Showing posts with label Universe. Show all posts
Showing posts with label Universe. Show all posts

Friday, February 15, 2013

Marvelphabet

52 Marvel characters, rendered here with minimalistic typography that's both heroic and villainous. How many can you identify?
















Source: baboondesign.blogspot.com  /  via: laughingsquid.com











New on the Internet today: "Marvelphabet", a pair of stylized alphabets yolked around figures from the Marvel Universe. Designer Mike Baboon writes:

I'd long considered doing a superhero-themed alphabet but I'd resisted for a variety of reasons, including the sheer immense scope of the superhero universe and the fact that there were other similar pieces out there.

Ultimately, however, superheroes and comics were such an important part of my childhood that I couldn't ignore them. So I added a bit of a challenge: I wanted to represent 26 heroes and 26 villains from a specific universe. I wanted to stick to their face and upper torso only (which meant, among other things, no wheelchair for "X" or extra arms for "o")

The hero alphabet definitely trends easier than the baddies. How many can you identify from each?

Prints, tees, mobile shells, and more available at Society 6 and RedBubble.

Cap tip: Laughing Squid























Source: baboondesign.blogspot.com





















Source: baboondesign.blogspot.com







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Thursday, February 14, 2013

Watch Live as Asteroid 2012 DA14 Whizzes Past Earth


Want to keep tabs on asteroid 2012 DA14 as it whizzes past Earth tomorrow (Feb. 15)? NASA TV and several online astronomy outlets will be tracking this asteroid as it makes its record-setting close shave. This marks the first time there has been an asteroid of this size passing this close that we’ve known a year beforehand. No, there’s no chance it will hit us, but it will come within 27,600 kilometers (17,150 miles) from the surface of the Earth, inside the ring of geosynchronous satellites girdling our planet Earth. It will closest to Earth at 2:25 p.m. EST (19:25 UTC).


Find out how you can watch on TV or online as this 50 meter- (164 feet-) wide space rock goes by:
(...)
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Eye-Popping Interactive Panorama from the Curiosity Rover

Curiosity Rover's Self Portrait at 'John Klein' Drilling Site, which combines dozens of exposures taken by the rover's Mars Hand Lens Imager (MAHLI) during the 177th Martian day, or sol, of Curiosity's work on Mars (Feb. 3, 2013). Credit: NASA/JPL-Caltech/MSSS

Curiosity Rover’s Self Portrait at ‘John Klein’ Drilling Site, which combines dozens of exposures taken by the rover’s Mars Hand Lens Imager (MAHLI) during the 177th Martian day, or sol, of Curiosity’s work on Mars (Feb. 3, 2013). Credit: NASA/JPL-Caltech/MSSS


There’s an incredible new interactive panorama from the latest Curiosity rover’s self-portrait and surroundings at the “John Klein” drilling site. It was put together by photographer Andrew Bodrov and combines the recent self-portrait and other images to create a full 360-degree panorama created from hundreds of images. The mosaic stretches about 30,000 pixels width.


Click here to see (and go play with) the panorama.
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I’ve Always Dreamed of Being an Astronaut…

Astronaut bedding from Snurk (www.snurkbeddengoed.nl/)

Astronaut bedding from Snurk (www.snurkbeddengoed.nl/)


After seeing this on Google+, I knew I had to do a Bad Astronomer-like “want” post. This is a definite want. You can now be the first in your galaxy to have this awesome new bedding set. The duvet and pillow comes from a Dutch bedding shop named Snurk (that’s Dutch for ‘snoring’): “Underneath these sheets you will dream far beyond the stars…lie down, close your eyes and feel gravity decrease instantly.” They are now taking pre-orders, available in March.


Hat tip to Michael Interbartolo/Edward Burke




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Proof That True Love Exists

Bill & Glad have been married for over 50 years and are a reminder that love can stand the test of time, in sickness and in health. Can you pass the tissues please?









Tissues ready? Press play.



CVC Films produces short works aimed to, "help you explore those unavoidable questions about life, the universe and everything in it." Even if you are a Valentine's Day cynic, this story will warm your heart.






New Research Sheds Light On Black Hole Growth

The black hole that has grown the most can be found in the Sombrero galaxy . The researchers estimate that this black hole has been swallowing the equivalent of one Sun every twenty years and is now over 500 million times as heavy as the Sun.  ESO Public Image Release

The black hole that has grown the most can be found in the Sombrero galaxy . The researchers estimate that this black hole has been swallowing the equivalent of one Sun every twenty years and is now over 500 million times as heavy as the Sun. ESO Public Image Release


In a new study led by University of Central Lancashire astronomer Dr. Victor Debattista, researchers are looking into the mystery of how black holes grow and evolve. For many years, astronomers surmised black holes took on mass when their host galaxies merged, but now new modeling techniques show that black holes in spiral galaxies are forced to take on mass. (...)
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See an Asteroid’s-Eye-View of Friday’s Close Approach Between 2012 DA14 and Earth


If you haven’t heard yet, this Friday, February 15, 2013 will be a close flyby of an asteroid named 2012 DA14. It’s turning out to be a highly anticipated event, as it will pass just 27,630 kilometers (17,168 miles) from the surface of the Earth, well within the range of many Earth-orbiting satellites. If you could watch the action from the vantage point of space, what would this flyby look like? Analytical Graphics, Inc., a company that creates modeling and analysis software for space, defense and other areas, has put together an animation which includes the asteroid’s trajectory as it approaches Earth, a closeup of the asteroid during its closest approach, a highlighted portion of Earth orbit that it is expected to pass through, and other interesting data.
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A Cosmic Rose for Your Spacey Valentine

A beautiful planetary nebula, Sh2-174. Credit: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF)

A beautiful planetary nebula, Sh2-174. Credit: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF)


We space-nerds like to express our amorous feelings, just like the rest of the population (although admittedly some of need more help/prodding in this area than others). And so just in time for Valentine’s Day comes this new image of a planetary nebula, which looks like a rose — or even a tulip – to share with your very spacey valentine.
(...)
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Lunar Exploration Company Offers the Public a Chance to Participate

Golden Spike: more human bootprints on the Moon, and you can help. Credit: Golden Spike.

Golden Spike: more human bootprints on the Moon, and you can help. Credit: Golden Spike.


Last December, when a private space exploration company named Golden Spike announced they are working to offer human expeditions to the Moon by 2020, they also said wanted to bring public along as an integral part of the company’s mission. Since their initial announcement, the Golden Spike team says they’ve been inundated with emails, letters and social media posts from people wanting to know how to take part, and how they could help speed the development of human lunar expeditions.


Today, The Golden Spike Company — which hopes to generate sustainable human lunar exploration with a series of commercial expeditions for nations, corporations, and individuals — began a 10-week Indiegogo crowdfunding campaign to enable a “participatory exploration program.” This isn’t funding the building of rockets and spaceships directly, but does allow the public to help the company accelerate their efforts.
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Tuesday, January 22, 2013

Active radar homing

A Kongsberg Defence & Aerospace Penguin anti-s...

Active radar homing is a missile guidance method in which a guided missile contains a radar transceiver and the electronics necessary for it to find and track its target autonomously. NATO brevity code for an active radar homing missile launch is Fox Three.

Advantages


There are two major advantages to active radar homing:

  • Because the missile is tracking the target, and the missile is typically going to be much closer to the target than the launching platform during the terminal phase, the tracking can be much more accurate and also have better resistance to ECM. Active radar homing missiles have some of the best kill probabilities, along with missiles employing track-via-missile guidance.

  • Because the missile is totally autonomous during the terminal phase, the launch platform does not need to have its radar enabled at all during this phase, and in the case of a mobile launching platform like an aircraft, can actually exit the scene or undertake other actions while the missile homes in on its target. This is often referred to as fire-and-forget capability and is a great advantage that modern air-to-air missiles have over their predecessors.


Disadvantages


There are three major disadvantages to active radar homing:

  • Since the missile has to contain an entire radar transceiver and electronics, it was until recently difficult to fit all of this into a missile without unacceptably increasing its size and weight. Even with today's miniaturisation making this possible, it is quite expensive to make these missiles since the sophisticated electronics within the missile are inevitably destroyed upon impact.

  • There is very little chance that targets with capable modern radar warning receiver would be unaware that an incoming missile is approaching them. This gives them sufficient time to take evasive action and deploy countermeasures. However, given the accuracy of this homing method, unless the target is especially maneuverable or the missile is not, there may not be much they can do to avoid being intercepted.

  • ARH-type missiles lose their effectiveness the closer the target is. Therefore, these types of missiles with this mounted equipment are only effective in long range confrontations.


Passive radiation homing


Many missiles employing this type of guidance have an extra trick up their sleeves; If the target does attempt to use noise jamming, they can in effect turn into an anti-radiation missile and home in on the target's radiation passively. This makes such missiles practically immune to noise jamming, in addition to removing the second disadvantage. Since they already have the radar receiver on board, this should not be a difficult feature to add (at least, it requires extra processing logic but little extra hardware).

Operation


Active radar homing is rarely employed as the only guidance method of a missile. It is most often used during the terminal phase of the engagement, mainly because since the radar transceiver has to be small enough to fit inside a missile and has to be powered from batteries, therefore having a relatively low ERP, its range is limited.[1] To overcome this, most such missiles use a combination of command guidance with an inertial navigation system (INS) in order to fly from the launch point until the target is close enough to be detected and tracked by the missile. The missile therefore requires guidance updates via a datalink from the launching platform up until this point, in case the target is maneuvering, otherwise the missile may get to the projected interception point and find that the target is not there. Sometimes the launching platform (especially if it is an aircraft) may be in danger while continuing to guide the missile in this way until it 'goes active'; In this case it may turn around and leave it to luck that the target ends up in the projected "acquisition basket" when the missile goes active. It is possible for a system other than the launching platform to provide guidance to the missile before it switches its radar on; This may be other, similar fighter aircraft or perhaps an AWACS.

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Colonial Viper

VIPER

The Colonial Viper is the primary fighter spacecraft type used by the human protagonists in the Battlestar Galactica fictional universe. Appearing in both the 1978 original series and the 2003 reimagined series, as well as various derivative works, the single-pilot spacecraft are carried aboard Battlestar Galactica and are the humans' main tools of defense against the fictional universe's antagonists - the cybernetic Cylon race.

The popularity of the original Battlestar Galactica series resulted in United States Air Force pilots nicknaming F-16 Fighting Falcons "Vipers".[1][2] When the reimagined series was created, the Viper was one of the elements that the designers wanted to carry through with minimal alteration.

Original series (1978, 1980)























Viper (1978, 1980)
Colonial viper original-series.JPG
Original-series Vipers in flight.
First appearance"Saga of a Star World"
AffiliationColonial Fleet
General characteristics
ArmamentsLasers

In the original run of Battlestar Galactica, the Colonial Viper is the only known fighter flown by Colonial Pilots, referred to as "Colonial Warriors". There is only one known model of Viper seen in the series. Some materials list the Viper as a "Starhound Viper" or "Starhound Class" fighter, based on information in the novelization of "Saga of a Star World".[3]

The Vipers are launched from a long tube in one of a Battlestar's landing bays, assisted by a powered catapult mechanism. It appears that a Battlestar can launch at least three Vipers from each bay at once. Vipers are loaded into the launch tubes atop rails which engage recesses in the bottom of the fuselage between the lower wings. The rail system ensures that the Viper remains on the centerline of the launch tube.

Vipers typically use all three of their engines for powered flight, and can use a "Turbo" boost for greater speed, analogous to a modern fighter plane's afterburner. A pilot can turn on or off each engine by a push button, as seen in the startup sequence anytime a Viper is preparing to take off. Vipers can also reverse thrust for rapid deceleration, a useful tactic when being pursued by enemy ships that would then tend to overshoot the Viper, placing them in a vulnerable position. Vipers are capable of atmospheric as well as space flight, and can land and take off from a planetary surface. Viper engines are designed to collect commonly occurring gases in planetary atmospheres and in space to power the ship's fusion reactor. Vipers are also capable of supporting the pilot for up to two weeks in a form of "suspended animation" for extremely long missions.

The main flight control of a Viper is a three buttoned joystick, similar to a jet fighter. The three buttons are labeled FIRE, TURBO and IM, with the fire button being red. The IM button is the reverse thruster. Notably in "Saga of a Star World" and "The Gun on Ice Planet Zero (Pt. 2)" some Vipers have STORES on the joystick instead of FIRE.

Armament consist of two directed energy weapons (referred to as "lasers" and "laser torpedoes" at separate points in the series, "The Long Patrol" and "Saga of a Star World" respectively) that are linked together to fire simultaneously. They can also be modified to carry fire suppression equipment, as shown in the "Fire In Space" episode where they are used to battle a fire on theGalactica after the Cylons crash explosives-laden fighters into the launch bays.

In the event of a crash landing, a Viper's cockpit can also be used as an escape pod, separating from the ship and parachuting to the ground. This system does not provide a soft landing—in fact, it can knock the pilot unconscious—but it is effective.[4] A G-suit is worn under the pilot's uniform for protection against gravitational forces, as seen in "Lost Planet of the Gods, Part I". The flight helmet worn by the Warrior pilots resembles an ancient Egyptian headdress and has no faceplate. Viper pilots from each Battlestar have differing forehead ornamentation on their helmets:Pegasus pilot helmets feature a flying horse, while Galactica pilot helmets have a bird design. According to some sources, the Universal wardrobe department came up with designs for other helmets if they had ever been needed-pilots from battlestar Cerberus would have had a three-headed dog on their helmets, pilots from the Prometheus would have had a hand holding a flaming torch, and those from the Solaria would have featured a burning sun.

Gear


Each Viper contains spacesuits for its pilot(s). While not normally worn, they can be brought out and donned if an EVA is necessary (e.g. for emergency repairs).[5] Vipers also contain emergency survival kits, which include a backpack with rations and a reflective blanket, a parka, and (following the capture and reverse-engineering of Cylon Centurions)[6] a manual with schematics of Cyloncircuitry.[4]

Variants


A "Recon Version" was piloted by Starbuck in "The Long Patrol". It possessed "nearly double the speed of a regular fighter", along with improved maneuverability, but lacked any armament due to the removal of the laser pumps. It also possessed C.O.R.A. (Computer, Oral Response Activated), a sultry female-voiced, voice-activated computer which doubled as an autopilot.

In the Galactica 1980 series, Vipers are shown to be newly capable of invisibility, which is explained in the episode "Galactica Discovers Earth". Other 1980 episodes indicate that a Colonial Warrior's uniform is meant to protect against the crushing effects of gravity, similar to an inertial damper. All Vipers also appear to be able to accommodate a passenger in the Galactica 1980series, as hinted at in the first episode of the TV series. This is seen with Jamie Hamilton swapping between Troy and Dillon's Vipers throughout the series, and with Xavier tricking Troy & Dillon to fly his (sabotaged) Viper in "Spaceball". Vipers also appear to have largish cargo bays for their size as each one carries the Colonial equivalent of a motorcycle.

The 1988 film Space Mutiny, which used special effects shots from the original Battlestar Galactica, referred to the ships as "Stingray Vipers".

More advanced, upgraded versions, the Azure class and Scarlet class, appear in Richard Hatch's re-launch novel series and in his attempted revival trailer "Battlestar Galactica: The Second Coming". The Scarlet class features swept forward wings much like the X-29 experimental fighter plane.

In the 2003 Reimagining of the series, an Original Series Viper can be seen in the starboard flight pod "museum".

Deployment


While Vipers can operate from land and (according to the novel) have some refueling bases, they are mostly deployed from Battlestars. Each Battlestar is known to carry 75 Vipers. The Galacticahosted four squadrons named Blue, Red, Green and Yellow. Members of Silver Spar squadron later joined from the Pegasus after the Battle of Gamoray.

Reimagined series (2003)























Colonial Viper
Battlestar Galactica - Viper Mark II.jpg
A pair of Mark II Vipers flying low (from "The Hand of God").
First appearanceMini Series, Part 1
AffiliationColonial Fleet
General characteristics
ArmamentsKinetic energy weapons
Conventional missiles

In the 2003 remake of Battlestar Galactica, the Viper series of starfighters are the Colonial Defense Force's primary space superiority fighter/attack craft. Capable of atmospheric flight, the Viper is a single-seat sub-light speed craft mounting two kinetic energy weapons (3 on at least one later design), as well as having hardpoints beneath the wings for mounting missiles, munitions pods and other ordnance. There are at least seven versions of the Viper design at the point in history depicted by the reimagined miniseries.

Richard Hudolin, the production designer for the miniseries, has stated that "The only things that we wanted to carry through (from the original filmand series) were the Mark II ships." [7]

Background


The Viper (Mark I) was introduced into Colonial service shortly before the outbreak of the first Cylon War. However, it was the Mark II Viper series, designed specifically for use with the new Colonial Battlestars, that is best remembered. The Mark II was used during the Cylon War, proving a capable fighting vehicle. It is regarded as one of the reasons the Twelve Colonies did not suffer defeat at the hands of the Cylons. The Mark II remained in service after the end of the war, with William Adama commenting that he last saw one, likely one of the last of its type, roughly twenty years after the end of the war.

The Mark II was superseded by newer models, with the Mark VII serving in front-line duties forty years after the end of the Cylon War, as seen inBattlestar Galactica: The Miniseries. By this time the Viper design had progressively evolved, retaining the basic structural configuration (essential for use with Colonial Battlestars), but with variations in length, equipment, and capability. No information is provided about the intervening designs, but by the time the Mark VII was introduced the Viper design incorporated software-based controls and fully networked systems, providing superior agility, battle management, and flight information for the pilot.

The Mark VII was later upgraded to include Dr. Gaius Baltar's navigational software. Along with the majority of the Colonial Fleet, this software allowed the Cylons to remotely disable the Vipers during the renewed attack on the Twelve Colonies. The few Mark VIIs that survived the disaster were later stripped of this software. The older Mark II fighters, not equipped with the "fly-by-wire" systems of newer Vipers, were unaffected by the Cylon modifications to Dr. Baltar's program. Two squadrons of Mark IIs were present in the Galactica's starboard flight pod in preparation for the Battlestar's new role as a museum ship, and after the Galactica's Mark VII squadron was destroyed by the Cylons, the display of Mark II's were refitted for combat by Galactica's deck crew.

Along with a handful of surviving Mark VII's, the older vipers made up Galactica's fighter wing during the Cylon sneak attack, the Battle of Ragnar Anchorage, and most of the Galactica's action prior to the arrival of Battlestar Pegasus in Season 2 episode "Pegasus", when her ability to manufacture more Mark VIIs was added to the fleet. When the Pegasus was destroyed in Season 3 episode "Exodus: Part 2", her nearly intact squadrons, all of them composed of Mark VIIs, were transferred to the Galactica 's air wing. At the time of the episode "He That Believeth in Me" (season 4, episode 3), more Vipers were available than qualified pilots, and trainee pilots were used to fly the extra fighters.

During the Battle of the Resurrection Hub, Vipers of both types were deployed from the Rebel Basestar against the Resurrection Hub and its two basestar escorts. The Vipers were towed into battle with their engines and electronics cold, allowing them to get the element of surprise in the attack. In that battle, both Colonial Vipers and Cylon Heavy Raiders fought side-by-side against the Cylons and once D'Anna Biers was unboxed and rescued, the Vipers, each equipped with at least one nuclear missile, lined up and launched their nuclear missiles into the Resurrection Hub, destroying it.

Sunday, January 13, 2013

Whew! Big asteroid no longer threat to Earth




  • ESA’s Herschel Space Observatory captured asteroid Apophis in its field of view during the approach to Earth on January, 5-6, 2013. This image shows the asteroid in Herschel’s three PACS wavelengths: 70, 100 and 160 microns.





WASHINGTON (AP) — Upon further review, a big scary-sounding asteroid is no longer even a remote threat to smash into Earth in about 20 years, NASA says.





Astronomers got a much better look at the asteroid when it whizzed by Earth on Wednesday from a relative safe 9 million miles away. They recalculated the space rock's trajectory and determined it wasn't on a path to hit Earth on April 13, 2036 as once feared possible.


At more than 1,060 feet wide, the rock called Apophis could do significant damage to a local area if it hit and perhaps even cause a tsunami. But it was not large enough to trigger worldwide extinctions. One prominent theory that explains the extinctions of dinosaurs and other species 65 million years ago says a six-mile-wide meteorite hit Earth and spewed vast amounts of dust into the air, cooling and darkening the planet.



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