В КРАК С ВРЕМЕТО
scienceisstrange:

yes indeed

scienceisstrange:

yes indeed

scienceisstrange:

reference guide

scienceisstrange:

reference guide

rudygodinez:

Prof. Dr, Max Bruckner, Four Plates from the Book “Vielecke und Vielflache”, (1900)

 Regular convex polyhedra, frequently referenced as “Platonic” solids, are featured prominently in the philosophy of Plato, who spoke about them, rather intuitively, in association to the four classical elements (earth, wind, fire, water… plus ether). However, it was Euclid who actually provided a mathematical description of each solid and found the ratio of the diameter of the circumscribed sphere to the length of the edge and argued that there are no further convex polyhedra than those 5: tetrahedron, hexahedron (also known as the cube), octahedron, dodecahedron and icosahedron.

scienceisstrange:

peacock
scavengedluxury:

Why does no one visit me? (ghost doorbell). Loughborough, April 2014.

scavengedluxury:

Why does no one visit me? (ghost doorbell). Loughborough, April 2014.

dbvictoria:

A Janitor Secretly Worked On This For 7 Years. No One Knew Til Now… And It’s Baffling Everyone.

Over 30 years ago, a man spent 7 years hand-drawing the most complex, unbelievable and probably unsolvable maze I’ve ever seen. His daughter recently posted the following photos on Twitter and, needless to say, the entire Internet is exploding with questions about her dad.

So who is the man behind it? A professor? A mathematician? A wizard? No, no, and no. The correct answer is… the university janitor.

ppsh-41:

Two soldiers of Freiwilligen-Legion Norwegen operating a Maschinengewehr 34 while entrenched.

ppsh-41:

Two soldiers of Freiwilligen-Legion Norwegen operating a Maschinengewehr 34 while entrenched.

OMAR SOULEYMAN – Serok Apo Kurdistan

bijikurdistan:

YPG