Jb

33 Flips | 2 Magazines | 3 Likes | 2 Following | @Jb4b0pr | Keep up with Jb 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 “Jb”

Doctor In Gaza Invents 3D-Printable, Cost-Effective Stethoscope

The goal is self-sufficiency for Palestinian hospitals facing a supply shortage.<p>Eight years since a blockade was imposed on the Gaza Strip, hospitals in the Palestinian territory have faced shortages of basic medical supplies and international donors have not followed through on their pledges to …

Best New Tool: Dremel Idea Builder 3D Printer

The $1,000 3D printer you can buy at The Home Depot<p>3D printing has left the design studio and engineering lab and is headed directly for suburbia, which means people will be putting it to work in their basement or garages, right next to their miter saw. We're entering the home center era of 3D …

What Would Happen If You Drank Water From The Gowanus Canal?

The story of how one of the most polluted waterways in America came to be located in one of the country's most expensive neighborhoods. Also: dysentery, cancer, and arsenic poisoning.<p>"So, right off the bat, you'd have a massive problem with dysentery," Ludgen Balan, founder of the Urban Divers …

Get Much Smarter About Electricity in 231 Seconds

Couldn't tell a capacitor from an inductor? This video will teach you, very quickly.<p>Electricity! We know it when we see it (lightning bolts, the main weapon of Emperor Palpatine, et cetera), but how does it work? For many of us without an electrical engineering degree, it may be a mystery. Luckily, …

Electrical Engineering

Single-Celled Creature Has Eye Made of Domesticated Microbes

The oceans are full of eyes. Giant squid scan the depths with the world’s largest ones, which are oddly similar to those of the sperm whales that hunt them. Mantis shrimps watch for prey using eyes that work like satellites. Starfish stare through the tips of their arms, chitons look up through …

MIT Students Create A Brick That Could End Pollution From Dirty Brick Kilns

India’s brick industry, spread out over 100,000 kilns and producing up to 2 billion bricks a year, is a big source of pollution. To fire to hot temperatures, the kilns use huge amounts of coal and diesel, and the residue is horrendous: thick particulate matter, poor working conditions, and lots of …

How To Build A Flashlight That Runs On Dead Batteries

The dead shall shine again<p>Don’t throw out that seemingly lifeless battery—it’s not dead yet. A brand-new alkaline battery cell has an electric potential of about 1.5 volts, which drops as the juice runs out. The voltage eventually becomes too low to power most devices, but there’s still energy …

This Material Makes Water Move Upward Without Power

All you need is super-hydrophobic materials and a little moxie<p>Chinese researchers have created a tiny water pump that requires no power source. In other words, it can push water upward without adding energy, making for visuals like the video below that appear to defy gravity.<p>A copper mesh treated …

Solve All Your Extension Cord Woes With This Folding Rack

Never waste time untangling again<p>Is there anything worse than a tangled cable? No. No there isn't. And while your headphones might be doomed to tangle up in your pocket, your extension cords need not suffer a similar fate. Not when you build a marvelous folding extension cord rack.<p>Designed and …

Bamboo Mathematicians

In the late 1960s, a species of bamboo called <i>Phyllostachys bambusoides</i>–commonly known as the Chinese Mainland Bamboo or Japanese Timber Bamboo–burst into flower. The species originated in China, was introduced to Japan, and later into the United States and other countries. And when I say it …

Here's a Living Concrete That Repairs Itself

How bacteria can fix the cracks in your driveway<p>A Dutch inventor has come up with an ingenious way for concrete to repair its own cracks: It's alive.<p>Okay, Henk Jonkers hasn't created a new form of life. What he did find is a kind of bacteria that lies dormant until activated by water. Water is …

This Crazy-Strong Supermaterial Floats on Water

A new magnesium-foam composite can withstand high temperatures and intense pressures—all while staying light as a sponge<p>A new composite that blends titanium and foam has the durability of magnesium with the weight of a sponge. It can withstand forces of 25,000 pounds per square inch, and has a …

Engineering

Crater Wall Collapsing Into Lava Lake Creates A Beautiful Explosion [Gallery]

Kablooey<p>Last week, we showed you what happens when a rock falls into a lava lake. But that only raises the question, what happens when <i>more</i> rocks fall into a lava lake? Kilauea is here to sate your curiosity.<p>The Hawaiian volcano, whose lava flows disrupted the life of a town just a few months ago, …

Simple '4-7-8' breathing trick can induce sleep in 60 seconds

A deep breathing trick can make insomniacs drop off to sleep in under one minute, a health expert has claimed.<p>The method involves making a loud whooshing noise with the mouth then holding the breath in stages.<p>Called the ‘4-7-8’ method, it has been pioneered by the US sleep expert Dr Andrew Weil who …

Oculus Rift Will Officially Ship in Early 2016

VR is real<p>Oculus Rift, the heavily anticipated virtual reality headset, finally has a release-ish date: This morning the companyannounced its VR headset will finally be available to consumers in 2016.<p>What your seeing above is the first commercial model, rather than the developer kit headset that's …

An Artificial Reef For Any Seafloor

One of ten brilliant innovations from our 2015 Invention Awards<p>2015 Invention Award Winner<p>Category: Environment<p><b>Inventor:</b><p>Alex Goad<p><b>Company:</b><p>Reef Design Lab<p><b>Invention:</b><p>Modular Artificial Reef Structure<p><b>Development Cost To Date:</b><p>$11,500<p><b>Maturity:</b><p>4/5<p>During a 2011 trip to Miami, Alex Goad went scuba diving and …

Clickjackers: Inside The Strange New World Of Modern Spyware

If you were lucky or, in truth, unlucky enough to download a Chrome and Firefox extension from a site called WeLikeTheWeb.com in 2014 you’d be presented with not much more than a website recommendation engine that you’d probably ignore or uninstall. The app, on its surface, was innocuous. But, if …

Spyware

A 3D-Printed, Battery-Powered Rocket Engine

Space travel is going electric<p>Nothing demonstrates engineering prowess and technical knowhow quite like rocket science. There’s also nothing quite as expensive either. To launch even a lightweight rocket into space, the cost is easily upwards of $100 million--and that mostly has to do with the …

Space Exploration

Did A Giant Asteroid Impact Make Earth's Rock Crust Splash Like Water?

Next year, scientists will start drilling into the issue<p>Over 65 million years ago, when a 6-mile wide asteroid slammed into the earth with the force of a billion atomic bombs, it left a crater 110 miles wide.<p>The Chicxulub crater, just off the Yucatan Peninsula in Mexico, is best known for being the …

Physicists Figure Out Why Honey Falls In Twists

A delicious physics problem<p>A stream of honey falls onto a freshly baked buttermilk biscuit. Before you devour this breakfast treat, you might notice that the honey you poured formed a wavy pattern on the biscuit's surface, an unintentional decoration for your morning snack.<p>Most people might think …

You Could Eat Fast Food After A Workout To Build Muscle

No need for fancy supplements<p>Whether you’re training for a marathon or pumping iron like Arnold, intense physical activity depletes your muscles’ primary source of energy, glycogen. There’s a whole industry of post-workout supplements designed to help your muscles bounce back as quickly as …

Enhancing Corporeal Security By Listening In On Bacterial "Chatter"

Microbial signals can warn our bodies of a possible attack<p>Surveillance is one of the most effective ways to maintain overall public safety. By learning about the activities in the environment, one can assess the potential for threats to be realized as well as get a handle on any growing concerns. …

Solar-Powered Membrane Separates Water Into Hydrogen and Oxygen Without Exploding

Taking a leaf out of leaves' playbook<p>Hydrogen powered cars are slowly accelerating in popularity with boosts from infrastructure development and car manufacturers. But getting eco-friendly hydrogen is still a bit of a challenge. Right now, a lot of hydrogen is produced through mixing steam and …

Incredible New 3D Printing Technique Looks Like Sci-Fi

You've never seen a 3D printer like this<p>A new innovation by Carbon3D, unveiled Monday at the TED2015 conference, could finally move 3D printing out of the hobby shop and onto every factory floor.<p>Imagine you're in an emergency room with a blood vessel blockage. To save your life, a surgeon will …

Japan Has Started Beaming Energy Through the Air

It's the first step toward putting solar panels in space<p>Japanese scientists just beamed 1.8 kw of energy through the air over the course of 170 feet. Now, that amount of juice is barely enough to run an electric kettle, but it's an important step toward JAXA's (the Japanese space agency) big goal: …

Solar Panels

Biology Ideas That Billionaire Peter Thiel Thinks Are Worth Funding

Targeting "undruggable" proteins and putting stress sensors in watches<p>Investor Peter Thiel may be best known for founding PayPal and investing early in Facebook, but it seems he has a soft spot for biology too. Since 2011, the Thiel Foundation has funded biotechnology startups through an …

What 3-Parent Babies Mean For The Future Of Reproductive Medicine

Bespoke embryos raise ethical questions for lawmakers and bioethicists alike<p>Last week members of the British House of Commons passed a bill legalizing mitochondrial DNA transfers--a process that combines three different sets of DNA to create an embryo. That means one day, it could be possible for …

How To Make Speakers From Post-Its

Harnessing the power of sound using office supplies<p>On the ground floor of Pioneer Works Center for Arts and Innovation in Brooklyn, New York, a bearded and flanneled trio played gloomy arrhythmic music one Wednesday night. Upstairs, director of education David Sheinkopf taught a class on the …

Rare Earth

Thousands of undersea volcanoes revealed in new map of ocean floor

Scientists have created the highest resolution map yet of the ocean floor, revealing thousands of underwater mountains and extinct volcanoes that were previously unknown.<p>In a study published Thursday in Science, researchers say the new map is at least twice as accurate as the previous version …

Why Peter Thiel Doesn't Hire MBAs, Hates Suits, And Thinks Silicon Valley Can Be Awful For You

Peter Thiel — the billionaire cofounder of PayPal and early Facebook investor — took to Reddit on Thursday for an AMA as part of the run-up to the release of his new book "Zero To One," which will be available Tuesday.<p>The whole thread is worth the read, but we were intrigued by three targets of …