jvanderdoes

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What keeps stone arches from falling down?

People often wonder how delicate arches and finely balanced pillars of stone stand up to the stress of holding up their own immense weight. Actually, …

Dam Fun Facts About Beavers

White holes: Hunting the other side of a black hole

PHYSICS is full of opposites. For every action, there’s a reaction; every positive charge has a negative; every magnetic north pole has a south pole. …

The Fastest Way To Crack A 4-Digit PIN Number [Infographic]

Good ol' 1234 accounts for about 10 percent of passwords. That's more than the bottom 4,200 combinations put together.<p>We know people default to bad passwords, whether for their computers or banking PINs. But, we have to stress this here, people are <i>really</i> bad at picking passwords. This infographic …

The World's Tallest Skyscrapers Have A Dirty Little Secret

The Burj Khalifa in Dubai and the Bank of America tower in New York count among the worst offenders<p>Supertall skyscrapers aren't necessarily built to fit as many people inside as possible--sometimes they're just aiming to be, well, really tall. Large portions of these buildings are designed to …

Why do we laugh?

Our picks of the week from around the web, including how to flawlessly predict anything, the function of laughter and the man who saved the dinosaurs.<p>Superintelligence<br>Caspar Henderson | Guardian | 17 July 2014<br>Discussion of new books by philosopher Nick Bostrom and natural scientist James Lovelock. …

Artificial Intelligence

5 Living Things That Make Their Own Sunblock

We're at that point in the summer where heaven forbid you forget your sunscreen and come home looking like something on the menu at the Lobster Shanty. But some lucky animals and plants don't need sunblock: they manufacture their own right inside their bo<p>We're at that point in the summer where this …

Great moments in science (if Twitter had existed)

A lot of news these days comes from, or is about, Twitter. Entertainment magazines and shows seem to be entirely dependant on celebrity Tweets, like those fish that feed on the random things that fall out of a sharks mouth.<p>It's not all random utterances and spats though. Time magazine recently ran …

What exactly is twilight?

Sure, twilight is that magical time of day that lies between daylight and darkness. Astronomers, the experts on nighttime, recognize 3 twilights.<p>You …

The Science of Lightning

A view into some of the rarer types of lightning<p>When it comes to thunderheads, lightning is the great equalizer. Essentially a giant spark, lightning relieves the charge differentials that build up in storm systems. But it’s also one of the greatest mysteries in atmospheric science. Recently, …

Siblings

9 Ways To Get The Most Out Of Your Sleep

<i>By Men's Journal</i><p>Whether it's learning when to drink coffee, getting more sun or eating smaller meals, these nine tricks will help you make your sleep more efficient, effective and work harder for you during the daylight hours.<p><b>Have A Daily Bedtime</b><p>Pick a time to go to bed you can stick with on a …

Love or lust? The eyes tell all

Where someone’s gaze falls could indicate almost instantly whether attraction is based on feelings of love or of lust.<p>Scientists say if the gaze is …

The World's Oldest Animal Is Even Older Than We Thought

A new dating method puts a mollusk specimen at 507 years young<p>Here you see Ming, a mollusk of the species <i>Arctica islandica</i>. In 2006, researchers discovered the bivalve in Iceland, and examined its interior growth rings--patterns on the inside of its shell--to determine its age. That put Ming at an …

Clams

Black Holes May Explode Into 'White Holes' And Pour All Their Matter Into Space, Physicists Say

Black holes might end their lives by transforming into their exact opposite — 'white holes' that explosively pour all the material they ever swallowed into space, say two physicists. The suggestion, based on a speculative quantum theory of gravity, could solve a long-standing conundrum about …

FYI: Do I Really Need My Pinky Toe?

And without it, could I do everything a five-toed human does?<p>Walking, running and skipping with just four toes may be easier than you think.<p>"If you're born without a pinky toe or have an accident and it's removed, you can completely do everything you wanted to do," Dr. Anne Holly Johnson, …

25 Business Books that You Won't See on Most Bookshelves

<i>Gregory Ciotti is the marketing director at Help Scout.This post originally appeared on the Help Scout blog.</i><p>Read to lead, right?<p>There are few better “hacks” in life than reading—distilled knowledge that often took years to assemble can be consumed in just a few hours.<p>The problem is that many …

The Neurochemistry of Positive Conversations

Why do negative comments and conversations stick with us so much longer than positive ones?<p>A critique from a boss, a disagreement with a colleague, a fight with a friend – the sting from any of these can make you forget a month’s worth of praise or accord. If you’ve been called lazy, careless, or a …

In Pictures: The spectacle of the 'Supermoon'

The term "supermoon" is one borrowed from astrology. Scientists would prefer to call the phenomenon a perigee moon, or perigee-syzygy of the Earth-moon-sun system. In lay terms, it's when a full moon coincides with its closest approach to Earth. There was one this weekend, which caught the …

Do We Choose Our Friends Because They Share Our Genes?

People often talk about how their friends feel like family. Well, there's some new research out that suggests there's more to that than just a feeling. People appear to be more like their friends genetically than they are to strangers, the research found.<p>"The striking thing here is that friends are …

5 Awesome "Graffitrees": Graffiti with Actual Trees

Afro Taino by Gabriel Abreu in San Cristobal, Dominican Republic<p>Great graffiti happens when the artists don't get stumped. Instead, they go out on a …

9 Things Rich People Do Differently Every Day

This story originally appeared on Business Insider<p>What you do today matters. In fact, your daily habits may be a major determinant of your wealth.<p>"The metaphor I like is the avalanche," says Thomas Corley, the author of "Rich Habits: The Daily Success Habits Of Wealthy Individuals." "These habits …

Self-improvement

Night & Day

Project info<p>"Night & Day" is an ongoing series which captures the transition from day to night in various locations around the world. The photos are composed of numerous exposures shot at the same location over the course of the day, or sometimes over several days. The multiple day, dusk, and night …

Photography

The complete guide to working out before work

Life inevitably gets in the way of your gym date. That’s why people who exercise in the morning are more likely to stick with it, Barbara Brehm, a professor of exercise and sport studies at Smith College in Massachusetts and author of the recently released textbook, <i>Psychology of Health and Fitness</i>, …

Workouts

8 Signs You're Doing This Texting and Dating Thing Right

Today is your lucky day. You just scored the digits of your second hottest prospect on OKCupid and you're ready to start scheduling actual dates.<p>But …

3 Reasons Why A Great Date Does A Vanishing Act

When Elana met Mike, his good looks took her breath away.<p>He looked so handsome in his black pants, white shirt and sport coat. She couldn't believe how nice he had dressed for a date with her. She loved that he so wanted to impress her.<p>A mutual friend had introduced them so she felt comfortable …

Relationships

Exactly How Many Dates, Relationships, and Heartbreaks You'll Have Before You Meet The One

It takes a lot of effort to get to the point where you can frolic in a meadow with the love of your life.<p>That is, if you're the average woman. (And, of course, I would never call any of our amazing readers "average.")<p>But so you know what median numbers you might expect, here's the rundown on …

The 5 Dating Myths That Are Keeping You From Finding Love

<b>Myth 1. The love of your life has to be your best friend.</b><p>Let's get this straight right now. A man is not going to be your best friend. If he's emotionally healthy, he is happy to be your greatest protector and he will willingly fix anything for you when he can. But he's not going to get involved in …

Relationships