a quotstar warsquot laser bullet - this is what it really looks like
Bookmarked 580 weeks ago
a star wars laser bullet this is what it really looks likeaction-packed science-fiction movies often feature colourful laser bolts but what would a real laser missile look like during flight if we could only make it out how would it illuminate its surroundings the answers lie in a film made at the laser centre of the institute of physical chemistry of the polish academy of sciences in cooperation with the faculty of physics at the university of warsawtests of a new compact high-power laser have given researchers at the laser centre of the institute of physical chemistry of the polish academy of sciences and the faculty of physics university of warsaw ipc pas and fuw the opportunity to film the passage of an ultrashort laser pulse through the air the film shows the journey of a light projectile at an extremely slow rate similar to that watched on cinema screens by science-fiction aficionadosif you wanted to film a single light impulse to move as slowly on film as in our recording you would have to use a camera operating at a speed of a billion frames per second says dr yuriy stepanenko leading the team responsible for the construction of the lasercameras recording billions of frames per second in one sequence do not exist in order to film the travelling laser pulse researchers from the laser centre of ipc pas and fuw used an earlier known trick a suitably adapted camera was synchronised with a laser generating laser pulses at a rate of approx 10 shots per second it was done in such a way that with every subsequent pulse the camera recorded an image minimally delayed than previous onein fact a different laser pulse can be seen in every frame of our film explains dr pawe wnuk lc of ipc pas and fuw and adds: luckily the physics always stays the same so on the film one can observe all the effects associated with the movement of the laser pulse in space in particular the changes in ambient light depending on the position of the pulse and the formation of flares on the walls when the light passes through the dispersing cloud of condensed water vapourthe laser pulse lasting a dozen or so femtoseconds millionths of a billionth of a second was generated by a laser constructed at the laser centre of ipc pas and fuw it was so powerful that it almost immediately ionised the atoms it encountered as a result a plasma fibre filament was formed alongside the pulse by appropriately selecting the operating parameters of the laser to permit a balance of the complex interactions between the pulse039s electromagnetic field and the plasma filament the laser light beam did not disperse in the air conversely it underwent self-focusing this meant that the pulse could effectively move a much greater distance than low-power pulses whilst maintaining its original parametersit is worth noting that although the light we are shooting from the laser is in the near infrared range a laser beam like this travelling through the air changes colour to white this happens since the interaction of the pulse with the plasma generates light of many different wavelengths received simultaneously these waves give the impression of white adds dr stepanenkothe ability of the light pulses from the new laser to penetrate the atmosphere over long distances is a feature that the warsaw researchers made use of when demonstrating lidar a device that can be used for the remote testing of atmospheric pollution the fact that the pulses generate white light during passage is an important advantage in this context light at different wavelengths interacting with the atoms and molecules in the air is able to provide a far greater wealth of information this means that lidar constructed using the new laser will be able to detect a larger number of elements and compounds polluting the atmospherephotos and films of the ballistic laser pulse and plasma filaments were shot during testing of the compact laser generating femtosecond pulses with a power of over 10 terawatts constructed at the laser centre of ipc pas and fuw the innovative device uses the direct transfer of energy from the pump laser beam to the reinforced beam due to the effects of nonlinear optics the light is amplified hundreds of millions of times on a distance of just a few centimetres with over 30 efficiency which is outstanding among devices of this class the multi-pass optical parametric amplifier nopcpa noncollinear optical parametric chirped pulse amplifier used in the laser was designed in-house and prof czesaw radzewicz and his team have been developing it in the laser centre of ipc and fuw since 2005

maya angelou039s poem quoton the pulse of morningquot
Bookmarked 601 weeks ago
this is video footage of maya angelou reciting her poem quoton the pulse of morningquot at the 1993 presidential inaugural this footage is official public record produced by the white house television whtv crew provided by the clinton presidential librarydate: january 20 1993location: us capitol washington dcaccess restrictions: unrestricteduse restrictionss: unrestrictedcamera: white house television whtv mainthis material is public domain as it is a work prepared by an officer or employee of the us government as part of that person039s official duties any usage must receive the credit quotcourtesy william j clinton presidential libraryquot and no exclusive rights or permissions are granted for usage

wanda jackson feat jack white 039thunder on the mountain039 offical hd video
Bookmarked 775 weeks ago
thirtytwo deliver the electric new single 039thunder on the mountain039 for wanda jackson and jack white the bob dylan cover is the first single taken from jack039s creative collaboration with the the first lady of rockabilly and was shot in a record pressing plant in nashville

2012 video fairy sized doll sheila gets her small body aggressively boned by dick
Bookmarked 41 weeks ago
watch 2012 video fairy sized doll sheila gets her small body aggressively boned by dick 2020 runtime: 07:39 categories: love passion caress aggressive boner touch and feel fairy doll girl thrusting power pulse hornyhill hornyhillse

200 mph control line dreadnought pulse jet bmfa nats 2017 ultrahd and 4k
Bookmarked 390 weeks ago
200 mph control line dreadnought pulse jet bmfa nats 2017 ultrahd and 4kfirst time i had seen one of these and certainly one of the scariest to film safety dictated i filmed from behind the safety fencing obviously but you get the clear impression of the speed of these projectiles the line is fixed to a pole in the centre and the pitchelevator control by a slider that moves backwards and forwards on the line the movement on the elevator is tiny no more than 2mm the power from these pulse jets varies from 4lbs to 8lbs enough power to push these models to over 200mph average over 8 circuits this 039dreadnought039 pulse jet was flown by richard grindleyfilmed at the british model flying association bmfa power nationals 039nats039 event 2017 using the panasonic ag-ux180 4k pro camcorder by dom mitchell of 039essential rc039 youtube channeldon039t forget to subscribe for regular 039essential rc039 action using this link http:wwwyoutubecomcessentialrcsub

nuclear reactor pulse and startup compilation 2017
Bookmarked 420 weeks ago
the blue light is known as cherenkov radiation it is similar to a sonic boom but instead of an object travelling faster than the speed of sound a charged particle is travelling faster than the speed of light in a medium in this case the speed of light in water is roughly 75 the speed of light in a vacuumit tests the time-dependent properties of the fuel engineers use that data to predict what would happen if there were an accident at a large reactorcherenkov radiation also known as vavilovcherenkov radiationa is electromagnetic radiation emitted when a charged particle such as an electron passes through a dielectric medium at a speed greater than the phase velocity of light in that medium the characteristic blue glow of an underwater nuclear reactor is due to cherenkov radiationessentially when light passes through different materials its speed can be slowed as the photon makes it way through the medium10000th cycle of the annular core research reactorreed college targa i reactor

sheena wrestling
Bookmarked 40 weeks ago
watch sheena wrestling 2020 runtime: 02:20 categories: hot wrestling fbb femdom facesitting sheena headscissors mixed wrestling strong woman muscular woman fight pulse hornyhill hornyhillse

moira johnston: topless in nyc - btr pulse ep80
Bookmarked 696 weeks ago
possibly nsfw according to a 1992 law women in new york have the right to go topless anywhere a man can so long as they039re not engaged in commerce yet many people still don039t know this is legal twenty years after the ruling this week on btr pulse lauren hawker caught up with moira johnston a female rights activist from philadelphia who has ditched her shirt to raise awareness about a woman039s legal right to be topless in nyc featured song: quotflight of the demoisellesquot by blacklist

blade driver shooting buzz saw blades
Bookmarked 710 weeks ago
http:wwwfacebookcomprofilephpid=100002678413539add me for a chati do not offer any plans schematics and i wont make a tutorialhomemade to 100 no idea where that idea come fromi am a sick man :it shoots 50mm steel buzz saw blades 08mm thick made by proxxon germanya electric motor makes it rotate before its accelerated on its lil slide towards the open end of the crossbowruns on 4 li ion cells 18650green 30mw dpss laser for aimingthe spring steel for that bow was 200 euro already

starset - monster official music video
Bookmarked 464 weeks ago
from the album vessels - available january 20itunes: http:geniusvesselsamazon: http:geniusvesselsamzgoogle play: http:geniusvesselsgpapple music: http:geniusmonsteramspotify: http:geniusmonsterspotifydirected by punkcityadditional work by james buraninformation on upcoming tours and demonstrations at http:starsetonlinecomunder the knife i surrenderedthe innocence yours to consumeyou cut it awayand you filled me up with hate into the silence you sent meinto the fire- consumedyou thought i039d forgetbut it039s always in my head you039re the pulse in my veinsyou039re the war that i wage can you change mecan you change me you039re the love that i hateyou039re the drug that i takewill you cage mewill you cage me you039re the pulse in my veinsyou039re the war that i wage can you change mecan you change me from the monster you made me this is the world you039ve created the product of what i039ve becomemy soul and my

pulse wireless stereo headset -- elite edition
Bookmarked 705 weeks ago
pulse wireless stereo headset -- elite edition: e3 is just around the corner and we hope you039re as excited as we are about all of the games that will be unveiled and the upcoming announcements we have in store for you before we get to the big week we039ve decided to curb your appetite by giving you a sneak peak at the newest addition to the playstation3 ps3 accessories family last year we introduced the official ps3 wireless stereo headset and this year we039re amplifying your audio experience with the brand new pulse wireless stereo headset - elite edition featuring quotbassimpactquot technology

jimmy carter -- share your opinion with bing pulse
Bookmarked 668 weeks ago
for the millions of americans waiting in anticipation for the president039s state of the union address on feb 12 at 9 pm est bing and fox news channel have partnered to launch the first-of-its-kind bing pulse online voting tool which enables americans to track and share opinions in real time during the president039s state of the union speech the bing pulse is part of a comprehensive state of the union experience at bingcompolitics the site provides a single destination for up-to-the-minute political news expert information real-time conversations and social sentiment on major policy issuesto view multimedia news release go to http:wwwmultivucommnr60078-microsoft-bing-com-to-host-interactive-state-of-the-union-experience

melasma treatment by amara medical aesthetics in bellevue
Bookmarked 426 weeks ago
melasma is a very common patchy brown tan or blue-gray facial skin discoloration usually seen in women in the reproductive years it typically appears on the upper cheeks upper lip forehead and chin of women 20-50 years of age although possible it is uncommon in males most of those with melasma are women it is thought to be primarily related to external sun exposure external hormones like birth control pills and internal hormonal changes as seen in pregnancy most people with melasma have a history of daily or intermittent sun exposure although heat is also suspected to be an underlying factor melasma is most common among pregnant women especially those of latin and asian descents people with olive or darker skin like hispanic asian and middle eastern individuals have higher incidences of melasmaamaras fda-regulated lasers the lutronic and cutera utilize nano second pico second technology pico is the latest cutting edge technology in laserscall amara today to schedule a compl

twist and pulse vs 1d
Bookmarked 738 weeks ago
copyright disclaimer under section 107 of the copyright act 1976 allowance is made for quotfair usequot for purposes such as criticism comment news reporting teaching scholarship and research fair use is a use permitted by copyright statute that might otherwise be infringing non-profit educational or personal use tips the balance in favor of fair use

quothandsquot - a song for orlando lyric video
Bookmarked 490 weeks ago
hands available now exclusively on itunes: http:smarturlithandstributeproceeds from the sale of the new tribute single in the united states will benefit equality florida pulse victims fund the glbt community center of central florida and glaadhands is a musical tribute to the 49 victims of the shooting at pulse nightclub in orlando florida the track features mary j blige jason derulo britney spears tyler glenn selena gomez halsey ty herndon imagine dragons juanes adam lambert mary lambert jennifer lopez the trans chorus of los angeles kacey musgraves mnek alex newell pnk prince royce nate ruess rupaul troye sivan jussie smollett gwen stefani and meghan trainorpatience carter tiara parker and angel anthony santiago survivors of the shooting at pulse nightclub appear in the lyric video digital creators from all walks of life also appear in the lyric video those creators are connor franta mitch grassi and scott hoying superfruit toby randall luca