Hannahhaifisch - HH

26.3472939, 29.527707

Spinbox by Dave Whyte | Tumblr

Tetrahedrite with Siderite

Locality:  Saint-Pierre-de-Mesage, Vizille, Rhone-Alpes, France

David Spriggs, Dark Matter. 

Max Brückner, from his book Vielecke und Vielfläche, 1900. Leipzig, Germany. Via Bulatov.

Brückner extended the stellation theory beyond regular forms, and identified ten stellations of the icosahedron, including the complete stellation. wiki

Robot uses Human to create Art - Dragan Ilic

Photograph of the May 1919 solar eclipse captured by Arthur Eddington, which proved Einstein’s theory of general relativity. 

Credit: SSPL/Getty Images

Geometric Animations / 170402