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

Eruptions in Indonesia and Costa Rica

May 24, 2010, 1:26 PM

For all of you going into withdrawal now that Eyjafjallajökull seems to have quieted down, there are two eruptions of note that aren't in the North Atlantic:

Undated image of the Barujari cone at Mt. Rinjani in Indonesia.

  • Arenal in Costa Rica - which is almost always sputtering away - had a more significant explosive and effusive event today. The volcano produced enough ash, bombs and gas emissions - along with 8 lava flows (or avalanches, depending on the source) - to prompt the evacuation of the National Park around the volcano. Arenal has had numerous strombolian eruptions over the last 42 years since a VEI 3 eruption in 1968 that killed 89 people.
  • Around the world in Indonesia, Barujari, part of the larger Rinjani volcano, had another explosive event, producing a ~2 km / 5,000 foot ash plume that covered nearby farm fields with ash and (apparently) ejected lava (as bombs) a few thousand meters. There have also been lava flows that have entered the caldera lake at Rinjani. The active part of the volcano is a scoria cone (Barujari) inside the caldera and it is this cone that have been erupting off-and-on since the fall of 2009. However, the current eruption has not been large enough to prompt evacuations of people living near the volcano.
  • And finally, for those of you desperate for a last gasp (for now) of Eyjafjallajökull, here is a nice EO-1 image of the May 22 explosive eruption, brought to you by the NASA Earth Observatory.

Eruptions in Indonesia and ...

Newsletter: Share: