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Have you ever been waiting in line at the grocery store, innocently perusing the magazine rack, when a song pops into your head? Not the whole song, but a fragment of it that plays and replays until you find yourself unloading the vegetables in time to the beat? Elizabeth Hellmuth Margulis explores earworms — a cognitive phenomenon that plagues over 90% of people at least once a week.
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Porifera Ohm's profile photoRachel Flick's profile photoalexis harris's profile photoFang Yiyang's profile photo
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+Frank Elliott wow Frank,
Well thank you for the back story and the sources. it was really helpful. good luck in your career mate, sorry I don`t have any else to add but that.

btw you are very kind person in the internet one of the willing people that actually wants to help others in-need of information.

nowadays it`s very rare to find people like you.
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rivers to the clouds and back again. It even makes up about 60% of our bodies. But in the rest of the solar system, liquid water is almost impossible to find. So how did our planet end up with so much of this substance? And where did it come from? Zachary Metz outlines the ancient origins of water on Earth.
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Ivone de Figueiredo (idefig)'s profile photoBrian Doyle's profile photoSilvia Rettaroli's profile photoRachel Flick's profile photo
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+IKtheVS
Or through combustion. They also bond as part of aerobic metabolism, and are split in photosynthesis.
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Twenty four hundred years ago, Plato, one of history’s most famous thinkers, said life is like being chained up in a cave forced to watch shadows flitting across a stone wall. Beyond sounding quite morbid, what exactly did he mean? Alex Gendler unravels Plato's Allegory of the Cave, found in Book VII of "The Republic."
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Ray White's profile photoMargaret Janssen's profile photoNatalie Kuljanishvili's profile photoMichael Mills's profile photo
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JahMint
 
+Christian Gómez subliminal messages. I also wondered why he was naked. mabie to distract us from what was being said, might have been more important than what was being shown. good observation none the less.
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When you think of Archimedes’ Eureka moment, you probably imagine a man in a bathtub, right? As it turns out, there's much more to the story. Armand D'Angour tells the story of Archimedes' biggest assignment -- an enormous floating palace commissioned by a king -- that helped him find Eureka.
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Benjamin Trotter's profile photoSiyanda Majola's profile photoSARAH BERGMAN's profile photodaniel barba's profile photo
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sho
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The biggest challenge in a parasite’s life is to move from one host to another. Intriguingly, many parasites have evolved the ability to manipulate the behavior of their hosts to improve their own survival -- sometimes even by direct brain control. Jaap de Roode details a few parasites that can really mess with the mind.
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J Hendricks's profile photoJeff starship's profile photoDavid Hillam's profile photodaniel barba's profile photo
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JEFF IS THE KEY
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Many modern musical instruments are complicated pieces of machinery with many moving parts. But the cajon is simply a drum and a stand and a seat all in one box. Paul Jennings explains the history behind the cajon and how it has become one of the most versatile and popular percussion instruments in the world today.
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April Segismundo's profile photoEileen Rose's profile photoMohamed Mosala's profile photoRachel Flick's profile photo
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Mearc
 
Great vid!
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While we might consider elections to be the cornerstone of democracy, the Athenians who coined the term actually employed a lottery system to choose most of their politicians. Melissa Schwartzberg describes the ins and outs of the Athenian democracy, and addresses some ways in which a lottery system might benefit us today. 
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Richard Stephenson's profile photoRowan Hofmeister's profile photoJ H. Booth's profile photoIvone de Figueiredo (idefig)'s profile photo
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I wish we did this now and I wish it was the only method with the word democracy attached to it. What most of us live under now is a frail and often distant cousin to direct-democracy.
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People have been grappling with the question of artificial creativity -- alongside the question of artificial intelligence -- for over 170 years. For instance, could we program machines to create high quality original music? And if we do, is it the machine or the programmer that exhibits creativity? Gil Weinberg investigates this creative conundrum.
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WILLIAM ACOSTA's profile photoStrongMinds Education's profile photoAmy McGovern's profile photoMarina Yeary's profile photo
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Interesante  video jajjajajaj
 ·  Translate
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In 2008, something incredible happened: a man was cured of HIV. In over 70 million HIV cases, this was a first, and, so far, a last, and we don’t yet understand exactly how he was cured. But if we can cure people of various diseases, like malaria and hepatitis C, why can’t we cure HIV? Janet Iwasa examines the specific traits of the HIV virus that make it so difficult to cure.
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Hawa Kamara's profile photodaniel barba's profile photoRachel Flick's profile photoMichael Mills's profile photo
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Germ-line engineering might be the key for curing HIV\AIDS, another reason to develop that technology instead of delaying it.
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For most of human history, we have sought to treat and cure diseases. But only in recent decades did it become possible to ensure that a particular disease never threatens humanity again. Julie Garon and Walter A. Orenstein detail how the story of smallpox – the first and only disease to be permanently eliminated – shows how disease eradication can happen, and why it is so difficult to achieve. 
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Veneta Buyuklieva-Stolinchev's profile photoPaul Beavers's profile photoChee Keen Lau's profile photoSusan Ruiz's profile photo
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Are we talking about radio waves magnetic waves
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Sitting down for brief periods can help us recover from stress or recuperate from exercise. But nowadays, our lifestyles make us sit much more than we move around. Are our bodies built for such a sedentary existence? Murat Dalkilinç investigates the hidden risks of sitting down. 
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Lilian Rivas's profile photoSARAH BERGMAN's profile photodaniel barba's profile photoRosy Aguilar's profile photo
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+TED-Ed What's better? Sitting or lying down?
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Nestled in the tissues of your neck is a small, unassuming organ that wields enormous power over your body: the thyroid. Emma Bryce explains how the thyroid, like the operations manager in a company, is tasked with making sure that all the cells in your body are working properly. 
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Whole Body Health's profile photojudy Beme's profile photoMero  Albert's profile photodaniel barba's profile photo
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Imagine the problems we will solve when we can effectively 4d print personalized thyroid glands. 
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TED-Ed is TED's new education initiative.
Introduction
TED-Ed's mission is to capture and amplify the voices of great educators around the world. We do this by pairing extraordinary educators with talented animators to produce a new library of curiosity-igniting videos. Our site, ed.ted.com, features these new TED-Ed Originals as well as some powerful new learning tools.

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