Alexander Senetcky

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Bright flash of light marks incredible moment life begins when sperm meets egg

Human life begins in bright flash of light as a sperm meets an egg, scientists have shown for the first time, after capturing the astonishing ‘fireworks’ on film.<p>An explosion of tiny sparks erupts from the egg at the exact moment of conception.<p>Scientists had seen the phenomenon occur in other …

Eggs

Let This Solo Vagabond Remind You That ‘We Are Built To Explore’

This isn’t the normal “dude in a van” story. It’s about more than that. It’s about a guy who reclaimed his life. It’s about a guy who quit his job and set himself free.<p>A few years ago, Matt McDonald hopped into his van and drove across the western U.S., Alaska, and Canada. He didn’t go with a …

College student 3D prints his own braces

Amos Dudley wears his skills in his smile.<p>The digital design major has been straightening his top teeth for the past 16 weeks using clear braces he made himself.<p>"I'm still wearing the last one," Dudley told CNNMoney on Tuesday.<p>"The last one" refers to the twelfth and final straightening tray in his …

3D Printing

Landmark Study Identifies Key Brain Difference In Autism

Scientists linked differences in neurotransmitter activity to hypersensitivity in individuals with autism.<p>Neuroscientists at Harvard and MIT have identified, for the first time, a link between the activity of the neurotransmitter GABA and symptoms of autism -- a finding that may pave the way for …

Neuroscience

Ancient viruses are alive in humans and crucial for life, says Stanford University

The human genome is littered with sequences left behind from long-ago viral infections but now scientists have found the code is still active<p>Ancient viruses were critical to the evolution of humans and infections left genetic code in our bodies which is still essential for life today, Stanford …

Genetics

Is Sexism All in Your Brain?

A new study says the brains of misogynists are also super-dense in regions that control fear and anger. But there’s a twist.<p>Sexism is deeply …

Research

The Curious Case of the Children Whose Penises Don’t Appear Until Puberty

Guevedoces are born lacking an enzyme that converts testosterone into dihydrotestosterone, which causes them to look female. Meanwhile, their testicles are hidden inside their bodies.<p>Puberty is a difficult time for everyone. Some, however, have bigger issues than zits and embarrassing cracks in …

The Little-Known, Disfiguring Disease That’s Coming Our Way

I tell a story over on the news side of <i>National Geographic</i> today, about an intrepid team of explorers who plunged into nearly impenetrable Honduran rainforest in order to groundtruth the legend that it concealed a fabled “white city.” They succeeded (and you can read that story in the October issue …

Public Health

GM pig organs could soon be transplanted into humans

A major hurdle in transplanting pig organs into humans has been overcome by Harvard University scientists<p>Pig organs could soon be transplanted into patients after Harvard University scientists discovered a way to genetically modify pig DNA so it is more compatible with humans.<p>Scientists have spent …

Neurons dynamically switch identity in response to brain activity

The human brain is often said to be the most complex object in the known universe, and there’s good reason to believe that this old cliché is true. Even the apparently simple task of compiling a census of the different types of cells it contains has proven to be extremely difficult. Researchers …

Neuroscience

What’s in all that e-cig vapor?

Wander into a vape shop in the mall or online, and you can find a smorgasbord of flavors: cotton candy, vanilla custard, even Unicorn Milk or Katy Perry’s Cherry.<p>Flashy flavors have helped e-cigarettes, designed to vaporize a nicotine solution, grow into an industry with an estimated $3.5 billion …

Public Health

June 2015

Diversity

The Fallacy of 'Giving Up'

The importance of talking with a doctor about values and priorities in life—at any age<p>At 30 years old, a person's brain weighs about three pounds. In its capaciousness it wears the skull like a well-tailored suit. So notes Harvard professor and surgeon Atul Gawande in his most recent book <i>Being</i> …

Will 2015 be the year of meninism?

It started as a Twitter joke, but could meninism become a force for men's rights and positive masculinity, asks Martin Daubney<p>Could 2015 be the year when downtrodden men finally grow a pair, rise up against the tyranny of modern feminism and cry, “I’m a meninist – and I demand equality!”<p>It’s enough …

Quantum physics just got less complicated | Kurzweil

Quantum physics says that particles can behave like waves, and vice versa. Researchers have now shown that this “wave-particle duality” is simply the …

Quantum Physics