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.
Is time travel possible?
AdultsPhysicsScienceTime travel is a staple of science fiction stories, but is it actually possible? It turns out nature does allow a way of bending time, an exciting possibility suggested by Albert Einstein when he discovered special relativity over one hundred years ago. Colin Stuart imagines where (or, when) this fascinating phenomenon, time dilation, may one day take us.
Hawking presents new idea on how information could escape black holes
AdultsPhysicsScienceTechnologyThe presentation was made at the Hawking Radiation conference, which was co-hosted by the theoretical physics institute, Nordita, and the University of North Carolina, on the campus of KTH Royal Institute of Technology in Stockholm. Nordita is driven by both KTH and Stockholm University.
How to Launch a Nuclear Missile
AdultsLifeScienceTechnologyWhat was the procedure to launch a nuclear missile?
Uranium: Twisting the Dragon's Tail
AdultsScienceTechnologyUranium is a unique element, used in research, medicine, space travel, and of course weapons.
How to Turn Water into Wine - Science Trick
AdultsFoodScienceTurn water into wine! This simple science experiment demonstrates how fluids with different density can switch places. Fun to use as a magic party trick or as a demonstration for a physics experiment. Watch as the water switches place with the wine, because water has a higher density then wine. You could try using a playing card instead of the thin plastic spacer.
The Surprising Places We Waste Energy
AdultsGlobal WarmingScienceTechnologyWe use a LOT of energy, but we waste a lot too. Where that waste happens might surprise, you though. We don't just waste energy when we leave the lights on or the thermostat cranked down too low. It happens at the dinner table and the water faucet as too!