How in the hell was anti-intellectualism ever framed as cool?
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How in the hell you tink airplanes will fly?
also biofuel lol
When planes and distances get larger, hydrogen starts to make more and more sense. But I guess we won't get that far and planes will stay with biofuel and synfuel.
Hydrogen doesn't have best track record with regard to aviation.
You mean the famous accident where the thing that was completely different from an airplane was full of hydrogen and burned down for reasons completely unrelated to that hydrogen?
Electric airplanes are highly inefficient and not really good enough for commercial use.
Ah the moment.
That’s unlikely to change for long distance flights.
For short flights small electric planes are becoming viable already, and they will continue towards medium flights over time.
But theres no serious concepts for a battery that could compete for long flights.
That’s not to say that planes are doomed to be fossil dependent forever. But the likely solution will be a renewable high density fuel, possibly hydrogen or something easier to carry.
It’ll be less efficient than batteries on a energy in to work out basis, but once the cost of carrying the weight is considered, that will always swing way in the favour of high density fuels regardless of battery efficiency (for long distance).
Three words, nuclear powered aircraft. I see no way that could go wrong.
Honestly I wanna see the crazy logistics of using rocket fule, since it's just liquid oxygen and hydrogen with a water byproduct
Personally I doubt electric flight will ever be viable, but that’s because we should be using trains for short flights …. Says me from an urban area
Me who grew up rural near a small city says ….. what about connections from small city to an airport where I can go places?
Me from when I worked at an investment management company and saw people with more money than they knew what to do with says ….. I just need a quick hop down the Cape to my beach house (never mind that I was never one of those people)
Yeah if it didn't cost me 3 or 4 times as much and take a week instead of 5 hours I would much rather take a train than fly home across the country
Superconducting maglev trains can currently go about 70% the cruising speed of a 737, and could take you directly into a city center rather than an airport on the outskirts.
Also, price isn't only a function of supply and demand. We also choose to subsidize fossil fuels with public funds, to make them artificially cheaper.
The guy deleted his first tweet, but doubled down in his replies.
https://mahb.stanford.edu/library-item/fossil-fuels-run/
In figure 1 [4] we show the future energy reserves in billions of oil equivalent, Btoe, as a function of year. While we obliviously use up fossil fuels without taking stock of about what future reserves look like, we should take note of the endpoints shown here. These endpoints are dangerously close: Since our society is so dependent on fossil fuels, it therefore is extremely important for us to know when these fuels will run out according to [4]:
Oil will end by 2052 – 30 years time
Gas will end by 2060 – 40 years time
Coal will last till 2090 – 70 years time
However, according to BP [5], earth has 53 years of oil reserves left at current rate of consumption.
A lot of that extended when we discovered fracking. The industry will keep finding new and more expensive ways to locate and abuse natural oil and gas. I don’t think the world will “run out”, but it will certainly be too expensive for the majority of society. But that’s effectively the same.
When I’m depressed, I think of it like …. We won’t run out, it just gets harder and more expensive to get, BUT we’ve already passed the point where we could recover in the event of civilization-wide catastrophe. We no longer have sufficient recoverable (as a less advanced society) energy sources to rebuild. If we fuck up now, that’s it for humanity
I think framing it as fossil fuels will run out in our lifetime, or the lifetime of the next generation stresses the urgency of the situation, and makes it more relatable than saying “fossil fuels will run out by year 20XX”. It feels harder to ignore that way.
I came to the comments looking for a citation on the supply claim so thanks for the link!
Another thing to think of is what it will look like as people grab at those last remaining drops. We already see it in loosening of restrictions to allow fracking, and moving villages and farms to scrape coal out of weaker and weaker deposits. The costs (not paid) of gathering this fuel will only increase and it's already more than many are willing to tolerate, so the exact date of running out doesn't matter at all.
I hate to spoil your fun, but these dates are always some what wanky. When my grandpa was in school, they told him that there ist still enough cpal for 40 years. When my dad whas in school tey told him that there is still enough coal for 50 Years. My elementry school teacher told me the same. If ypu look it up today, you will find that the coal reserves last for another 80 to 150 years. Resources dont run out. They get more expensive as the reserves dwindel leading to the developement of alternatives.
https://feddit.uk/comment/2564489 Someone did look it up yesterday. We have approximately 70 years of coal left.
I don’t think anyone finds climate change/running out of fossils fuels “fun” so you’re not ruining anything.
Might I throw onto the table thorium power plants?
You can throw up all over the place for all the difference it makes. Sure, there are benefits that sound great, but the reality is they don’t exist. I think India has the biggest investment in trying to figure it out, but it’s not there yet and may never be
What do you mean, thorium is far more common than uranium and require less processing to be used. Plus, it isn't always active like uranium, meaning it can be controlled a little better. It's worth looking into.
That’s exactly what I mean. There are benefits that sound great. However there’s not a practical reactor based on that, yet.
In some ways it seems like fusion. Every few years you see a flurry of headlines of how great it would be, and we’re only ten years away, but it hasn’t happened
Bonus photo of the protesters and the one who glued his feet to the concrete.
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