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lchi.mp/1a6eb8f2717d/spacetime Check out the Space Time Merch Store https://pbsspacetime.com/ Want to ask some sort of crazy question about Space?: Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g Let us know what topics you want to learn more about: http://bit.ly/spacetimepoll Most of us take gravity as an assumed part of our living realities, but why? Basic physics introduces us to the concept of gravity from a Newtonian sense, but when you start factoring Einstein into an understanding of gravity, things get… weird. For example, gravity may simply not exist. Why? Watch this week’s episode of PBS Space Time and find out why gravity may be an illusion! Extra Credit: 1960 Frames of Reference video (abridged version) https://www.youtube.com/watch?v=Y75kEf8xLxI 1960 Frames of Reference video (full version) https://archive.org/details/frames_of_reference SmarterEveryDay Baffling Balloon Physics https://www.youtube.com/watch?v=y8mzDvpKzfY Einstein 1907 paper (translation) on the equivalence principle http://www.pitt.edu/~jdnorton/teaching/GR&Grav_2007/pdf/Einstein_1907.pdf Additional info the equivalence principle http://www.einstein-online.info/spotlights/equivalence_principle PBS Learning Media animation about frames of reference: http://www.pbslearningmedia.org/resource/lsps07.sci.phys.fund.frameref/frames-of-reference/ ----------------------------------------­­­­­­­­­­­­-----------------------------­-­- Comments: Miguel Portela https://www.youtube.com/watch?v=9Q_0vOdzw4Y&lc=z13ry1pogumff5rrz04cihaipqukifwjpbo Lutranereis https://www.youtube.com/watch?v=9Q_0vOdzw4Y&lc=z12pcllrpk3me35nj22kc1wbnwzvjjh4i04 Lukos0036 https://www.youtube.com/watch?v=9Q_0vOdzw4Y&lc=z13rtftpiprfcbj2o23pidj54ripyvv3a Pikminiman https://www.youtube.com/watch?v=9Q_0vOdzw4Y&lc=z134vjni4yjdzr1xq04cdbgjgrylsherqus0k Music: Buster - Patternbased (https://soundcloud.com/patternbased) Philly D Jr. - Patternbased (https://soundcloud.com/patternbased) Dr Dreidel - Patternbased (https://soundcloud.com/patternbased) Windmills - Anitek (https://soundcloud.com/anitek/02-windmills) Secret Society - Logical Disorder (http://logicaldisorder.bandcamp.com/) u dont know im fadin Pinball Beat - Patternbased (https://soundcloud.com/patternbased) miracle - slow (http://www.restingbell.net/releases/r) Heisse Luft - Thompson and Kuhl (https://soundcloud.com/phlow/05-x-com) New SpaceTime episodes every Wednesday! Hosted by Gabe Perez-Giz Made by Kornhaber Brown (www.kornhaberbrown.com)