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Τετάρτη 16 Μαΐου 2012

Children of War - Sierra Leone - January 2000



This is the story of the child soldiers who were drugged with cocaine to make them fight in a war fuelled by blood diamonds, and the child victims of mutilations. Can a permanent world court bring justice to a lost generation?
A deeply moving report on Sierra Leone's children of war. 
Sherieff Koroma is today in a schoolroom learning to read and write. Earlier in the year he was living a different life, his nickname was Captain Cut-Hand. After his house was burnt down by the RUF he escaped to the bush only to be found by rebels. They gave him the choice "do we kill you, or do you join us." He was then drugged up with cocaine and sent out to fight, mutilations became his trademark. With a smile on his face he describes how he earned respect as a brave fighter. "Whenever we attacked we children went first. We were fearless." With enough drugs, and with no other family apart from the rebels, children like Sherieff were easily manipulated. It is the child fighters who've been responsible for the worst atrocities in Sierra Leone. Isattu Kargbo, a girl the same age as Sherieff, recalls the day four boys came and cut off her hand. RUF leader Foday Sankoh vehemently denies his 'freedom fighters' are responsible for such mutilations. In an interview here, he blames the Nigerian led peacekeepers ECOMOG, "It's all lies" he says. The RUF he leads has no other purpose than to sustain itself and maintain power in Sierra Leone. It gathers wealth from the Sierra Leoneon diamond mines it controls. Sankoh believes that "the people were crying for war, and that was answered by God." Yet the people caught up in the war are sending out different prayers. "Sometines I get an urge to chop off more hands," Sherieff tells us, "I pray to God to remove this urge. I pray to God to help me kill myself."
SABC

Τρίτη 15 Μαΐου 2012

Cosmogonic THEORY OF THE UNIVERSE


It is a theory apopsis geniseos on the sun and generally the universe as you can imagine, through the little knowledge he has can someone with a lot of imagination, and it can be to exclude the possibility.The infinity of space outside the universal status quo in which we know, is something we do not know nor Malone will never know why we are just trapped in space and time, ie in our cosmic status quo.This vortex we suspect that we are a small universe in quotes, in a larger universe, which can neither be seen nor count it simply because we are locked into it.Here the theory Become universe within the universe.What happens within the solar system as we know, perhaps it is a microcosm of a larger dozens of suns, stars and not planets, but Suns, who could be said of course and the planets as we want alios.We know that life here on earth was born here after a conflict we had with the moon million years ago.But those who do not know is that the universe is our own created after a collision of two suns of many that exist, not in our universe, but in the larger universe.You can simply assume that our universe was created when two colliding suns who still burn!And it can not overturn the barrel, because it simply does not have data.As I said above we are trapped in the cosmic status quo and we can not escape because it is the large distance and time.It is exactly as it becomes the spoliation two sperm to be born a man, was born and our universe after the collision of two suns, like a small galaxies within the larger universe, with many suns, who wander far infinity, but we can not prove this because we are short of time and distance, and our knowledge of hundred years that we have around, not enough.
GEORGE PANAGIOTAKOPOULOS

musik time



U.S. navy video by Lt. Ian Schmidt. Released by Lt. j.g. Michael Hatfield. Navy Media Content Services (Video Provided Without Sound)
Remix of earlier video of the "Checkmates" of Strike Fighter Squadron (VFA) 211 fly sorties during Enterprises's 21st deployment.

Δευτέρα 14 Μαΐου 2012

Astronomy Picture of the Day



Astronomy Picture of the Day


2012 April 8
See Explanation.  Clicking on the picture will download 
the highest resolution version available.
Io: Moon Over Jupiter 
Image Credit: Cassini Imaging TeamSSIJPLESANASA

Explanation: How big is Jupiter's moon Io? The most volcanic body in the Solar System, Io (usually pronounced "EYE-oh") is 3,600 kilometers in diameter, about the size of planet Earth's single large natural satellite. Gliding past Jupiter at the turn of the millennium, the Cassini spacecraft captured this awe inspiring view of active Io with the largest gas giant as a backdrop, offering a stunning demonstration of the ruling planet's relative size. Although in the above picture Io appears to be located just in front of the swirling Jovian clouds, Io hurtles around its orbit once every 42 hours at a distance of 420,000 kilometers or so from the center of Jupiter. That puts Io nearly 350,000 kilometers above Jupiter's cloud tops, roughly equivalent to the distance between Earth and Moon. The Cassini spacecraft itself was about 10 million kilometers from Jupiter when recording the image data.

2012 April 2
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Tungurahua Erupts 
Image Credit & CopyrightPatrick Taschler
Explanation: Volcano Tungurahua sometimes erupts spectacularly. Pictured above, molten rock so hot it glows visibly pours down the sides of the 5,000-meter high Tungurahua, while a cloud of dark ash is seen being ejected toward the left. Wispy white clouds flow around the lava-lit peak, while a star-lit sky shines in the distance. The above image was captured in 2006 as ash fell around the adventurous photographer. Located in EcuadorTungurahua has become active roughly every 90 years for the last 1,300 years.


2012 March 31
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Paris by Night 
Image Credit & Copyright: Serge Brunier (TWAN)
Explanation: Do you recognize the lights of Paris in this picture? In the cityscape taken on March 25 from the top of the 210 meter tall Montparnasse skyscraper, many will spot the looming Eiffel Tower, or the large domed structure of Les Invalides (right), or the colorfully lit elevated Metro train line gently curving toward picture center. You can even pick out the Arc de Triomphe close to the horizon on the right. But regardless of your location, the celestial lights near the western horizon should look very familiar. The lovely triple conjuntion of brilliant Venus (top), Jupiter, and a young crescent Moon was visible in evening skies around planet Earth.


2012 March 28
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Earthshine and Venus Over Sierra de Guadarrama 
Image Credit: Daniel Fernández (DANIKXT)
Explanation: What just above that ridge? The Moon. Specifically, the Earth's Moon was caught just above the horizon in a young crescent phase. The familiar Moon might look a bit odd as the exposure shows significant Earthshine -- the illumination of the part of the Moon hidden from direct sunlight by the sun-reflecting Earth. Also captured in the image is the bright planet Venus on the right. Venus and Jupiter passed only three degrees from each other last week during a photogenic planetary conjunction. The above image was taken two days ago near Madrid, Spain. The foreground horizon silhouette includes some of the Seven Peaks of the Sierra de Guadarrama mountain range. Just a few minutes after this picture was taken, the Moon set.


2012 March 25
See Explanation.  Clicking on the picture will download 
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Barred Spiral Galaxy NGC 1300 
Image Credit: Hubble Heritage TeamESANASA
Explanation: Big, beautiful, barred spiral galaxy NGC 1300 lies some 70 million light-years away on the banks of the constellation Eridanus. This Hubble Space Telescope composite view of the gorgeous island universe is one of the largest Hubble images ever made of a complete galaxy. NGC 1300 spans over 100,000 light-years and the Hubble image reveals striking details of the galaxy's dominant central bar and majestic spiral arms. In fact, on close inspection the nucleus of this classic barred spiral itself shows a remarkable region of spiral structure about 3,000 light-years across. Unlike other spiral galaxies, including our own Milky Way, NGC 1300 is not presently known to have a massive central black hole.


2012 March 21
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Aurora Over Iceland 
Image Credit & Copyright: Daniel Lopez (El Cielo de Canarias)
Explanation: If you see a sky like this -- photograph it. Three nights ago in Iceland, an adventurousphotographer (pictured) chanced across a sky full of aurora and did just that. Afterwards, by stitching together five smaller photographs, the entire aurora-lit sky was recreated in this 180-degree panorama taken fromVatnajökull glacier. Auroras are sparked by energetic particles from the Sun impacting the magnetic environment around the Earth. Resultant energetic particles such as electrons and protons rain down near the Earth's poles and impact the air. The impacted air molecules obtain excited electrons, and when electrons inoxygen molecules fall back to their ground state, they emit green light. Auroras are known to have manyshapes and colors.


2012 March 18
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Jupiter and Venus from Earth 
Image Credit: Marek Nikodem (PPSAE)
Explanation: It was visible around the world. The sunset conjunction of Jupiter and Venus was visible last week almost no matter where you lived on Earth. Anyone on the planet with a clear western horizon at sunset could see them. This week the two are still notable, even though Jupiter has sunk below the brighter Venus. And if you look higher in the sky you can see Mars as well. Pictured above, a creative photographer traveled away from the town lights of Szubin, Poland to image a near closest approach of the two planets almost a week ago. The bright planets were separated only by three degrees and his daughter striking a humorous pose. A faint red sunset still glowed in the background. Although this conjunction is drawing to a close, another conjunction between Venus and Jupiter will occur next May.



2012 February 29
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Moon and Planets Over Catalonia 
Image Credit & CopyrightJuan Carlos Casado (TWAN)
Explanation: Venus and Jupiter will appear unusually close in the sky over the next month. The planetary conjunction will be easily visible to the unaided eye because Venus will appear brighter than any background star, and Jupiter will be nearly as bright. To see the near-alignment, simply look to the west after sunset. At their closest, on March 15, the two planets will appear only about three degrees apart. The planets will not be significantly closer in space - Venus will just be passing nearly in front of Jupiter as seen from the Earth. In the above image composite taken late last week from Catalonia, Spain, a bright crescent moon appears to the right of Venus, while Jupiter appears near the top of the image. The distant sun-illuminated spheres were photographed behind a sculpture depicting the legendary battle between a warrior and a dragon. A gallery of conjunction images is visible on the Asterisk -- APOD's discussion board. Please feel free to contribute. The next Jupiter-Venus conjunction will occur in May 2013.
2012 February 12
See Explanation.  Clicking on the picture will download 
the highest resolution version available.
Orion in Gas, Dust, and Stars 
Image Credit & Copyright: Rogelio Bernal Andreo (Deep Sky Colors)
Explanation: The constellation of Orion holds much more than three stars in a row. A deep exposure shows everything from dark nebula to star clusters, all embedded in an extended patch of gaseous wisps in the greaterOrion Molecular Cloud Complex. The brightest three stars on the far left are indeed the famous three starsthat make up the belt of Orion. Just below Alnitak, the lowest of the three belt stars, is the Flame Nebula, glowing with excited hydrogen gas and immersed in filaments of dark brown dust. Below the frame center and just to the right of Alnitak lies the Horsehead Nebula, a dark indentation of dense dust that has perhaps the most recognized nebular shapes on the sky. On the upper right lies M42, the Orion Nebula, an energetic caldron of tumultuous gas, visible to the unaided eye, that is giving birth to a new open cluster of stars. Immediately to the left of M42 is a prominent bluish reflection nebula sometimes called the Running Manthat houses many bright blue stars. The above image, a digitally stitched composite taken over several nights, covers an area with objects that are roughly 1,500 light years away and spans about 75 light years.

Starchild Ερώτηση του μήνα για τον Μάρτιο 2000

Ερώτηση:

Τι είναι το έτος φωτός και πώς χρησιμοποιείται;
Μεταφορά

Απάντηση:

Ένα έτος φωτός είναι μια μονάδα της απόστασης. Είναι η απόσταση που μπορεί να ταξιδέψει το φως σε ένα έτος. Φως κινείται με ταχύτητα περίπου 300.000 χιλιομέτρων (km) ανά δευτερόλεπτο. Έτσι, μέσα σε ένα χρόνο, μπορεί να ταξιδέψει περίπου 10 τρισεκατομμύρια χιλιόμετρα. Περισσότερα σ. recisely, ένα έτος φωτός ισούται με 9.500.000.000.000 χιλιόμετρα.
Γιατί θα θέλατε μια τέτοια μεγάλη μονάδα της απόστασης; Λοιπόν, στη Γη, ένα χιλιόμετρο μπορεί να είναι μια χαρά. Είναι λίγες εκατοντάδες χιλιόμετρα από τη Νέα Υόρκη στην Ουάσινγκτον, DC? Είναι μερικές χιλιάδες χιλιόμετρα από την Καλιφόρνια στο Μαίην. Στο σύμπαν, ο χιλιόμετρο είναι ακριβώς πάρα πολύ μικρή για να είναι χρήσιμες. Για παράδειγμα, η απόσταση μέχρι το επόμενο πλησιέστερο μεγάλο γαλαξία,ο γαλαξίας της Ανδρομέδας, είναι 21 τετράκις εκατομμύρια χιλιόμετρα. Αυτό είναι 21.000.000.000.000.000.000 χιλιόμετρα. Αυτό είναι ένας αριθμός τόσο μεγάλος ώστε να καθίσταται δύσκολο να γράψω και δύσκολο να ερμηνευθούν. Έτσι, οι αστρονόμοι χρησιμοποιούν άλλες μονάδες της απόστασης.
Σε μας ηλιακό σύστημα, έχουμε την τάση να περιγράφουν αποστάσεις όσον αφορά την αστρονομική μονάδα (AU). Η ΑΕ ορίζεται ως η μέση απόσταση μεταξύ της Γης και του Ήλιου. Είναι περίπου 150 εκατομμύρια χιλιόμετρα (93 εκατομμύρια μίλια). Ο υδράργυρος μπορεί να ειπωθεί για να είναι περίπου 1/3 των ΑΕ από τον Ήλιο και τον Πλούτωνα μέσο όρο περίπου 40 AU από τον Ήλιο. Η Αφρικανική Ένωση, ωστόσο, δεν είναι αρκετά μεγάλη από μια μονάδα, όταν αρχίσουμε να μιλάμε για τις αποστάσεις των αντικειμένων έξω από το ηλιακό μας σύστημα.
Για αποστάσεις σε άλλα μέρη του Γαλαξία μας (ή ακόμη περισσότερο), οι αστρονόμοι χρησιμοποιούν τις μονάδες του φωτός ή του χρόνου παρσέκ . Το έτος φωτός έχουμε ήδη καθοριστεί. Το παρσέκ είναι ίσο με το 3,3 έτη φωτός. Χρησιμοποιώντας το έτος φωτός, μπορούμε να πούμε ότι:
  • Ο Καρκίνος σουπερνόβα υπόλοιπο είναι περίπου 4.000 έτη φωτός μακριά.
  • Ο Γαλαξίας μας είναι περίπου 150.000 έτη φωτός.
  • Ο γαλαξίας της Ανδρομέδας είναι 2,3 εκατομμύρια έτη φωτός μακριά.

The Flight Deck of Space Shuttle Endeavour



Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
2012 April 18
See Explanation.  Clicking on the picture will download
 the highest resolution version available.
The Flight Deck of Space Shuttle Endeavour 
Image Credit & CopyrightBen Cooper (Launch Photography), Spaceflight Now

Explanation: What would it be like to fly a space shuttle? Although the last of NASA's space shuttles has now been retired, it is still fun to contemplate sitting at the controls of one of the humanity's most sophisticated machines. Pictured above is the flight deck of Space Shuttle Endeavour, the youngest shuttle and the second to last ever launched. The numerous panels and displays allowed the computer-controlled orbiter to enter the top of Earth's atmosphere at greater than the speed of sound and -- just thirty minutes later -- land on a runway like an airplane. The retired space shuttles are now being sent to museums, with Endeavour being sent to California Space Center in Los Angeles, California, Atlantis to the Kennedy Space Center Visitor Complex on Merritt Island, Florida, and Discovery to the Udvar-Hazy Annex of the National Air and Space Museum in Chantilly, Virginia. Therefore sitting in a shuttle pilot's chair and personally contemplating the thrill of human space flight may actually be in your future.

Developing Gallery: Flyover of Space Shuttle Discovery atop a 747
Tomorrow's picture: open space


http://360vr.com/2011/06/22-discovery-flight-deck-opf_6236/index.html

Κυριακή 13 Μαΐου 2012

ΤΟ ΦΤΥΑΡΙ

ETΣΙ ΠΟΥ ΤΟ ΒΛΕΠΩ ΜΟΥ ΒΓΑΙΝΟΥΝ ΚΑΙ ΤΑ ΔΙΚΑ ΜΟΥ ΑΠΩΘΗΜΕΝΑ!

ΙΠΤΑΜΕΝΟ BOAT


Flying Hovercraft
Hovercrafts that float slightly above surface are so last year. The Flying Hovercraft takes things to new heights.
It might be some sort of social status to own your own yacht, but who needs that boring ol’ thing when you can own something that can float atop water and fly? If you’re looking for a unique adventure without renting or going on some sort of vacation, look no further than the The Flying Hovercraft from Hammacher Schlemmer.
The hovercraft doesn’t just lift itself a few inches above water; this particular model has wings that can soar up to 20 inches above an all-terrain surface. The wings utilize powerful lift fans to speed up to 70 mph in the air using a liquid-cooled gasoline engine. A 34-inch fan in the back also helps maintain velocity and blows competitor hovercrafts literally out of the water. Lastly, a PVC cover will protect passengers from falling off the boat, wind whiplashes, or getting to heavily splashed by the water.
Flying Hovercraft“Operating in fresh or saltwater and up to 30 percent inclines over sand, mud, grass, swamp, desert, ice, and snow, its wings and horizontal elevator enable pilots to simply hop over water- or land-based obstacles,” the product page states.
Weighing at 1,100 pounds, the hovercraft is made with as lightweight a material as possible with wood and carbon composite structure framing the boat. Though the product features a bright yellow shade, Hammacher Schlemmer says the product is customizable, and perhaps color is included in that design option.
Best of all, the Flying Hovercraft operates like a toy. The main controls are based on a joystick that the pilot pushes, twists, and pulls to accelerate, turn, and brake. It looks roomy enough to fit up to three passengers, four if you squeeze, as long as the overall weight does not exceed the safety precaution of 600 pounds. Despite the hovercraft’s power to fly, it still merely registers as a boat and pilots will have to have the appropriate license to operate it.
For the coolest gizmo in your neighborhood, fork up $190,000 to Hammacher Schlemmer and let your flying dreams come true. Visit the official product page for a video of the Flying Hovercraft in action.

Read more: http://www.digitaltrends.com/lifestyle/is-it-a-boat-or-a-plane-the-flying-hovercraft-accomplishes-both-tasks/#ixzz1ugxhprmK

Σάββατο 12 Μαΐου 2012

SOLAR STORMS


Coronal mass ejection from monster sunspot AR 1476 due May 14

Sunspot AR 1476 released a coronal mass ejection, or CME, last night. It’ll arrive in Earth’s vicinity on May 14 and deliver a glancing blow.
UPDATE MAY 12, 2012 1:15 P.M. CDT (18:15 UTC) Spaceweather.com is reporting that a coronal mass ejection, or CME, began racing away from the sun’s surface yesterday evening, according to U.S. clocks (May 11 at 6:54 p.m. CDT or 23:54 UTC). Moving at some 1,000 kilometers per second (600 miles per second), the fast-moving cloud of high energy solar particles will arrive in Earth’s vicinity on May 14 around 9:30 a.m. CDT (14:30 UTC). No ill effects to humans or Earth will occur, but satellites in orbit, telecommunications, and GPS, might be affected.

This animation depicts a coronal mass ejection, or CME, which left the sun on May 11 and will give a glancing blow to Earth (yellow dot) on May 14. Mars (red dot) will take a more direct hit. Image Credit: Goddard Space Weather Lab
As you can see from the revised forecast track above, prepared by analysts at the Goddard Space Weather Lab, Earth (yellow dot) will receive a glancing blow from the CME. Mars (red dot) will be struck more directly.
This monster sunspot region has been witnessed by many from across Earth’s surface during this past week. It has released some M-class flares, such as the one shown below, but no CMEs until last night.

Sunspot region AR 1476 released an M-class solar flare on May 9, 2012. No CME was released at that time, but a stronger flare did release a CME last night (May 11, 2012). It is due to arrive in Earth's vicinity on May 14. Image Credit: NASA/SDO
Check out the photographs below from photographers from around the globe.
MAY 11, 2012 10:17 CDT (15:17 UTC) Space weather forecasters at NOAA estimate a 75% chance of M-class solar flares and a 20% chance of X-flares during the next 24 hours from the large sunspot AR 1476. This sunspot is directly facing our planet, so if a flare does occur its effects on the space weather environment are likely to pass our way. NOAA’s Space Weather Prediction Center said today (May 11, 2012):
NOAA Region 1476, now right in the middle of the solar disk, continues to dissipate its energy in relatively small bursts of modest flares and weak CMEs. That output belies its appearance — large sunspots and entangled magnetic fields. Forecasters are vigilant. Watch here should things break loose.
What are the effects of a solar flare on Earth? These flares have been happening throughout human evolution. They’ve been happening for billions of years of Earth history. So there is no danger to our Earth or our human bodies. Our technology can take a hit, however, when a major flare occurs. Destructive effects might occur to satellites in orbit, power grids and GPS systems. Perhaps the most famous example of a solar flare causing a power failure occurred in 1989 in Quebec, when the power went out for nine hours due to a large solar flare.
This monster region of sunspots on the sun’s surface – AR 1476, as long as 10 planet Earths – has been turned in Earth’s direction this week. It has produced M-class solar flares already, including an M5-class solar flare on the morning of May 10, 2012. It might soon produce an X-flare, the most powerful kind of solar flare, scientists say.
Amateur astronomers are also watching this solar flare, and taking some wonderful photos of it, such as the beautiful photo below from Stefano De Rosa in the city of Turin in northern Italy.

Sunspot sunrise over Turin by Stefano De Rosa
The Space Weather Prediction Center has also been speaking of radio blackouts this week, caused by this flare and the EarthSky community on this website and our Facebook page has reported radio blackouts in various places in the world.
Jason Samenow of the Washington Post wrote earlier this week:
While the sunspot region is being called one of the largest in years – as long as 10 Earths and 60,000 miles wide, NOAA’s Space Weather Prediction Center notes it’s just one-third in area of the large regions of the Halloween Storms in 2003.
Another great photo came from Zlatan Merakov in Smolyan, Bulgaria.

Sunspot 1476 from EarthSky Facebook friend Zlatan Merakov in Smolyan, Bulgaria. The inset shows the size of the sunspot region compared to Earth.
Zlatan Merakov posted the image above on our Facebook page early this morning, saying:
AR 1476, one of the greatest sunspots I’ve ever observed, shot about one hour ago in visible light and compared in size to Earth, our planet.
VegaStar Carpentier in Paris posted this photo to our Facebook page this morning.

VegaStar Carpentier in Paris posted this photo of AR 1476 on the morning of May 11, 2012.
Stay tuned for more on this mighty sunspot region.
Bottom line: Sunspot region AR 1476 has produced an M5-class solar flare this morning (May 10, 2012), and might soon produce an X-flare, the most powerful kind of solar flare, scientists say. NOAA forecasters are estimating a 65% chance of more M-class flares and a 10% chance of X-flares during the next 24 hours.

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