Mary Lee Hahn

22 Added | 2 Magazines | 1 Following | @MLHahn | Keep up with Mary Lee Hahn 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 “Mary Lee Hahn”

Astronomy Picture of the Day (APOD)

FYI: Could A Human Beat A T. Rex In Arm Wrestling?

A paleontologist examines the evidence.<p>"First, we're assuming that the T. rex won't just eat the person, right?" asks Jack Conrad, a vertebrate paleontologist at the American Museum of Natural History in New York. Right. This is a sanctioned match, and killing your opponent is strictly against the …

Bottlenose dolphins use names to identify companions

Bottlenose dolphins have distinct "names" that they use to identify individuals in their social group, according to a study by scientists who …

Will we ever... create a black hole in the laboratory?

Fears that the Large Hadron Collider could create a black hole that destroy the world may be unfounded, but if we really wanted to make one, could we actually do it, asks Matthew Francis.<p>Before the Large Hadron Collider (LHC) began operations in 2008, a small but noisy group of people were in …

Physics

Top 10 Composition Tips in Photography

Photography is all about composition. If you can’t compose an image, you can’t take photos. That’s the bottom line. This is where your photography …

Nasa's Hubble telescope discovers new Neptune moon

<b>The Hubble space telescope has discovered a new moon orbiting Neptune, Nasa has confirmed.</b><p>Designated S/2004 N 1, this is the 14th known moon to circle the giant planet.<p>It also appears to be the smallest moon in the Neptunian system, measuring just 20 km (12 miles) across, completing one revolution …

Astronomy

Videos, Teaching Strategies And Lesson Plans For Teachers

Teaching

Teach Yourself: Start A Project

I wrote this for High School Students, but it’s applicable to anyone. It’s an address to education and self-fulfillment.<p>More high school and college students should start projects. Projects are a means to bite-size, practical, and self-driven education. They help you navigate interests and learn …

Update on Arctic sea ice extent July 2013

By June 2013, Arctic sea ice had melted below the 1981-2010 average for this time of year. However, the rate of melt is nowhere near what we saw last …

A Submarine In Space And Other Amazing Images From This Week

Global threat to food supply as water wells dry up, warns top environment expert

Wells are drying up and underwater tables falling so fast in the Middle East and parts of India, China and the US that food supplies are seriously …

How We Make Stuff by Christiane Dorion | Book Review

What are rubber ducks really made of? Where do burgers come from? Does chocolate really grow on trees? How do we turn trees into paper? What's the …

Menopause And Memory Loss: Women Know What They Do Not Know

The need for health care varies greatly over a lifespan, with older adults having significantly more health-related needs and costs than younger individuals. Women, in particular, often face a myriad of health problems as they transition through menopause. Sadly, despite the fact that every woman …

Health Do: Drink a Cup of Water With Lemon as Soon as You Wake Up

Last week, Miranda Kerr talked about how she starts every day with a cup of warm water with lemon. And she's not the only one: Lauren Conrad is a fan, as is chef Sarah Britton, and rumor has it Jennifer Aniston is too.<p>Here's why...<p>Experts say that the simple act of sleep can pull water from your …

A beloved world leader goes on 'Oprah' and is totally clueless about the show's topic.

Painkiller increases chance of heart attack, health officials advise

Health officials have advised patients with heart problems to avoid an over-the-counter painkiller used by millions after research found that it can …

How to Use Google Plus

While Google Plus isn't quite in the same league as Facebook, it's growing fast—in May 2013, Time reported that Google Plus had approximately 190 million active members. Ready to sign up? Learning how to use Google Plus is easy, especially if you already have a Google account.<p><b>Adding Yourself to</b> …

America the Beautiful: 50 States in 50 Photos

At 3.79 million square miles (9.83 million km2) and approximately 315 million people, the United States is the third largest country by land area and …

What the Night Sky Would Look Like If the Other Planets Were as Close as the Moon

It's not always easy to imagine just how big the other planets are. Here, a space artist's thought experiment turns into a lesson in Earth's relative size.<p>Space artist Ron Miller has created a series of images that illustrate the sizes of the other planets in our solar system in a way that makes …

Watch 6 Wondrous Clouds Float Inside Museum Walls

Like a magician, Berndnaut Smilde conjures up miniature indoor clouds.<p>Anyone who has tried drawing or painting clouds knows that they’re incredibly difficult to reproduce in pictorial form. Well, that can’t actually be tougher than making them, right? In the last few years, artist Berndnaut Smilde …

Framing

Prehistoric Horse Genome Decoded, Pushing Back Origins Of Equine Lineage By 2 Million Years

The humble horse has provided the oldest full genome sequence of any species — from a specimen more than half a million years old, found frozen in the permafrost of the Canadian Arctic. The finding, published in Nature today, pushes back the known origins of the equine lineage by about 2 million …