An African Globe Lily Cell During Mitosis

November 27, 2013

From Tiny Cells, Mighty Organisms Grow

It’s hard to imagine that each of us–the millions of cells that make up our our bones, muscles, blood vessels, organs, and the rest of of our complex, living bodies–had such tiny, humble beginnings. But all...

The route of the 1858 transatlantic telegraph cable. Source: Frank Leslie's Illustrated Newspaper, August 21, 1858 (public domain).

November 20, 2013

Nov. 18, 1929: The Day the Cables Broke

Today, a veritable superhighway of data rushes below the surface of the frigid North Atlantic. Every second, thousands of gigabytes whiz back and forth between North America and Europe on one of dozens of telecommunication cables...

Image Courtesy: San Jose Library (Flickr CC)

November 8, 2013

Beyond the Digital Divide: Teaching Students Digital Literacy

You’ve probably heard the term “digital divide” used to describe the gap between people who have regular access to the internet and those who don’t.  In September, the Pew Internet and American Life Project published a...

Chinook salmon moving upstream. Credit: Dan Cook (USFWS)

October 11, 2013

The Return of the King (Salmon)

At this very moment, beneath the swiftly-flowing surface of the mighty Columbia River, an extraordinary event is taking place: hundreds of thousands of salmon are fighting their way against the current, doggedly inching hundreds of miles...

Cooperation can also be a driver of evolution.

October 1, 2013

Survival of the most cooperative?

In discussions of evolution, the phrase “survival of the fittest” is uttered so often that it would be easy to assume competition among organisms is the only driver of evolutionary change.  But in fact, cooperation among...

Boy with hoirseshoe crab

September 10, 2013

Video of the Week: How Horseshoe Crabs Help Prevent the Flu

In case you missed the drum beat of news reports, warnings from pediatricians, and signs at your local pharmacy: flu season is coming!  While getting a flu shot (or enduring the flu itself) is a far...


August 23, 2013

Heavy Rains Down Under Briefly Masked Sea-Level Rise

From late 2010 to early 2011 — the summer months in Australia — it poured. In fact, that season marked the midpoint of the wettest two-year period on record for the country; huge swaths of the...

On August 12, 1981, IBM introduced the first personal computer, the Model 5150.

August 12, 2013

Image of the Week: Looking Back at the First Personal Computer

Today marks 32 years since IBM introduced its first personal computer, the model 5150. Developed in just one year (a record for the company), the 5150 featured a glowing green screen, 5.25-inch floppy disk drives, and...

Sneak peak of the newly redsigned Visionlearning homepage

July 11, 2013

Sneak Peek: The New, Improved Visionlearning Site Launches Tomorrow!

It’s been a busy year behind the scenes at Visionlearning, where we’ve been working away at redesigning and upgrading the website. Now, the countdown is on, and new site will be live tomorrow! So, what will...

Credit: NASA

June 28, 2013

Image of the Week: Celebrating the Solstice with Solar Activity

  Last week, on June 20th, people across the Northern Hemisphere celebrated the summer solstice. In Anchorage, Alaska, they held a midnight festival and a marathon in honor of their 24 hours of sunlight. Bonfires burned...