jerryab

47 Flips | 2 Magazines | 1 Following | @jerryab | Keep up with jerryab 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 “jerryab”

A single drop of seawater, magnified 25 times

Ever wonder what’s in seawater? This photograph shows a drop of seawater, magnified 25 times.<p>From thisiscolossal.com … “You know when you’re horsing …

Seawater

Teen Wonder: Taylor Wilson

"Kids sometimes have an advantage when it comes to invention. Their lack of experience can actually be a benefit."<p>Taylor Wilson never just got interested in things.<p>"He got obsessed," says his father, Kenneth. "Whatever he was involved in, he went at it nonstop. Even getting him to eat was a big …

Parasitic Amoeba Eats People Alive, Bite By Bite

These amoebae eat human cells while they are still alive, and then move on. Terrifying.<p>It used to be thought that the parasite <i>Entamoeba histolytica</i> killed human cells with toxins and only ate them once they were dead--and that during its meals, it would eat cells by engulfing them whole, like other …

Biology

World Science U

Whether you are a high school student, science major in college or a lifelong learner, World Science U is where you can explore the wonders of …

“There are as many atoms in a single molecule of your DNA as there are stars in a typical galaxy. The same is true for dogs, bears and every living thing. We are, each of us, a little universe.” — Cosmos: A Spacetime Odyssey; Episode 2

generalelectric: “ The composition of a water molecule explained in “Beyond the Microscope,” a GE science film from 1922. ”

Microscopes

Giles Fraser says scientists are replacing theologians. Some thoughts on that | Jon Butterworth

I enjoyed Giles Fraser's article 'Good luck, physicists, with those tricky "meaning of life" questions, and I appreciate the good wishes as he acknowledges the perceived transfer of intellectual leadership from theologians to physicists<p>This transition can of course only be for the best. And this …

The Bugs In Your Stomach Define You As Much–If Not More–Than Your Genes

“The three pounds of microbes [we carry] may be more important for some health conditions than every gene in our genome,” Knight says. We share 99.9% …

Biology

Where is the Milky Way?

A word about our home galaxy – the Milky Way – within the Local Group, and the Virgo Cluster and Supercluster.<p>We know where our galaxy is located – …

Massive Carl Sagan archive posted by Library of Congress

Nearly two years ago, the Library of Congress acquired some 800 boxes of books, letters, notes, videos, and other items that belonged to late American astronomer and author Carl Sagan. Now much that massive collection — which was donated by <i>Family Guy</i> creator Seth MacFarlane — can be found online as …

The Varieties of Scientific Experience: Carl Sagan on Science and Spirituality

I was recently on NPR’s Science Friday to discuss my favorite science books of the year and a listener called in, asking for a recommendation for a good book on science and religion — an excellent question, given the long history of this polarization, which occupied great minds from Galileo to …

How A Simple New Invention Seals A Gunshot Wound In 15 Seconds

An Oregon startup has developed a pocket-size device that uses tiny sponges to stop bleeding fast.<p>When a soldier is shot on the battlefield, the emergency treatment can seem as brutal as the injury itself. A medic must pack gauze directly into the wound cavity, sometimes as deep as 5 inches into …

U.S. Army

Visitations From the Men in Black

The mysterious Men in Black tend to offer little explanation for their appearance, leaving a trail of doubt and confusion in their path, and people …

Paranormal

Mysterious Ancient Indian Metal Works Surpass Modern Technology

What is amazing about the Iron Pillar of Delhi is that, in spite of being at least 1,500 years old and possibly much older, it is so impenetrable to …

Stop coddling your dog—he’s 99.9% wolf

SANTA CLARITA, California—Cesar Millan crosses the road to meet me. Two pit bulls, a Chihuahua, and a Yorkshire terrier—named Junior, Taco, Alfie and Kaley Cuoko—follow. Off leash and at heel, the dogs are calm, almost languid. If Millan communicates with them, I do not notice.<p>For the past few …

Dogs

10 Ancient Archaeological Sites for Your World Travel Bucket List

Shares 7K<p>Typically, when ancient archaeological sites get some form of development, it’s a benefit.<p>With development comes better controlled access …

The Top 8 Robot Stories Of 2013

By Morgan Clendaniel2 minute Read<p>Robots are coming. This much is certain. The robots we have now are just the first tiny soldiers in an army of …

Robotics

Hear the sound of the Earth moving from the deepest hole on the planet

For billions of years, the Earth has silently traveled through space, spinning around the sun without making a sound. Even here on the planet, there's been little to hear. But now with the right recording equipment and processing, we can get a sense of what it sounds like for the planet to spin and …

The Professor in Russia - Periodic Table of Videos

Newton's Universal Law of Gravitation

How Isaac Newton's encounter with that apple ended up helping send rockets into space<p>Newton's equation first appeared in the <i>Philosophiæ Naturalis Principia Mathematica</i>, July 1687. It describes why that apple fell from that tree in that orchard in Lincolnshire. Whether or not that apple actually …

The smooth motion of rotating circles can be used to build up any repeating curve even one as angular as a digital square wave

The <b>smooth motion of rotating circles</b> can be used to build up <b>any repeating curve</b> even one as angular as a <b>digital square wave</b>. Each circle spins at a multiple of a <b>fundamental frequency</b>, and a method called <b>Fourier analysis</b> shows how to pick the radiuses of the circles to make the picture work. <b>Decomposing signals</b> like this lies at the heart of a lot of <b>signal processing</b>. [more] [code]

Build an atom, complete with protons, neutrons and all requisite orbitals and electron spins. A pretty little look at the idealized, not-to-scale world of the elements. Great for a chemistry or physics reference anyway. That’s helium, carbon, iron and livermorium for those of you keeping track at home. Interested in a diagram of an atom that’s more to scale? Get yourself an 11-mile wide computer monitor and head over to this site. EDIT: An earlier version of this post said hydrogen instead of helium, because I’m a dummy and I was in a hurry.

<b>Build an atom</b>, complete with protons, neutrons and all requisite orbitals and electron spins. A pretty little look at the idealized, not-to-scale …

Learn The History Of Physics In 4 Minutes

Aristotle was wrong. He claimed that heavier items fell faster than lighter items. Had he actually tested the theory, using a high-tech tool as sophisticated as a ladder, a ledge, or a cliff, he’d have immediately realized that it couldn’t possibly be true. Because Galileo did test the theory, and …

History of Science

Jeri Rebecca Hill

Cell Nucleus

Squeeze The Bacteria Out Of Water With A New Gel

In an emergency, clean drinking water can be tough to find. Floods, earthquakes and hurricanes can make our usual sources of water potentially unsafe.<p>After the 2004 tsunami in the Indian Ocean left many without access to clean water, researchers from Nanyang Technological University in Singapore …

Forget Tweeting, Meet The Birds Who Blog

A project launched today by researchers in Aberdeen and the RSPB will see a group of Scottish birds writing their own blogs.<p>Readers will be able to track the daily lives of red kites as they travel around the Scottish Highlands by visiting a website set up as part of efforts to ensure the species …

How To Build Your Own DIY Centrifuge

Get a lab-grade centrifuge (normally $2,000) for 50 bucks.<p>For any garage-ista ready to tackle molecular biology, the centrifuge is an essential laboratory tool. Its super-rapid spin supplies the right G-forces to neatly separate biological materials—including cells, proteins, and DNA—from a liquid. …

N. America's Oldest Known Petroglyphs Discovered In Nevada

Ancient North Americans gouged elaborate rock art into a heap of big boulders northeast of Reno, Nev., more than 10,000 years ago and perhaps 15,000 years ago. That makes the carvings the oldest known petroglyphs on the continent, according to a paper published in the <i>Journal of Archaeological</i> …