grouchygreg

533 posts
Read More

History of Photography and Nature

The history of photography has roots in remote antiquity with the discovery of the principle of the camera obscura (a dark room) and the observation that some substances are visibly altered by exposure to light.
Read More

Selfie in the space is so fun

Space is the boundless three-dimensional extent in which objects and events have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime.