Category: Nature

Fascinating photo from solar eclipse of January 4 2011

From where I live, those who were lucky enough to have a cloud free sky could see a par­tial solar eclipse at sun­rise last Tues­day. Although I couldn’t see it from my house in Falun, I heard from col­leagues that it could be seen from the neigh­bour­ing town of Bor­länge. How­ever, I’ve now learned that […]

Tuesday January 11th, 2011 in Astronomy, Nature, Photos | 1 Comment »

Video shows European airspace rebooted after ash cloud

This visu­al­iza­tion shows how the Euro­pean air­space returns to nor­mal after the clo­sure due to the ash cloud from the Eyaf­jal­la­jökull erup­tion. The inten­sity of the traf­fic is amaz­ing when seen in this way. It’s easy to see why advanced auto­mated flight posi­tion­ing con­trol sys­tems are required nowa­days. Air­space Rebooted from ItoWorld on Vimeo. Note […]

Sunday May 16th, 2010 in infrastructure, Nature | No Comments »

Intense set of earthquakes at Eyjafjallajökull and approaching Katla

I’ve been fol­low­ing the devel­op­ment of earth­quakes near Eyjaf­jal­la­jökull and Mýrdal­sjökull at the web­site of the Ice­landic Mete­o­ro­log­i­cal office. The activ­ity at Eyjaf­jal­la­jökull has been more explo­sive over the last few days than it was in the pre­vi­ous week. I’m stunned by the seis­mic activ­ity over the last two hours, which must indi­cate that there is […]

Monday May 10th, 2010 in Nature | 2 Comments »

Ash cloud: Societal and economical consequences of extended flight ban

Today’s soci­ety depends on flight for sup­ply and deliv­ery of goods. An extended flight ban has severe con­se­quences. Here are some exam­ples. Med­i­cines: Ten per­cent of Swedish drug import is by air­borne freight. Short­ages may occur after another few days. Backup plan is to import by car from cen­tral Europe, says one major sup­plier of […]

Sunday April 18th, 2010 in infrastructure, Nature | 1 Comment »

Is this volcanic ash?

I made an exper­i­ment and placed a white plate out­doors on my veranda this after­noon. Dur­ing this time there was a light rain shower. When I checked the plate about an hour later, I found a num­ber of small par­ti­cles, seen in the pic­ture below. I’m uncer­tain of how much debris that would nor­mally come with […]

Saturday April 17th, 2010 in Nature | No Comments »

Beautiful pictures from Eyjafjallajökull volcano

The vol­canic erup­tion on Ice­land is caus­ing seri­ous trou­ble, both for indi­vid­u­als and for soci­ety at large. Still, there is some­thing deeply fas­ci­nat­ing about the enor­mous pow­ers that are let loose when a vol­cano erupts. The cur­rent erup­tion at Eyjaf­jal­la­jökull started on March 20 at Fim­mvörðuháls, which is located between Eyjaf­jal­la­jökull and Mýrdal­sjökull. The ice […]

Saturday April 17th, 2010 in Nature | No Comments »

Ash cloud over Europe

The above dis­per­sion map, which is a sim­u­la­tion, shows that the ash cloud from the Eyjaf­jal­la­jökull vol­cano is likely to remain over Europe for at least another cou­ple of days. As seen in the pic­ture, the cloud is expected to widen and remain over parts of Scan­di­navia and cen­tral Europe as of Sun­day 06h00 GMT+1. Swedish […]

Friday April 16th, 2010 in infrastructure, Nature | 1 Comment »

We said “Send cash”, not ash…; How will extended flight stop influence society?

It’s fas­ci­nat­ing to think of the con­se­quences if the ash cloud from the erup­tion of Ice­landic vol­cano Eyjaf­jal­la­jökull con­tin­ues to shadow Europe for a longer period of time. The above pic­ture shows how the ash cloud, clearly vis­i­ble, stretches from Ice­land across the Atlantic beyond the Faroe islands and Shet­land islands towards cen­tral Europe. Currently, […]

Thursday April 15th, 2010 in Nature | No Comments »