chris stewart

34 Flips | 5 Magazines | 8 Following | 1 Follower | @docstu | Keep up with chris stewart 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 “chris stewart”

The 10 best treks in the world

These 10 classic treks are for serious walkers. All of them require a sturdy pair of lungs, fit legs and a good amount of preparation. However, if you choose to go on any of these trails then you will be rewarded with experiences that last a lifetime. In no particular order:<p>1. GR20, France<p><i>Image by</i> …

Hiking

Researcher finds way to calm fears during sleep

Fear may be the most powerful of all human emotions, but according to a study released today in the journal Nature Neuroscience, sleep can be its enemy.<p>In a first-of-its-kind experiment, specific emotional memories of human beings were deliberately altered during sleep. The complicated small study, …

The Brain

Smart Teenage Brains May Get Some Extra Learning Time

John Hewitt is a neuroscientist who studies the biology of intelligence. He's also a parent. Over the years, Hewitt has periodically drawn upon his scientific knowledge in making parenting decisions.<p>"I'm a father of four children myself and I never worried too much about the environments that I was …

National Parks of the USA - How many have you been to?

Work Life Balance: Saving Versus Savoring

If the world were merely seductive, that would be easy. If it were merely challenging, that would be no problem. But I arise in the morning, torn …

How 3-D Printing Body Parts Will Revolutionize Medicine

Welcome to the age of bioprinting, where the machines we've built are building bits and pieces of us.<p>A device the size of an espresso machine quietly whirs to life. The contraption isn't filled with fresh, pungent grounds but, instead, spoonfuls of opaque, sterile goo. Its robotic arm moves …

Why Not Just Dispose Of Nuclear Waste In The Sun?

We could do it, but should we?<p>After FYI answered why dumping the world's nuclear waste into a volcano would be a bad idea, our inbox was flooded with readers wondering, "Well, how about shooting it into the sun?"<p>On paper, this is a fantastic way to wipe our hands clean of all that pesky waste. The …

Panel Urges Lung Cancer Screening For Millions Of Americans

A federal task force is planning to recommend that millions of smokers and former smokers get a CT scan annually to look for early signs of lung cancer.<p>The 16-member US Preventive Services Task Force gives that lung cancer screening test a grade of B, which puts it on the same level as mammography …

The Canary: A self-contained security device controlled by smartphone

Currently in the prototype stage, Canary is a deceptively decorative cylinder about six inches (15.2 cm) tall. According to the developers, setting …

Scientists discover another cause of bee deaths, and it's really bad news

So what is with all the dying bees? Scientists have been trying to discover this for years. Meanwhile, bees keep dropping like... well, you know.<p>Is …

The Small, Often Imperceptible Reasons Some Neighborhoods Feel Safer Than Others

You're More Likely to Die a Violent Death in Rural America Than in a City

The Vitamin Myth: Why We Think We Need Supplements

Nutrition experts contend that all we need is what's typically found in a routine diet. Industry representatives, backed by a fascinating history, argue that foods don't contain enough, and we need supplements. Fortunately, many excellent studies have now resolved the issue.<p>On October 10, 2011, …

Why Ancient Earth Was So Warm

Greenhouse gases in the atmosphere kept the planet toasty, model shows.<p><b>Some three to four billion years ago, Earth was about as warm as it is today, but the sun was much dimmer.</b><p>This so-called faint young sun paradox, first identified by astronomer Carl Sagan in the early 1970s, has flummoxed many a …

New to nature no 109: Anochetus hohenbergiae

At any given moment, it is estimated that there are about 10,000 trillion living individual ants. Myrmecologists Bert Hölldobler and Edward O Wilson …

The 15 Greatest Masterpieces At The Louvre

The grand art museum houses 35,000 masterpieces, from prehistory to contemporary works. But with over 600,000 square feet of exhibition space, navigating the enormous museum can be overwhelming if you don't know what to look out for.<p>Christine Kuan, the chief curator at Artsy, selected 15 must-see …

7 indoor plants that purify the air around you naturally

1/14<p>7-Air-Purifying-Houseplants<p>Bringing potted plants into a living space to liven it up is a trick that's been used by interior designers for years, …

Scientists outsmart dangerous bacteria using infrared light

The pesky bacterium Staphylococcus aureus (S. aureus), best known for causing staph infections such as MRSA, ranges dramatically in form. In fact, recent studies indicate that S. aureus performs an efficient little microevolution to adapt to its host, so that it can evade the immune system and even …

Immune System

How To Turn A Match Into A Tiny Rocket [VIDEO]

Blast off!<p>The swift strike of a match on July 4 typically precedes sky-high spectacles. But matches themselves can be fireworks. When ignited, the bulb of fuel on a match's tip combusts into space-hogging gases. By containing the gas in aluminum foil and directing it downward, you can create a …

The quest is to clone a mammoth. The question is: should we do it?

The idea would make headlines around the world and bring tears of joy to the planet's journalists. An adorable baby woolly mammoth, tottering on its …

Humans May Evolve To Grow An Endless Supply Of Teeth

In the future, you--like the pufferfish--could have so many teeth that you'll wear necklaces made out of your spares. It'll be weird.<p>The pufferfish is a very curious animal for lots of reasons; it swallows air or water to make itself larger and more threatening, it combines its combining pectoral, …

How To Schedule Your Day For Peak Creative Performance

Are you a certified organizational ninja? It’s okay, nobody is–so steal this idea from career kickstarter Amber Rae, who shares her “Work, Play, Fit, Push” framework for getting things done while staying inspired.<p>About four years ago I started working for myself. I wanted the freedom and …

Creativity

Afghanistan in the 1950s and 60s

Fractured by internal conflict and foreign intervention for centuries, Afghanistan made several tentative steps toward modernization in the mid-20th century. In the 1950s and 1960s, some of the biggest strides were made toward a more liberal and westernized lifestyle, while trying to maintain a …

35 Random Corners Of The Internet You Should Visit When You Need A Break

Bookmark this for when you're having a bad day or when you just need a distraction and want to play. There's something so soothing about these single-serving sites.<p>Major h/t to this post by Tumblr user Writing Weasels and the website The Useless Web for providing me with endless hours of amusement.

What The Future Looked Like In 1900 -- 13 Fascinating Images

1 of 14<p>Crossing the sea and getting from one country to another has never been easier thanks to this railway and boat combination. Ferry your way …

roofed

How to Live in the Moment

Dessert

Your Weekend Has 60 Hours–Here’s How To Wring The Most Out Of Them

Do your weekends fly by too fast? Craft weekends that are memorable, relaxing, and productive with these 10 tips from productivity expert Laura Vanderkam.<p>Weekends always seem to go quickly, but they’re longer than we think. There are 60 hours between that 6 p.m. Friday beer and that 6 a.m. Monday …

Time Management

Oldest Writing Sample Found In Jerusalem Dates To Time Of King David, Stumps Archaeologists

Scratchings onto the lid of an ancient jug which may be the oldest writing sample ever unearthed in Jerusalem have left archaeologists in the region flummoxed.<p>Discovered in December 2012 in an area adjacent to the Western Wall, the 3,000-year-old inscription is described as an alphabetical text, …