Flight of a meteoric stone over Petersburg

February 16, at about 11:15 was recorded track from a stony meteorite of St. Petersburg. Secure the body of the meteorite was nearly impossible. His speed was great and exceeded the third space in half, twice. Consequently, the meteoric stone flew silently and only after tens of seconds was audible hum in the sky manifested white inversion trace. The presence of contrails and more signs that the body of the meteorite was a boulder. Iron meteorites moisture (in the form of ice) do not. That water vapor formed during freezing like white trace.

Meeting of large meteorites (10 meters) from the Earth is very rare. Drop on the planet, such as the Tunguska meteorite, very small and on average can occur once a millennium. Collision of the Earth with asteroids like 2012 DA14 occur average once every 1.2-1.5 thousand years. Meeting with a meteorite like Chelyabinsk occur more frequently, about 1 time in 100 years.

PetroMramor Catalogs

Products of Petromramor on YouTube

Submitted videos production processes from manufacturing slabs a granite and marble to thermal processing and bucharding natural stone. All stories are original and are publicly available on Youtube.

Jobs in processing of stone

To view current vacancies for specialists in the field of stone processing, engineers, administrative staff, vacancies, training or leave summary - refer to Vacancies