Know your scale – Why wavelengths are so important

So you thought there is just one “seismics”? In general, we might say that the seismics experiment is watching mechanical waves travel through Earth and then apply science on it to get an image of the Earth’s interior. However, this experiment and the science behind it has a high degree of uncertainty. When we conduct […]

Seismics Introduction

We send sound into the ground and listen what comes back to the surface. There are a lot of sources we can use to make this sound. A very basic but effective approach is to use a sledgehammer and bang it on a steel cap on the ground. This works well to get some acoustic […]

Beasties of fur and of feather

Our world long ago with lands joined together when first appeared beasties of fur and of feather. Artistic view on the life in the Triassic period by Richard Morden. Get it here! (All copyright belongs to him!) This artistic map shows the supercontinent Pangaea and the Tethys ocean. It’s a surprisingly accurate depiction where the […]

Dangerous cargo and magnetic prospection

This week a boat in Hamburg was carrying dangerous cargo. It was an unexploded grenade that had been found on a building site. Now it might seem weird that this kind of cargo is being transported on a boat on the largest lake in Hamburg, but a time fuse made it impossible to defuse the […]

Happy New Year! – On gravitational attraction

A new year starts and suddenly a lot of people are concerned about their gravitational attraction to the Earth. In January new subscriptions to the gym spike compared to every other month. Weight watchers and a lot of the other programs for weight reduction invest in every commercial break on TV. Gravity is a very […]

The Apocalypse – a Geoscientific View

Today is a fun day. Some New Age guys decided that an ending calendar of an ancient culture can only have one meaning: The world is going to end. Homer Simpson on the end Copyright Matt Groening Now this happens quite often and some people will always tell you that this world is going to […]

A Global Lithological Map

It’s colorful, it’s huge and it’s a hundred times more detailed than its predecessors. <span class=”removed_link” title=”″></span> It’s a new lithological map of the worldHartmann, J., & Moosdorf, N. (2012). The new global lithological map database GLiM: A representation of rock properties at the Earth surface Geochemistry Geophysics Geosystems, 13 DOI: 10.1029/2012GC004370. The map is […]

The l’Aquila trial: Getting the big picture

In April 2009 a devastating earthquake hit the town l’Aquila in Italy. Destroyed buildings leave 308 persons dead and over 22 thousand have to flee to government funded shelters. This as it is, is a tragedy on many levels, but this week the aftermath pushes l’Aquila back into the media and leaves the world wondering […]

The three virtues

Don’t forget the three virtues of a Geophysicist, namely: True Love, True Friendship, True Amplitudes. ~ M. Tygel This happens to be my favorite quote about geophysics. A fellow writer asked me, what this quote was all about. So I began to elaborate on this. The part about “True Love” appears to be the easiest […]

Did you see it?

Did you see it? We do a big deal in presenting the most stunning and interesting places around the world and explain the science behind it. We always try to go that little extra and get the story complete. In the beginning, of this year’s summer, the U.S. Geological Survey called for you to complete […]