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


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

Watch videos

World Renowned Bloggers


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

Go to blogs

Big Think Edge


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

New images from the Redoubt Eruption

March 24, 2009, 8:03 AM

Image courtesy of AVO/USGS

AVO has posted a series of images taken around Redoubt and around the Cook Inlet since the new eruptions started the night of March 22nd. You can begin to see the extent of the ash fall, what the explosions have done to the Drift Glacier and the new deposits in the Drift River valley. Most of the images show a lot of meltwater mudflows and tephra deposits on the slopes of the volcano. They've also added images from satellite and radar sources that show the initial dispersal of ash from the eruptions throughout the area north of Redoubt.

Eruptions reader Akira Shirakawa has put together an excellent (and I mean excellent) video montage of images from the Hut camera (which, bizarrely, came back to like spontaneously yesterday), with a soundtrack of "converted digital seismic traces". It captures the sixth explosion that occurred yesterday (3/23) evening.

AVO's current Redoubt information reports that the seismicity is still the same as the last few days, suggesting magma is still on the move into the upper parts of the volcano. Ash advisories posted after yesterday evening's eruption has been canceled, so now we just wait and watch for more of these explosions that have been producing 50,000 foot / 15,000 meter ash columns and depositing fine ash around the region (typical activity for Redoubt). If these eruptions are similar to 1989-1990, we should expect some dome growth in the following weeks/months.

In some of the "day after" news, the brunt of the ash fall from yesterday's eruption hit the town of Skwentna (70 miles NW of Anchorage) and left Anchorage, Wasilla and other population centers virtually untouched - other than canceled flights. You can see some of the regional ash effects in this AP video. Sounds like some people had to be rescued after getting trapped in the ash fall on Mt. McKinley/Denali. And really, there is nothing like a good volcanic eruption to get people talking "earth science funding". I think it is safe to say that Redoubt caught few people truly "by surprise" with its eruption, leading to very little drama on the human side of the volcano mitigation equation.


New images from the Redoubt...

Newsletter: Share: