

Star magnitudes. An introduction to astronomy. 1868.  Internet Archive

nemfrog:

Planets compared in size to the sun. Elementary Science by Grades, Book Six. 1920