Tag results for science
sort by: relevance | recent
Results from all user's collections (2848 out of ~2,848)
|
quantumlevitation
Bookmarked 748 weeks ago suspending a superconducting disc above or below a set of permanent magnets the magnetic field is locked inside the superconductor a phenomenon called 039quantum trapping039for more info visit: http:wwwquantumlevitationcom |
|
foam walkalong glider preview
Bookmarked 732 weeks ago the foam gliders have come a long way since i made this video for instructions and patterns thin foam or cut your own from scrap packaging foam go here:http:wwwsciencetoymakerorgairsurfkitindexhtm a glider becomes a walkalong glider when you can create a wave of air and surf the glider on the wave indefinitely which looks like magic my middle school technology students have been making and flying paper walkalong gliders but i039ve been searching for a walkalong glider design that039s easier to make and fly for first-time fliers i found it in a wisconsin college engineering student039s work michael thompson figured out how to slice ordinary white styrofoam--either recycled electronics packaging or insulation sheets from building supply stores---into very thin slices then he cuts and forms them into slow-flying gliders including his famous jagwings foam gliders are fast to make slow flying--great for a starter walkalong glidermichael sent me a glider and patiently taught me about them soon my students and i were making them flying them and innovating variations and you can too it039s too early to make instructions yet but here are some notes of what i039ve learned so farmike thompson has agreed to make foam sheets available inexpensively for just a few dollars you can get plenty to experiment with his e-mail is: flyingwingbat at yahoocom replace the quotatquot with i do it that way to foil spambots his prices include postage because he can send them in an envelope and that makes it easy for him to fill orders outside the usabout the videoi039ve been experimenting with a simple hot wire foam cutter this is the crude prototype i039m experimenting with the hot wire is inexpensive nichrome which is short for nickel chromium 40 gauge about 3 thousandths of an inch or 076 mm as thin as human hair when you pass electrical current through nichrome wire there is resistance electrical friction in the form of heat think of toasters i don039t get it hot enough to glow orange for longevity and safety but it039s hot enough to make a smooth precise cut through foami found that two 9 volt batteries hooked in series to get 18 volts was the perfect power source for that length i made a momentary foot switch so i don039t drain the batteries when not actually cuttingto set the thickness at which the wire will cut the foam i started with bare 20 gage wires at the edges that039s too thick so i shimmed it with folder paper oaktag and or printer paper depending how much to shim the wood base is protected from the how wire with aluminum foil the wire will get stuck in the wood and break denser foams electronic packaging can be cut thinner than less dense foam from building center as a rule of thumb i cut as thin as i can without ripping out holes in the foam when i try to separate off the thin sheetmaking a glidertape on a pattern in two places and cut on the line cutting through the tape last separate the foam from the pattern cut out a thin strip of paper from the pattern and tape it onto the frontdecide which side will be up bend the back tips elevons up bend the sliver of paper down what angle will will be one of the things you experiment with if it goes down too fast and you can039t correct it by changing the angle of the paper you might have to cut off some paper if it dips stalls and you can039t fix it by changing the angle of the paper you might have to add tiny bits of tape to the front end of the paperif the glider turns slightly don039t worry about it but if it turns hard bend one elevon up more the elevon opposite the way it039s turning you can also bend the leading edge up on that same side up if the severe turn persists try making the opposite bends on the other sideto fly the walkalong glider once you get it adjusted see this video http:wwwyoutubecomwatchv=7d80mn8rtikit039s about flying paper gliders but it applies to foam as wellmusicmusic is by the great irish guitarist john doyle at a concerti went to the young fiddler was terrific as well duncan wickel |
|
the 48 hours are up - horizon - bbc
Bookmarked 727 weeks ago the 48 hours of total isolation is over for our three volunteers emerging from the dark and silence cells they are asked to repeat the series of tests undertaken before they went into total isolation the results are startling with even the most basic of tasks proving extremely difficult clip taken from the bbc horizon programme total isolation watch more high quality videos on the new bbc worldwide youtube channel here: http:wwwyoutubecombbcworldwide |
|
how we can transform mars into a habitable planet
Bookmarked 704 weeks ago sorry for the tiny audio sync issues how we can transform mars into a habitable planet from the documentary - mars underground |
|
water droplets on a superhydrophobic surface
Bookmarked 715 weeks ago you can make a sheet of paper superhydrobic by rubbing it with superhydrobic aerogel powder then all water droplets are completely repelled by the paper surface more at http:wwwinnomatscom or http:bloginnomatsde |
|
panel discussion: dawkins tyson druyan stenger grothe
Bookmarked 617 weeks ago the panel features richard dawkins neil degrasse tyson ann druyan and victor stengermoderated by dj grothe of point of inquiry it took place at the new york academy of sciences at a center for inquiry conference titled quotsecular society and its enemiesquot the panel discusses atheism versus science science education the nature of science various strategies for advancing society in society threats to science education including religion and popular culture racism and sexism in science and many other topics for more information visit http:wwwcenterforinquirynet |
|
look around you brain
Bookmarked 768 weeks ago a scientific look into the brainwith rediculous conclusions |
|
|
quantum levitation
Bookmarked 748 weeks ago video courtesy of the association of science-technology centers astc representing the science center and museum field worldwide to learn more visit wwwastcorg follow us on twitter: sciencecenterstel-aviv university demos quantum superconductors locked in a magnetic field wwwquantumlevitationcomwith the theme quotknowledge that works: from theory to practicequot the 2011 astc annual conference featured more than 100 sessions which highlighted how science centers and museums are putting new ideas to practical use to serve their communities the conference was hosted by the maryland science center in baltimore october 15-18 |
|
nova science now : how smart are dolphins
Bookmarked 720 weeks ago these brainy marine mammals can quotreadquot plan ahead and communicate in astounding ways aired february 9 2011 on pbsprogram descriptionoff the coast of honduras on roatan island a legendary experiment in dolphin communication is being attempted for the first time in 20 yearsone that could prove that dolphins can in effect quotspeakquot with one another to coordinate their behavior other studies reveal that these playful marine mammals can plan ahead and problem-solve in ways few other animals can |
|
why does february only have 28 days
Bookmarked 573 weeks ago it039s not the size of the month that matterssubscribe: http:bitlyiotbs_sub twitter: okaytobesmart more info and sources below why does february only get 28 days when all the other months get 30 or 31 the answer is part superstition part politics and parts astronomy basically its the romans faultspecial thanks to dr jen ebbeler from the university of texas classics department for walking me through the history of the roman calendarreferences and further reading:wikipedias roman calendar page is really good http:enwikipediaorgwikiroman_calendarmore:http:penelopeuchicagoeduthayereromantextssecondarysmigracalendariumhtmlhttp:penelopeuchicagoedugroutencyclopaedia_romanacalendarromancalendarhtmlhttp:penelopeuchicagoedugroutencyclopaedia_romanacalendarintercalationhtmlhave an idea for an episode or an amazing science question you want answered leave a comment belowfollow on twitter: http:twittercomokaytobesmarthttp:twittercomjtotheizzoefollow on tumblr: http:wwwitsokaytobesmartcomfollow on instagram: http:instagramcomjtotheizzoe-----------------its okay to be smart is written and hosted by joe hanson phdfollow me on twitter: jtotheizzoeemail me: itsokaytobesmart at gmail dot comfacebook: http:wwwfacebookcomitsokaytobesmartgoogle https:plusgooglecomitsokaytobesmartfor more awesome science check out: http:wwwitsokaytobesmartcomproduced by pbs digital studios: http:wwwyoutubecomuserpbsdigitalstudiosjoe hanson - creatorhostwriterjoe nicolosi - directoramanda fox - producer spotzen inckate eads - associate producerandrew matthews - editingmotion graphicsanimationkatie graham - director of photographyjohn knudsen - gafferdalton allen - post-production interntheme music:ouroboros by kevin macleodother music via apmstock images from shutterstock-----------------last weeks video:why vaccines work https:wwwyoutubecomwatchv=3anhzlul2ysmore videos:why are some people left-handed https:wwwyoutubecomwatchv=npvmupcxpsawhere does the smell of rain come from https:wwwyoutubecomwatchv=lgce5x8s0b8why did we blow on nes games https:wwwyoutubecomwatchv=4gf9mtxnjfmthe science of game of thrones - https:wwwyoutubecomwatchv=utu-lpjn3isthere was no first human - https:wwwyoutubecomwatchv=xdwlhxi24mo |
|
flavor science: what039s really in a pumpkin spice latte
Bookmarked 540 weeks ago if you take a look at an ingredients list odds are youll find natural and artificial flavors somewhere in there turns out theres a whole science to making your pumpkin spice latte taste like pumpkin spice or your potato chips taste like pizza hosted by: michael aranda----------dooblydoo thanks go to the following patreon supporters -- we couldn039t make scishow without them shout out to justin ove justin lentz david campos philippe von bergen chris peters lilly grainger happy birthday and fatima iqbal----------like scishow want to help support us and also get things to put on your walls cover your torso and hold your liquids check out our awesome products over at dftba records: http:dftbacomscishowor help support us by becoming our patron on patreon:https:wwwpatreoncomscishow----------looking for scishow elsewhere on the internetfacebook: http:wwwfacebookcomscishowtwitter: http:wwwtwittercomscishowtumblr: http:scishowtumblrcominstagram: http:instagramcomthescishowsources:the science of flavor:http:sciencehowstuffworkscomquestion391htmhttp:wwwpbsorgpovfoodincfastfoodnation_03phphttp:wwwbbccomfuturestory20140829-the-secrets-of-fake-flavourshttps:booksgooglecombooksid=mgxabwaaqbajamppg=pa188http:wwwacsorgcontentacseneducationresourceshighschoolchemmatterspast-issuesarchive-2011-2012flavorfulfoodhtmlhttp:healthhowstuffworkscommental-healthhuman-natureperceptiontastehtmvanillin:http:2013igemorgteam:british_columbiaprojectvanillinmeeting_the_demand_of_world27s_most_popular_flavourhttp:wwwsigmaaldrichcomtechnical-documentsarticleswhite-papersflavors-and-fragrancesnatural-flavor-ingredients-regulationshtmlvanillingrapes:http:nadiaberensteincomblog2015327from-neroli-to-nugrape-methyl-anthranilatehttp:wwwthetimesheraldcomstorylife20141004concord-grapes-fill-air-foxiness16686551msg:http:wwwclinicalcorrelationsorgp=7655http:wwwsmithsonianmagcomarts-cultureits-the-umami-stupid-why-the-truth-about-msg-is-so-easy-to-swallow-180947626no-istpumpkin spice:http:wwwnprorgsectionsthesalt20141119365213805just-what-is-in-pumpkin-spice-flavor-hint-not-pumpkin |
|
drop science - matthew dear the sounds of ge
Bookmarked 599 weeks ago subscribe to the ge channel: http:inventge1eggvzkevery machine has its own acoustic signature - a precise frequency that indicates whether that machine is operating at peak performance ge engineers monitor and record these sounds to perform real-time diagnostics on airplane engines locomotives power turbines and medical equipment musician matthew dear and ge acoustic engineer andrew gorton teamed up to collect and compose thousands of audio emissions from the worlds most powerful machines the result is an original track of music titled drop sciencedownload the full track at http:soundcloudcomgeneralelectricfollow matthew dear: wwwsoundcloudcommatthewdearwwwfacebookcommatthewdearwwwtwittercommatthewdearge works on things that matter the best people and the best technologies taking on the toughest challenges finding solutions in energy health and home transportation and finance building powering moving and curing the world not just imagining doing ge worksconnect with ge online:visit ge039s website: http:inventgefind ge on google : http:inventge1dpuun5find ge on tumblr: http:inventge17sycnffind ge on facebook: http:inventge1929rztfollow ge on twitter: http:inventgexjax15follow ge on pinterest: http:inventge16jjinyfollow ge on instagram: http:inventge1a9xzgbfind ge on linkedin: http:inventge1gtui3edrop science - matthew dear the sounds of ge |
|
purdue world record rube goldberg machine 2011
Bookmarked 773 weeks ago the 2011 purdue university rube goldberg machine shattered the world record for most steps ever successfully completed by such a machine in 244 steps the quottime machinequot traces the history of the world from big bang to the apocalypse before accomplishing the assigned everyday task of watering a flower the machine is featured in the online edition of the world records academy and has been submitted to the world records academyhttp:wwwpurdueedunewsroomrubegoldbergindexhtml |
|
the garage converting classic cars to electric vehicles freethink diy science
Bookmarked 361 weeks ago ev west a garage outside san diego is turning classic cars into electric vehicles not only that their cars have won performance competitions and even set a record at the pikes peak international hill climb we talk with owner michael bream about how he got started doing diy conversions and the technology that makes these conversions possible we also check out some very cool cars what would your dream conversion car be let us know in the commentsfor more stories profiling pioneers of science and tech innovation subscribe to freethink at https:wwwyoutubecomfreethinkmediaand follow freethink across other platforms here:facebook: https:wwwfacebookcomfreethinkmediatwitter: https:twittercomfreethinkmediainstagram: https:wwwinstagramcomfreethinkmediawebsite: http:wwwfreethinkcom |