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Martin Gisser

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  • Relevant book: Richard Durrett, Probability Models for DNA Sequence Evolution. Durrett is a master probabilist.
  • is there any reason to believe that the simpler description is more likely to be true? It is less likely to be wrong, since it contains fewer points of failure. Haven't been here for a while, being totally overworked... But the Occam thing r…
  • Next to add: Food insecurity and political unrest (Syria) Some notes lest I forget: http://www.nytimes.com/2013/03/03/opinion/sunday/friedman-the-scary-hidden-stressor.html the rural farming town of Dara’a was the focal point for protests …
  • Added Frankenstorm Sandy. References to 2 brand new papers. Added link to Gavin Schmidt's excellent 2006 writeup on Medieval warmth and English wine. An "Anonymous Coward" was editing the page during the very first seconds/minutes I wanted to e…
  • nad, I had a short look at the article. (Actually I should run to meet my real worms before it gets dark.) It's just a meta study, and I strongly suspect it is worthless: Soil can not be studied alone, there's always interaction between aboveground …
    in Soil Comment by Martin Gisser March 2013
  • The quoted wikipedia "definition" is a bit crass, yet classical, as it misses completely the importance of soil life. No soil life, no soil! Added a better quote from Bardgett's book. The wikipedia quote talking of rock weathering as if it were a …
    in Soil Comment by Martin Gisser March 2013
  • Celebrating my first gardening day tomorrow (but there's still snow around): Added references to important books by Bardgett and Wardle plus excerpts from back covers. Everybody fascinated by soil should have them. P.S.: Oh, they have both teamed …
    in Soil Comment by Martin Gisser March 2013
  • Added a section "Lifetime of methane in the atmosphere". (The word "chemistry" rang a bell, reminding me of 2-3 discussions I had with chemistry wonks. They couldn't believe that the liftetime in the atmosphere is only 10years.) I'm meanwhile no l…
  • JB wrote: On recent Successful predictions of climate science thread I tried to ask everyone to focus on the science, but it seems certain people feel the need to indulge in arguments like "30,000 people with undergraduate degrees don't believe …
  • David wrote: Now I have a further intuition that there will eventually be a coherent science of complexity, that, being related to the concept of information, it can be abstracted to a generic level. Is this done already? One example for a "…
  • nad wrote: John wrote: It’s basic research. I imagine that “green mathematics” will range from immediately practical mathematics to basic research that helps us understand organisms, ecosystems, social systems and other ’living system…
  • Couldn't find the link. But I enjoyed the photos, esp. the tar pit. I need to produce some good stone age superglue (birch tar) one day to fix my axe. Yes, there's gas involved, like in every fire. Usually you don't see this and it looks like the…
  • 4 and 9 refers to the first plan. 9 of the first plan is 11 in the total plan. 4 of the first is 9 in the total plan.
  • nad: it would be interesting to hear more about that system. it would be also interesting to see pictures. Great! You're the second person I meet who is interested in serious carbon negative technology. See this plan: http://www.junkers.com/…
  • Feeling a little misanthropic today? Thursday is my misanthropism day. :-) Plus, I read "All Quiet on the Western Front" last Sunday. :-( But 2/3 of my comments were serious.
  • Oh! Hello! I'm revisiting the forum here after many months of absence. I just lost yet another job, so I got a little time these days. E.g. perhaps do more biochar writeup here. I'm currently trying to help an elderly engineer in Munich to find/de…
  • War is an important element of human ecology. It was an important population check. Darfur was perhaps the first recent war driven by climate change. It also worsened the ecologic situation (deforestation). Sometimes I think we should formalize wa…
  • John commented: There is a scientific consensus that humans are causing global warming. It's been documented repeatedly. Say what you want, it's true. Without references, your opinions mean little. and comments the comment: It's more polem…
  • Well, "Experiments in Biochar" should be updated, too, with the latest prices of heating oil and wood pellets. For updating the other biochar pages I'd need to get some books back. Not this weekend, alas. Anyhow for me the blog offers more than eno…
  • John wrote: Maybe I should just blogify your pages on biochar. The "Experiments in Biochar" is O.K. Other pages need update, e.g. on the counter-propaganda offered at Copenhagen, which Monbiot had swallowed.
  • I'm not happy with the statement of Perron's theorem: I guess the spectrum can be complex and r is the eigenvalue with maximal absolute value. Isn't r the spectral radius then?
  • (Umm, well, this change of course is serious - but should have been done last century, and today is no longer sufficient: How can it be renewable on a degrading planet?) The picture in your link doesn't show the typical ratio of PV roofs in a Bavar…
  • Well, 1) I haven't cared much about German energy politics until now. There's a lot to learn. 2) Ceterum censeo: This fancy new energy stuff is 20th century. It's not serious IMHO. Give me carbon negative wood heating systems, then I will take you…
  • Not being here again... I got a new job since June. It's at the grid department at the Bavarian sub-headquarters of a major German energy company. It's quite an athletic job: I need to get up ridiculously early, have a coffee with some sugar and th…
  • "Gaia worship, eh? What's that, praying to a compost pile?" Ha haahaha! I've been into almost exactly this yesterday. (We were joking about the flowery fulguration of a garden I'm currently building - the guys are thinking of calling it Florif…
  • Hi Steven, welcome! Applications of algebraic geometry (e.g. toric varieties) have been mentioned a few times on the blog, e.g. in comments here and here. (I hope John recalls some more.) Tell us a bit more about that ecocommune. Where is that? I'…
  • I'll have a look later for some more links. www.gekgasifier.com currently gives an Internal Server Error. Wood gasification is actually quite old technology - e.g. during WWII cars, trucks and even small locomotives were running on wood gas. But I …
  • Yeah, we have the fanatics here, too. I was one of the first. Their numbers are growing. Problem is, where to get the char from: It should be produced along with energy. Classic barbecue char is not optimal char (more tar and oil content, less porou…
  • The interplay between plants and soil is an important factor in CO2 "fertilization". I've added a little to the wiki page [[Carbon dioxide fertilization]].
  • Terve Pertti, I love(d) Finland. Had a girlfriend there last century. Yet, en ymmera suomea is the only complete sentence I managed to learn... Finland with her vast forests and amazingly intelligent inhabitants seems the ideal place to "save …