fibonacci spiral – logarithmic spiral curve fitting to cactus areoles
the fibonacci sequence (0, 0, 1, 2, 3, 5, 8, 13, …) is a very interesting series of numbers which can be found anywhere from aesthetics to nature. for example, […]
fotogalerie: costa rica teil 2: vulkan arenal, hängebrücken und tropische früchte
die folgenden bilder gehören zu diesem blog-artikel. dona christina zeigt pflanzen aus ihrem medizinischen garten “la aroma-tica”, nahe la fortuna königs-granadilla (passiflora quadrangularis). die blattstiele dieser passionsfrucht-art bilden pseudo-eier, damit […]
photo gallery: costa rica part 2: volcan arenal, hanging bridges and tropical fruit
the following images are part of this blog post. dona christina presents plants from her medicinal garden “la aroma-tica”, near la fortuna giant granadilla (passiflora quadrangularis). the plant forms pseudo-eggs […]
underwater photos of chara vulgaris
i’ve been meaning to post these for quite some time now: chara vulgaris is a multicellular green alga in the family characeae (de: armleuchteralgen; the closest relative of green land […]
ice fishing at belvedere castle, vienna
it probably isn’t what it looks like, but it seems that somebody went ice fishing last weekend at the lake of belvedere castle, right in vienna, austria: what do you […]
light and dark – curve fitting to a winter landscape
i’ve spent quite some time working on curve fitting in R (open-source software for statistical computing), recently. while most of that work went into scientific data at university, i was […]