About Rik

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Retired science teacher.

Languages

English, French, German

I'm passionate about

Science, philosophy, skepticism, atheism, biking, walking.

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Comments & conversations

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Rik Delaet
Posted 10 months ago
Damian Palin: Mining minerals from seawater
You say:... without huge drastic change ... But that's happening all the time. And how do you know that wormholes etc. are not going to happen? On what evidence you predict that he Big Bang theory is wrong? I agree that you don't build your strategies on it for the near future and I agree with you that our planet is our, and of all the other species, home for the time being. I agree that our unbounded proliferation is a disaster not only for all those other species, but also for ourselves. But I'm not a pessimist. I see beginnings of more rationality in all the trouble that's happening in the world nowadays. On the other side: I could be wrong. But what's the use of being pessimist? What's the use of giving up before you've started?
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Rik Delaet
Posted about 1 year ago
Damian Palin: Mining minerals from seawater
If we humans manage to survive the next 20,000 years, I suppose most of our problems will be over and we will have spread out into the galaxy. Mankind is still in its cradle and you know a cradle gets dirty. But hopefully we'll grow up. By the way, nature isn't a masterpiece. Masterpieces are produced by thinking minds, nature is a product of evolution. And evolution isn't mister Nice Guy. "Red in tooth and claw", remember. If we're worth our money we will outdo nature in 'goodness'.
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Rik Delaet
Posted about 1 year ago
Damian Palin: Mining minerals from seawater
What those ships do is essentially the same as what the sun does: displacing pure water from sea to land from where it will flow back to the sea. No water destroyed in the process. More important is how polluted the water will be that goes back into the sea.
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Rik Delaet
Posted about 1 year ago
Lee Cronin: Print your own medicine
I'm waiting for a chemist with knowledge of modern chemical technology to comment here. For me this seems pure nonsense. But I keep an open mind and hoping that my brain will not fall out. Nevertheless Mr. Cronin seems to have enough credentials: http://www.chem.gla.ac.uk/cronin/ If this amounts to something it will be game changing. I'm holding my breath.
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Rik Delaet
Posted about 1 year ago
Lee Cronin: Print your own medicine
This is something completely different. This printer works with existing materials. But the printer Lee Cronin talks about has to synthesize molecules. How that can be done molecule per molecule is the question. I have no clue. Can somebody help me out?
3994f26b0176c65e5c9a1c377853db6bb8d510eb 50x50
Rik Delaet
Posted about 1 year ago
Lee Cronin: Print your own medicine
This is something completely different. This printer works with existing materials. But the printer Lee Cronin talks about has to synthesize molecules. How that can be done molecule per molecule is the question. I have no clue. Can somebody help me out?