Category: Cosmos
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Staying awake at night…
What's keeping us up at night? One of the largest longitudinal studies to date examined evening consumption of alcohol, caffeine and nicotine among an African-American cohort and objectively measured sleep outcomes in their natural environments instead of laboratory or observatory settings. The study involved 785 participants and totaled 5,164 days of concurrent actigraphy and daily…
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Passing through walls… Broken glass…
Researchers have captured the most direct evidence to date of Klein tunneling, a quantum quirk that allows particles to tunnel through a barrier like it's not even there. The result may enable engineers to design more uniform components for future quantum computers, quantum sensors and other devices. (1) We constantly see things. We sense things.…
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Droplets carrying an ocean…
Self-cleaning surfaces and laboratories on a chip become even more efficient if we are able to control individual droplets. University of Groningen professor Patrick Onck, together with colleagues from Eindhoven University of Technology, have shown that this is possible by using a technique called mechanowetting. "We have come up with a way of transporting droplets…
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Dreamless dreams…
In a nighttime experiment called the Dream Catcher, people’s dreams slipped right through the net. Looking at only the brain wave activity of sleeping people, scientists weren’t able to reliably spot a dreaming brain. (1) Weird cosmos… No signs of dreams. And yet, we are dreaming. No signs of consciousness. And yet, I am me.…
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Longevity. Xenon 124. Universe.
Theory predicts the isotope's radioactive decay has a half-life that surpasses the age of the universe "by many orders of magnitude," but no evidence of the process has appeared until now. An international team of physicists that includes three Rice University researchers - assistant professor Christopher Tunnell, visiting scientist Junji Naganoma and assistant research professor…
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