- published: 18 Nov 2014
- views: 86260
In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as Earth's Moon.
The world's first artificial satellite, the Sputnik 1, was launched by the Soviet Union in 1957. Since then, thousands of satellites have been launched into orbit around the Earth. Some satellites, notably space stations, have been launched in parts and assembled in orbit. Artificial satellites originate from more than 40 countries and have used the satellite launching capabilities of ten nations. About a thousand satellites are currently operational, whereas thousands of unused satellites and satellite fragments orbit the Earth as space debris. A few space probes have been placed into orbit around other bodies and become artificial satellites to the Moon, Mercury, Venus, Mars, Jupiter, Saturn, Vesta, Eros, Ceres, and the Sun.
Satellites are used for a large number of purposes. Common types include military and civilian Earth observation satellites, communications satellites, navigation satellites, weather satellites, and research satellites. Space stations and human spacecraft in orbit are also satellites. Satellite orbits vary greatly, depending on the purpose of the satellite, and are classified in a number of ways. Well-known (overlapping) classes include low Earth orbit, polar orbit, and geostationary orbit.
Lazer Team is a 2015 American science fiction action comedy film directed, produced, and co-written by Matt Hullum. The first feature film produced by Rooster Teeth, it stars Burnie Burns, Gavin Free, Michael Jones, Colton Dunn, Allie DeBerry, and Alan Ritchson. The film follows the Lazer Team, a group of four who find themselves responsible for the fate of the planet upon discovering an alien crash site containing a battle suit.
Lazer Team is produced by Hullum, Burns, and Doreen Copeland. Burns and Hullum also co-wrote the film, alongside Rooster Teeth employees Chris Demarais and Josh Flanagan. Funding for the film was largely raised through a successful Indiegogo campaign, raising over $2.4 million in a month. Filming began in October 2014, with principal photography taking place in Austin and New Mexico. Lazer Team premiered at Fantastic Fest on September 24, 2015, and was released theatrically on January 27, 2016. As of February 10, 2016, the film is also available on YouTube Red.
Satellite imaging has revolutionized our knowledge of the Earth, with detailed images of nearly every street corner readily available online. But Planet Labs' Will Marshall says we can do better and go faster — by getting smaller. He introduces his tiny satellites — no bigger than 10 by 10 by 30 centimeters — that, when launched in a cluster, provide high-res images of the entire planet, updated daily. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and much more. Find closed captions and translated subtitles in many languages at http://www.t...
When four small-town losers stumble across an alien crash site containing an incredible battle suit, they soon find themselves responsible for the fate of the entire planet. With this new alien equipment genetically bound to them, and the government hot on their heels, the foursome have no choice but to work together as one to save humanity. All they have to do is learn to use a strange alien device meant for only one person, train for a battle against an omnipotent enemy, and not kill each other in the process. They may not be strong, smart, or talented... but they’re Lazer Team. Lazer Team is directed by Matt Hullum and stars Burnie Burns, Gavin Free, Michael Jones, Allie DeBerry, Colton Dunn and features Alan Ritchson. YouTube Red Original Movie youtube.com/red Check out the Lazer Tea...
GPS is just a big clock in space! (and it can detect nuclear explosions) Trying out a new feature: English Transcript! Let me know how it works Tweet it - http://bit.ly/ufPyF7 Facebook it - http://on.fb.me/vBkxlV minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder youtube: http://bit.ly/pakJLE myspace: http://mysp.ac/qtmZQj Created by Henry Reich
What's the tallest THING we've ever built? How tall will we EVER be able to build? Follow Michael Stevens: http://www.twitter.com/tweetsauce http://www.Facebook.com/VsauceGaming music by: http://www.Soundcloud.com/JakeChudnow Links: see two sunrises/sunsets and calculate the Earth's Radius: http://www.darylscience.com/downloads/DblSunset.pdf also HERE: http://www.astro.princeton.edu/~dns/teachersguide/MeasECAct.html Tallest Structures TIMELINE: http://en.wikipedia.org/wiki/Timeline_of_three_tallest_structures_in_the_world Tallest list incorporating building/structure distinction: http://en.wikipedia.org/wiki/List_of_tallest_buildings_and_structures_in_the_world falling person and terminal velocity: http://www.newton.dep.anl.gov/askasci/phy00/phy00012.htm KWTV, first radio mast tall...
Physics of contraptions meant to go faster than light. Audible: http://bit.ly/AudibleVe My video about the problem with Facebook: http://bit.ly/PwFB Special thanks to MinutePhysics for visual effects and Prof. Geraint Lewis for revisions to earlier drafts of this video.
What if the Earth stopped spinning? LEARN MORE BELOW! follow Michael Stevens: http://www.twitter.com/tweetsauce instagram: http://instagram.com/electricpants facebook: https://www.facebook.com/VsauceGaming Courtly Love "Mirage": https://www.youtube.com/watch?v=Yv_CSShi1vU music by: https://www.youtube.com/user/jakechudnow Faster Earth-spin physics: http://curious.astro.cornell.edu/question.php?number=310 http://www.physicsforums.com/showthread.php?t=603143 http://www.physicsforums.com/showthread.php?t=403191 If Earth stopped spinning: http://www.esri.com/news/arcuser/0610/nospin.html http://astrobob.areavoices.com/2013/07/30/if-the-earth-stops-spinning-wed-be-in-big-trouble/ http://image.gsfc.nasa.gov/poetry/ask/q1168.html http://www.astronomycafe.net/qadir/q2947.html http://science...
Watch DEATH BATTLE and other ScrewAttack series early by becoming a ScrewAttack Sponsor. We greatly appreciate your support: http://www.bit.ly/SponsorScrewAttack DEATH BATTLE is back with a match made in heaven! From Devil May Cry and the Umbra Witches! These supernatural warriors enjoy slaying angels and demons in their spare time, but against each other who will come out on top? We're on our way to THREE MILLION SUBS! Subscribe here (http://bit.ly/SubtoScrewAttack) for daily videos! Wiz: Ben Singer Ben B. Singer - https://twitter.com/benbsinger Boomstick: Chad James http://www.twitter.com/ScrewAttackChad Writer: Nick Cramer http://www.twitter.com/THENervousNick Animator: Torrian Crawford http://www.twitter.com/AnimatedTorrii Animation Asst: Da Vaughn "Deejay" Henderson Jr. http://...
Subscribe to MinutePhysics - it's FREE! http://dft.ba/-minutephysics_sub For recent scientific publications on the walk/rain question: http://iopscience.iop.org/0143-0807/33/5/1321 MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to Nima Doroud for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich Created by Henry Reich
There's more over on MinutePhysics' channel RIGHT HERE: http://www.youtube.com/watch?v=jN-FfJKgis8 Follow Michael Stevens: https://twitter.com/tweetsauce I'm pretty sure that subscribing to MinutePhysics was one of Newton's Laws: http://www.youtube.com/subscription_center?add_user=minutephysics Music by Jake Chudnow: music by Jake Chudnow: http://www.soundcloud.com/JakeChudnow Jake's channel: http://www.youtube.com/jakechudnow Planet size comparrison: http://sciencenetlinks.com/interactives/messenger/psc/PlanetSize.html Gravity's pull from different altitudes: http://physics.stackexchange.com/questions/29929/gravity-on-the-international-space-station shoot gun on moon / in space: http://www.lifeslittlemysteries.com/2167-gun-shoot-space.html Paris Gun: http://en.wikipedia.org/wiki/Pa...
A look at the concept of Self-Replicating Machines, Universal Assemblers, von Neumann Probes, Grey Goo, and Berserkers. While we will discuss the basic concept and some on-Earth applications like Medical Nanotechnology our focus will be on space exploration and colonization aspects. Join the Facebook Group: https://www.facebook.com/groups/1583992725237264/ Visit our Website: www.IsaacArthur.net Support the Channel on Patreon: https://www.patreon.com/IsaacArthur Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/cs08-black-hole-starships Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier Answers with Joe Scott Channel: http://www.youtube.com/user/jnightandday King of Random Channel: https://www.youtube....