science stories

Shake your head back and forth. Did you feel like you were making an absolutely insane looking expression? Probably not, but, as you'll see in this video (which would make a great screensaver), viewed in slow motion you would have — most likely, just for a moment — appeared rather silly.
Whether we call it the fountain of youth, or just a beauty potion, humanity has long been on the hunt for a magic elixir to ward off the effects of aging. Now a research team in China has reportedly come up with what they believe could in fact be a real anti-aging formula.
Everything from big budget science fiction films to very real ancient texts have primed us for any number of doomsday scenarios promising to bring an end to civilization as we know it. But none have gained more traction in recent years than the Mayan calendar end-of-days prophecy. To address these concerns, NASA has released a new video in which the agency seeks to debunk any fears of a cosmic catastrophe.
Most of us are aware that inhaling a mouthful of helium can give a person's voice a humorous, high-pitched tone that mimics a vocal recording played at high speed. But what some of you may not know is there is in fact another gas that has exactly the opposite effect, as a simple science lesson recently delivered by a high school teacher shows.
For heart patients, signing up to implant a pacemaker in your chest isn't casual choice. Nevertheless, the technology has saved numerous lives over the years. This week a new development was unveiled that uses a similar device to treat to Alzheimer's patients with what's essentially a pacemaker for the brain.