"Summer in the city"
quarta-feira, 31 de agosto de 2016
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
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.
terça-feira, 30 de agosto de 2016
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.
segunda-feira, 29 de agosto de 2016
Image Credit & Copyright: Robert Gendler,
Roberto Colombari, Eric Recurt, Adam Block - Additional Data: Subaru (NAOJ)
Explanation: Young suns still lie within dusty NGC 7129, some 3,000 light-years away toward the royal constellation Cepheus. While these stars are at a relatively tender age, only a few million years old, it is likely that our own Sun formed in a similar stellar nursery some five billion years ago. Most noticeable in the sharp image are the lovely bluish dust clouds that reflect the youthful starlight. But the compact, deep red crescent shapes are also markers of energetic, young stellar objects. Known as Herbig-Haro objects, their shape and color is characteristic of glowing hydrogen gas shocked by jets streaming away from newborn stars. Paler, extended filaments of reddish emissionmingling with the bluish clouds are caused by dust grains effectively converting the invisible ultraviolet starlight to visible red light through photoluminesence. Ultimately the natal gas and dust in the region will be dispersed, the stars drifting apart as the loose cluster orbits the center of the Galaxy. The processing of this remarkable composite image has revealed the faint red strands of emission at the upper right. They are recently recognized as a likely supernova remnantand are currently being analyzed by Bo Reipurth (Univ. Hawaii) who obtained the image data at the Subaru telescope. At the estimated distance of NGC 7129, this telescopic view spans over 40 light-years.
domingo, 28 de agosto de 2016
Image Credit: NASA, ESA, and the Hubble SM4 ERO Team & ST-ECF
Explanation: What is that strange arc? While imaging the cluster of galaxies Abell 370, astronomers had noted an unusual arc to the right of many cluster galaxies. Although curious, one initial response was to avoid commenting on the arc because nothing like it had ever been noted before. In the mid-1980s, however, better images allowed astronomers to identify the arc as a prototype of a new kind of astrophysical phenomenon -- the gravitational lens effect of entire cluster of galaxies on background galaxies. Today, we know that this arc actually consists of two distorted images of a fairly normal galaxy that happened to lie far behind the huge cluster. Abell 370's gravity caused the background galaxies' light -- and others -- to spread out and come to the observer along multiple paths, not unlike a distant light appears through the stem of a wine glass. In mid-July of 2009, astronomers used the then just-upgraded Hubble Space Telescope to image Abell 370 and its gravitational lens images in unprecedented detail. Almost all of the yellow images featured here are galaxies in the Abell 370 cluster. An astute eye can pick up many strange arcs anddistorted arclets, however, that are actually images of more distant galaxies. Studying Abell 370 and its images gives astronomers a unique window into the distribution of normal and dark matter in galaxy clusters and the universe.
Etiquetas: Astronomy picture of the day - 2016 August 28 - Abell 370: Galaxy Cluster Gravitational Lens
sábado, 27 de agosto de 2016
Image Credit: NASA / Lunar Orbiter Image Recovery Project
Explanation: August 10th was the 50th anniversary of the launch of Lunar Orbiter 1. It was the first of five Lunar Orbiters intended to photograph the Moon's surface to aid in the selection of future landing sites. That spacecraft's camera captured the data used in this restored, high-resolution version of its historic first image of Earth from the Moon on August 23, 1966 while on its 16th lunar orbit. Hanging almost stationary in the sky when viewed from the lunar surface, Earth appears to be setting beyond the rugged lunar horizon from the perspective of the orbiting spacecraft. Two years later, the Apollo 8 crew would record a more famous scene in color: Earthrise from lunar orbit.
sexta-feira, 26 de agosto de 2016
Image Credit & Copyright: Juan Carlos Casado (TWAN, Earth and Stars)
Explanation: Under dark skies the setting of the Milky Way can be a dramatic sight. Stretching nearly parallel to the horizon, this rich, edge-on vista of our galaxy above the dusty Namibian desert stretches from bright, southernCentaurus (left) to Cepheus in the north (right). From early August, the digitally stitched, panoramic night skyscape captures the Milky Way's congeries of stars and rivers of cosmic dust, along with colors of nebulae not readily seen with the eye. Mars, Saturn, and Antares, visible even in more luminous night skies, form the the bright celestial triangle just touching the trees below the galaxy's central bulge. Of course, our own galaxy is not the only galaxy in the scene.Two other major members of our local group, the Andromeda Galaxy and the Triangulum Galaxy, lie near the right edge of the frame, beyond the arc of the setting Milky Way.
quinta-feira, 25 de agosto de 2016
Uma técnica do IFADAP bate a uma porta num montezinho perdido no interior do Alentejo e pergunta ao agricultor...
- Esta terra dá trigo?
- Nassenhora - responde o alentejano.
- Dá batata?
- Tamem não!
- Dá feijão?
- Nunca deu um!
- De manera nenhuma!
- Tá a gozar comigo?!
- Quer dizer que por aqui não adianta plantar nada?
- Ah! Se plantar já é diferente...
Image Credit & License: Y. Beletsky (LCO), ESO, Pale Red Dot Team
Explanation: The star closest to the Sun has a planet similar to the Earth. As announced yesterday, recent observations confirmed that this planet not only exists but inhabits a zone where its surface temperature could allow liquidwater, a key ingredient for life on Earth. It is not yet known if this planet, Proxima b, has any life. Even if not, its potential ability to sustain liquid water might make it a good first hop for humanity's future trips out into the Milky Way Galaxy. Although the planet's parent star, Proxima Centauri, is cooler and redder than our Sun, one of the other two stars in the Alpha Centauri star system is very similar to our Sun. The featured image shows the sky location of Proxima Centauri in southern skies behind the telescope that made many of the discovery observations: ESO's 3.6-meter telescope in La Silla, Chile. The discovered planet orbits close in -- so close one year there takes only 11 days on Earth. The planet was discovered by the ESO's Pale Red Dot collaboration. Although seemingly unlikely, if Proxima b does have intelligent life, at 4.25 light years distance it is close enough to Earth for two-way communication.
Etiquetas: Astronomy picture of the day - 2016 August 25 - Closest Star has Potentially Habitable Planet
quarta-feira, 24 de agosto de 2016
Nubes de tormenta al atardecer en un campo de maíz en Petersdorf (Alemania).
PATRICK PLEUL EFE
Pelo menos 38 pessoas morreram na sequência de um forte sismo de 6.0 na escala de Richter, em Itália, segundo o último balanço da Proteção Civil italiana. O número de vítimas pode vir a aumentar, visto que há indicação de vários feridos e de famílias inteiras soterradas.
"Neste momento, há 38 vítimas confirmadas", afirmou o porta-voz do escritório de emergência da Proteção Civil, Immacolata Postiglione, em conferência de imprensa em Roma. Sobre o número de desaparecidos, Postiglione recusou precisar um número.
Image Credit: NASA, JPL-Caltech, MSSS
Explanation: What are these unusual lumps on Mars? As NASA's robotic Curiosity rover continues rolling across Mars, it is now approaching Murray Buttes. Several of the 15-meter high buttes are visible ahead in this horizontally compressed 360-degree across image taken inside Gale Crater earlier this month. The buttes are thought similar to Earth buttes in that they are capped with dense rock that is relatively resistant to erosion. In the image center isCuriosity's "arm" and "hand" used to examine rocks up close, drill into rocks, and collect samples. Curiosity has reached its four year anniversary on Mars and has been cleared to spend the next two years further exploring the slopes ofMount Sharp, the peak of which is the distant light-colored structure visible on the far left.
terça-feira, 23 de agosto de 2016
Image Credit & Copyright: Phebe Pan
Explanation: That's no meteor. While watching and photographing this year's Perseid Meteor Shower, something unexpected happened: a gigantic jet erupted from a nearby cloud. The whole thing was over in a flash -- it lasted less than a second -- but was fortunately captured by an already-recording digital camera. Gigantic jets are a rare form of lightning recognized formally only a few years ago. The featured high resolution color image, taken near the peak ofShikengkong mountain in China, may be the best image yet of this unusual phenomena. The same event appears to have been captured simultaneously by another photographer, further away. The gigantic jet appears to start somewhere in a nearby thundercloud and extend upwards towards Earth's ionosphere. The nature of gigantic jets and their possible association with other types of Transient Luminous Events (TLEs) such as blue jets and red sprites remains an active topic of research.
segunda-feira, 22 de agosto de 2016
O Ti Zé Chaparro, aproveitando a viagem a Mértola, foi ao médico fazer um 'xécápi'.
Pergunta o médico.
- Sr. José, o senhor está em muito boa forma para 40 anos.
- E eu disse que tinha 40 anos?
- Quantos anos o senhor tem?
- Fiz 57 em agora em Março.
- Não me diga! E quantos anos tinha o seu pai quando morreu?
- E eu disse que meu pai morreu?
- Oh, desculpe! Quantos anos tem o seu pai?
- O velho tem 81.
- 81? Que bom! E quantos anos tinha o seu avô quando morreu?
- E eu disse que ele morreu?
- Sinto muito. E quantos anos ele tem?
- 103, e ainda anda de bicicleta.
- Fico feliz em saber. E o seu bisavô? Morreu de quê?
- E eu disse que ele tinha morrido? Ele está com 124 e vai casar na
semana que vem.
- Agora já é demais! - Diz o médico revoltado.
- Por que é que um homem de 124 anos iria querer casar?
- E eu disse que ele QUERIA se casar? Não queria nada, mas engravidou a moça!..
Image Credit & Copyright: Cenk E. Tezel and Tunç Tezel (TWAN)
Explanation: If you went outside at exactly the same time every day and took a picture that included the Sun, how would the Sun's position change? With great planning and effort, such a series of images can be taken. The figure-8 path the Sun follows over the course of a year is called an analemma. At the Winter Solstice in Earth's northern hemisphere, the Sun appears at the bottom of the analemma. Analemmas created from different latitudes appear at least slightly different, as well as analemmas created at a different time each day. With even greater planning and effort, the series can include a total eclipse of the Sun as one of the images. Pictured is such a total solar eclipse analemma or Tutulemma - a term coined by the photographers based on the Turkish word for eclipse. The featured composite image sequence was recorded from Turkey starting in 2005. The base image for the sequence is from the total phase of a solar eclipse as viewed from Side, Turkey on 2006 March 29. Venus was also visible during totality, toward the lower right. If you want to create your own USA-based tutulemma ending at next August's total solar eclipse, now would be good time to start.
domingo, 21 de agosto de 2016
Neymar não tremeu na marcação da grande penalidade decisiva e deu a medalha de ouro ao Brasil.
O Brasil tornou-se no novo campeão olímpico de futebol, depois de bater a Alemanha nas grandes penalidades, por 5-4, após o empate a uma bola registado nos 120 minutos de jogo corrido.
Neymar foi o herói do encontro, ao marcar, logo aos 27 minutos, de livre direto, um golo maravilhoso que colocou os brasileiros em vantagem. No entanto, aos 59, Max Meyer fez o empate que iria subsistir até ao final dos 120 minutos.
Nos penáltis, Nils Petersen falhou o quinto penálti para a Alemanha, sendo que todos os jogadores canarinhos chamados a bater converteram. Neymar, encarregue da marcação da última grande penalidade, não deu hipótese de defesa a Timo Horn.
Image Credit: Fred Espenak (NASA's GSFC), MrEclipse.com, Google Maps
Explanation: Would you like to see a total eclipse of the Sun? If so, do any friends or relatives live near the path of next summer's eclipse? If yes again, then you might want to arrange a visit for one year from today. Next year on this exact date, the path of a total solar eclipse will cut right across the center of the contiguous USA. All of North America and part of South America will experience, at the least, a partial solar eclipse. Featured here is a map of the path of totality, computed by eclipse expert Fred Espenak of NASA's GSFC. Many people who have seen a total solar eclipse tell stories about it for the rest of their lives. The last path of solar totality that included any part of the contiguous USA was in 1979, and the next two will be in 2024 and 2045.
Etiquetas: Astronomy picture of the day - 2016 August 21 - Map of Total Solar Eclipse Path in 2017 August
sábado, 20 de agosto de 2016
Image Credit & Copyright: Daniel López (El Cielo de Canarias)
Explanation: Gamma-rays and dust from periodic Comet Swift-Tuttle plowed through planet Earth's atmosphere on the night of August 11/12. Impacting at about 60 kilometers per second the grains of comet dust produced this year's remarkably active Perseid meteor shower. This composite wide-angle image of aligned shower meteors covers a 4.5 hour period on that Perseid night. In it the flashing meteor streaks can be traced back to the shower's origin on the sky. Alongside the Milky Way in the constellation Perseus, the radiant marks the direction along the perodic comet's orbit. Traveling at the speed of light, cosmic gamma-rays impacting Earth's atmosphere generated showers too, showers of high energy particles. Just as the meteor streaks point back to their origin, the even briefer flashes of light from the particles can be used to reconstruct the direction of the particle shower, to point back to the origin on the sky of the incoming gamma-ray. Unlike the meteors, the incredibly fast particle shower flashes can't be followed by eye. But both can be followed by the high speed cameras on the multi-mirrored dishes in the foreground. Of course, the dishes are MAGIC (Major Atmospheric Gamma Imaging Cherenkov) telescopes, an Earth-based gamma-ray observatory on the Canary Island of La Palma.
sexta-feira, 19 de agosto de 2016
"Estoy preparado para luchar y va a ser un auténtico espectáculo", aseguró ayer McGregor en una rueda de prensa que no tardaría en irse de madre. La revancha entre Diaz y McGregor, que tendrá lugar este sábado 20 de agosto, fue la razón por la que se reunieron en Las Vegas decenas de medios que vivieron atónitos cómo volaban botellas, insultos y amenazas por una sala de prensa que se convirtió en un campo de batalla.
El Pais - España
Omran Daqneesh, de cinco años, con la cara sucia y ensangrentada, espera sentado junto a su hermana dentro de una ambulancia, tras ser rescatados de un ataque aéreo en la zona rebelde de al-Qaterji , en Alepo (Siria).
Image Credit & Copyright: Jeremy Perez
Explanation: On the night of August 12, this bright Perseid meteor flashed above volcanic Sunset Crater National Monument, Arizona, USA, planet Earth. Streaking along the summer Milky Way, its initial color is likely due to the shower meteor's characteristically high speed. Entering at 60 kilometers per second, Perseid meteors are capable of exciting green emission from oxygen atoms while passing through the tenuous atmosphere at high altitudes. Also characteristic of bright meteors, this Perseid left a visibly glowing persistent train. Its evolution is seen over a three minute sequence (left to right) spanning the bottom of the frame. The camera ultimately captured a dramatic timelapse video of the twisting, drifting train.
quinta-feira, 18 de agosto de 2016
Image Credit & Copyright: Mike Shaw
Explanation: The 2016 Perseid meteor shower performed well on the night of August 11/12. The sky on that memorable evening was recorded from a perch overlooking Yosemite Valley, planet Earth, in this scene composed of 25 separate images selected from an all-night set of sequential exposures. Each image contains a single meteor and was placed in alignment using the background stars. The digital manipulation accounts for the Earth's rotation throughout the night and allows the explosion of colorful trails to be viewed in perspective toward the shower's radiant in the constellation Perseus. The fading alpenglow gently lights the west face of El Capitan just after sunset. Just before sunrise, a faint band zodiacal light, or the false dawn, shines upward from the east, left of Half Dome at the valley's far horizon. Car lights illuminate the valley road. Of course, the image is filled with other celestial sights from that Perseid night, including the Milky Way and the Pleiades star cluster.
quarta-feira, 17 de agosto de 2016
Image Credit & Copyright: Fritz Helmut Hemmerich
Explanation: What's that green streak in front of the Andromeda galaxy? A meteor. While photographing the Andromeda galaxy last Friday, near the peak of the Perseid Meteor Shower, a sand-sized rock from deep space crossed right in front of our Milky Way Galaxy's far-distant companion. The small meteor took only a fraction of a second to pass through this 10-degree field. The meteor flared several times while braking violently upon entering Earth's atmosphere. The green color was created, at least in part, by the meteor's gas glowing as it vaporized. Although the exposure was timed to catch a Perseids meteor, the orientation of the imaged streak seems a better match to a meteor from the Southern Delta Aquariids, a meteor shower that peaked a few weeks earlier.
terça-feira, 16 de agosto de 2016
Image Credit & Copyright: Alex Cherney (Terrastro, TWAN)
Explanation: It is not a coincidence that planets line up. That's because all of the planets orbit the Sun in (nearly) a single sheet called the plane of the ecliptic. When viewed from inside that plane -- as Earth dwellers are likely to do -- the planets all appear confined to a single band. It is a coincidence, though, when several of the brightest planets all appear in nearly the same direction. Such a coincidence was captured just last week. Featured above, six planets and Earth's Moon were all imaged together last week, just before sunset, from Mornington Peninsula in Victoria, Australia. A second band is visible across the top of this tall image -- the central band of our Milky Way Galaxy.
segunda-feira, 15 de agosto de 2016
"Chega de saudade"
O Parque Natural da Arrábida é um verdadeiro tesouro natural. O Parque Natural da Arrábida alia as mais belas paisagens de Serra da Arrábida com praias magníficas como a do Portinho da Arrábida. Um paraíso às portas da capital.
Sintra é uma vila que mais parece saída de um conto de fadas. A sua paisagem verde é entrecortada aqui e ali por majestosos monumentos. O palácio de Sintra é um dos monumentos Portugueses mais conhecidos internacionalmente e estabelece-se por vezes comparação com o famoso palácio alemão Neuschwanstein, que inspirou os castelos da Walt Disney.
Space Image Credit: NASA, ESA, Hubble, and J. Maiz- Apellániz (IAA); Acknowledgement: D. De Martin;
Human Image Copyright: Charis Tsevis; Composition: R. J. Nemiroff
Explanation: You are a spaceship soaring through the universe. So is your dog. We all carry with us trillions of microorganisms as we go through life. These multitudes of bacteria, fungi, and archaea have different DNA than you. Collectively called your microbiome, your shipmates outnumber your own cells. Your crew members form communities, help digest food, engage in battles against intruders, and sometimes commute on a liquid superhighway from one end of your body to the other. Much of what your microbiome does, however, remains unknown. You are the captain, but being nice to your crew may allow you to explore more of your local cosmos.
domingo, 14 de agosto de 2016
Image Credit: NASA, Hubble Heritage (AURA/STScI)
Explanation: The dark dusty Keyhole Nebula gets its name from its unusual shape. The looping Keyhole, in this featured classic image by the Hubble Space Telescope, is a smaller region inside the larger Carina Nebula. Dramatic dark dust knots and complex features are sculpted by the winds and radiation of the Carina Nebula's many massive and energetic stars. In particular, the shape of the dust cloud on the upper left of the Keyhole Nebula may stimulate the human imagination to appear similar to, for example, a superhero flying through a cloud, arm up, with a saved person in tow below. The region lies about 7,500 light-years away in planet Earth's southern sky. The Keyhole Nebula was created by the dying star Eta Carina , out of the frame, which is prone to violent outbursts during its final centuries.
sábado, 13 de agosto de 2016
Image Credit & Copyright: Fernando Cabrerizo
Explanation: Perseid meteors rained on planet Earth last night. This year the stream of dust from periodic comet Swift-Tuttle has produced a stunningly active shower of bright cosmic streaks. In this 25 second long exposure, one luminous Perseid trail, fast and colorful with a small explosion at the end, is witnessed by night skygazers from Torralba del Burgo, Soria, Spain. A second fainter meteor trail appears well below the first. The two can be extended to intersect at the meteor shower's radiant just above the brighter stars of the heroic constellation Perseus. Though the meteor shower's activity is waning, in the coming days Perseids will still flash through the night. But you won't see any if you don't go outside and look up.
sexta-feira, 12 de agosto de 2016
Vista de una Perseida en el cielo cerca de Pesquera de Ebro (Burgos).
CESAR MANSO AFP
Image Credit & Copyright: Bob English
Explanation: At first called "Easterbunny" by its discovery team, officially named Makemake is the second brightest dwarf planet of the Kuiper belt. The icy world appears twice in this astronomical image, based on data taken on June 29 and 30 of the bright spiral galaxy NGC 4725. Makemake is marked by short red lines, its position shifting across a homemade telescope's field-of-view over two nights along a distant orbit. On those dates nearly coincident with the line-of-sight to the spiral galaxy in the constellation Coma Bernices, Makemake was about 52.5 astronomical units or 7.3 light-hours away. NGC 4725 is over 100,000 light-years across and 41 million light-years distant. Makemake isnow known to have at least one moon. NGC 4725 is a famous one-armed spiral galaxy.