"Writing a letter"
05-04-2015
JoanMira
2016-09-02
Astronomy picture of the day - 2016 September 2 - Little Planet Astro Camp
Image Credit & Copyright: György Soponyai
Explanation: Day and night on this little planet look a lot like day and night on planet Earth. In fact, the images used to construct the little planet projection, a digitally warped and stitched mosaic covering 360x180 degrees, were taken during day and night near Tarján, Hungary, planet Earth. They span a successful 33-hour-long photo experiment at July's Hungarian Astronomical Association Astro Camp. The time-series composite follows the solar disk in 20 minute intervals from sunrise to sunset and over six hours of star trails in the northern night sky centered on the North Celestial Pole near bright star Polaris. The orbiting International Space Station traced the offset arc across the northern night. Below the little planet's nightside horizon, red light lamps of fellow astro-campers left the night-long, dancing trails.
2016-09-01
Astronomy picture of the day - 2016 September 1 - Light at the End of the Road
Image Credit & Copyright: Josh Calcino
Explanation: The bright light at the end of this country road is actually a remarkably close conjunction of two planets. After sunset on August 27 brilliant Venus and Jupiter almost appear as a single celestial beacon in the night skyscape taken near Lake Wivenhoe, Queensland, Australia. A spectacular vertical panorama from the southern hemisphere, it shows the central Milky Way near zenith, posed on top of a pillar of Zodiacal light along the ecliptic plane. Of course Mars and Saturn are near the ecliptic too, just below the galaxy's central bulge. Above and left of a tree on the horizon, fleeting planet Mercury also adds to the light at the end of the road.
2016-08-31
Brasil: azeite falsificado com alegada origem portuguesa
A Proteste Brasil – Associação de Consumidores testou 19 marcas de azeite extra virgem e descobriu que quatro são uma mistura de óleos refinados, entre as quais se encontram, alegadamente, três de origem portuguesa.
A notícia, avançada hoje pela TSF, refere que o Brasil compra azeite falsificado como sendo português, indicando que a Proteste brasileira detetou pelo menos três marcas portuguesas adulteradas ou contendo informação errada no rótulo, nomeadamente a Beirão, Figueira da Foz e Tradição.
De acordo com a TSF, duas marcas são falsificações, enquanto a outra é azeite virgem vendido como extra virgem. As marcas falsificadas dizem no rótulo que se trata de "azeite português", mas são engarrafadas no Brasil e podem ter outra origem.
Segundo apurou a TSF, as duas marcas vendidas como azeite português - Tradição e Figueira da Foz - "são na verdade contrafações, tratando-se de misturas de óleos vegetais que não são extraídos da azeitona", segundo avançou a advogada da Proteste Brasil Lívia Coelho.
No caso do azeite Beirão, o único embalado em Portugal, é azeite virgem vendido com a classificação de extra virgem.
A Proteste Brasil recomenda aos brasileiros que não comprem este azeite, ao mesmo tempo que enviou as análises realizadas para o Ministério Público brasileiro.
TVI 24 - Portugal
Astronomy picture of the day - 2016 August 31 - Annular Solar Eclipse over New Mexico
Image Credit & Copyright: Colleen Pinski
Explanation: What is this person doing? In 2012 an annular eclipse of the Sun was visible over a narrow path that crossed the northern Pacific Ocean and several western US states. In an annular solar eclipse, the Moon is too far from the Earth to block out the entire Sun, leaving the Sun peeking out over the Moon's disk in a ring of fire. To capture this unusual solar event, an industrious photographer drove from Arizona to New Mexico to find just the right vista. After setting up and just as the eclipsed Sun was setting over a ridge about 2.5 kilometers away, a person unknowingly walked right into the shot. Although grateful for the unexpected human element, the photographer never learned the identity of the silhouetted interloper. It appears likely, though, that the person is holding a circular device that would enable them to get their own view of the eclipse. The shot was taken at sunset on 2012 May 20 at 7:36 pm local time from a park near Albuquerque, New Mexico, USA. Tomorrow another annular solar eclipse will become visible, this time along a path crossing Africa and Madagascar.
2016-08-30
Astronomy picture of the day - 2016 August 30 - Aurora over Icelandic Fault
Image Credit & Copyright: Juan Carlos Casado (TWAN, Earth and Stars)
Explanation: Admire the beauty but fear the beast. The beauty is the aurora overhead, here taking the form of great green spiral, seen between picturesque clouds with the bright Moon to the side and stars in the background. The beast is the wave of charged particles that creates the aurora but might, one day, impair civilization. Exactly this week in 1859, following notable auroras seen all across the globe, a pulse of charged particles from a coronal mass ejection (CME) associated with a solar flare impacted Earth's magnetosphere so forcefully that they created the Carrington Event. A relatively direct path between the Sun and the Earth might have been cleared by a preceding CME. What is sure is that the Carrington Event compressed the Earth's magnetic field so violently that currents were created in telegraph wires so great that many wires sparked and gave telegraph operators shocks. Were a Carrington-classevent to impact the Earth today, speculation holds that damage might occur to global power grids and electronics on a scale never yet experienced. The featured aurora was imaged last week over Thingvallavatn Lake in Iceland, a lake that partly fills a fault that divides Earth's large Eurasian and North American tectonic plates.
2016-08-29
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