View allAll Photos Tagged inverted
In a classic sundial, the time is read by observing the shadow cast by an inclined style, which sweeps over the hour lines. Here, it is the hour lines that project onto the dial down to a point where the time is read.
If the principle of this sundial has been known since the 17th century, only one copy of this type, which has now disappeared, was made in France, in Besançon in 1757.
In the canopy, which is inclined according to the latitude of the place overhanging the vertical wall, incisions were made, ending with hour numerals, which let light rays pass through. During the course of the day, these rays scroll in the shadow of the wall from left to right and indicate the "0-minute" solar hour when they pass over the red dot placed in front of the index finger of the hand.
______________________
Dans un cadran classique, la lecture de l'heure s'effectue en observant l'ombre issue d'un style incliné, qui balaye des lignes horaires. Ici, ce sont les lignes horaires qui se projettent sur le cadran et balayent un point où s'effectue la lecture de l'heure.
Si le principe de ce cadran solaire est connu depuis le XVIIème siècle, un seul exemplaire de ce type, aujourd'hui disparu, a été réalisé en France, à Besançon en 1757.
Dans l''auvent incliné selon la latitude du lieu qui surplombe la paroi verticale, on a pratiqué des incisions, terminées par des chiffres d'heures, qui laissent passer des rais de lumière. Au cours de la journée, ces rais défilent dans l'ombre du mur de la gauche vers la droite et indiquent l'heure solaire "entière" lorsqu'ils passent sur le point rouge placé devant l'index de la main.
20161214-0021
All my images are protected under international authors copyright laws and may not be downloaded, reproduced, copied, transmitted or manipulated without my written explicit permission All rights reserved. Copyright 2022 © Mark Lee
Rolleiflex Automat K4B
CZJ Tessar 75 mm f/3,5@ f/8; 1/25
Rollei green filter
Ilford FP4+@ISO 250
Diafine 3,5+3,5 min.
Take bubble wrap and three pegs (pink, yellow and green) then invert the colours and inverse the picture. Green becomes pink, Pink becomes green, Yellow becomes blue. Voila!!
Untitled sculpture by Anish Kapooor at High Museum of Art in Atlanta GA. It consists of pieces of mirror on a concave base that give inverted images that take on fractal patterns. The bright area at the bottom of the sculpture is the ceiling with rows of "light scoops". The dark blocks in the middle are reflections of artwork in the room and the photography. At the top is the reflection of the floor.
My neighbors hate the double-crested cormorants so much that I inverted them and made them anonymous. 65/365