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.
Who Lives At The Bottom Of The Mariana Trench?
AdultsAnimalsEnvironmentNature...Creepy Monsters At The Bottom Of The Mariana Trench.
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.
Meet NASA's new class of astronauts
AdultsScienceTechnologySpaceMore than 18,300 candidates applied to be astronauts in NASA's latest class-smashing the record of 8,000 applicants in 1978-and only 12 got the job. Here's who made the cut.
Jumping Water Droplets Could Be the Future of Cooling Computers
AdultsSoftware EngineeringTechnologyEngineering...Engineers have created a new water-based cooling system that could put an end to electronics crashing and overheating.
The ferocious predatory dinosaurs of Cretaceous Sahara - Nizar Ibrahim
AdultsAnimalsHistoryWorld...In Cretaceous times (around 100 million years ago), North Africa was home to a huge river system and a bizarre menagerie of giant prehistoric predators -- including the Spinosaurus, a dinosaur even more fearsome than the Tyrannosaurus rex. Nizar Ibrahim uses paleontological and geological data to reconstruct this "River of Giants" in surprising detail.
This Is Not What Space Looks Like
AdultsPhotographySpaceTechnology...Amazing images of the far reaches of the universe are everywhere, but are they accurate? What does space really look like?
NASA Is Going to the Sun! But How...and Why?
AdultsScienceSpaceTechnologyIn 2018, NASA will launch a solar probe that will travel closer to the sun than any spacecraft before. But why? What are they looking for?
Why don't perpetual motion machines ever work? - Netta Schramm
AdultsScienceTechnologyWork...Perpetual motion machines - devices that can do work indefinitely without any external energy source - have captured many inventors' imaginations because they could totally transform our relationship with energy. There's just one problem: they don't work. Why not? Netta Schramm describes the pitfalls of perpetual motion machines.
Four inventions that might change the world
AdultsCreativityFutureScience...Tiny lab-grown organs. A spongy cloth that absorbs oil spills. Sure, why not. These are some of the finalists for the European Inventor Award.
Moore's Law Is Ending... So, What's Next?
AdultsFutureSoftware EngineeringTechnology...Scientists are engineering a new, more efficient generation of computer chips by modeling them after the human brain.