Recent comments in /f/explainlikeimfive
arcosapphire t1_j1v81m6 wrote
Reply to comment by reb390 in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
> Also fuel for fusion contains abot 100 times the energy per pound compared to fission.
Citation? I thought energy densities were pretty similar.
DukeMikeIII t1_j1v80zt wrote
Reply to comment by CFDietCoke in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
From an electrical grid perspective, wind and coal aren't that different.
CFDietCoke t1_j1v7v4i wrote
Reply to comment by geeseherder0 in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
That's not really a concern. It's tiny amounts, we have ample places to put it, that is a political issue, not a science problem
ywuoiaz t1_j1v7u04 wrote
Reply to comment by r3dl3g in ELI5 the EU and how it works by Is_Rosen
I think you're a little bit too hung up on your US comparisons. Just because the EU has a superficially similar structure to two forms of government that were briefly used in the US hundreds of years ago, doesn't mean it's the same in every respect or that it will have the same fate. Tbh this is something I see from Americans a lot: whenever you see a political situation going on in another country, you seem to have an instinct to imagine something similar happening in the US and assume everything will play out the same as it would within the US system.
> By comparison, in the US our government actually has two speeds; glacially slow, and lightning fast. Generally, Congress does nothing, but in genuine emergency situations consensus emerges pretty quickly and Congress can pass legislation in the blink of an eye. The EU has no such ability, because it's own bureaucracy and laws stand in the way of the EU central government by design.
The EU can make arbitrary changes very quickly if all member states are in agreement, simply by agreeing new treaties. In contrast, the US is stuck with its Constitution, and it seems that the only realistic way to change it is by gradually appointing Supreme Court justices who you think will eventually "interpret" it in a slightly different way.
You could point to the sudden changes in economic and military policies in the EU following the invasion of Ukraine as an example of the EU reacting quickly to something.
Though I think it should also be borne in mind that the EU's strictly limited competences (i.e. policy areas where it has power) limit the kinds of emergency situations in which it is even relevant. For example, it doesn't have a military or police force to speak of, and it has little involvement in public services and social policies.
westbamm t1_j1v7ssg wrote
Reply to comment by CFDietCoke in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
No buddy, without the risk of radiation, we can put them everywhere. That is huge.
CFDietCoke t1_j1v7qur wrote
Reply to comment by DukeMikeIII in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
From an electrical grid perspective, not from "how it makes energy" perspective
And H3 is not the most abundant element in the universe.
ConstantThanks t1_j1v7n7i wrote
Reply to comment by CFDietCoke in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
saying they are zero carbon footprint is not true. you have to factor in the mining of resources, building of the physical power plants, huge amounts of cement and steel, etc., backup power sources, all of the vehicles and other fossil fuel related activity used in maintenance, operation, construction, waste 'disposal,' etc. the only part of the process that's carbon neutral is the part that proponents of nuclear like to think about; the f(us,iss)ion.
DukeMikeIII t1_j1v7m4l wrote
Reply to comment by CFDietCoke in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
Fission and fusion aren't that different, just opposites. One takes radioactive materials and splits an atom making more radioactive waste. Fusion starts with hydrogen, the most abundant element in the universe, and outputs helium. No long lasting radioactive waste and can produce a literal metric fuck ton more energy.
shapeupworld t1_j1v7l69 wrote
Probably nothng as long as greed is such a big motivator in the world. Someone will buy the technology to protect their outdated technologies place in the energy market.
poemmys t1_j1v7h0z wrote
Reply to comment by Antman013 in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
You really believe the power companies would pass those savings on to the consumers?
reb390 t1_j1v78un wrote
Reply to comment by CFDietCoke in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
This isn't really that accurate. Yes, both fission and fusion have zero carbon footprint and in the end will (at least in most cases) just boil water. Fusion however, if fully realized in its most ideal form, would allow us essentially turn seawater into fuel (so the source is basically limitless). Also fuel for fusion contains abot 100 times the energy per pound compared to fission. Finally, fusion has much less risk (but not zero risk) of danger from radioactive byproducts.
Is_Rosen OP t1_j1v6olb wrote
Reply to comment by r3dl3g in ELI5 the EU and how it works by Is_Rosen
Oh okay, I think I understand now. Thank you so much for being so patient with me.
happy_bluebird t1_j1v6nzd wrote
Reply to comment by graydoubt in ELI5: Why green and red are the definitive Christmas colors? by P4rturi
this link says that they did not
Philosophile42 t1_j1v6j2u wrote
Reply to comment by ywuoiaz in ELI5 the EU and how it works by Is_Rosen
Well it is eli5. Things are going to get simplified
geeseherder0 t1_j1v6fgc wrote
Reply to comment by CFDietCoke in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
Except for the spent nuclear fuel from fission…
r3dl3g t1_j1v69vs wrote
Reply to comment by Is_Rosen in ELI5 the EU and how it works by Is_Rosen
>Oh, so it’s like the US in short.
Again, not exactly. It has a lot of systems that are very similar to the US, but their central government is exceptionally weak and unable to actually function that well in a crisis, which is a huge difference in terms of why the US is more powerful than the EU despite the EU having a larger population and a larger economy.
ywuoiaz t1_j1v5t1m wrote
Reply to comment by Philosophile42 in ELI5 the EU and how it works by Is_Rosen
> but when we travel between states we all use the same money
I think you're significantly exaggerating how close-knit the EU is. Its member states are generally more closely aligned on economic matters than in other areas, but not all of them even use the same currency. Currently, the Czech Republic, Hungary, Poland, Romania and Sweden all have their own free-floating currencies, while Bulgaria, Croatia and Denmark have currencies that are loosely pegged to the euro. In areas such as criminal law, social policy and national elections, the EU has basically no say whatsoever and the member states are free to do what they want. The member states are also free to leave the EU, and their national governments have a much bigger say over the EU's decision-making than US state governments have over the US federal government.
Is_Rosen OP t1_j1v5sp4 wrote
Reply to comment by r3dl3g in ELI5 the EU and how it works by Is_Rosen
Oh, so it’s like the US in short. (I hope this doesn’t sound dumb, no one has ever sat down and told me about the EU)
NameUnavail t1_j1v5hsm wrote
Reply to comment by Antman013 in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
That's not at all what it means. And it makes no sense. Net energy positive has nothing at all to do with cost or price of development. And as I said, comparing output value to production cost (rather than running cost) also makes no sense without a time span.
If you run it long enough, even a trillion dollar reactor that produces only a milliwatt of power will eventually have produced more value out than it's production cost.
r3dl3g t1_j1v5g5j wrote
Reply to comment by Is_Rosen in ELI5 the EU and how it works by Is_Rosen
They don't exactly "resolve" conflicts, they just attempt it. It doesn't always work, and even when it does it's glacially slow.
By comparison, in the US our government actually has two speeds; glacially slow, and lightning fast. Generally, Congress does nothing, but in genuine emergency situations consensus emerges pretty quickly and Congress can pass legislation in the blink of an eye. The EU has no such ability, because it's own bureaucracy and laws stand in the way of the EU central government by design.
>I also think that all their med schools are intertwined and it’s easier to get a job in other EU countries.
That's not exactly groundbreaking, though. The US has had similar systems for professional degrees in place for decades, whereby individuals in one state can have their credentials honored in other states.
The only difference is that the individual EU "nations" continue to pretend that they're independent from one another. Hence, the nations of the EU continue to call themselves separate countries, whereas that isn't done in the US.
ScoBrav t1_j1v5g4g wrote
Reply to comment by Kelsusaurus in ELI5: Why green and red are the definitive Christmas colors? by P4rturi
False on the red santa. A quick Google search shows he was repeatedly shown wearing a red coat before that guy drew Santa.
Is_Rosen OP t1_j1v4x4q wrote
Reply to comment by r3dl3g in ELI5 the EU and how it works by Is_Rosen
So all the overarching EU really does is resolve conflict/have a common currency? I also think that all their med schools are intertwined and it’s easier to get a job in other EU countries.
Antman013 t1_j1v4vrs wrote
Well, economically, it means that for every $1.00 spent in production costs, the reactor returns a $1.10 worth of electrical power (just made up #s). That means that energy prices will, inevitably, get lower and lower across the board.
​
Now, think about your life if you no longer had to pay (or paid a MINIMAL COST) for electricity. How much MORE $$$ will you have to spend, in that scenario? Then factor in that EVERYONE, including businesses, will be in the same boat.
​
Everyone LITERALLY becomes "wealthier overnight".
r3dl3g t1_j1v4f8d wrote
Reply to comment by Is_Rosen in ELI5 the EU and how it works by Is_Rosen
In this case, it's the overarching EU that's weak, entirely because too much power is maintained by the nations of the EU.
It gets a little confusing because the EU isn't formally a confederated nation, they just functionally act in that manner.
CFDietCoke t1_j1v83xb wrote
Reply to comment by reb390 in ELI5 what would energy from nuclear fusion mean for humanity? by odyssey92
> . Fusion however, if fully realized in its most ideal form, would allow us essentially turn seawater into fuel
Incorrect. Seawater is not H3 and cannot be fused.