Abstract Blauw

#3 (the first one) for me too. Like you, I'm drawn to the contrast of harsh and soft, and the color combination is enough to hold interest. It's a picture I could look at for a long time.

In fact, the more I look at it, the more I like it. Well done.

Stefan,

I'm involved in developing in situ sensors for oceanography (in situ meaning that you can throw them in the ocean and they do the measurement in the water).
You can find some background info on my work and one of the things I'm working on here on my works homepage. I have to add more projects (we just got new WEB pages) when I find time...

Prieni

Thank you Emily, that means a lot to me what you just said.
I'm going to try and improve it and see if I can do tha again to you

Prieni, That's very interesting.
I've readed it fast now because of the time but will read it better next time.
I'm thinking of quiting the study I'm doing now and do something in biology so what you're doing comes close to that.

Are those sensors also as accurate as lab results?
I can see that they can do the majority of readings but there must be some that are to critical, or am I wrong about that

Stefan,

you're absolutely right, the measurements are critical. And no, usually the in situ sensors are not as good as lab analysis (with the exception of temperature and conductivity (that you need to determine salinity) perhaps).
The advantages of in situ sensors are that you get a better temporal resolution. One example: With a moored sensor you can take a reading every hour (or faster) over weeks. With a good sized research vessel costing around 20kEuro per day plus salaries for the scientists on board you can do the sums what a measurement per hour costs over two weeks.

With a fast measuring sensor you also get depth profiles of the parameters. When you take water samples you get about 24 depths per haul.

Another example: With an in situ ammonia sensor you minimize the risk of contamination. Some labs have stopped doing ammonia measurements because of contamination.
The concentrations of the chemical species we are interested in are usually quite low (picomolar to micromolar mostly) and have to be measured in a salt solution that is about molar.

This is it in very short words.
Prieni

Hi Stefan. It's marmite photos...you either like them of hate them. Guess i've a lot of catching up with the modern trend. You will have gained some insight to my approach to photography and I mean this as an observation. The pictures remind me of the effect of putting domestos into the toilet pan. The blue domestos has a similar effect to whatever you have put into the liquid in the glass. What I like is the originallity of the work and very well executed. I shall be looking out for more of this and you might even get me trying to take shots of domestos in the toilet pan LOL!!!

Prieni, thank you for explain all that, it's surely an interesting project with a lot of potential. These untis are also probably upgradable when more, other or better sensors wants to be added. I can see that they can help with cost-effectly planning a reseach vessel also when you know more about the chimical balance over a time frame.

The NASA Pathfinder is also very interesting, it come close to what you're working ar but then in the sky. The great thing is that they don't fly that high as satiliet so they have less interefrence, by the ozon layer and such. Also since you can simply let it land and change the sensors on it, it's far more practical and cost effectly in most situation.


Hi Ronald, I know what you mean. The setup was quite cruel and I just looked at what kind of effect they give, this my first time trying these things. Next time I'll spend some more time with it and optimize the lighting better. Al these shots was shot with the same light setting you know, only played with the cmaera to get the differend effects.
I would love to see some shots from you, domestos in the toilet pan sounds very interesting. Just do it and be creative and see things.

Two shots now on the photo page. What do you think. Close up and macro. It's interesting on how you react first seeing a photo and how it relates to something in the back of your memory. I instantly saw domestos in the toilet pan. Doing new things, stretching yourself, experimenting is what digital is about. When I become more confident with the K10, I will follow your example but I love close up shots of nature most and will be in my comfort zone for a while. But more power to your elbow for trying these shots.. Presumably you were not using domestos bleach in the glass!!!