Krista Potrzebowski

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The 9 Deadliest Viruses on Earth

1 of 11<p>Introduction<p>Humans have been battling viruses since before our species had even evolved into its modern form. For some viral diseases, …

Disease

Cannabis can be highly addictive, major study finds

Research conducted over 20 years links long-term cannabis use with mental illness, lower academic attainment and lower birth-weight of children<p>Cannabis can be highly addictive, cause mental health problems and lead to hard drug use, according to a major study led by a leading British expert on …

Scientist Gives Himself Fecal Transplant To Try A Hunter-Gatherer's Microbiome

Why a field researcher from America has exposed his colon to the gut microbiome of a tribesman from Tanzania<p>It's not often we encounter a story that begins with a line like this:<p>“AS THE SUN set over Lake Eyasi in Tanzania, nearly thirty minutes had passed since I had inserted a turkey baster into …

How We Could Actually Build a Space Colony

In our cosmic megastructures series, Popular Mechanics explores some of the key engineering and design challenges in constructing gigantic structures for use by humankind in space. Today, three classic space-colony concepts.<p><b>Name:</b> Bernal sphere; Stanford torus; O'Neill cylinder<p><b>Named For:</b> …

Habitats

Is working at night bad for you?

How much does working in the small hours harm the mind and body? Claudia Hammond investigates the evidence.<p>In some jobs, working the night shift is unavoidable. There are hospitals to run, planes to fly and shops to keep open as we move towards a 24-hour society. With careful planning and a bit of …

Sleep

Brain 'node' causes deep sleep without sedative - Futurity

The activity of a "sleep node" in the mammalian brain appears to be both necessary and sufficient to produce deep sleep, say researchers.

Neuroscience

Texas Considers Textbooks That Contain Climate Change Denial

Texas Schoolbook Massacre<p>Oh Texas. All that juicy low-carbon windpower you're generating – and wiring into the grid – makes us love you.<p>But then you have to go and deny anthropogenic climate change. Such a turn-off.<p>Several news outlets -- including <i>The Guardian</i>, the <i>National Journal</i>, the <i>Huffington</i> …

Forget The Hyperloop: Larry Page Wants Google To Build A Super-Efficient Airport The Rest Of The World Can Copy

Larry Page's ambitions are huge and grow bigger every day.<p>Already, he has Google working on self-driving cars, artificial intelligence, robots, aging, and drones. At Google, they call these efforts moonshots.<p>The latest problem Page wants to solve: inefficient airports.<p>In an excellent report, The …

How to build global cities without so many cars - Futurity

A new report compares "business as usual" in transportation to a "high shift" scenario that would save money, lives, and carbon emissions around the …

Astronomy Photographer of the Year 2014 - in pictures

The Royal Observatory Greenwich has announced the winners of this year’s international astronomy photography competition. The observatory’s annual free exhibition, which opened on Thursday, showcases these dazzling images of the sky, ranging from within our solar system to far into deep space. …

A Coastal Paradise Confronts Its Watery Future

In the end it's the same as living on a fault line, or just living in general. You know you're going to die at some point.<p>Dan Reiter, 37, is a long-board surfer and contractor who used to live in Tampa, Fla. Then he discovered the surf breaks along a stretch of coast south of Cape Canaveral. "It's …