viviana lyall

11 Flips | 2 Magazines | 39 Likes | @vivianaperez | Keep up with viviana lyall 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 “viviana lyall”

Perseid fireballs are already arriving!

NASA says the annual Perseid meteor shower produces more fireballs than any other. Although the shower’s peak is still some days away, the fireballs …

New Whipray Species Discovered in Indo-Pacific

A new species of ocellated whipray has been identified by its DNA. Researchers from the IRD (Institut de recherche pour le developpement) announced …

Learn Japanese Calligraphy From A Robot

Technology could preserve the waning skill.<p>As smartphones and computers become more prevalent in people's daily lives, many in Japan fear that the ancient art of shodo, Japanese brush writing, will die out. In a 2012 survey by Japan's Ministry of Education, more than 60 percent of respondents said …

Costa Rica pushes to close public zoos, return some caged animals to the wild

Costa Rica's two public zoos may be closing next year as officials attempt to build a new, cage-free environment. Environment Minister Rene Castro says that due to "a change of environmental conscience" in Costa Rica, the Simon Bolivar Zoo will become a botanical garden with no captive animals. …

In pictures: Inside the heart

The British Heart Foundation (BHF) has announced the winners of its "Reflections of Research" competition.

What is an Analemma?

<i>What is an Analemma?</i><p><i>An analemma is the figure “8″ loop that results when one observes the position of the sun at the same time during the day over the course of a year. Due to the earth’s tilt about its axis (23.45°) and its elliptical orbit about the sun, the location of the sun is not constant from day to day when observed at the same time on each day over the course of a full year. Furthermore, this loop will be inclined at different angles depending on one’s geographical latitude.</i>

Eyes and Nebulas

Behold the Gastric Rainbow. Sounds gross, but it’s actually beautiful. This cross-section of a mouse stomach is labeled with a spectrum of fluorescent molecules. From the green and magenta digestive enzyme-producing cells to the red mucus-secreting cells, this is one of the most dynamic areas in the mammalian body: Each cell is replaced by another every 3-5 days. (via The Scientist Magazine)

Behold the <b>Gastric Rainbow</b>. Sounds gross, but it’s actually beautiful. This cross-section of a mouse stomach is labeled with a spectrum of fluorescent …

Loges musculaires, aponévroses, vaisseux et nerfs du cou et de l’aisselle