lindahall:

Plate 9:  Individuals with normal vision or tritanopia will see the number 56. Individuals with protanopia, deuteranopia, or achromotopsia will see no numbers.

Plate 19: Individuals with normal vision or tritanopia will see the number 5. Individuals with protanopia or deuteranopia will see the number 2. Individuals with achromotopsia will see no numbers.

Plate 34. Individuals with normal vision, tritanopia, or achromotopsia will see no numbers. Individuals with protanopia or deuteranopia will see the number 73.

From Tests for Colorblindness, Shinobu Ishihara, 1940. These plates will not be an accurate test because of fading colors and variations with monitors.

(via scientificillustration)


magictransistor:

Sir Isaac Newton, Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), c. 1687.

(via cfmc)


yorkeantiquetextiles:


Japanese Fireman’s Coat with Matoi (Fire Banner). 19th century, Japan.

yorkeantiquetextiles:

Japanese Fireman’s Coat with Matoi (Fire Banner). 19th century, Japan.

(via cfmc)


(Source: japanesemetal)


humanoidhistory:


Space Age magazine cover, March 1952.

humanoidhistory:

Space Age magazine cover, March 1952.

(via scientificillustration)


jordanelse:

Astronomicum Caesareum Illustraions, 1540. Bibliothèque nationale de France.

 

(via scientificillustration)


Southcliffe

Southcliffe


Barry Sisters : « Zug Es Meir Noch Amool »

(Source: youtube.com)


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