It’s on one of those signs you see along the highway, or in a listing on a map or travel guide: "National Arboretum," "University Arboretum," or perhaps "State Arboretum."
This invites the question: what exactly is an "arboretum?"
Think of it as a “zoo for trees.” Yes, you read that correctly.
Explore the nature of hurricanes and lightning—two frequent and hazardous events in North Carolina.
Synthetic stem cells could help reverse heart failure
March 6, 2017
In many ways, the heart is like a tire. Its elastic walls handle immense pressure, and work tirelessly to keep the rest of the body moving. Like a tire, the walls of the heart can wear down over time, the elastic does not spring back as readily as it used to and the tire cannot hold up to the high pressure the way it did when it was new.
Silver nanowires could be key to printable electronics
March 3, 2017
Every smart phone, computer and electronic device relies on conducting circuits: loops of material that funnel electrons through a device. As electronics get more sophisticated, however, engineers are looking for new ways to make circuits that are more flexible and that can work on different surfaces.
NASA scientists discover seven potentially Earth-like planets
March 3, 2017
In the search for life beyond our solar system, the discovery of a planet theoretically capable of sustaining life is monumental. Scientists working with NASA’s Spitzer and Hubble telescopes have found seven of these rare planets orbiting a single star.
Thanks to scientific observations with telescopes, satellites and mathematical calculations, we not only understand what happens during a solar eclipse but we can also predict when they will occur and where they will be seen well into the future.
That hasn’t always been the case.
Take, for example, the origin of the word eclipse. It’s derived from the ancient Greek word ekleipsis, meaning "abandonment." You get the idea. The folks back then thought the Sun had just turned off. It had, in effect, abandoned the Earth.
Learn about protists—single-celled organisms that carry out the basic functions of life.