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Finnally something I have knowledge of. Dolosse were invent in South Africa many years ago, but they are only one type of concrete block for wave dissipation and protection. Many others exist and some of them are patented and require the payment of royalties to be used. Anyway, in Portugal we do not use dolosse ever. We used it once in Sines deepwater breakwater, which suffered a catastrophic collapse in 1979. The promise of dolosse is that the blocks work together because of their shape and thus the individual block can be lighter and cheaper. This does not work in practice, at least in high energy seas. The ocean is unforgiven. What happens is that if only a few blocks break the whole structure will quickly collapse during a storm. And things can break due to a series of problems and risks. Concrete is only good at resist compression stresses and reinforcement with rebar is almost always a bad idea in ocean conditions, so complex shapes are hard to make and to move without introducing unwanted stresses that reduce the design strength conditions. Other types of blocks rely mostly on their design weight and density, and the shape is just used for increasing energy dissipation and overtopping. For example, tetrapods can be moved with only compression forces on the block.

No, RGPD only applies to EU citizens even if they are abroad or if they are using services not based in the EU.

Great site! nevertheless, I believe your soilurce of news from Portugal is more of tourism promoting website. Forgive me but i need to make just two suggestions: Publish your list of sources for each country; Check Euronews.com, it has news in English for most European countries.

Great job, really! It's bookmarked.

You make it sound like the National Data Protection Commission warnings of it being unconstitutional a minor thing....

If you read the commission comments on the law you will see several examples of how the video surveillance systems in Portugal are miss managed and abused.

This law opens the door to the use of AI in these systems and with all it's ethical issues.

After all, Portugal is not an unsafe country and local politicians are abusing the false sense of security that the video surveillance systems bring to win a few more votes, disregarding all the medium and long term consequences.

GPDR is essentially some guidelines published by OCDE in 1980 turned into law. So yes we should already be operating like that from the start. I get the feeling that to some countries GPDR is not a big deal and to others is a nightmare, depending on the business culture.

Cooperation between cities and cartel is no illegal. Cities were caught in a prisoner dilema and forgot to cooperate.

Has a huge fan of the tiddlywiki project this is a welcome feature .

Actually timber has a nice property of loosing strength gradually and slowly in case of fire, giving time for people to escape. Steel and concrete reinforced structures tend to collapse when a certain temperature is reached.

This reminds me of a cool thought that I've read some place else: "imagine a technology so advanced that can transmit thoughts wirelessly between humans and even change the actual layout of the neruons in our brains". We already do that with our voices....

Yes please.

It is reasonable but it's kinda against an EU directive. The problem was that it was shown that the means to unlock drm were not being provided to authorities thus were not available for users upon request. So we took our own mesures.