New exercises and videos from Khan Academy 2013-05-21T04:46:38.960410 http://www.khanacademy.org/feed/combined Khan Academy http://khanacademy.org info@khanacademy.org 2013-05-21T04:46:38.960410 fermat-primality-test--prime-adventure-part-10 A quick outline of how & why it works. <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="xMj3jzFDZ38" src="https://www.youtube.com/embed/xMj3jzFDZ38?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/_f9DGlO03FU" height="1" width="1"/> http://www.khanacademy.org/video/fermat-primality-test--prime-adventure-part-10 2013-05-21T01:25:13.873160 stabilization-of-conjugate-base-iv The effect of hybrid orbitals on acidity <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="YreF8RRu_pA" src="https://www.youtube.com/embed/YreF8RRu_pA?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/IwU9be44stI" height="1" width="1"/> http://www.khanacademy.org/video/stabilization-of-conjugate-base-iv 2013-05-21T01:25:13.510270 the-classical-orders The Classical Orders (Doric, Ionic and Corinthian) A conversation with Dr. Steven Zucker & Dr. Beth Harris <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="nrRJkzXl4a4" src="https://www.youtube.com/embed/nrRJkzXl4a4?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/KtXV_iHvpQQ" height="1" width="1"/> http://www.khanacademy.org/video/the-classical-orders 2013-05-21T01:25:13.091020 stabilization-of-conjugate-base-iii Inductive effects on acidity <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="0RKGWzbknbU" src="https://www.youtube.com/embed/0RKGWzbknbU?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/8fZSn7i1b7Q" height="1" width="1"/> http://www.khanacademy.org/video/stabilization-of-conjugate-base-iii 2013-05-13T21:35:07.090860 the-harrowing-of-hell--c--1440-70 The Harrowing of Hell, c. 1440-70, carved painted and gilt alabaster, 58.3 x 31.5 cm (Victoria and Albert Museum) Speakers: Dr. Nancy Ross and Dr. Paul Binski <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="katx69CGBwo" src="https://www.youtube.com/embed/katx69CGBwo?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/PQjEQMXvBUk" height="1" width="1"/> http://www.khanacademy.org/video/the-harrowing-of-hell--c--1440-70 2013-05-10T23:02:39.303450 how-one-point-linear-perspective-works Speakers: Dr. Steven Zucker & Dr. Beth Harris <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="eOksHhQ8TLM" src="https://www.youtube.com/embed/eOksHhQ8TLM?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/qvsdKl6oUGY" height="1" width="1"/> http://www.khanacademy.org/video/how-one-point-linear-perspective-works 2013-05-10T15:39:32.101380 bitcoin-security-of-transaction-block-chains A detailed explanation of what makes bitcoin transaction block chains secure. <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="8zgvzmKZ5vo" src="https://www.youtube.com/embed/8zgvzmKZ5vo?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/DK-JJQu9Yiw" height="1" width="1"/> http://www.khanacademy.org/video/bitcoin-security-of-transaction-block-chains 2013-05-08T03:35:45.164560 giovanni-bellini--san-zaccaria-altarpiece--1505 Giovanni Bellini, San Zaccaria Altarpiece, 1505, oil on wood transferred to canvas, 16 feet 5-1/2 inches x 7 feet 9 inches (San Zaccaria, Venice) Speakers: Dr. Beth Harris & Dr. Steven Zucker <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="NCu83PcEQ1U" src="https://www.youtube.com/embed/NCu83PcEQ1U?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/xoicp-C9RWk" height="1" width="1"/> http://www.khanacademy.org/video/giovanni-bellini--san-zaccaria-altarpiece--1505 2013-05-08T03:35:44.670870 robert-motherwell--elegy-to-the-spanish-republic-no--57--1957-60 Robert Motherwell, Elegy to the Spanish Republic No. 57, 1957-60, oil on canvas, 84 x 109-1/8 inches (San Francisco Museum of Modern Art) Speakers: Dr. Beth Harris and Dr. Steven Zucker <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="C89z5GncK88" src="https://www.youtube.com/embed/C89z5GncK88?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/dYcBFMdeTW0" height="1" width="1"/> http://www.khanacademy.org/video/robert-motherwell--elegy-to-the-spanish-republic-no--57--1957-60 2013-05-06T13:49:45.542810 solderless-spout-7 <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="_QdS8xjYL48" src="https://www.youtube.com/embed/_QdS8xjYL48?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/WI8Si1TvBCs" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-7 2013-05-06T13:49:45.414440 solderless-spout-11 <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="AwX4O87g1qk" src="https://www.youtube.com/embed/AwX4O87g1qk?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/dR-ipxhvwlg" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-11 2013-05-06T13:49:45.339200 solderless-spout-3 <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="8XKFcz7zP5E" src="https://www.youtube.com/embed/8XKFcz7zP5E?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/w-isbvpBNQA" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-3 2013-05-06T13:49:44.974760 solderless-spout-5 <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="Q1XPg-2KB_A" src="https://www.youtube.com/embed/Q1XPg-2KB_A?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/_XOKw2dn4D8" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-5 2013-05-06T13:49:44.973860 solderless-spout-4 <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="PI5WiM98S8U" src="https://www.youtube.com/embed/PI5WiM98S8U?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/ymyXQ1dwgEQ" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-4 2013-05-06T13:49:44.783830 solderless-spout-8 <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="ZbN_ispEm3A" src="https://www.youtube.com/embed/ZbN_ispEm3A?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/15a0WtYDTbM" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-8 2013-05-06T13:49:44.592860 solderless-spout-10 <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="mDttV5UmJ1Q" src="https://www.youtube.com/embed/mDttV5UmJ1Q?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/gGbDULL2yiA" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-10 2013-05-06T13:49:44.515420 solderless-spout-6 <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="gyXzJ3as26k" src="https://www.youtube.com/embed/gyXzJ3as26k?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/NWnDGfDrv28" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-6 2013-05-06T13:49:44.408190 solderless-spout-9 <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="VIdvlSFDl2c" src="https://www.youtube.com/embed/VIdvlSFDl2c?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/vccJdUOd5Uk" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-9 2013-05-06T13:28:11.188520 solderless-spout-2 <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="xRw0CLvQkjo" src="https://www.youtube.com/embed/xRw0CLvQkjo?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/PrFAgN0zQW8" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-2 2013-05-06T13:28:10.237450 solderless-spout-1 Make Spout a low cost beetle bot that can avoid obstacles. Spout is low cost and can be made without solder. <br><br> <div class="player-container"> <iframe class="player" type="text/html" width="800" height="480" data-youtubeid="bqcVNzObJec" src="https://www.youtube.com/embed/bqcVNzObJec?enablejsapi=1&wmode=transparent&modestbranding=1&rel=0&fs=1&showinfo=1" frameborder="0" allowfullscreen webkitallowfullscreen mozallowfullscreen ></iframe> </div> <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/poHdzm2x03c" height="1" width="1"/> http://www.khanacademy.org/video/solderless-spout-1 2013-05-17T02:13:27.204020 interpret-features-func-2 <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/gO5RhS_BmIw" height="1" width="1"/> elizabeth http://www.khanacademy.org/exercise/interpret-features-func-2 2013-05-17T02:13:27.117450 recog-features-func-2 <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/f8ZfKdGUiAo" height="1" width="1"/> elizabeth http://www.khanacademy.org/exercise/recog-features-func-2 2013-05-13T22:28:44.498260 newtons-third-law Conceptual question testing understanding of Newton's Third Law of Motion <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/zPYAffslmYs" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/newtons-third-law 2013-05-13T17:51:25.838440 recog-func-2 <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/ySFBZwj5-wU" height="1" width="1"/> elizabeth http://www.khanacademy.org/exercise/recog-func-2 2013-05-11T00:13:30.362630 newtonsfirst Testing your conceptual knowledge of Newton's First Law of Motion <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/Gp1Qrieekr8" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/newtonsfirst 2013-05-10T23:02:38.443810 newtons-laws <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/GHR4Varw5Qs" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/newtons-laws 2013-05-08T03:35:44.716200 adolf-hitler <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/3hHkS3Kz61c" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/adolf-hitler 2013-05-07T19:13:01.181840 recursive_explicit <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/bdrN9C3ZWW0" height="1" width="1"/> elizabeth http://www.khanacademy.org/exercise/recursive_explicit 2013-05-03T22:08:54.368960 heart-quiz <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/jRoB2r20aNU" height="1" width="1"/> Rishi Desai http://www.khanacademy.org/exercise/heart-quiz 2013-04-30T05:20:31.440930 ww1-aftermath <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/Md4J53Rbmlc" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/ww1-aftermath 2013-04-29T18:56:15.250550 protestant-reformation-quiz Test your comprehension of the political and religious issues of the Reformation and Counter-Reformation. <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/WeAVK4aD2Wk" height="1" width="1"/> Beth Harris http://www.khanacademy.org/exercise/protestant-reformation-quiz 2013-04-28T00:13:00.992070 ottomans-and-turkey <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/4L2Ao82RYJc" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/ottomans-and-turkey 2013-04-27T20:45:54.066840 mideast-ww1 <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/kF7G1cNI3ZU" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/mideast-ww1 2013-04-26T23:45:39.467180 ww1-secondary-fronts <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/tFly06ZQbp0" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/ww1-secondary-fronts 2013-04-26T11:41:09.052960 easter-western-fronts-ww1 <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/6mZhtOp6R6Q" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/easter-western-fronts-ww1 2013-04-24T22:15:57.321880 ww1blockades <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/rFWFvGHp5U4" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/ww1blockades 2013-04-19T23:21:19.555050 world-war-I-causes <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/v2AhHPWb2Kg" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/world-war-I-causes 2013-04-17T21:06:52.060080 world_war_i <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/j8VM-cF4My0" height="1" width="1"/> Sal Khan http://www.khanacademy.org/exercise/world_war_i 2013-04-02T00:05:28.854100 recognizing_functions Determine if different relationships are functions or not. <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/FcL1l7iiR0U" height="1" width="1"/> Ben Eater http://www.khanacademy.org/exercise/recognizing_functions 2013-03-19T17:46:02.673200 basic_set_notation The union, complement, and intersection of sets. <img src="http://feeds.feedburner.com/~r/KhanAcademyExercisesAndVideos/~4/wrOxdRdiRAs" height="1" width="1"/> Dave Major http://www.khanacademy.org/exercise/basic_set_notation