Wait, I messed up. It's almost 40 years ago, not 50

It's been in the work for quite a while. The mayor of Paris announced that the seine will be open for swimming in 5 years ... In 1988.

So it took a bit longer than planned, almost 50 years instead of 5 but the fact that they are opening it now is the result of these 50 years of continuous improvement.

I moved to the Caribbean for a few years a while ago and I wanted to do something meaningful.

I saw that the trade between islands was quite low despite being very close, a lot of businesses are struggling because they lack the economy of scale that inter-island trade could bring.

Since it's low volume it's quite expensive and slow to move stuff between islands the traditional way (container)

So I thought that a small autonomous cargo boat going between islands would be a great idea !

I was quickly told that it was a terrible idea unless I wanted to be "recruited" by a cartel.

Probably, it should be quite efficient as well.

On the other hand reversible heatpumps work great with floor heating.

Having a cool floor during a heatwave is amazing, plus no noise,

The main problem here is not that toxic waste has been stored in mining tunnels.

The main problem is that there are tons of dangerous chemicals that need to be stored somewhere. It's all residues from incinerating waste. Once we have all these waste what do we do with it ? Is there a better option than being buried deep in mining tunnels ?

We absolutely need to reduce the waste we produce.

Also, everyone should have a look at what happens to mine tailings. The prices of mining leaves begins hundreds of millions of tons of toxic material containing heavy metals like mercury, cyanide of arsenic.

The method of dealing with it is just to build a dam and store it on the surface. It contaminates the land, the water, sometimes the dam breaks and buries entire villages under toxic waste. No one really cares because most of the mining happens in third world countries, remote communities and because it is needed to feed the global consumerism way of life.

It depends on the kind of heatpumps, in a lot of cases the heatpump is installed to replace a boiler, reusing the radiators and hot water circulation already available.

Unfortunately in this case the heatpump cannot be used as AC.

It's much darker than what I thought. For me a mickey is a booger.

It's not that hard actually, if you don't want them to catch the wind you let them rotate freely and they will automatically face the wind in a way where they have almost no drag.

It's much easier to automate than a regular sail. It self aligns with the wrong and with one or two actuators your set the direction you want to go too.

Automating flexible sail would be way, way harder.

Even Putin still has his legion d'honneur.