Gustavo Loubet Guimarães

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Why Does Gravity Wave, And Why Does It Matter?

LIGO announced today that they have detected gravitational waves from a black hole merger. If verified it will be the ultimate confirmation of Einstein’s theory of general relativity. But what are gravitational waves, and why is their detection such a big deal?<p>Water is perhaps the most common …

Physics

Why the Big Bang’s Light May Have a Tilt

Author: Maggie McKee. Maggie McKee Science<p>Date of Publication: 07.05.15.<p>Time of Publication: 6:05 am. 6:05 am<p>Half a century ago, astronomers got …

EXAME

<b>1. Mito ou realidade?</b> <i>zoom_out_map</i><p><b>1</b>/19 (thinkstock)<p>São Paulo – Quem nunca ouviu que usar o <b>celular</b> por muito tempo pode causar <b>câncer</b>? Ou que deixar o</b> …

What would you see in a black hole?

What would it be like to fly a spacecraft into a black hole? Marcus Woo investigates.<p>Something about a black hole just pulls you in. Sure, its gravity is so strong that not even light can elude its grasp. But, there's something else, something harder to pinpoint. Maybe it's a black hole's absolute …

Black Holes

Pictures of the Week 11.6.14

Admirar o céu estrelado do Alentejo lidera top das 10 melhores experiências em Portugal

"Ver [monumentos] megalíticos sob as estrelas" encabeça o top 10 das melhores experiências em Portugal, recentemente divulgado pelo reconhecido …

6 wearables that help regular people live with dangerous health conditions

Health concerns have, arguably, been the major force driving the recent explosion of wearable tech. Over the past couple of years, simple fitness …

The High Road to Building an Enterprise SaaS Company

<i>Yoav Leitersdorf and Ofer Schreiber of are partners at</i> <i>YL Ventures.</i><p>Developing an enterprise-grade SaaS product is not easy. The keys are maintaining capital efficiency, launching early versions to the SMB market and constantly applying customer development methods.<p>B2B companies, often due to the …

Change Your Brain, Change Your Life

Our personalities, thought patterns and emotional responses are wired into our brains, says Richard Davidson, Ph.D., author of <i>The Emotional Life of Your Brain</i>, but you can change your brain. Here are several exercises that will help rewire the neural pathways to help you think more positively, …

The Brain

5 Comics You Should Read After Seeing X-Men: Days of Future Past

<i>X-Men: Days of Future Past</i> offered up more mutants than you ever could have imagined, yet you're hungry for more and unsure where to turn after the …

Best Photo Yet of an Exoplanet

Changing Planet<p>This artist’s impression shows what the planet inside the disk of Beta Pictoris may look like. Only 12 million years old, or less than three-thousandths of the age of the sun, Beta Pictoris is 75 percent more massive than our parent star. Credit: ESO/L. Calçada<p><b>While it may look like</b> …

From Clothespin To Mini Crossbow In Just A Few Steps

Who knew you could make so many different weapons with clothespins? Turns out, if you have three clothespins and some rubber bands lying around, you …

Skydiving meteorite: It was a rock.

<i>[UPDATE (Apr. 11, 2014 at 16:00 UTC): The following post contains some corrections that I have clarified in a follow-up article. Please read that</i> …

A tangle of stars in Berenices’ Hair

A faraway cluster of stars known the Coma star cluster requires a dark sky to be seen. It is in the constellation Coma Berenices – also known as …

Astronomy

Smart skin patch knows when you need your meds

Scientists developed a patch that could help patients receive drugs the minute they need them<p>A lot can go wrong when doctors prescribe drugs to patients. For one thing, there's always a chance that someone might forget to take their pill or refill their prescription. And then there's also the risk …

Design & Development News | The Next Web

All stories in Design & Dev<p>Google adds 'Theming' to Material Design to unify designs across applications<p>Google today announced several updates to Material Design, the company's visual design language and set of specifications for applications should look. While rumors persisted up to the event that …

The Story Behind Syracuse's Upside-Down Traffic Light

Unlike nearly every other traffic light in the U.S., the traffic light up on Tipperary Hill in Syracuse, New York displays green above red. Why this …

Tipperary

Orion Star Factory May Be Deadly to Planets

Changing Planet<p>Artist’s concept of two proplyds, or protostars, around a massive O-type star. The nearer proplyd is having its planet-forming dust and gas blasted away by the radiation from the star. The farther one retains its planet-making potential.<br>Credit: NRAO/AUI/NSF; B. Saxton<p><b>The Great Orion</b> …

What Is the Resolution of the Human Eye?

The new iPhone camera is 8-megapixels. Meanwhile, Canon is reportedly testing a new DSLR with 75-megapixels. But how many megapixels is the human …

Better Know a Plague: Measles, Mumps & Rubella

A couple of weeks ago, an interactive map compiled by the Council on Foreign Relations went viral online, although it first published in 2011. The map shows worldwide outbreaks of preventable diseases from 2008 to the present, including measles, mumps, and rubella.<p>Many news outlets that posted the …

Why Is Glass Transparent?

We all take for granted the fact that glass is transparent. But stop and think about it for a second: how can something so bulky and solid be so easy …

Busy isn’t respectable anymore.

Why busyness isn’t all it’s cracked up to be and a challenge to put it behind us. “The trouble with being in the rat race is that even if you win, …

Engineering Insider

The Next Big Thing You Missed: A Mobile OS That Doesn't Care What Phone It's On

Most people just use the operating system that comes with their smartphone. It's easier to simply take what you get from Apple or Nokia or Samsung. …

Newfound Monster Supernova Breaks Records

Changing Planet<p>A small portion of one of the fields from the Supernova Legacy Survey showing SNLS-06D4eu and its host galaxy (arrow). Superbright points of light with spikes are stars in the foreground. Credit: UCSB<p><b>A newly discovered exploding star may have broken two cosmic records, as it’s both</b> …

This t-shirt will tell your phone how healthy you are

Last month, Quartz wrote about Scanadu Scout, a nifty little device that can measure your vital signs—temperature, heart rate, blood pressure and more—simply through contact with your skin. The catch was that you have to hold it up your forehead to get a reading. Stephane Marceau, founder of the …

Personal Data

Is the Moon Man-Made?

Is the moon hollow? Was it man-made, with a thick layer of dust simply covering its metal frame over billions of years?<p>Of course, this supposes that …

The Woman Who Built the Lego Hogwarts Just Made a 200,000-Piece Rivendell

Alice Finch, best known as the woman who brought a more-or-less exact replica of Hogwarts to Emerald City Comicon in March, is back. This time, she …