the rochester cloak
Bookmarked 602 weeks ago
researchers at the university of rochester create a three-dimensionaltransmitting continuously multidirectional cloaking deviceinspired perhaps by harry potters invisibility cloak scientists have recently developed several wayssome simple and some involving new technologiesto hide objects from view the latest effort developed at the university of rochester not only overcomes some of the limitations of previous devices but it uses inexpensive readily available materials in a novel configurationthereve been many high tech approaches to cloaking and the basic idea behind these is to take light and have it pass around something as if it isnt there often using high-tech or exotic materials said john howell a professor of physics at the university of rochester forgoing the specialized components howell and graduate student joseph choi developed a combination of four standard lenses that keeps the object hidden as the viewer moves up to several degrees away from the optimal viewing positionthis is the first device that we know of that can do three-dimensional continuously multidirectional cloaking which works for transmitting rays in the visible spectrum said choi a phd student at rochesters institute of opticsmany cloaking designs work fine when you look at an object straight on but if you move your viewpoint even a little the object becomes visible explains howell choi added that previous cloaking devices can also cause the background to shift drastically making it obvious that the cloaking device is presentin order to both cloak an object and leave the background undisturbed the researchers determined the lens type and power needed as well as the precise distance to separate the four lenses to test their device they placed the cloaked object in front of a grid background as they looked through the lenses and changed their viewing angle by moving from side to side the grid shifted accordingly as if the cloaking device was not there there was no discontinuity in the grid lines behind the cloaked object compared to the background and the grid sizes magnification matchedthe rochester cloak can be scaled up as large as the size of the lenses allowing fairly large objects to be cloaked and unlike some other devices its broadband so it works for the whole visible spectrum of light rather than only for specific frequenciestheir simple configuration improves on other cloaking devices but its not perfect this cloak bends light and sends it through the center of the device so the on-axis region cannot be blocked or cloaked said choi this means that the cloaked region is shaped like a doughnut he added that they have slightly more complicated designs that solve the problem also the cloak has edge effects but these can be reduced when sufficiently large lenses are usedin a new paper submitted to the journal optics express and available on arxivorg howell and choi provide a mathematical formalism for this type of cloaking that can work for angles up to 15 degrees or more they use a technique called abcd matrices that describes how light bends when going through lenses mirrors or other optical elementswhile their device is not quite like harry potters invisibility cloak howell had some thoughts about potential applications including using cloaking to effectively let a surgeon look through his hands to what he is actually operating on he said the same principles could be applied to a truck to allow drivers to see through blind spots on their vehicleshowell became interested in creating simple cloaking devices with off-the-shelf materials while working on a holiday project with his children together with his 14 year-old son and choi he recently published a paper about some of the possibilities and also demonstrated simple cloaking with mirrors like magicians would usenote: a patent has been filed for this cloaking device please contact ur ventures for additional information: http:wwwrochestereduventuresaboutwho-are-we

dear youtube
Bookmarked 728 weeks ago
thanks for 1 billion views

the demonic curse of annabelle the doll
Bookmarked 354 weeks ago
will ryan and shanes face to face with annabelle be the unsolved series finaleunsolved has merch check it out here: http:bzfditshopunsolvedwatch on amazon instant video: http:amznto2nxa2q6watch on hulu: https:hulutv2fhqdmt check out our buzzfeed original series channel on roku: http:bitly2dunolecredits: https:wwwbuzzfeedcombfmpvideos85370musiclicensed via audio networksfx provided by audioblockshttps:wwwaudioblockscomdark prayer_fullmixlicensed via warner chappell production music incwelcome to the buzzfeed unsolved network this channel is your one-stop destination for all things mystery conspiracy supernatural true crime and everything in between subscribe here: http:bitly2zuar06stillscrime scene investigationlukatdbgetty imagesvintage loft room with antique rocking chair broadcast radio old typewriter and lamp on oak wooden desk front concrete wall background with shadows retro style filtered photobrat_pikachugetty imageshand holding

how do we know the universe is flat
Bookmarked 807 weeks ago
special thanks to space fan http:wwwyoutubecomtsjoencinema your suggestion while it didn039t have the most votes had enough to justify my doing this since i039ve been wanting to for a whilethanks to everyone for participating and keep voting i read them everydaymusic used:http:wwwarchiveorgdetailstfr07-direcalamity-ephttp:wwwarchiveorgdetailsdx_ambienthttp:wwwarchiveorgdetailsfreeosc38

one girl symphony full album amp film
Bookmarked 442 weeks ago
http:onegirlsymphonycarrdco a brief history of one girl symphony: the 45-minute rock symphony combines the best of pop rock blues and classical styles accompanied by an artistic film by whitney vandell including special effects time-lapse scenery and high definition slow motion videos that sync to the music completed over a period spanning several years the rock symphony was completed with violinists cellists and horn players from around the world recording the parts in an online collaboration orchestrated in addis ababa ethiopia the production has since brought together various constellations of world-class instrumentalists giving their interpretation of the symphony performed on stages across europe africa and the middle east while the film is projected simultaneously as a backdrop on stage to immerse the audience into the music

no copyright music energetic adrenaline pumping free royalty free background music brute chaos
Bookmarked 404 weeks ago
no copyright music energetic adrenaline pumping free royalty free background music brute chaoswelcome to cyber4hitsplease like share and hit that bellwebsite:https:cyber4hitscomyoutube channel: httpsyoutubecomcyber4hitsdon039t forget to hit the share amp bell amp like buttonsupport the stream: https:googlvbqnpkif you would like to donate to our channel click the link above thank you and happy gamingcheck out our merchant help support our channelhttps:googlzvr96cmore video links:more video039s:neverwinter mod 12b guardian fighter pvp road to page 1https:youtube5ez6qvjilbaneverwinter mod 12b guardian fighter pvp livesteam shout out 6https:youtubehu7psn2847uneverwinter - mod 12b - gf - pvp - 28 kill - 0 death - iron vanguard - your nightmarehttps:youtubesm2mlcy60eoplaylist:neverwinter mod 12bhttps:wwwyoutubecomplaylistlistneverwinter mod 12https:wwwyoutubecomplaylistlistmore tagsneverwinter yooutube:neverwinter

stomach bulge - edge systems
Bookmarked 69 weeks ago
watch stomach bulge - edge systems 2019 runtime: 34:53 categories: rape blowjob creampie penis in pussy doggystyle position stomach bulge japanese stomach sound background music straight cum inflation hornyhill hornyhillse

enjoy yourself as tushyraw
Bookmarked 69 weeks ago
watch enjoy yourself as tushyraw 2024 gi joeyhazel moore runtime: 12:00 categories: gi joey hazel moore ass filled background best better than breathtaking cute little ass filling hazel little telescope hornyhill hornyhillse

a student girl from a poor family was forced into the sea and it was so painful
Bookmarked 65 weeks ago
watch a student girl from a poor family was forced into the sea and it was so painful 2018 runtime: 19:38 categories: family background bad student girl forced going to sea pain porn selfie online viewing adult sex sex porn hornyhill hornyhillse

the boy in the background
Bookmarked 778 weeks ago
http:stepandstepru

women as reward - tropes vs women in video games
Bookmarked 554 weeks ago
content warning: this educational episode contains game footage of a graphic sexual naturethis episode explores the numerous ways in which the women as reward trope manifests in video games the trope occurs when women or womens bodies are employed as rewards for player actions a pattern which frames female bodies and sexuality as collectible or consumable and positions women as status symbols designed to validate the masculinity of presumed straight male players we then discuss how this trope both reflects and reinforces the pervasive socially constructed mentality of male entitlement that operates in the background of our culturepress image for media use: https:wwwflickrcomphotosfemfreq21029965781full transcript links and resources available at: http:wpmep5wxzg-8i4captions coming soonabout the seriesthe tropes vs women in video games project aims to examine the plot devices and patterns most often associated with female characters in gaming from a systemic big picture perspective this series will include critical analysis of many beloved games and characters but remember that it is both possible and even necessary to simultaneously enjoy media while also being critical of it039s more problematic or pernicious aspects this video series is created by anita sarkeesian and the project was funded by 6968 awesome backers on kickstartercom50 games referenced in this episode:alice: madness returns 2011 asuras wrath 2012 castle crashers 2008 conan 2007 dead rising 2006defender of the crown 1986 donkey kong 1981 double dragon 1987 dragon039s lair 1983 god of war 2005 god of war 3 2010 god of war: chains of olympus 2008 god of war: ghosts of sparta 2010 grand theft auto 4 2008 grand theft auto 5 2013 joe amp mac returns 1994 kid kool 1990 lollipop chainsaw 2012 mafia 2 2010 metal gear solid 4 2008 metal gear solid: the twin snakes 2004 metroid 1987metroid ii 1991 metroid fusion 2002 phelios 1990 rad mobile 1991 ratchet amp clank 2002 resident evil 5 2009 resident evil: deadly silence 2006 resident evil: revelations 2 2015 ride to hell: retribution 2013 rings of power 1991 spy special project y 1989 shadowgate 1987 shellshock: nam67 2004 sid meiers pirates 2001 splatterhouse 2010 stanley parable 2013 super hang-on 1987 super metroid 1994 super off road 1989 tales of vesperia 2008 teenage mutant ninja turtles 1989 the 3rd birthday 2011 the final round 1988 the saboteur 2009 the witcher 2007 the witcher 2 2011the witcher 3 2015 tony hawk pro skater 4 2002fair usethe multimedia clips included in this video constitute a 039fair use039 of any copyrighted material as provided for in section 107 of us copyright law which allows for criticism comment and scholarshipcomments: we have been forced to close comments on youtube due to continued harassment of this channel but please feel free to post and share this video with your own social media networks to facilitate discussionsother trope videos:damsel in distress part 1: http:youtubex6p5azp7r_qdamsel in distress part 2: http:youtubetoa_vh6xgqsdamsel in distress part 3: http:youtubeljimnqh_kwmms male character: http:youtubeeyqylfm1rwawomen as background decoration part 1: http:youtube4zpsrwedvsgwomen as background decoration part 2: https:youtube5i_rpr9dwmacreditsdirector: anita sarkeesianproducer: jonathan mcintoshwriters: anita sarkeesian jonathan mcintosh carolyn petitmotion graphics: black mathmusic: matt joynt amp nathan sandberg

know your news understanding the syrian revolution in under 4 minutes
Bookmarked 736 weeks ago
in which john green provides some historical context to the current civil war in syria discussing syrian independence the rise of the ba039ath party syria039s relationship with the rest of the arab world and russia the presidencies of hafez al assad and bashar al assad the arab spring protests in syria and the many flags of the syrian nationalso discussed in brief: ryan gosling and homoerotic sherlock watercolors which i found here: http:sadynaxtumblrcompost8702489306beautiful-john-sherlock-picture-for-me-from-auramy tumblr: http:fishingboatproceedstumblrcommy twitter: http:wwwtwittercomrealjohngreen

lakey inspired this feeling no copyright hip hop background music free download
Bookmarked 404 weeks ago
lakey inspired this feeling no copyright hip hop background music free downloadwelcome to cyber4hitsplease like share and hit that bellwebsite:https:cyber4hitscomyoutube channel: httpsyoutubecomcyber4hitsdon039t forget to hit the share amp bell amp like buttonsupport the stream: https:googlvbqnpkif you would like to donate to our channel click the link above thank you and happy gamingcheck out our merchant help support our channelhttps:googlzvr96cmore video links:more video039s:neverwinter mod 12b guardian fighter pvp road to page 1https:youtube5ez6qvjilbaneverwinter mod 12b guardian fighter pvp livesteam shout out 6https:youtubehu7psn2847uneverwinter - mod 12b - gf - pvp - 28 kill - 0 death - iron vanguard - your nightmarehttps:youtubesm2mlcy60eoplaylist:neverwinter mod 12bhttps:wwwyoutubecomplaylistlistneverwinter mod 12https:wwwyoutubecomplaylistlistmore tagsneverwinter yooutube:neverwinterneverwinter ni

lakey inspired warm nights no copyright city vlog background music free download
Bookmarked 404 weeks ago
lakey inspired warm nights no copyright city vlog background music free downloadwelcome to cyber4hitsplease like share and hit that bellwebsite:https:cyber4hitscomyoutube channel: httpsyoutubecomcyber4hitsdon039t forget to hit the share amp bell amp like buttonsupport the stream: https:googlvbqnpkif you would like to donate to our channel click the link above thank you and happy gamingcheck out our merchant help support our channelhttps:googlzvr96cmore video links:more video039s:neverwinter mod 12b guardian fighter pvp road to page 1https:youtube5ez6qvjilbaneverwinter mod 12b guardian fighter pvp livesteam shout out 6https:youtubehu7psn2847uneverwinter - mod 12b - gf - pvp - 28 kill - 0 death - iron vanguard - your nightmarehttps:youtubesm2mlcy60eoplaylist:neverwinter mod 12bhttps:wwwyoutubecomplaylistlistneverwinter mod 12https:wwwyoutubecomplaylistlistmore tagsneverwinter yooutube:neverwinterneverwinter

best of bossa nova covers 2015 - relaxing music amp video 1 hour
Bookmarked 536 weeks ago
for your delight we made a selection of bossa covers of popular songs from all time enjoy the list we compiled for you with beautiful images and smooth music para tu placer creamos esta seleccin de bossa covers de famosas canciones de todos los tiempos disfruta la lista que hemos compilado para ti con bellas imagenes y msica suave subscribe for more pleasant bossa music suscrbete para mas msica agradable bossa tracklist canciones incluidas:00:00 one way or another - fernanda02:22 call me maybe - franco sattamini amp alana marie05:03 god only knows - liz menezes07:52 love never felt so good - fernanda10:33 let her go - franco sattamini amp alana marie14:11 happy - paulinho loureiro18:03 right here - alana marie21:37 raindrops keep falling on my head - liz menezes24:35 old devil moon - marcelo gaz29:03 the look of love - liz menezes32:20 woman in chains - franco sattamini amp alana marie38:29 satin doll - bob tostes40:30 she loves you - monique kessous44:15 maggie may - paulinho loureiro47:32 jealous - franco sattamini amp alana marie51:28 la isla bonita - marcela mangabeira54:48 maps - franco sattamini amp alana marie58:01 speak low - bob tostes1:01:18 my funny valentine - marcelo gaz