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Τρίτη 5 Φεβρουαρίου 2013
13 Ιανουαρίου 2013.
Δύο μικρά νησιά είχαν μεγάλο αντίκτυπο στις ουρανό πάνω από τον Ειρηνικό Ωκεανό, τον Ιανουάριο του 2013, η δημιουργία του Paisley σχέδια που εκτείνεται 280 χιλιόμετρα (175 μίλια). Το ψήφισμα Μέτρια απεικόνισης Φασματοραδιόμετρο (MODIS) της NASA για Terra δορυφόρου συνέλαβε αυτή την εικόνα φυσικών χρωμάτων στις 13 Ιανουαρίου 2013.
Τα Juan Fernandez νησιά βρίσκονται περίπου 800 χιλιόμετρα (500 μίλια) από την ακτή της Χιλής. Το μεγαλύτερο από αυτά-Isla Alejandro (Αλέξανδρος) και Selkirk Isla Robinson Crusoe-Τα ηφαιστειακά νησιά που βρίσκονται κατά μήκος ενός Ανατολής-Δύσης τείνοντας-υποβρύχιο κορυφογραμμή. Κάθε νησί διαθέτει ένα ψηλό σύνοδο κορυφής. Με έκταση 52 τετραγωνικά χιλιόμετρα (20 τετραγωνικά μίλια), Isla Alejandro Selkirk φτάνει σε υψόμετρο από 1.650 μέτρα (5.413 πόδια) πάνω από την επιφάνεια της θάλασσας. Ελαφρώς μικρότερη, Isla Robinson Crusoe έχει μια συνολική έκταση 48 τετραγωνικά χιλιόμετρα (19 τετραγωνικά μίλια), και φτάνει σε υψόμετρο από 922 μέτρα (3025 πόδια).
Τα νησιά είναι αρκετά ψηλός για να διαταράξει τη ροή του αέρα πάνω από τον ωκεανό. Όταν ένα αντικείμενο, όπως ένα νησί παρεμβαίνει με την κυκλοφορία του αέρα, von Karman δίνες σχηματίζουν στον αέρα για το κατάντη (ή υπήνεμη) πλευρά του νησιού. Επίσης γνωστό ως δίνη δρόμους, που είναι διπλές σειρές των δινών σπείρα που γίνονται ορατά από τα σύννεφα.
Day 7: Child held hostage in bunker
Jimmy Lee Dykes is the suspect accused of taking a 5-year-old boy off of a school bus and holding him hostage in an underground bunker. Today will mark the seventh day the two have been underground.Over the past few days, we've gotten a better idea of what this bunker looks like where the suspect is holding his young hostage. We know the bunker is several feet underground behind a camper and a large shed. It's about 15 feet by 15 feet, with stairs leading up to the doors. For more informaton please visit
Δευτέρα 4 Φεβρουαρίου 2013
ΣΤΡΑΤΙΩΤΙΚΟΙ ΙΕΡΕΙΣ
Ο π. Μιχαήλ είναι ο ιερέας της 45ης Αερομεταφερόμενης Ταξιαρχίας Καταδρομέων (VDV) του ρωσικού στρατού. Είναι και ο ίδιος αλεξιπτωτιστής όπως και οι άλλοι επτά στρατιωτικοί ιερείς που υπηρετούν στις ειδικές δυνάμεις. Το 2012 έκανε 38 άλματα με αλεξίπτωτο. Στα σακίδια αυτών των ιερέων υπάρχουν όλα τα απαραίτητα για μια λειτουργία κάτω από αντίξοες συνθήκες. Οι στρατιωτικοί ιερείς που υπηρετούν στις ειδικές δυνάμεις έχουν στην διάθεση τους και ένα φορτηγό KAMAZ διαμορφωμένο σε εκκλησία το οποίο μπορεί και να μεταφερθεί με μεταγωγικό αεροσκάφος. Ο Επίσκοπος Σάββας που είναι προϊστάμενος της θρησκευτικής υπηρεσίας του ρωσικού στρατού έχει στο ενεργητικό του περισσότερα από 450 άλματα με αλεξίπτωτο.
Οι στρατιωτικοί ιερείς που υπηρετούν στις ειδικές δυνάμεις είναι αλεξιπτωτιστές με μέσο όρο τα 250 άλματα. Στα σακίδια αυτών των ιερέων υπάρχουν όλα τα απαραίτητα για μια λειτουργία κάτω από αντίξοες συνθήκες. Οι στρατιωτικοί ιερείς που υπηρετούν στις ειδικές δυνάμεις έχουν στην διάθεση τους και ένα φορτηγό KAMAZ διαμορφωμένο σε εκκλησία το οποίο μπορεί και να μεταφερθεί με μεταγωγικό αεροσκάφος. Ο Επίσκοπος Σάββας που είναι προϊστάμενος της θρησκευτικής υπηρεσίας του ρωσικού στρατού έχει στο ενεργητικό του περισσότερα από 450 άλματα με αλεξίπτωτο.
Κυριακή 3 Φεβρουαρίου 2013
Σάββατο 2 Φεβρουαρίου 2013
Asteroid, Planets and Comet, Oh My - Feb. 2013 Skywatching Video
Asteroid 2012 DA14 to sweep close on February 15, 2013
Asteroid 2012 DA14 on February 15, 2012
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A near-Earth asteroid – called 2012 DA14 by astronomers – will pass very close to Earth on February 15, 2013. Astronomers estimate that, when it’s closest to us, it’ll be within the orbit of the moon (which is about 240,000 miles away), and within the orbits of geosynchronous satellites (about 26,000 miles up). 2012 DA14 will be about 21,000 miles (35,000 kilometers) away. It will not strike Earth in 2013. Astronomers’ calculations of asteroid orbits can be trusted. After all, even decades ago, they knew enough about calculating orbits to send people to the moon and bring them safely back, and today we are able place our space vehicles in orbit around objects as small as asteroids.
So, no, 2012 DA14 won’t strike us in 2013. There was a remote possibility it might strike us in 2020, but that possibility has been ruled out also.
What will happen when Asteroid 2012 DA14 passes closely in 2013?
What will happen when it passes us? The short answer is … nothing. On the day it passes, most of us won’t see it or be aware of its passage, in any way. The asteroid won’t alter the tides. It won’t cause volcanoes. It’ll just sweep closely past us – as millions of asteroids have done throughout Earth’s four-and-a-half-billion-year history – some in your own lifetime.
The asteroid will be within range for small telescopes and solidly mounted binoculars, used by experienced observers who have access to appropriate stars charts. Here’s what NASA says about its visibility:
On [February 15, 2013], the asteroid will travel rapidly from the southern evening sky into the northern morning sky with its closest Earth approach occurring about 19:26 UTC when it will achieve a magnitude of less than seven, which is somewhat fainter than naked eye visibility. About 4 minutes after its Earth close approach, there is a good chance it will pass into the Earth’s shadow for about 18 minutes or so before reappearing from the eclipse. When traveling rapidly into the northern morning sky, 2012 DA14 will quickly fade in brightness.
What do we know about asteroid 2012 DA14?
Asteroid 2012 DA14 is a little guy, compared to some asteroids, although its size has not been pinned down precisely. It is thought to be about 45 meters across (nearly 150 feet across), with an estimated mass of about 130,000 metric tons.
If a space object 150 feet wide were to strike our planet, it wouldn’t be Earth-destroying. But it has been estimated that it would produce the equivalent of 2.4 megatons of TNT. How does that compare with other known impact events on Earth? In 1908, in a remote part of Russia, an explosion killed reindeer and flattened trees. But no crater was ever found. Scientists now believe a small comet struck Earth. That event has been estimated at 3 to 20 megatons. So 2012 DA14 is in the same approximate realm as the Tunguska comet (which, actually, might have been an asteroid instead). It would not destroy Earth, but it could flatten a city.
Of course, about 70% of our world is covered by oceans. That means the most likely landing spot of any incoming asteroid is in the water – not on a city or other populated area.
Astronomers at the Observatorio Astronómico de La Sagra in Spain discovered 2012 DA14 in early 2012. We know 2012 DA14′s orbit is similar to that of Earth. That is one reason the asteroid eluded astronomers until recently. You can be sure that many astronomers are carefully tracking 2012 DA14 now.
The orbit of 2012 DA14 is an inclined ellipse. In other words, it’s tilted sightly with respect to Earth’s orbit around the sun, and, like Earth’s orbit, it’s not circular but elliptical – like a circle that someone sat down on.According to Bad Astronomer Phil Plait, who appears to have used a computer program to look at its orbit:
The asteroid spends most of its time well away from our planet. However, the path of the rock does bring it somewhat close to the Earth twice per orbit, or about every six months. The last time it passed us was on February 16 [2012], when it was about 2.5 million km (1.5 million miles) away, equal to about 6 times the distance to the moon. That’s usually about the scale of these encounters — it misses us by quite a margin.
If we know it will miss us in 2013 and in 2020, why are astronomers still watching? In fact, the orbit of 2012 DA14 is not entirely pinned down, although it is known well enough to say for sure: it will not hit us next year, or in 2020.
But it will come close on February 15, 2013! It should be close enough to catch the attention of virtually everyone on Earth in February 2013, on what’s sure to be a media field day.
Will 2012 DA14 strike Earth in 2020?
No. In March 2012, when a collision between 2012 DA14 and Earth in 2020 was still remotely possible, I asked astronomer Donald Yeomans to clarify the risk. Yeomans is, among other things, manager of NASA’s Near-Earth Object Program Office at NASA’s Jet Propulsion Laboratory. In March 2012, he told EarthSky that a 2020 collision between Earth and asteroid 2012 DA14 was …
… approximately one chance in 83,000, with additional remote possibilities beyond 2020. However, by far the most likely scenario is that additional observations, especially in 2013, will allow a dramatic reduction in the orbit uncertainties and the complete elimination of the 2020 impact possibility.
It turned out they didn’t have to wait until 2013. By May, 2012, astronomers had ruled out even the remote possibility of a 2020 collision.
Still, 2012 DA14 and asteroids like it are sobering.
Bottom line: The near Earth asteroid 2012 DA14 will have a very close pass near Earth on February 15, 2013. It will sweep approximately 21,000 miles from us – much closer than the moon’s orbit and closer than geosynchronous satellites. It will not strike Earth. Its orbit around the sun can bring it no closer to the Earth’s surface on February 15, 2013 than 3.2 Earth radii.
Παρασκευή 1 Φεβρουαρίου 2013
Πέμπτη 31 Ιανουαρίου 2013
Τετάρτη 30 Ιανουαρίου 2013
Record Close Asteroid Flyby Only Weeks Away | 2012 - DA14 | NASA Space Science
ΚΑΙ ΟΜΩΣ ΙΣΩΣ ΚΑΙ ΝΑ ΕΡΧΕΤΑΙ ΤΟ ΤΕΛΟΣ ΤΟΥ ΚΟΣΜΟΥ.ΓΡΗΓΟΡΗΤΑΙ ΚΑΙ ΠΡΟΣΕΥΧΕΣΘΑΙ.
Visit my website at http://www.junglejoel.com - on February 15th, 2012, an asteroid named 2012 - DA14, about half the size of a football field, will fly within 17,200 miles of Earth - that's closer than many man-made satellites. Astronomers have never seen an object this large come so close to our planet. Please rate and comment, thanks!
Video Credits: NASA
Visit my website at http://www.junglejoel.com - on February 15th, 2012, an asteroid named 2012 - DA14, about half the size of a football field, will fly within 17,200 miles of Earth - that's closer than many man-made satellites. Astronomers have never seen an object this large come so close to our planet. Please rate and comment, thanks!
Video Credits: NASA
Τρίτη 29 Ιανουαρίου 2013
Δευτέρα 28 Ιανουαρίου 2013
Κυριακή 27 Ιανουαρίου 2013
Hypersonic 'SpaceLiner' Aims to Fly Passengers in 2050
Hypersonic 'SpaceLiner' Aims to Fly Passengers in 2050
by Jeremy Hsu, SPACE.com Senior Writer
Date: 24 January 2013 Time: 11:36 AM ET
A hypersonic "SpaceLiner" would whisk up to 50 passengers from Europe to Australia in 90 minutes. The futuristic vehicle would do so by riding a rocket into Earth's upper atmosphere, reaching 24 times the speed of sound before gliding in for a landing.
Many challenges still remain, including finding the right shape for the vehicle, said Martin Sippel, project coordinator for SpaceLiner at the German Aerospace Center. But he suggested the project could make enough progress to begin attracting private funding in another 10 years and aim for full operations by 2050.
The current concept includes a rocket booster stage for launch and a separate orbiter stage to carry passengers halfway around the world without ever making it to space. Flight times between the U.S. and Europe could fall to just over an hour if the SpaceLiner takes off — that is, if passengers don't mind paying the equivalent of space tourism prices around several hundred thousand dollars.
"Maybe we can best characterize the SpaceLiner by saying it's a kind of second-generation space shuttle, but with a completely different task," Sippel said.
SpaceLiner passengers would have eight minutes to experience the rocket launch before they reached an altitude of about 47 to 50 miles (75 to 80 kilometers). That falls short of the 62-mile (100-km) boundary considered the edge of space, but even a suborbital flight would allow SpaceLiner to glide back to Earth at hypersonic speeds of more than 15,000 mph (25,200 kph).
Relying on rocket power
The rocket-powered design stands out compared with other proposed hypersonic jets, which feature new air-breathing engine concepts. European aerospace giant EADS previously unveiled a hypersonic jet concept that would rely mainly upon air-breathing ramjets to reach cruising speeds of Mach 4 — faster than the supersonic Concorde's Mach 2 performances but far slower than the SpaceLiner's Mach 24 goal.
SpaceLiner's European project planners say their reliance upon proven rocket technology could allow their vehicle to fly sooner rather than later. They plan to use liquid oxygen and hydrogen rocket propellants so that the rocket engines leave only water vapor and hydrogen in the atmosphere. [Video: How DARPA's HTV-2 Hypersonic Bomber Test Works]
"We will not try to improve the performance of the engine but would like to have it more reusable," Sippel told TechNewsDaily.
The empty rocket stage from SpaceLiner would return to Earth immediately after launch in preparation for reuse. An aircraft could grab the rocket stage in midair, tow it toward an airfield and release it for an autonomous gliding landing.
Chances of survival
But big challenges remain before SpaceLiner can take off. Researchers first must finalize a design shape capable of surviving the intense heat created by gliding at hypersonic speeds through the upper atmosphere. New cooling technologies and improved heat shielding for SpaceLiner's wing "leading edge" could help in that case.
Launching like a rocket rather than taking off like an aircraft means SpaceLiner would remain restricted to suitable launch sites with uninhabited areas down range. The SpaceLiner also would need a careful flight path during its final landing approach — the "sonic boom" shock that accompanies aircraft traveling faster than the speed of sound can damage buildings on the ground at low altitudes.
"The profile of the vehicle is very similar to a rocket-propelled vehicle," Sippel explained. "We only have a small corridor in which we can fly safely and economically."
SpaceLiner's design will make use of study results from a FAST20XX (Future High-Altitude High-Speed Transport 20XX) project funded by the European Union and backed by researchers from Germany, Austria, Spain, Switzerland, Italy, Belgium, the Netherlands, France and Sweden. It can also draw lessons from upcoming efforts such as Project ALPHA by Aerospace Innovation GmbH — a space plane that aims to launch in midair from an Airbus A330 aircraft.
But future success ultimately depends upon the success of space tourism efforts by companies such as Virgin Galactic. If enough people prove willing to pay top dollar for suborbital flights as part of their travels around the world, Sippel envisions a fleet of SpaceLiners eventually making 10 to 15 flights per day
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Mission of Africa Command - What and Why.
Ο Διοικητής της Διοίκησης Αφρικής των ΗΠΑ, στρατηγός Κάρτερ Χαμ μιλάει στο Howard University, Washington DC, σχετικά με το ρόλο και την αποστολή των ΗΠΑ στρατιωτική διοίκηση της Αφρικής
حلب ضهرة عواد || أهالي الحي تبكي على الطفلة الشهيدة
ΔΗΤΕ ΕΝΑΝ ΑΓΑΝΑΚΤΗΣΜΕΝΟ ΠΑΤΕΡΑ ΝΑ ΒΑΣΤΑ ΣΤΗΝ ΑΓΚΑΛΙΑ ΤΟΥ ΤΟ ΑΠΟΚΕΦΑΛΙΣΜΕΝΟ ΠΑΙΔΙ ΤΟΥ ΚΑΙ ΤΟΥΣ ΑΛΑΛΑΓΜΟΥΣ ΤΟΥ ΠΛΗΘΟΥΣ.
Σάββατο 26 Ιανουαρίου 2013
Waterboard-Gate: CIA torture whistleblower jailed over agency leak
Ο πρώην πράκτορας της CIA ο οποίος επέβλεψε τη σύλληψη του άνδρα θεωρείται Αλ-Κάιντα ο τρίτος στην ιεραρχία, έχει καταδικαστεί σε δυόμισι χρόνια στη φυλακή για τη διαρροή διαβαθμισμένων πληροφοριών. Τζον Κυριάκου ήταν ο πρώτος που κρούουν τον κώδωνα κινδύνου για το πρόγραμμα βασανιστηρίων της Ουάσιγκτον - αργότερα αποκαλύπτοντας το όνομα του φερόμενου ως βασανιστής στο Γκουαντάναμο. Η CIA αρνήθηκε τις κατηγορίες και αναφέρεται στις βελτιωμένες τεχνικές ανάκρισης. Κυριακού υποστηρικτές του τον έπαινο για να αποκαλύψει την έκταση της χρήσης της CIA για βασανιστήρια στις φυλακές. Ακτιβιστής και συγγραφέας, Sibel Edmonds, αναφέρει ότι οι ΗΠΑ ταξινομεί πάρα πολλά δεδομένα - για την κάλυψη-up μερικές φορές αδικίες, και αυτό σημαίνει ότι μυημένους κάνοντας μια στάση θα κρατήσει πηγαίνει στη φυλακή.
16 dead in Egypt riot after soccer violence verdict
16 dead in Egypt riot after soccer violence verdict
By Aya Batrawy, Associated Press8:02a.m. EST January 26, 2013
CAIRO (AP)
— An Egyptian court sentenced 21 people to death Saturday on charges related to one of the world's deadliest incidents of soccer violence, touching off an attempted jailbreak and a riot that killed 16 in the Mediterranean port city that is home to most of the defendants.
The verdict follows deadly clashes between police and demonstrators on Friday, the second anniversary of the uprising that overthrew longtime leader Hosni Mubarak. Such cycles of violence, often lasting for weeks and costing dozens of lives, have occurred regularly over the past two years.
Die-hard soccer fans from both teams, known as Ultras, hold the police at least partially responsible for the Port Said deaths and criticize Egypt's President Mohammed Morsi for doing little to reform the force.
Al-Ahly Ultras in particular have been at the forefront of protests. But anger also is boiling in Port Said, where residents say they have been unfairly scapegoated.
Immediately after the verdict, two police were shot dead outside Port Said's main prison when angry relatives tried to storm the facility to free the defendants. Police fired tear gas and rubber bullets, as well as live rounds, at the crowd outside the prison, killing 14, security officials said. Hundreds were wounded. They spoke on condition of anonymity in line with regulations.
Security officials said the military is being deployed to Port Said — the second such deployment in less than 24 hours. The army was widely used to keep order by top generals who took over after Mubarak, but the military has kept a much lower profile since Morsi was elected as president in June.
Morsi cancelled a scheduled trip to Ethiopia Saturday and instead met for the first time with top generals as part of the newly-formed National Defense Council.
The military was also deployed overnight in the city of Suez after eight people died in clashes between security forces and protesters opposed to Morsi. Another protester was killed in Ismailiya, and security officials told the state news agency MENA that two policemen were killed in Friday's protests, bringing the death toll on the second anniversary of Egypt's uprising to 11.
Judge Sobhi Abdel-Maguid read out the death sentences related to the Feb. 1 riot in Port Said that killed 74 fans of the Cairo-based Al-Ahly team. Defendants' lawyers said all those sentenced were fans of the Port Said team, Al-Masry. Executions in Egypt are usually carried out by hanging.
The judge Saturday said in his statement read live on state TV that he would announce the verdict for the remaining 52 defendants on March 9.
Among those on trial are nine security officials, but none were handed sentences Saturday, lawyers and security officials say.
Fans of al-Ahly, whose stands were attacked by rival club Al-Masry in the Feb. 1 incident in Port Said, had promised more violence if the accused did not receive death sentences. In the days leading up to the verdict, Al-Ahly fans warned of bloodshed and "retribution". Hundreds of Al-Ahly fans gathered outside the Cairo sports club in anticipation of the verdict, chanting against the police and the government.
Before the judge could read out the names of the 21, families erupted in screams of "Allahu Akbar!" Arabic for God is great, with their hands in the air and waving pictures of the deceased. One man fainted while others hugged one another. The judge smacked the bench several times to try and contain reaction in the courtroom.
"This was necessary," said Nour al-Sabah, whose 17 year-old son Ahmed Zakaria died in the melee. "Now I want to see the guys when they are executed with my own eyes, just as they saw the murder of my son."
The verdict is not expected to calm tensions between the two rival teams. The judge is expected to make public his reasons for the death sentences March 9, when the remaining 52 defendants receive their sentences.
A Port Said resident and lawyer of one of the defendants given a death sentence said the verdict was nothing more than "a political decision to calm the public."
"There is nothing to say these people did anything and we don't understand what this verdict is based on," Mohammed al-Daw told The Associated Press by telephone.
"Our situation in Port Said is very grave because kids were taken from their homes for wearing green T-shirts," he said, referring to the Al-Masry team color.
The violence began after the Port Said's home team won the match, 3-1. Al-Masry fans stormed the pitch after the game ended, attacking Cairo's Al-Ahly fans.
Authorities shut off the stadium lights, plunging it into darkness. In the exit corridor, the fleeing crowd pressed against a chained gate until it broke open. Many were crushed under the crowd of people trying to flee.
Survivors of the riot described a nightmarish scene in the stadium. Police stood by doing nothing, they said, as fans of Al-Masry attacked supporters of the top Cairo club stabbing them and throwing them off bleachers.
Al-Ahly survivors said supporters of Al-Masry carved the words "Port Said" into their bodies and undressed them while beating them with iron bars.
While there has long been bad blood between the two rival teams, many blamed police for failing to perform usual searches for weapons at the stadium.
Both Al-Ahly Ultras and Al-Masry Ultras widely believe that ex-members of the ousted regime of Hosni Mubarak helped instigate the attack, and that the police at the very least were responsible for gross negligence. It is not clear what kind of evidence, if any, was presented to the court to back up claims that the attack had been orchestrated by regime officials.
"The police are thugs!" yelled relatives of the deceased inside the courtroom before the judge took the bench.
As is customary in Egypt, the death sentences will be sent to the nation's top religious authority, the Grand Mufti, for approval, though the court has final say on the matter.
All of the defendants — who were not present in the courtroom Saturday for security reasons — have the right to appeal the verdict.
The melee was the world's deadliest soccer violence in 15 years.
The Ultras are proud of their hatred for the police, who were the backbone of Mubarak's authoritarian rule. They then then directed their chants against the military rulers who took over after Mubarak's ouster.
Ultras from several Egyptian sports clubs were engaged in deadly clashes with police near the Interior Ministry headquarters in Cairo that killed 42 people less than three months before the soccer melee in Port Said.
Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
Παρασκευή 25 Ιανουαρίου 2013
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