I imagine, machines like smartphones are often integrated to the point of requiring almost no human labor during production. So they’re cheap. Repairing them, however, requires human labor, so it’s expensive.

1 acre ~ 4000 m²

You need approx. 1200 m² to feed a person, so 1 acre was approx. a small-sized family farm back in the day.

Maybe a tunnel could actually help with this?

AFAIK it not just speeds up plant growth, but also extends vegetation period. It means for example that you can plant/harvest from March-October, instead of May-August.

Thanks, I thought the same thing.

Especially the “getting some physical exercise, and reconnecting with the soil” seem interesting upsides to me. We would all need some more of that in today’s time it seems.

It appears big because it’s well used. Also, the house is small-sized. Might depend on your family circumstances.

Well yeah rice, xD

apart from that i’m not aware of anything.

Also beware, that grains need direct solar irradiation (they need to collect lots of energy, much more than vegetables), so stacking them on top of each other is not viable.

Growing enough grain to feed yourself takes 400 - 1000 m² depending on soil fertility.

So you can’t do that in your backyard. It’s also dramatically more efficient to harvest grains with big machinery, so it’s wise to put it together with your neighbours and form something like a cooperative.

thanks!

Nevermind i misunderstood.

Yes, that house seems to be 500 sq ft

No, you cannot source all of your food that way. Only the vegetables. You still habe to get grains from a machinally-farmed farm. It says so in the description (4).

In exchange, the vegetables are really fresh.

Beware that the problem with rooftop greenery is that a lot of building’s ceilings aren’t strong enough for massive soil.

So either the soil has to be very thin, or it often isn’t practical. Keep that in mind.

Well yes, you’re right, I just checked.

I had in mind that the US produces coal and gas, but imports oil. Which was the historical trend, as you can see here. (scroll down a bit) But that trend changed recently, and I hadn’t noticed.

Solar panels consist mostly of Silicon, which is the most abundant material in earth’s crust. There’s really no “mineral” whose mining causes fewer problems. And i put “mineral” in quotes because it’s not your typical mineral that you have to dig up to use.

Also, solar panels are entirely non-toxic, making their safe disposal a non-problem.

Realistically, it’s not gonna happen.

Energy usage is going to increase (quite a lot, if you ask me) in the future due to low-cost solar power. But also, I have to say, that’s a good thing. Solar power has almost no environmental impact at all, and if you can’t cherish that, but still doom into depression, then I would recommend reconsidering your lifestyle and maybe talk to a therapist.

I think the best aspect about these dams is that they are already there. We don’t need to do massive investments in our infrastructure to built giant batteries, since water power is already there and can be easily modified to act as storage additionally.

Water is a living space. It harbors all kinds of life. It’s not good that we try to industrialize rivers. Not good at all. We should use only wind and solar as renewable energy sources. And batteries for storage.

Exactly. Solar will be dirt cheap.

I think the original reason why nuclear was added to the mix was to diversify the risk, back when fossil fuels were the mainstream option.

But nowadays, that doesn’t make sense anymore. We already have diversity:

• solar
• wind
• renewable biomass
• water
• battery storage

you’re not the only one who is surprised by this. I don’t know yet how to explain that.

imo it is better to make simple websites that don’t use too many animations. Otherwise they don’t display properly on some devices. Here’s what it looks like to me:

As you can see, the picture doesn’t show completely (the borders are cut off), also the photo fades in rather slowly, which is annoying when scrolling through quickly.