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nasa comet ison039s path through the solar system
Bookmarked 671 weeks ago comet c2012 s1 ison may become one of the most dazzling in decades when it rounds the sun later this year like all comets ison is a clump of frozen gases mixed with dust often described as quotdirty snowballsquot comets emit gas and dust whenever they venture near enough to the sun that the icy material transforms from a solid to gas a process called sublimation jets powered by sublimating ice also release dust which reflects sunlight and brightens the cometbased on ison039s orbit astronomers think the comet is making its first-ever trip through the inner solar system before beginning its long fall toward the sun the comet resided in the oort comet cloud a vast shell of perhaps a trillion icy bodies that extends from the outer reaches of the planetary system to about a third of the distance to the star nearest the sunformally designated c2012 s1 ison the comet was discovered on sept 21 2012 by russian astronomers vitali nevski and artyom novichonok using a telescope of the international scientific optical network located near kislovodskthe first of several intriguing observing opportunities occurs on oct 1 when the inbound comet passes about 67 million miles 108 million km from mars during this time the comet may be observable to nasa and esa spacecraft now working at mars including the curiosity roverfifty-eight days later on nov 28 ison will make a sweltering passage around the sun the comet will approach within about 730000 miles 12 million km of its visible surface which classifies ison as a sungrazing comet in late november its icy material will furiously sublimate and release torrents of dust as the surface erodes under the sun039s fierce heat all as sun-monitoring satellites look on around this time the comet may become bright enough to glimpse just by holding up a hand to block the sun039s glaresungrazing comets often shed large fragments or even completely disrupt following close encounters with the sun but for ison neither fate is a forgone conclusionfollowing ison039s solar encounter the comet will depart the sun and move toward earth appearing in evening twilight through december the comet will swing past earth on dec 26 approaching within 399 million miles 642 million km or about 167 times farther than the moonthis video is public domain and can be downloaded at: http:svsgsfcnasagovvisa010000a011200a011222like our videos subscribe to nasa039s goddard shorts hd podcast:http:svsgsfcnasagovvisitunesf0004_indexhtmlor find nasa goddard space flight center on facebook:http:wwwfacebookcomnasagsfcor find us on twitter:http:twittercomnasagoddard |
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optical effects of special relativity
Bookmarked 747 weeks ago the video shows photorealistic representations of reduced c scenes this means that the speed of light has been slowed down from over one billion kilometres per hour to a speed of only one meter per second the consequences of this fiction have been restricted to optical effects and allows us to see special-relativistic effects not possible in everyday life the first scene is a trip down a highway without any relativistic effects note the position and orientation of the structures in the desertfor the next trip we enable relativistic aberration as we accelerate note that the angular compression creates an initial impression of backwards motion as we pass the sign it seems to rotate around this can be viewed as a terrell rotation or as angular aberration keeping the sign in our field of view as we pass it the back walls of the building are also visible and extreme distortion is visible on all the objects note particularly the sky steadily shrinking down to the vanishing pointwe now enable doppler shifting note that the red desert is blue-shifted ahead through the green and red causing a rainbow effect as the blue of the sky is further blue-shifted it drains of colour near the edges of the image the opposite happens - the sky takes on a reddish hue and the road is drained of colour as the red desert shifts into the infra-redwith full relativistic effects now including the headlight effect the image quickly turns monotone with objects near the edge of the screen darkened and the centre brightly illuminatedthe terrell effect can be illustrated with this flyby of a cube note the orientation of the cube change also compare it039s apparent position with the position indicated on the hud map remember we are seeing the cube as it was not as it isif we instead fly through the cube the structures terrell rotate independently seeming to turn the cube inside out note that even when we have exited the back of the cube aberration keeps most of it in viewanother property of aberration is that it preserves circles - that is a sphere will always present a spherical outline to any observer regardless of their relative motion we see this demonstrated by flying a camera around the earth at high speed though the camera is very close to the surface aberration wraps the earth into our forward field of view but because we are so close to the earth we can see only a small portion of its surface - so small regions about the size of borneo seem to bulge out and fill the sphere |
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formula 1 2014 spanish grand prix technical highlights
Bookmarked 593 weeks ago formula one returns to europe fot the 2014 season for what is traditionally a key race: the spanish grand prix the barcelona montmelo circuit is familiar to the f1 teams and they frequently use the return to europe to introduce significant car upgrades designed to improve performance and increase downforcethis often adds to the demands placed on the tyres at what is already a high-energy formula 1 circuit because of the fast sweeping corners that put extreme forces through the tyres as a result pirelli will bring the two hardest compounds in the formula one rangepaul hembery pirelli motorsport director: quotit039s often said that barcelona provides the most accurate representation of the form a season will take because a car that performs well in barcelona should perform well everywhere the same is true of the tyres because the spanish circuit is one of the most demanding circuits we race on all year long and fast corners such as turn three put a huge amount of energy into the tyres as a result of which degradation is high the track surface is also quite abrasive and ambient temperatures can be high which increase the workload on the tyres further in the past we039ve seen up to four pit stops in spain with the changes we have made to the tyres this year we would now hope to see no more than three for the majority of drivers we made a solid start to our preparations for next year with the first dedicated in-season tyre tests in bahrain we039re looking forward to building on that work with four teams in spain after the grand prixquotjean alesi pirelli consultant: quotfor the tyres barcelona is one of the hardest circuits of the year the surface is quite abrasive but the main thing is all the fast corners that you accelerate through which take a lot out of the rear tyres in particular so this means that having the right set-up is absolutely essential to control degradation if you don039t do that you end up destroying the rear tyres and you lose pace very quickly the other problem becomes braking and acceleration: with worn tyres it also takes longer to brake and find traction out of the corners it will be interesting to find out how the cars are at barcelona this year: in theory with less downforce it should be less tiring for the drivers than it was in the past but we have to see which upgrades the teams bring as wellquotmore videos visit our youtube channel http:wwwyoutubecomsubscription_centeradd_user=sportscaronvideohttp:wwwsportscaronvideocomyou can also follow us on:facebookhttp:wwwfacebookcomsportscaronvideotwitterhttp:twittercomsportscarvideogooglehttp:plusgooglecomsportscaronvideopinteresthttp:pinterestcomsportscarvideo |
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buy fuji electric igbt power transistor modules and power semiconductor
Bookmarked 571 weeks ago buy fuji electric igbts http:wwwuscomponentcomigbt-manufacturerfuji we sell good quality and different kinds of fuji electric igbt power transistor modulesfuji has come a long way to become the giant electrical company it is today fuji a spinoff company from siemens manufactures a multitude of electrical equipment and amongst it all are igbts the igbt is a high performance 6th generation igbtfwd chipset with a compact design that provides for greater power output it has environmentally friendly modules with easy assemblage solder-free options and rohs compliance the igbt turn-on switching characteristics include: improved noise-loss trade-off reduced turn-on dvdt and excellent turn-on dicdt turn-off switching characteristics include: soft switching behavior and turn-off oscillation free in 2006 fuji electric achieved world-leading level of power loss reduction and down-sizing new dual a new product line of fifth generation fuji igbt modules u4 seriesin 2008 fuji electric released new fuji igbt module for high-capacity industrial equipment a new product has been added to the line-up using fdts fifth generation igbt u4 seriesin 2010 fuji electric released new fuji high-power 2-in-1 igbt module series designed for parallel connectionsin 2011 fuji electric released new new v-series intelligent power modules fuji igbt equipped with 6th-generation igbt chips and capable of the highest efficiency in the industryin 2011 fuji electric released new fuji igbt module for advanced neutral point clamped npc circuits series worlds first module with a 3-level platform in a single package in 2012 fuji electric announced it has developed easypimtm insulated gate bipolar transistor fuji igbt modules fitted with 6th-generation igbt chips and plans to commence a sales release of this new product lineupin 2012 fuji electric released a new high-speed low-loss fuji igbt module output type intelligent power module incorporating various protective functions and completed a product seriesin 2012 fuji electric developed a chip which is constructed such that a ni-plating electrode is formed on its surface electrodes 2nd-generation igbt chips feature an optimized surface trench cell structure and employ a new field stop structure diode chips incorporate an optimized anode layer structure and utilize fz wafers to improve forward characteristics and improve chip reliability these improvements make it possible to reduce fuji igbt and diode chip sizes increase system output and facilitate miniaturizationrelated searches: fuji electric fuji power semiconductor fuji igbt fuji electric igbt fuji power transistor module fuji power modules fuji igbt modules buy igbtlike us on facebook: https:wwwfacebookcomyoungnewcenturyllcfollow on twitter: https:twittercomuscomponent |
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lc screen printing machine for glass cups and cylindrical bottles
Bookmarked 525 weeks ago http:wwwprintermakercom http:wwwprintermakercomproductscreen-printing-machine-76htmcylindrical screen printer for printing glass cup and other cylindrical bottlesspecifications 1 the max printing thickness: 200 mm 2 air consumption: 75 litmin3 outline size: 10808501280mm4 the max printing area : 200300mm5 dimension of working table: 250mm300mm6 max printing speed: 1800pchr7 max frame dimension: 410350mm8 stroke of squeegee: 250mm9 stroke of table cylinder: 60mm10max diameter of products: 82mm11max length of products: 300mm12grossnet weight127kg90 kg 13:packing size:9008001300mm advantages 1 controlled by microprocessor easy operation running stably and accurately 2 4-digit auto counter built-in 3 cast aluminum machine framelow weight and high intensityadjust convenient 4 separate adjustment of the pad updown stroke speed 5 ink scraper is auto balance keeping in printing 6 with the function of ink scraping nonstop without printing in order to prevent the ink from drying 7 ink cup is turnable and adjustable in vertical and horizontal direction 8 with super long slide stroke to print large size workpiece 9 pneumatic part of the installation of the german festo parts separate adjustment speed application scope: suitable for precise printing substrates in cylindrical conical and oval forms which with smooth curve surface and made of various materials such as metal plastic ceramic glass wood etc printing objects such as lipstick cosmetic bottles scour bottles drink bottles pots oil-filter shell etcname cylinder screen printer country of origin china prices: product description specifications 1 the max printing thickness: 200 mm 2 air consumption: 75 litmin3 outline size: 10808501280mm4 the max printing area : 200250mm5 dimension of working table: 250mm300mm6 max printing speed: 1800pchr7 max frame dimension: 410350mm8 stroke of squeegee: 250mm9 stroke of table cylinder: 60mm10max diameter of products: 75mm11max length of products: 300mm12grossnet weight127kg90 kg advantages 1 controlled by microprocessor easy operation running stably and accurately 2 4-digit auto counter built-in 3 cast aluminum machine framelow weight and high intensityadjust convenient 4 separate adjustment of the pad updown stroke speed 5 ink scraper is auto balance keeping in printing 6 with the function of ink scraping nonstop without printing in order to prevent the ink from drying 7 ink cup is turnable and adjustable in vertical and horizontal direction 8 with super long slide stroke to print large size workpiece 9 pneumatic part of the installation of the german festo parts separate adjustment speed application scope: suitable for precise printing substrates in cylindrical conical and oval forms which with smooth curve surface and made of various materials such as metal plastic ceramic glass wood etc printing objects such as lipstick cosmetic bottles scour bottles drink bottles pots oil-filter shell etc |
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the beautiful songs of moonbase alpha
Bookmarked 527 weeks ago warm up your singing voice and prepare to be serenaded by the sweet sweet songs of moonbase alpha - an online space simulatorabout moonbase alpha description from steam:nasa has once again landed on the lunar surface with the goal of colonization research and further exploration shortly after the return to the moon nasa has established a small outpost on the south pole of the moon called moonbase alpha utilizing solar energy and regolith processing the moonbase has become self-sufficient and plans for further expansion are underway in moonbase alpha you assume the exciting role of an astronaut working to further human expansion and research returning from a research expedition you witness a meteorite impact that cripples the life support capability of the settlement with precious minutes ticking away you and your team must repair and replace equipment in order to restore the oxygen production to the settlement team coordination along with the proper use and allocation of your available resources player controlled robots rovers repair tools etc are key to your overall success there are several ways in which you can successfully restore the life support system of the lunar base but since you are scored on the time spent to complete the task you have to work effectively as a team learn from decisions made in previous gaming sessions and make intelligence decisions in order to top the leaderboards |
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the skin gun
Bookmarked 735 weeks ago since the video is blocked in some countries i re-uploaded this so others could see enjoyupdate 2172011a lot of people have doubts that this is real this is not unusual when new groundbreaking technology suddenly sweeps in do a couple of quick searches and you039ll see many articles on this i see absolutely no point in nat geo defiling their credibility by showing this video on their channel if it were fake there is no marketing incentive or tie-in here in other wordsstop being ridiculously skeptical just because you can039t believe it this is technology people if you showed someone an hd camera 300 years ago they039d be just as much in disbelief what we perceive as unthinkable now may come to be reality later we have not even begun to scratch the surface of what technology can do for us don039t forget that due to the limitations of our methodology and our global way of thinking our technology and research is truly being hampered on many levels and is very very much behind what it could potentially be if we were not held back by monetary concernsupdate 73113d printing with the use of this technology if you still don039t believe this is real here039s another use of the underlying technology http:wwwyoutubecomwatchv=chkwiuhx_ictime is 9:05 in the video for the skin cell printing |
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star size comparison hd audiov2
Bookmarked 781 weeks ago this is an upload of my star size comparison video for the countries in which the original one has been blocked due to copyrigt issues of the audio tracki was notified that the movie soundracks i used are copyrigt protected but they left everything like it is and instead blocked the whole video in some countries around the globeunfortunately i live in one of them so while some people can still enjoy the original this one is for the rest of the world i know the original audio was better but there is nothing i can do about itand yes uranus the funniest planet of the universe is still missing i left it out because it has about the same size as neptune and the surface looks boring later i realized that it is the only one missingsince pluto lost its plantet-status i dont want to change the video sorry about that and if i did i am sure some people will complain: quotit is rotating in the wrong direction and the axis should be tiltquotbut i promise he will appear in future projectsand to all people finding the name of uranus hilarious please search for the clip from jackass visiting the town mianus in conneticut you will like itso we are back on air enjoy the video again if you missed it |
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novalia printedmidi for dj qbert039s album cover
Bookmarked 579 weeks ago find us: wwwnovaliacoukfollow us: novaliainfolike us: wwwfacebookcomnovalialtdnovalia worked with dj qbert to create the worlds first interactive dj decks in an album coverqberts kickstarter funded extraterrestria album features a set of working bluetooth midi decks and controls that connect to ios and osx touching the paper connects to the algoriddim djay app allowing the user to scratch mix and fade any songs they load into the softwarecomplete with two decks a cross fader and an array of sfx buttons beautifully printed onto paper using printed electronics and artwork designed by morning breath for qbert the decks demonstrate the possibilities for interconnectivity between the physical and digital in a way that can enhance user experiencetalking about the technology behind the technology behind the product novalias dr kate stone commentswe believe the future will look more like the past than the present where beautiful old school things we love and are nostalgic about will not die as many have said we hope to breathe life into things like books and album covers keeping the creativity in physical products alive we work at the interface of the digital and physical taking the essence of the digital world and putting that digital dna into beautiful physical objects which have intuitive touch connectivity and data beneath the surface and are manufactured by processes such as regular print |
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why every picture of a black hole is an illustration
Bookmarked 514 weeks ago scientists are pretty sure black holes are real soon they039ll know for suresubscribe to our channel http:googl0bsajothe biggest problem with trying to detect a black hole is that even the supermassive ones are relatively tinyquotthe largest one in the sky is the black hole in the center of the milky wayquot dimitrios psaltis an astrophysicist at the university of arizona writes me in an email quotand taking a picture of it would be equivalent to taking a picture of a dvd on the surface of the moonquotwhat039s more because of their strong gravity black holes tend to be surrounded by other bright matter that makes it hard to see the object itselfthat039s why when hunting for black holes astronomers don039t usually try for direct observation instead they look for evidence of the effects of a black hole039s gravity and radiationbut an ongoing effort is linking up several radio telescopes around the world in an effort to see a black hole up close for the first time the historic image is due in 2017 read more: http:wwwvoxcom201622311095624voxcom is a news website that helps you cut through the noise and understand what039s really driving the events in the headlines check out http:wwwvoxcom to get up to speed on everything from kurdistan to the kim kardashian app check out our full video catalog: http:googlizonyefollow vox on twitter: http:googlxfrz5hor on facebook: http:googlu2g06o |
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supervolcanoes - fulldome trailer
Bookmarked 668 weeks ago the amazing benedict cumberbatch narrates our new giant screen ultra high-res fulldome show it039s just been released into global distribution so it might open at a planetarium theater near youthe show takes us back 74000 years ago to the island of sumatra a volcanic eruption triggered the sudden and violent collapse of a vast regional plateau toba as the volcano is known today was the largest volcanic eruption in the last 25 million years but earth has seen far larger 250 million years ago an eruption in what039s now siberia lasted a million years and was probably responsible for the greatest episode of mass extinction in earth039s historysupervolcanoes is an immersive planetarium show that looks back at rare classes of eruptions that have marshaled the energy that lurks like a sleeping dragon beneath the surface of planet earth the program moves beyond earth to explore the impact of giant volcanic eruptions around our solar system audiences will fly down to neptune039s frigid moon triton and onto the ultimate volcanic world: jupiter039s moon io on a visit to a legendary north american hot spot yellowstone national park the film asks: can a supervolcano erupt in our timesupervolcanoes is a co-production of spitz creative media mirage3d and thomas lucas productions inc in association with the denver museum of nature amp science with support from the pennsylvania film council |
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jse 420 films mtwashington new hampshire hd
Bookmarked 741 weeks ago jse 420 films - mtwashington new hampshire hd - at 6288 feet mount washington nh is the highest peak in the north eastern united states famous for dangerously wild weather this new jse 420 segment features a snowy wintry visit to the presidential range of northern new hampshire for some cross-country nordic style snow skiing with guest host correspondent and local native outdoorsman greg tsoules this video puts the viewer right in the middle of a new england style winter snowstorm in a rural new hampshire town 3 hours north of boston in your face fun outdoors snow scenes here along the back roads of jackson new hampshire with mt washington looming in the backgroundsee what the locals do to keep in shape in the mountains which are known worldwide for their ferocious winds and unpredictable weatherfollow greg along ancient snow laced forest trails as he skis through the birch and pine trees covered with fluffy winter white powderfor 76 years the weather observatory on top held the record for the highest wind gust directly measured at the earth039s surface 231 mph it was known as agiocochook quothome of the great spiritquotmusic by artist chris swann of san diego laying down a couple soulful tunes to fit the smooth refreshing actiona js edmondson 420 series film112011 trt-4:48 http:wwwxcorpstvcom |
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nasa039s kepler mission announces latest planetary discovery
Bookmarked 740 weeks ago the kepler mission039s science team announced its latest finding at a press conference on monday dec 5 2011 the team announced the confirmation of kepler-22b its first planet found in the quothabitable zonequot the region where liquid water could exist on a planet039s surface the planet is about 24 times the radius of earth orbits around a star similar to our sun and is located 600 light-years away scientists don039t yet know if kepler-22b has a predominantly rocky gaseous or liquid composition but its discovery is a step closer to finding earth-like planets the planet039s host star belongs to the same class as our sun called g-type although it is slightly smaller and cooler kepler also has discovered 1094 new planet candidates nearly doubling its previously known count since the last catalog was released in february the number of planet candidates identified by kepler has increased by 89 percent and now totals 2326 of these 207 are approximately earth-size 680 are super earth-size 1181 are neptune-size 203 are jupiter-size and 55 are larger than jupiter the findings based on observations conducted may 2009 to september 2010 show a dramatic increase in the numbers of smaller-size planet candidates for more information about the kepler mission please visit wwwnasagovkepler |
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trailer: big crazy family adventure
Bookmarked 565 weeks ago trekking through the himalaya with a short stop at mt everests base camp sailing the ganges river crossing the north pacific ocean on a container ship meditating with monks in a tibetan monastery these are not the typical activities you might expect during a family vacation with two young children but the kirkby family is on an extraordinary adventure halfway around the globe and inviting everyone to come along travel channels mesmerizing and cinematic new series big crazy family adventure premiering sunday june 21 with back-to-back episodes at 9:00 pm amp 10:00 pm etpt follows wilderness guide writer and award-winning photographer bruce kirkby throughout this epic trip from his home in kimberley british columbia to a remote monastery in the himalaya with his wife christine pitkanen and their two young boys: bodi 7 and taj 3 theres just one catch: on their 13000-mile adventure they wont be taking any airplanes to fully experience the life-changing and serendipitous moments that exploring the world provides theyll get to their final destination through surface travel only canoe container ship ferry high-speed train river boat tuk tuk pony their own eight feet and more the series is comprised of nine hour-long episodes to view the multimedia news release go to http:wwwmultivucomplayersenglish70380510-travel-channel-big-crazy-family-adventure |
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cressi frog plus white
Bookmarked 666 weeks ago frog pluscressi039s latest addition to its extensive line of world renowned fins is the frog plus open heel scuba diving fin the frog plus features many of the great characteristics of a traditional paddle fin along with introducing a revolutionary new blade material that is both extremely durable and nearly indestructiblethe frog plus utilizes cressi039s patented three material injection molding process the three materials consist of a nice comfortable rubber on the foot pocket that extends up the side rails of the blade the second material is the revolutionary new dual density techno polymer which forms the blade and in conjunction with the third silicone based material creates a channeling effectthe channeling effect is the characteristic of the fin that enables a high level of energy to be transferred in both up and down strokes of the kick pattern the frog plus also incorporates cressi039s patented positioning of the foot pocket below the blade this design increases the working surface area of the blade by 20the combination of the channeling effect and the foot pocket mounted beneath the blade creates a very powerful and efficient fin with minimal leg strain because of these characteristics the frog plus fin is an ideal choice for the entry level to advanced diver the frog plus is available in four sizes in four colors |