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Quantum Computers Explained – Limits of Human Technology
View full lesson: https://ed.ted.com/lessons/can-you-solve-the-bridge-riddle-alex-gendler
Taking that internship in a remote mountain lab might not have been the best idea. Pulling that lever with the skull symbol just to see what it did probably wasn’t so smart either. But now is not the time for regrets because you need to get away from these mutant zombies...fast. Can you use math to get you and your friends over the bridge before the zombies arrive? Alex Gendler shows how.
Lesson by Alex Gendler, animation by Artrake Studio.
View full lesson: http://ed.ted.com/lessons/how-speaking-multiple-languages-benefits-the-brain-mia-nacamulli
It’s obvious that knowing more than one language can make certain things easier — like traveling or watching movies without subtitles. But are there other advantages to having a bilingual (or multilingual) brain? Mia Nacamulli details the three types of bilingual brains and shows how knowing more than one language keeps your brain healthy, complex and actively engaged.
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For more on spin, check out: http://youtu.be/v1_-LsQLwkA
This video was supported by TechNYou: http://bit.ly/19bBX5G
A quantum computer works in a totally different way from a classical computer. Quantum bits or 'qubits' can exist in a superposition state of both zero and one simultaneously. This means that a set of two qubits can be in a superposition of four states, which therefore require four numbers to uniquely identify the state. So the amount of information stored in N qubits is two to the power of N classical bits.
Thank you to Andrea Morello and UNSW. For more info, check out: http://bit.ly/17wZ7lt
Stanford Professor Andrei Linde celebrates physics breakthrough
Assistant Professor Chao-Lin Kuo surprises Professor Andrei Linde with evidence that supports cosmic inflation theory. The discovery, made by Kuo and his colleagues at the BICEP2 experiment, represents the first images of gravitational waves, or ripples in space-time. These waves have been described as the "first tremors of the Big Bang."
Producer: Bjorn Carey
Video: Kurt Hickman
For more on the discovery, see: http://news.stanford.edu/news/2014/march/physics-cosmic-inflation-031714.html
Quantum Entanglement & Spooky Action at a Distance
Does quantum entanglement make faster-than-light communication possible?
What is NOT random? http://bit.ly/NOTrandoVe
First, I know this video is not easy to understand. Thank you for taking the time to attempt to understand it. I've been working on this for over six months over which time my understanding has improved. Quantum entanglement and spooky action at a distance are still debated by professors of quantum physics (I know because I discussed this topic with two of them).
Does hidden information (called hidden variables by physicists) exist? If it does, the experiment violating Bell inequalities indicates that hidden variables must update faster than light - they would be considered 'non-local'. On the other hand if you don't consider the spins before you make the measurement then you could simply say hidden variables don't exist and whenever you measure spins in the same direction you always get opposite results, which makes sense since angular momentum must be conserved in the universe.
Everyone agrees that quantum entanglement does not allow information to be transmitted faster that light. There is no action either detector operator could take to signal the other one - regardless of the choice of measurement direction, the measured spins are random with 50/50 probability of up/down.
Special thanks to:
Prof. Stephen Bartlett, University of Sydney: http://bit.ly/1xSosoJ
Prof. John Preskill, Caltech: http://bit.ly/1y8mJut
Looking Glass Universe: http://bit.ly/17zZH7l
Physics Girl: http://bit.ly/PhysGirl
Community Channel: http://bit.ly/CommChannel
Nigel, Helen, Luke, and Simon for comments on earlier drafts of this video.
Filmed in part by Scott Lewis: http://google.com/+scottlewis
Music by Amarante "One Last Time": http://bit.ly/VeAmarante
What causes addiction? Easy, right? Drugs cause addiction. But maybe it is not that simple.
This video is adapted from Johann Hari's New York Times best-selling book 'Chasing The Scream: The First and Last Days of the War on Drugs.' For more information, and to take a quiz to see what you know about addiction, go to www.chasingthescream.com
Support us on Patreon so we can make more stuff: https://www.patreon.com/Kurzgesagt?ty=h
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Everything We Think We Know About Addiction Is Wrong
Grit: the power of passion and perseverance | Angela Lee Duckworth
Leaving a high-flying job in consulting, Angela Lee Duckworth took a job teaching math to seventh graders in a New York public school. She quickly realized that IQ wasn't the only thing separating the successful students from those who struggled. Here, she explains her theory of "grit" as a predictor of success.
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