The science of skin color
AdultsHumanScienceTechnology...When ultraviolet sunlight hits our skin, it affects each of us differently. Depending on skin color, it'll take only minutes of exposure to turn one person beetroot-pink, while another requires hours to experience the slightest change.
How do schools of fish swim in harmony?
AdultsBiologyHumanNeuroscienceHow do schools of fish swim in harmony? How do the tiny cells in your brain give rise to the complex thoughts, memories, and consciousness that are you?
Do Blind People Understand Vision? TommyEdisonXP
AdultsDisabilityHumanTommy Edison, who has been blind since birth, talks about his understanding of vision, what impresses him about sight, and one fear that's motivated by blindness.
What would happen if you didn't drink water?
AdultsBiologyHealthHumanWater is essentially everywhere in our world, and the average human is composed of between 55 and 60% water. So what role does water play in our bodies, and how much do we actually need to drink to stay healthy? Mia Nacamulli details the health benefits of hydration.
This Is the Most Amazing Biomimetic Robot Hand You've Ever Seen
AdultsBiotechnologyHumanScienceThird arm? Robot tentacle? My dreams of having extra tentacles may come true!
The Specious Present
AdultsHumanNeurosciencePsychology...What is the specious present? And how do our brains perceive time?
Why are some people left-handed?
AdultsData ScienceHistorySociety...Today, about one-tenth of the world's population are southpaws. Why are such a small proportion of people left-handed -- and why does the trait exist in the first place? Daniel M. Abrams investigates how the uneven ratio of lefties and righties gives insight into a balance between competitive and cooperative pressures on human evolution.
GoPro: Pelican Learns To Fish
AdultsAnimalsHumanRelationships...After being separated from his flock during a storm, Bigbird the pelican was taken in by the staff at a safari camp. Jeffrey, the camp manager, took Bigbird out each morning to fish and developed an unlikely friendship.
Why is my voice different when I hear a recording?
AdultsPsychologyScienceHumanA weekly show where we endeavor to answer one of your big questions. This week, Kristina Bailey asks, "Why does our voice sound different when we hear an audio or video recording of it?"
Why Do We Cry?
AdultsScienceHumanPsychology...Why does your face leak when you're sad or emotional?
Why Do We Have To Sleep?
AdultsHealthHumanScienceWhy do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here's a look at how sleep works, why we're not getting enough sleep, what happens if you DON'T sleep, and an idea about where sleep came from in the first place.
The benefits of good posture
AdultsHealthHumanWorkHas anyone ever told you, "Stand up straight!" or scolded you for slouching at a family dinner? Comments like that might be annoying-but they're not wrong. Your posture is the foundation for every movement your body makes and can determine how well your body adapts to the stresses on it. Murat Dalkilinç gives the pros of good posture.
Can You Perceive Acceleration?
AdultsHumanPhysicsHow do our eyes scan across a landscape? Contrary to popular belief, they don't scan smoothly across a scene, they observe a series of images. The eye is capable of panning smoothly however. If something moves in your field of view, your eyes track it smoothly.
New Human Ancestor Discovered: Homo naledi
AdultsHistoryHumanWithin a deep and narrow cave in South Africa, paleoanthropologist Lee Berger and his team found fossil remains belonging to the newest member of our human family. The Homo naledi discovery adds another exciting chapter to the human evolution story by introducing an ancestor that was primitive but shared physical characteristics with modern humans.
Do We Have to Get Old and Die?
AdultsBiologyHumanWe'd like to thank Focus Features for sponsoring this video - and for inviting us to pre-screen their summer 2015 film "Self/Less". It's a sci-fi flick that explores memory, consciousness, and immortality, and it made us think about the types of immortality that already exist here on Earth.