Rubens Alcaraz

63 Added | 8 Magazines | 3 Followers | @RubensAlcaraz | Keep up with Rubens Alcaraz 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 “Rubens Alcaraz”

Does dark matter cause mass extinctions?

As we journey around the galaxy, our solar system might regularly interact with dark matter, which might dislodge Oort cloud comets and boost heat in …

Why Your Future Vaccination Might Not Be A Shot

Vaccines don't always make it into the people who need them the most. Many require a syringe and a needle to enter the bloodstream and create immunity. And that means a doctor or nurse has to do the job.<p>But with if a vaccine could be delivered by simply applying a patch?That's Mark Prausnitz's …

Public Health

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

Best and worst foods to eat when you’re sick

When you're under the weather the last thing you want is to eat something that makes you feel worse. But what if the last thing you want is chicken soup or crackers, and you're craving ice cream or a glass of wine? It depends on what's wrong with you, experts say. Here are common symptoms and …

Alternative Medicine

15 Epic Photos of Buildings You'll Never Be Allowed to Enter

Ruin porn, the more benign cousin of slum tourism, often is slammed for opportunistically making art out of decay and disaster.<p>But for every …

9 Eating Habits That Are Derailing Your Weight-Loss Efforts

<b>Exercising Sans Carbs</b><br>Low-carb foods might help some women shed a few pounds—but they'll backfire if you're kicking it in the gym. "High-intensity exercise requires carbohydrate fuel, and high-intensity training is what sculpts your body," says dietician Susan M. Kleiner, R.D., Ph.D., a scientific …

Stunning images taken on Nasa Cassini spacecraft's mission to Saturn - Telegraph

Coming In 2015: The First Spacecraft Encounter With Pluto

What's on the horizon for the New Horizons spacecraft<p>On Saturday, NASA’s New Horizons spacecraft awoke from a very long slumber. The space probe – which has been traveling for nearly nine years and has traversed 3 billion miles of space – has spent much of its life in “hibernation” in order to …

The 15 Grossest Things You Might Be Eating

<b>Flame Retardant-Laced Soda<br>What it is:</b> The toxic flame retardant chemical brominated vegetable oil (BVO) was initially used to keep plastics from catching on fire.<p><b>Where it is:</b> For decades, the food industry has been adding it to certain sodas, juices, and sports drinks. BVO's purpose? To keep the …

6 Reasons Women Should Strength Train Like Men

<b>Your confidence will get a kick</b><br>No wonder guys who train strut around showing off their muscles. The physical benefits of weight training appear within weeks of starting a program. You'll notice that your shape is toned and tighter, and that fires up your self-esteem, says Cosgrove.<p><b>You'll boost your</b> …

21 Ways To Flatten Your Belly

<b>1. Exercise with Friends</b><br>Instead of catching up with friends over food and drinks, suggest a reunion on the move—you're likely to work out 104 percent harder if you have an exercise buddy. Suggest a weekly walk-and-talk session, form a friendly fitness club, or take advantage of gym specials …

What's the Most Badass Exercise You Can Do?

In the study, researchers enlisted ROTC cadets for something called the Wingate Anaerobic Power Test: a 30-second sprint with four minutes of rest in between for four rounds. Some cadets performed 30 seconds of sprinting on a stationary bike while the others did 30 seconds of burpees as quickly as …

Kill It in Your Cocktail Dress with This Arm Workout

Exercise 1 Close Hands Pushup (Superset #1)<p>Begin at the top of a pushup position with your hands placed directly under your shoulders. Keep your feet together and your midsection contracted and braced <b>(A)</b>. Maintain a long body from head to toe, and lower down by bending your elbows until your torso …

Sleep Deprivation Is Killing You and Your Career

The next time you tell yourself that you’ll sleep when you’re dead, realize that you’re making a decision that can make that day come much sooner. Pushing late into the night is a health and productivity killer.<p>According to the Division of Sleep Medicine at the Harvard Medical School, the …

The 10 Biggest Fitness Myths

Chances are some bogus training advice has wormed its way into your fitness regimen. Time to root it out. Here are the ten performance myths holding you back, from pre-race stretching to the evils of high-fructose corn syrup. Plus: Three truisms that are still up for debate.<p>Myth #1: Stretching …

Exercise

Scientists hail the most 'advanced anti-ageing serum' in the world

New research suggests skincare tailored to individuals' DNA may be the best way to combat the appearance of ageing<p>Those who believe that beauty is only skin deep may need to think again.<p>A most advanced anti-ageing serum ever created is going far deeper in the pursuit of the ultimate skincare …

The Secret to Dropping More than 30 Pounds Fast

It's no secret that muscle is more metabolically active than fat, so by having more lean muscle on your skeleton, you'll burn more calories even at rest. Fortunately, Darden says he discovered a super-efficient way to build muscle while losing weight: It's called "negative training," and Darden …

12 Scary Facts Your Skin Can Reveal About Your Health

<b>Yellow Eyes</b><br>Eyes that turn a shade of yellow may be due to a condition known as scleral icterus, which could possibly indicate that your liver isn't functioning properly, says dermatologist Soheil Simzar, M.D.<p><b>Eye Bags and Puffiness</b><br>High-sodium foods and a diet rich in salt can promote water retention …

12 Reasons You Should Start Lifting Weights Today

<b>You'll Lose 40 Percent More Fat</b><br>If you think cardio is the key to blasting belly fat, keep reading: When Penn State researchers put dieters into three groups—no exercise, aerobic exercise only, or aerobic exercise and weight training—they all lost around 21 pounds, but the lifters shed six more …

The 100 Greatest Innovations Of The Year

Popular Science's Best Of What's New Awards, all in one place<p>Each year, <i>Popular Science</i> picks the 100 greatest new innovations in technology to feature in our Best Of What's New issue. Discover the most exciting developments in consumer gadgets, sustainability, medicine, automobiles and more.<p>Follow …

How to make old homes energy efficient

Green deal is inappropriate for Britain’s 5m historic homes, so what’s the best way to stop them leaking energy? John Vidal gets expert advice for his Grade II listed home<p>Thirty five years ago I bought a row of 350-year-old Welsh half-timbered industrial workers’ cottages. Good move, except for the …

The Exercise That Will Make You a Better Runner

Because your hamstrings create forward movement, you use them during every part of your running stride, says researcher Oyvind Heiberg Sundby. When you have strong legs, you'll push off the ground with more force, wasting less effort and running more smoothly and efficiently. “In a well-oiled …

Does Russia Think Their New Nuclear Weapons Could Win A War?

A new round of Russian nuclear weapons development, their new aggressive posture and their new spurning of joint nuclear programs with the United States, all point to a disconcerting trend in Russian thinking amid a growing confidence in the nation’s military capabilities.<p>Americans have short …

Why It's Always a Bad Idea to Drive When Drowsy

<b>An Accelerating Danger</b><br>The stats on heavy-eyed driving are staggering: According to the National Sleep Foundation (NSF), 60 percent of adult drivers—that's around 168 million people—admit to taking the wheel when tired; a full one-third cop to actually nodding off. As a result, some 1,500 Americans …

4 New Ways to Add Resistance to Your Workout

Below, Spurling suggests a few ways—demo'd in recordings made by the director of training at his gym—that a weight plate can amp up your strength-training session. Aim to do each exercise for 10 reps, then rest one to two minutes before going again. "Four to six rounds should be plenty for most …

Google-Backed Virtual Reality Startup Jaunt Rolls Out Its First Piece Of Content

There’s been no shortage of big tech players dipping their toes into virtual reality these days. But so far, there hasn’t been much for consumers to actually get their hands on.<p>Today VR startup Jaunt is coming out with its first piece content in the form of a Paul McCartney concert. Available as a …

Birth Mystery of Stellar Snow Globe Deepens

Astronomers thought they'd figured out where giant clusters of old stars come from. Hubble images have sent them back to the drawing board.<p>The Hubble Space Telescope's recent images of giant balls of stars in a nearby galaxy, reported on Thursday, have astronomers puzzled as to the star balls' …

How Supercomputing Is Cracking The Mysteries Of Human Origins

The power of petaflops penetrates the mists of time<p>A Texas supercomputer capable of 9.6 quadrillion operations per second has solved a thorny problem in genetics, by looking at the bones of a young boy who died 24,000 years ago in Mal’ta in south-central Siberia.<p>Existing genetic models have …