The snakey, viney robot that can go almost anywhere
AdultsCreativityScienceTechnology...Researchers at Stanford University developed a soft, squishy robot that "grows" like a vine and can squeeze through tight spaces. It can also lift heavy objects, which makes it potentially ideal for search-and-rescue operations.
The sound illusion that makes Dunkirk so intense
AdultsCreativityFilmScienceWhy Christopher Nolan is obsessed with Shepard tones.
What happens when you have a concussion? - Clifford Robbins
AdultsHealthNeuroscienceSports...Each year in the United States, players of sports and recreational activities receive between 2.5 and 4 million concussions. How dangerous are all those concussions? The answer is complicated and lies in how the brain responds when something strikes it. Clifford Robbins explains the science behind concussions.
The bizarre physics of fire ants
AdultsAnimalsNatureTechnology...They're not just an animal, they're a material. And that's got engineers interested.
Can you find the next number in this sequence? - Alex Gendler
AdultsCreativityMathScience...1, 11, 21, 1211, 111221. These are the first five elements of a number sequence. Can you figure out what comes next? Alex Gendler reveals the answer and explains how beyond just being a neat puzzle, this type of sequence has practical applications as well.
How does caffeine keep us awake? - Hanan Qasim
AdultsAddictionFoodHealth...Over 100,000 metric tons of caffeine are consumed around the world every year. That's equivalent to the weight of 14 Eiffel Towers! Caffeine helps us feel alert, focused, and energetic, even if we haven't had enough sleep - but it can also raise our blood pressure and make us feel anxious. So how does it keep us awake? Hanan Qasim shares the science behind the world's most widely used drug.
Why people think they see ghosts
AdultsPsychologySpiritualityScience...Even though there is no scientific evidence that ghosts exist, you may not be crazy if you see one.
How ancient Romans made stronger concrete than today
AdultsCitiesConstructionHistory...Many structures built by ancient Romans around 2,000 years ago are still standing, and some are still in excellent condition. Over the last decade, researchers have come discover the Romans' secret concrete recipe that has maintained so many of its now-ancient buildings.
A popular way to cook broccoli removes important nutrients
AdultsFoodScienceHealth...Broccoli is one of the most nutritious vegetables. However, boiling it takes many of those essential nutrients out. There's a simpler way to cook it and retain all the nutrition. Following is a complete transcript of the video.
What can you learn from ancient skeletons? - Farnaz Khatibi
AdultsHistoryHumanScience...Ancient skeletons can tell us a great deal about the past, including the age, gender and even the social status of its former owner. But how can we know all of these details simply by examining some old, soil-caked bones? Farnaz Khatibi examines a fascinating branch of science known as biological anthropology.