Zooming in on the red hypergiant star VY Canis Majoris #ESO

Publicado em 26 de nov de 2015

This video sequence takes you on a voyage from a broad vista of the sky into a close-up look at one of the biggest stars in the Milky Way, VY Canis Majoris. The final image comes from the SPHERE instrument on ESO’s Very Large Telescope in Chile.

More information and download options: http://www.johanmonell.com/

Credit:
ESO/Digitized Sky Survey 2/N. Risinger (skysurvey.org)
Music: Johan B. Monell

Navio russo da Frota do Mar Negro chega em Latakia para defesa aérea

Publicado em 26 de nov de 2015

Síria: carro-chefe da Frota do Mar Negro chega em Latakia para a defesa aérea

Cruzador de mísseis da Rússia e da capitânia da frota do Mar Negro, o Moskva, chegou na quinta-feira na costa de Latakia para a defesa aérea da região, depois de um avião de caça russo ter sido abatido pela Turquia que é membro da OTAN, na terça-feira.
Crédito: Ruptly TV

ID do vídeo: 20151126-059
Video on Demand: http://www.ruptly.tv
Contato: cd@ruptly.tv


EN
Syria: Black Sea Fleet's flagship Moskva arrives in Latakia for air defence

Russian missile cruiser and flagship of the Black Sea Fleet, the Moskva, arrived on Thursday to the shore of Latakia for air defence of the region, after a Russian fighter jet was shot down by NATO member Turkey on Tuesday.

Video ID: 20151126-059
Video on Demand: http://www.ruptly.tv
Contact: cd@ruptly.tv

Síria: Veja o momento em que os S-400s russos chegaram em Latakia

Publicado em 26 de nov de 2015

Um dos sistemas de defesa aérea mais avançados da Rússia, o S-400 Triumf, foi implantado em Hmeymim uma Base Aérea na Síria na quinta-feira, depois de ser levado de avião para as instalações militares. Crédito: Ruptly TV

ID do vídeo: 20151126-079
Video on Demand: http://www.ruptly.tv
Contato: cd@ruptly.tv

EN
Syria: See the moment the S-400s arrived in Latakia

One of Russia's most advanced air defence systems, the S-400 Triumf, was deployed to Hmeymim Air Base in Syria on Thursday, after being carried by plane to the military facilities. Credit: Ruptly TV

Video ID: 20151126-079
Video on Demand: http://www.ruptly.tv
Contact: cd@ruptly.tv

Tonight's Sky For December 2015 On Hubble Space Telescope

Publicado em 26 de nov de 2015

Backyard stargazers get a monthly guide to the northern hemisphere's skywatching events with "Tonight's Sky." In December, Jupiter, Mars, Venus and Saturn all make an appearance, as does the Geminid Meteor Shower.

"Tonight's Sky" is produced by HubbleSite.org, online home of the Hubble Space Telescope. This is a recurring show, and you can find more episodes — and other astronomy videos — at HubbleSite.org.

Visit Tonight's Sky on HubbleSite.
http://hubblesite.org/explore_astrono...

Inside LISA Pathfinder, with narration #ESA

Publicado em 26 de nov de 2015

ESA’s LISA Pathfinder mission is a technology demonstrator that will pave the way for future spaceborne gravitational-wave observatories. It will operate about 1.5 million km from Earth towards the Sun, orbiting the first Sun–Earth ‘Lagrangian point’, L1.

The animation of the spacecraft build-up begins with two freely falling test masses. Between them lies the central component of LISA Pathfinder’s payload: the 20 x 20 cm optical bench interferometer. A set of 22 mirrors and beam-splitters directs laser beams across the bench. There are two beams: one reflects off the two free-falling test masses while the other is confined to the bench. By comparing the length of the different paths covered by the beams, it is possible to monitor changes accurately in distance and orientation between the two test masses.

A box surrounds the two masses without touching them, shielding them from outside influence and constantly applying tiny adjustments to its position. This internal payload is housed in a central cylinder, isolating the test masses from the other components of the science payload and spacecraft.

The solar array provides power to the instrumentation and acts as a thermal shield. Microthrusters control the spacecraft to keep the master test mass centred in its housing, opposing the force of the solar radiation pressure – the main source of ‘noise’ – impinging on the solar array.

Although LISA Pathfinder is not aimed at the detection of gravitational waves themselves, it will prove the innovative technologies needed to do so. It will demonstrate that the two independent masses can be monitored as they free-fall through space, reducing external and internal disturbances to the point where the relative test mass positions would be more stable than the expected change caused by a passing gravitational wave, equal to much less than the size of an atom.

Animated sequence without narration: Inside LISA Pathfinder: https://www.youtube.com/watch?v=YyZJ1...

More about LISA Pathfinder: http://sci.esa.int/lisa-pathfinder/

Credit: ESA

Rússia posiciona sistemas de defesa aérea S-400 TRIUMF na Síria

Publicado em 26 de nov de 2015

Síria: S-400 agora é implantado em Latakia para ajudar a defesa aérea.

Um dos sistemas de defesa aérea mais avançados da Rússia, o S-400 Triumf, foi implantado na Base Aérea de Hmeymim na Síria na quinta-feira.

O sistema Triumf, também chamado de SA-21 Growler, é capaz de detectar e destruir os aviões na faixa de 400 km. O sistema de defesa de mísseis superfície-ar pode ser carregado com pelo menos três tipos de mísseis, que podem rastrear 300 alvos simultaneamente.

ID do vídeo: 20151126-055
Video on Demand: http://www.ruptly.tv
Contato: cd@ruptly.tv

Crédito: Ruptly TV


EN:
Syria: S-400 now deployed in Latakia to boost air defence

One of Russia's most advanced air defence systems, the S-400 Triumf, was deployed to Hmeymim Air Base in Syria on Thursday.

The Triumf system, also called the SA-21 Growler, is capable of detecting and destroying aircraft at a range of 400 kilometres. The surface-to-air missile defence system can be loaded with at least three types of missiles, which can track 300 targets simultaneously.

Video ID: 20151126-055
Video on Demand: http://www.ruptly.tv
Contact: cd@ruptly.tv

Rússia: Veja vôo inaugural do helicóptero Terminator Mi-8AMTSh-VA

Publicado em 26 de nov de 2015

Uma versão modificada do militar russo Mil Mi-8 helicóptero de transporte, adaptado para congelar as condições meteorológicas do Ártico, foi levado pela primeira vez perto de Ulan-Ude, no sul da Rússia na quarta-feira.

O protótipo, chamado Mi-8AMTSh-VA, está equipado com potentes motores, um sistema de proteção contra gelo, e trem de pouso de esqui projetado para lidar com condições abaixo de zero até menos 40 graus Celsius, bem como os riscos climáticos extremos.

Crédito: Ruptly TV


EN
Russia: See Mil Mi-8AMTSh-VA 'TERMINATOR' chopper's maiden flight
A modified version of the Russian military Mil Mi-8 transport helicopter, adapted for freezing Arctic weather conditions, was flown for the first time near Ulan-Ude in southern Russia on Wednesday.

The prototype, titled Mi-8AMTSh-VA, is fitted with powerful engines, an ice-protection system, and ski landing gear designed to tackle sub-zero conditions up to minus 40 degrees Celsius as well as extreme weather hazards.

Video ID: 20151125-046
Video on Demand: http://www.ruptly.tv
Contact: cd@ruptly.tv

LISA Pathfinder: Window on the gravitational universe #ESA

Publicado em 26 de nov de 2015

LISA Pathfinder’s name, Laser Interferometer Space Antenna, clearly indicates the role of precursor that this mission plays. Its goal is to validate the technology required to detect gravitational waves from space. Gravitational waves will open a new door in our understanding of the Universe, and at the same time help to verify Einstein’s General Theory of Relativity. LISA Pathfinder will be launched early December 2015 on a Vega rocket from Kourou in French Guiana.

Monitoring climate from space: Registration is open free online course #ESA

Publicado em 26 de nov de 2015

Registration is open for a free online course that provides an introduction to monitoring climate change using satellite Earth observation.

ESA has teamed up with FutureLearn, a leading online learning platform, to offer the ‘Monitoring Climate from Space’ course beginning 30 November 2015.

As the crucial COP21 Paris Climate Summit approaches, detailed evidence about the process and impact of climate change is needed more than ever. Satellite Earth Observation technology provides a powerful and compelling insight into climate change which can help to underpin climate policy, scientific research and public engagement. But how does this technology work, and how can it achieve the essential detail and comprehensive worldwide view that we need?

Join Lead Educator Professor Martin Wooster and leading climate experts such as Professor Konrad Steffen, Professor Anny Cazenave, Dr Stephen Briggs and Dr Emily Shuckburgh as they reveal the perspective provided by satellite Earth observation.

Join now, starts 30 November:
https://www.futurelearn.com/courses/c...

Este é Bráulio Escobar, 40 anos, motorista do UBER, brutalmente espancado por "taxistas" em Porto Alegre

Os marginais, descontentes com a livre concorrência, fizeram uma emboscada para ele. Escobar atribui parte da responsabilidade à prefeitura por tratar o serviço UBER como clandestino e inflamar a categoria dos taxistas contra.

Eu tenho absoluta certeza que estes agressores são minoria e deixaram envergonhados profissionais sérios que ganham a vida honestamente trabalhando no táxi e servindo bem os clientes.

Táxi não é UBER. Uber não é táxi. É plenamente possível que ambos prestem bons serviços e se estabeleçam no mercado.