In this fascinating video from TED-Ed, dive into the science of how prolonged space travel changes the human body. From muscle atrophy to fluid shifts and more, find out how even with advanced technology like pressurized suits, oxygen tanks, and insulation, the space environment presents unique challenges.
Ever wondered if the immense pressure in the deep ocean keeps it from freezing? While pressure can indeed melt ice, it takes a lot to make a difference. At 500 times atmospheric pressure, ice melts at -4°C; at 1000 times, it melts at -9°C. For saltwater, which freezes at -2°C at the surface, the freezing […]
SpaceX’s Polaris Dawn mission aims to test newly designed spacesuits. SpaceX, CC BY-NC-ND Wendy Whitman Cobb, Air University SpaceX’s upcoming Polaris Dawn mission aims to be historic in more ways than one. Polaris Dawn plans to not only orbit Earth higher than any astronauts have in more than 50 years but to also feature the […]
From Wondrous Walk: Explore the incredible diversity of animal pupils and discover how their unique shapes reflect each animal’s role in its ecosystem. When you look into the eyes of various animals, you’ll notice some extraordinarily shaped pupils. For example, house cats are twilight hunters with vertically elongated pupils. Many grazing animals, like goats, have […]
Luiza Kamalova/Shutterstock Adam Taylor, Lancaster University Social media challenges can range from bizarre, hilarious to downright dangerous – it seems there’s no limit to what some people will do for likes. Take the “gallon challenge”, for instance. Social media influencers encouraged their followers to consume a gallon (3.78L in the UK) of milk in 60 […]
Ever wondered if drinking raw milk is a good idea? Spoiler: It’s not. In the latest Reactions video by the American Chemical Society, Alex Dainis (PhD in genetics) dives into why consuming raw milk can be dangerous. But here’s the twist: Alex discovers she’s been unknowingly consuming raw milk through cheese! Watch the full video […]
PeopleImages.com – Yuri A/Shutterstock Justin Stebbing, Anglia Ruskin University Consuming too much caffeine is definitely bad for your health, and there may be good reasons why some people want to quit it altogether. But if you despair at the idea of giving up your morning coffee, fear not. There’s lots of research out there to […]
People have long believed that the moon’s phases influence the menstrual cycle, but actually, it might not be the key player after all! In this video from SciShow, discover why we might have been looking at the wrong celestial body for answers. [SciShow]
Ever wondered how bulletproof vests manage to stop bullets while staying light and flexible? Check out this TED-Ed video: “How do bulletproof vests work?” By 1975, Richard Davis had been shot at close range 192 times, but not a scratch—thanks to his groundbreaking invention: the bulletproof vest! Discover the chemistry behind Kevlar, the synthetic fiber […]
Imagine draining our planet’s seas and dumping all that water onto the Curiosity rover. How would the Red Planet change as it fills up with Earth’s oceans? This is exactly the scenario we’re exploring in the latest video from xkcd’s “What If?”