What is Big Think?  

We are Big Idea Hunters…

We live in a time of information abundance, which far too many of us see as information overload. With the sum total of human knowledge, past and present, at our fingertips, we’re faced with a crisis of attention: which ideas should we engage with, and why? Big Think is an evolving roadmap to the best thinking on the planet — the ideas that can help you think flexibly and act decisively in a multivariate world.

A word about Big Ideas and Themes — The architecture of Big Think

Big ideas are lenses for envisioning the future. Every article and video on bigthink.com and on our learning platforms is based on an emerging “big idea” that is significant, widely relevant, and actionable. We’re sifting the noise for the questions and insights that have the power to change all of our lives, for decades to come. For example, reverse-engineering is a big idea in that the concept is increasingly useful across multiple disciplines, from education to nanotechnology.

Themes are the seven broad umbrellas under which we organize the hundreds of big ideas that populate Big Think. They include New World Order, Earth and Beyond, 21st Century Living, Going Mental, Extreme Biology, Power and Influence, and Inventing the Future.

Big Think Features:

12,000+ Expert Videos

1

Browse videos featuring experts across a wide range of disciplines, from personal health to business leadership to neuroscience.

Watch videos

World Renowned Bloggers

2

Big Think’s contributors offer expert analysis of the big ideas behind the news.

Go to blogs

Big Think Edge

3

Big Think’s Edge learning platform for career mentorship and professional development provides engaging and actionable courses delivered by the people who are shaping our future.

Find out more
Close

NASA Images from Etna and Kliuchevskoi (and more)

January 16, 2011, 11:22 AM
Ngaurahoe2009

Yes, a rare Sunday post, mostly because I'm not sure I'll have a time tomorrow morning for a post as it will be the first day of the new semester at Denison ~ I'm sure I will have students breaking down my door with questions/requests/demands and all the great stuff that comes with the start of the semester. Actually, the start of the semester isn't that bad, it does mean work will be picking up again, but at least you enter with a bunch of new students.

Today's post centers on two new images posted by the NASA Earth Observatory.

The first is from last week's eruption at Mt. Etna. The MODIS on Terra captured a shot of the white/light grey plume from Etna streaming off to the east. If you click on the main image to the larger image from the eruption, one thing that struck me is just how big Etna is relative to the island of Sicily - at least from what I can estimate from the discoloration around the snow-capped peak. I mean, it is no Mauna Loa in terms of relative size, but it is a large volcano. You can check out a great gallery of images from the eruption at Etnaweb and National Geographic also posted a gallery of images from the mid-week eruption. The latest from INGV Catania suggests that things are pretty calm at the crater pit, but you can always check out the webcam for yourself.

The other image comes from around the planet in the ever-active Kamchatka Peninsula. This ALI image from EO-1 shows the summit region of Kliuchevskoi (as known as Klyuchevskaya - Russian volcanoes tend to have multiple names it seems). You can see the weak steam-and-ash plume drifting off to the northwest along with a small lava flow on the eastern flank of the volcano. Again, clicking through to the larger image, you get stunning snow-covered image of the volcano plus its neighbors like Bezymianny with its breached crater to the south and Zimina directly south of Bezymianny, Tolbachik to the southwest with the flat, snow-filled caldera and finally Udina further south in the image. Just that image alone can give you an idea of the scale of volcano activity on the peninsula. There is a webcam for Kliuchevskoi (along with Bezymianny and Shiveluch), so you too can watch all the Russian action from home.

And some more non-satellite related news in brief:

That is it for now ... enjoy the rest of the weekend and I'll see you in the spring semester!

{Hat tip to all the links provided by Eruptions readers in this post.}

Top left: Ngauruhoe in New Zealand in a January 2009 image by Erik Klemetti. The younger, dark basaltic andesite lava flows are clearly seen on the volcano's slopes. Ngauruhoe last erupted in 1977. Click on image to see a larger version.

 

NASA Images from Etna and K...

Newsletter: Share: