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I planned to write about sodalite. This is beautiful mineral and I think I have a nice photo of sodalite grains. I sat down and started writing: Sodalite is one of feldspathoid minerals. And then I thought. What on Earth is this sentence giving to someone who has no idea what is feldspathoid? Who would [...] There are myriad of aspects one has to take into account to get good macro photos. I covered some basic guidelines here: How to take good macro photos. Now I am going through couple of simple to use but extremely helpful tools that helps to make the macro you just took look much better. This [...] I am testing an extreme macro lens (Canon MP-E 65mm 1-5× Macro) that allows to take shots with 5× magnification. Usually macro lenses have only 1× magnification. What is the meaning of these magnification numbers? It means that with this lens one can take photos of objects that measure only one fifth of the image [...] I thought that I do not have anything significant to add to Accretionary Wedge #41. My home country is very quiet geologically. Being far from the plate boundaries we rarely have anything dynamic happening here. I have experienced one earthquake but there is really not much to talk about. But then one event crossed my [...] Jessica Ball wrote about her experience at AGU where she talked about the Geoblogosphere. She also pointed to an article written by Callan Bentley et al. which I found very interesting. My blog was not included in this study because I wasn’t an active blogger then but I thought that maybe some of my readers [...] There are several things you need to pay attention to if you wish to take good macro photos. Here are some tips I have acquired while learning this craft. I try to keep it very simple and concise. Partly because I am no expert in this field and partly because topic like this may easily [...] I am pretty sure most of the readers of this blog live in more southerly latitudes than I do. I live in Estonia and my latitude is 58 degrees north. This is comparable to southernmost points of Alaska. The days are the shortest now. The Sun is rising only 9 degrees above the horizon [...] Christmas is approaching fast. Here is an attempt to make a Christmas card composed of sand grains. You may say that it is artistically not very high standard but you see here really tiny objects that were painstakingly arranged in an attempt to make the scene reasonably recognizable. With this card Sandatlas wishes you all [...] It seems that the most common foram test in Hawaii light-colored beach sand is Amphistegina. This foram (genus) lives in Indo-Pacific oceans and some species in Western Atlantic also. The tests of Amphistegina found on the coastline of Hawaii islands are usually heavily wave battered and barely recognizable. This foram appeared in early Eocene (about [...] Ole Nielsen wrote an interesting post about the world’s highest volcanoes. There are several candidates. Nevados Ojos del Salado and Llullaillaco being the most serious contenders depending on whether we count all of them or only the historically active ones. Which volcano claims the title is not of paramount importance to me. What is interesting [...] |
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CC BY-NC Siim Sepp (sandatlas.org) |
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