Scott Macholan

26 Flips | 1 Magazine | 4 Likes | 2 Following | @smacholan | Keep up with Scott Macholan on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Scott Macholan”

Do Insects Sleep?

Welcome to the third and final installment of my sleep series, in which I explore whether the organisms I talk about most on Our Modern Plagues sleep. I’ve already covered plants and microbes (which don’t actually sleep, but do have fascinating circadian behaviors). Next up: insects.<p>So, do insects …

Dwarf planet discovery hints at a hidden Super Earth in solar system

Astronomers have increased the size of the observable solar system after spotting a 450-km wide object orbiting the sun.<p>The lump of ice and rock circles the sun at a greater distance than any known object, and never gets closer than 12bn kilometres – 80 times the distance from Earth to the sun.<p>If …

Crows' reasoning ability rivals that of seven-year-old humans

New Caledonian crows are as good at reasoning as a human seven-year-old, claim researchers.<p>The scientists subjected six wild crows to a battery of tests designed to challenge their understanding of causal relationships. The "water displacement" tasks were all variations of an Aesop's fable in which …

Asteroid-Capture Mission Will Bring Mars Within Reach, NASA Chief Says

NASA's wild plan to capture an asteroid and park it near the moon is only one step on the way to Mars, NASA chief Charles Bolden said Wednesday …

Most Human Beings Are Lactose Intolerant: Here’s Why

I'm in!<p>Lactose intolerance is when the body does not produce enough lactase to break down lactose, a sugar found in milk and many other milk derived …

App could help people shape their dreams, claims psychologist

A mobile phone app that plays quiet soundscapes while people sleep could make their dreams more pleasing, a British psychologist claims.<p>A study of 800 people found that those who listened to sounds of nature shortly before they woke had more positive dreams than those who listened to sounds of the …

Right place, right time: how expert cricketers keep their eye on the ball

We're heading into the final stages of the Ashes, and England are going for a historic 4-0 win over Australia. In high-pressure sports situations like this, we're often told to concentrate and "keep our eye on the ball". But while it sounds like great advice, research into eye movements might …

An Explanation Of DNA, Straight From A 1970s Science Book

When our science class videos were replaced by Science Channel programming, we gained a lot of 3-D animations and really big explosions, but we lost a bit of that old-school charm–the simple illustrations of all those concepts we couldn’t see.<p>So for BBC Knowledge, London-based studio Territory dug …

Textbooks

Not dead yet: junk DNA is back

A controversy at last: most of our DNA is junk, no it isn’t, yes it is. Actually, I think it is – up to 90% really is junk.<p>Last year The Conversation …

Genetics

DNA origami: The shape of things to come

<i>By Tia Ghose</i><i><br>LiveScience</i><p>Scientists have bent DNA into bizarre, basket-woven shapes, from spheres to corkscrews.<p>The new DNA origami, described Thursday in the journal Science, is one of the first steps in designing tiny nano-robots that could carry medicines or repair cells in the body.<p>"These are …

Normal brain activity linked to DNA damage

<i>By Charles Choi</i><i><br>LiveScience</i><p>Brain activity from experiences as common as exploring new locations surprisingly damages the noggin's DNA, hinting that such disruptions may be a key part of thinking, learning and memory, researchers say.<p>This damage normally heals rapidly, but abnormal proteins seen in …

New DNA-Based Transistor Brings Us One Step Closer to True Human Computers

The increasingly ambiguous divide between man and machine just got blurred that much more with Stanford's recent announcement: scientists have …

DNA test backs man, but charge haunts him

Prosecutors rejected a man's request for a trial on felony drug charges, but won't permanently drop the case.<p>LOUISVILLE, Ky. -- Suppose you were so sure you were innocent of a crime that you demanded a trial -- but the prosecution wouldn't give you one.<p>Suppose you presented DNA evidence suggesting …

This invisibility cloak is thinner than anything in Harry Potter's closet

If you liked last year's bulky invisibility cloaks, you'll love this year's fashionable ultra-thin invisibility wrap — which is just a tenth of a millimeter thick but can still make the objects inside undetectable to microwave scans.<p>"This is the first time an ultra-thin cloak has been realized, …

The westward shift of Orion and all the stars, plus a word about Comet PANSTARRS, here: http://bit.ly/13qAbNZ

Who Has the Right to Mine an Asteroid?

As PopMech has relentlessly covered, the race is on to tap the mineral wealth tucked away in the asteroids. But are these big space rocks free for the taking, or will asteroid miners find themselves bogged down in outer space red tape? Instapundit blogger and resident contrarian Glenn Harlan …

A team of astronomers is reporting the discovery of a new type of supernova called Type Iax. Here's the story: http://bit.ly/15QEii2

This shark has two heads! Which makes it the first shark to have more heads than sharks usually do. http://www.popsci.com/science/article/2013-03/shark-has-two-heads?src=SOC&dom=fb

In The Same Cataclysm That Gave The Moon Its Craters, Lots Of Asteroids Suffered Too

During the Late Heavy Bombardment, not even space rocks were safe. This is good news for historians of the solar system.<p>About 4 billion years ago, something caused Jupiter and the other gas giant planets to shift in their orbits, shoving countless space rocks out of their positions in the asteroid …

This Is Now The World's Lightest Material

This one's made of carbon, and it's super absorbent, too!<p>Check out this contender for the title of "world's lightest solid." To demonstrate just how light it is, Zhejiang University in China, where the material's creators are based, has published pictures of chunks of it perched on small leaves, …