Gear Drives, history and evolution. Performing cylindrical-conical surfaces. Intersections of cones. Spindle. Valves. Flanges. A profile in long. Descriptive Geometry as a branch of Projective Geometry.

Descriptive Geometry as a branch of Projective Geometry

We can extract the energy of the rest mass of an electron. For a pair of an electron and a positron this energy is circa 1 MeV. The "synchrotron radiation (synchrotron light source)" produces deliberated a radiation source. Electrons are accelerated (...)

©2010 Florian Ion PETRESCU - Obtaining Energy by the Annihilation of an Electron with a Positron

The Aircraft of tomorrow

WHO ARE US? 1-WE WERE T M M (MECHANISMS AND MACHINES THEORY), AND NOW WE ARE T M R (MECHANISMS AND ROBOTS THEORY) CHAIR, 2-WE ARE THE FOUNDER OF A R o T M M (ROMANIAN ASSOCIATION ON MACHINES AND MECHANISMS THEORY), 3-WE ARE ONE OF THE 13 FOUNDERS (...)

"Cetatuia" of "Cetateni", is a Church in the Romanian mountains, founded approximately at the year 1300, by "Negru Voda Basarab", The Founder of Romania.