I like astronomy, archaeology, photography, music and drinking a lot of tea. I hate politics. Something that annoys me: that I shall not respect the permanence, and to take me by what I'm not. The best sign: VIRGO. The worst: the health. The best: adapt and know how to get ahead. FIRST BLOG: esplaobs.blogspot.com, SECOND BLOG: esplaobs02.blogspot.com, RETRO BLOG: esplaobs01.blogspot.com, YOUTUBE CHANNELS: esplaobs, esplaobs. ext02. Instagram: esplaobsrosario. Welcome to my BLOGs !
Sunday, July 31, 2022
Saturday, July 30, 2022
Thursday, July 28, 2022
Friday, July 22, 2022
PLANETARIO CIUDAD DE ROSARIO - VACACIONES DE INVIERNO 2022 //// FOTOS: ESMERALDA SOSA
Algunas actividades externas, explanada Observatorio Astronómico por Bryant González Vásquez
( @mochilerosastronomicos )
( no personal técnico del Observatorio Astronómico )
Thursday, July 21, 2022
CITY OF STUTTGART UPGRADE OF THE ZEISS VELVET PROJECTORS IN THE CARL ZEISS PLANETARIUM
The nine "VELVET" projectors in the Carl Zeiss Planetarium are being retrofitted and equipped with LED light sources. The retrofit will take place from July 25 to August 22. During this time, the planetarium will be closed. The conversion will be carried out by the manufacturer in Jena and will bring many advantages: Since LEDs do not consume electricity in stand-by – unlike old lamps – up to 40 percent energy is saved. In addition, LEDs have a significantly longer service life and are therefore more resource-efficient. Another major advantage is that projection with LEDs onto the planetarium dome is more color-intensive, brighter and quieter, because LEDs require less cooling than halogen lamps. The projectors are a centerpiece of the planetarium and the technical system for dome-filling video projection.
(Image courtesy of City of Stuttgart).