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Forum: General Talk
05-05-2012, 01:34 AM
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There are fascinating types of nuclear reactors. The HTR is just one of them. The Chinese did a brave test some years ago. They have redrawn all controls rods and watched how the reactor went supercritical. This reactor type shuts itself down if cooling or something else fails just due to the cross-section of uranium. That's a strong belief in science ;)
Anyway: While there are great types of reactors, it is questionable what problems would occur if a catastrophe like the tsunami last year in Japan happens again. The worst part is that there are only a few concepts how to handle the nuclear waste. As far as I know there are some radiactive wase repositories in progress but none ist finished though we've been using this technology for decades.
I don't know if the news reached you that we in Germany plan to quit using nuclear power plants after 2022. A decision which earned us a lot of laughter but I think it will be interesting if we can manage to produce our energy just by using renewable energy sources (80% until 2050 is the goal). This requires a lot of research as we need new methods of energy storage and new networks for energy transport. At the moment it doesn't look that good. We are able to produce a great amount of energy using renewable sources ( > 20%) but only about 10% is used as much of the energy is not needed when it is produced and we can't even export it because the energy network is bad and not designed for this kind of energy production.
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Forum: Welcomes and Introductions
04-26-2012, 01:24 PM
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Hey Pentaxians,
I've just registered but already read in the forum for two or three weeks and though you've worried me with front/back focus issue I've bought my K-5+18-135mm last week. My previous camera system was the Olympus Micro Four Thirds and it would have been perfectly fine for me to stick with that mount. Unfortunately my E-PL 1 didn't match my requirements anymore so I wanted to upgrade. The new astonishing E-M5 is a great camera but way to expensive in comparison to its DSLR competitors. That's why I've decided to buy an APS-C DSLR and I had the EOS 60D, the D7000 and the K-5 on my list. While the EOS 60D dropped very early due to its cheap build quality it was a hard decision between the D7000 and the K-5 which had narrowed down to a question of system but the K-5 (as well as the D7000) instantly won the moment I've held it in my hand at my local camera store. So far I'm very happy with my decision and it seems I'm not affected by the front/back focus problem (tested it with a test chart).
For now I'm broke but as soon I have saved some money in my equipment budget I would be glad to get some good advise on new lenses and accessories.
Happy shooting!
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