I always liked to color in Mandalas as a child: It’s soothing to see the repetitive patterns emerge in bright colors out of a black and white sketch.
While I’ve played around a lot with ICM photography in the past, I’ve only rarely used in-camera multiple exposures. Mainly, because my old X-T30 offers a limited set of features. So, here is a short series of pictures using additive multiple exposures with the X-T5:
Which one do you like the most? For me, it is certainly No. 1 (or maybe No. 3). I tried around with multiple plants, but this one worked the best by quite a margin: It was helpful that the edges of the leafs were in strong contrast to the deep greens to get the distinct mandala-like appearance and structure. Additionally, there was some lovely passive light through sparse clouds. The Fujinon XF 80mm Macro lens did a wonderful job at isolating the bloom (which was only around 1cm in diameter) from its background while retaining all the little details.
This year’s winter was rather typical: November is rainy and gray and one begins to wait for colder temperatures. Snow actually comes around for brief period in the beginning of December, but is then replaced by even more rain and days after days with little light. Darkness surrounds the city and its inhabitants minds. In January, one has given up the hope for a cold winter after all, and the wait for Spring begins. And while February starts off with some warm sunlight and everybody is getting ready to enjoy the first blossoms, winter grips on tightly again and doesn’t let go, even though it is the middle of March by now.
Freedom to fly and live, and thrive and try new things, drop by the roaring sea, be free below the heavens of the world, be slow and grow, relentless wind between the feathers, thoughts stirred up by elements, weather dictates sentiments, torn between the now and then – when will we feel this life again?
Small and quick,
he hauls his loot,
cuts through the light,
speeds through my sight,
lifts off, his flight
insouciant.
Light is everything in photography. It shapes the scene and provides a sense of time and place. Depending on the direction of light in relation to the camera, the same subject can change its color, form, feeling, and essence.
We are slowly approaching the end of our walk. A walk on easy terrain. The vast beach is leading to the vaster sea. The certain becomes uncertain, the walk becomes a swim. We are leaving the comfort in exchange for new experiences, for memories expected to remain. Towards new shores, one sunrise after another.
--- algorithm (noun) ---
A well-defined procedure consisting of a finite number of consecutive steps. Often confused with its realization (implementation).
--- The Algorithm (proper noun) ---
A musical project that blends electronic music with progressive metal. Often confused with random noises.
--- algorithm (example) ---
def is_alive()
return flip_coin()
def life()
while(is_alive())
go_outside();
take_pictures();
persist();
decay();
Aren’t algorithms fascinating? Well-defined procedures that solve well-defined problems – often with the goal to find the most efficient solution. It’s the single most important thing that amazes me in computer science.
My most favorite problem in algorithmics is one of the most simple ones. Suppose you have a short word, let’s call it T. Additionally, a long text S is given. The task is to determine whether the word T is contained within the text S. Thus, we want an algorithm for a simple search! Suppose the word T contains n distinct characters; for example T = “alive” has a length of n = 5. Similarly, the text S has a length of m, for example, S = “The tree is alive.” has a length of m = 18 (including the spaces and the period).
The most simplest algorithm aligns T at the first position of S and compares all n characters of T to the first n characters of S, which requires n comparisons (in other words, for our above example we answer the question whether “alive” and the first five characters of S are identical. Hint: they are not). Afterwards, the word is shifted to the next position of S and the comparison is repeated. This happens for all m starting characters of S. The problem? This will take a total of m times n comparisons which already amounts to 90 comparisons for our little toy example.
But what other solution could there be? There are many. None of them are easy to understand (at least for me), but all are fascinating. The first one I learned was the KMP algorithm, which performs mind-boggling reuses of previously obtained information about differing characters. The fascinating part: It only needs (roughly) m + n comparisons! A speed-up that determines whether we are able to browse the internet or not, whether we can perform research on molecular data or not, and whether we can advance as a technological species or not. Algorithmic design makes or brakes today’s society (at least for now, until climate change kicks in – always end on a positive note, right?).
Blurry shapes are stirred around,
mixed in motion, give a notion
of the hidden world above.
Day and night are intertwined
and realigned by breathing air:
a little water love affair.
Punkt im Dunkeln 