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fatuna

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I remember reading about something like this tech in one of Asimov's Robot novels. Thought about trying to build something like this, but don't really have the skills. Awesome they did build this! I guess if they make it easy to train on your speech (just combine it with speech to text), it's a product waiting to happen!

Who then should inject their feelings? Journalists don't care because it's too abstract, politicians don't care because it won't happen in their term, business doesn't care because there's no money to be made, and the people don't care because of all of the above people telling them to ignore it.

Because engineering is all about making choices. Making a boolean 1 bit would be space efficient. However, memory is being read at least 1 byte at a time. If you want 1 bit of that byte, that's an extra instruction.

So storing a boolean in one byte is more speed efficient!

(In C you can store a boolean in one bit. If, for example, you need to store a great number of booleans and memory size is more important than speed. )

Some quick googling tells me the US gov spends between 35 and 40% of the US GDP. Also, the article says 'relatively'. Compared to other nations, especially other developed nations, the US government can definitely be called 'relatively small'.

Nobody wants to shut down all the farming, just reduce it. For example, the Netherlands produces 250% of its own meat consumption. Since it's subsidized, the net financial gain is very low. You could say reducing the production to 125/150% of consumption would leave enough for local consumption plus a little export in good times or a buffer in bad times.

Unfortunately, big agricultural companies hired a marketing company to start a political party which claims to be pro local/small farmers, but is actually just pro big agriculture.

Very interesting indeed. Here in the Netherlands, we've had ID requirements for voting since forever. And even though we don't vote on Sundays (I think it's always a working day), our turnout rate is similar (slightly higher even) compared to Germany. I guess there's more at play here.

Fair question! Carbon had an atomic weight of ~12, oxygen has an atomic weight of ~16. So carbon is responsible for 12/44 part of the weight of CO2. If we assume plastic to be 80% carbon, then 1kg of plastic would produce (0,8*44)/12~= 2,9 kg of plastic. So probably plastic is less than 80% plastic :). But then number makes sense, similarly for diesel.

Nope, any scientist should be agnostic ;). Since the existence of a god can not be proven nor disproven. Do I have an elephant in my living room? Chances are incredibly low, but can you prove it?

As I understand it, continuous running means actually putting (fake) sunlight on the panel continuously for 600 hours. This is done as rapid aging test. A quick google tought me this is within range of commercial cells. As they say in the article, if I might quote fully; "The perovskite solar cells (PSCs) are capable of retaining over 90 per cent of their initial performance after 600 hours of continuous operation, the team noted, making them suitable for commercial use."

We might have the technology in 20 years, but only if people are hysterica about it being needed. If everyone thinks everything is okay and it will solve it self, nothing will happen! It's a prior to the preparedness paradox.

The truth is, there is no fundamental difference between a one and a zero. Flash is either charged or discharged. Physically 'erasing' means setting all the flash to charged and 'writing' means setting (part of) the flash to discharged. If charged means one or zero is a matter of interpretation. Most commonly, charged is considered a one.

Do you have any sources on this? I'm keen to know more, but googling results in either very dry researchpapers or ads on either co2 meters or air purifiers.

Passive cooking; great idea Building electronics + app to help people measure some time? terrible solution

This is what we used to call a "lifter". I did a project on them in high school. Very fun to do, since you use a very high voltage. Our physics teachers were very enthusiastic and helped us a lot, all the other teachers kept a very safe distance. Another fun aspect; because of their obscureness, doing any research on lifters led almost directly to ufo and anti-gravity websites. Based on what I saw on our lifter, generating enough lift to carry actual cargo would require a huge amount of power, or a huge leap in efficienty of their ion-generation. Interesting development, I'll keep an eye on them.