Catch up on stories from the past week (and beyond) at the Slashdot story archive

 



Forgot your password?
typodupeerror

Comment Re:No global deletion (Score 1) 85

Censorship is about removing information upon order of a government. This does not happen here at all. "Right to be forgotten" only obliges databases indexers to remove things, not the original websites. And it's not the government who asks for it, it's the very person mentioned in the case.

The government is forcing this removal. The fact that it is forcing it at the request of a mentioned person doesn't make it less censorship. And the fact that it is being removed from an index rather than completely removed is utterly irrelevant: the point is that Google is not being allowed to display public information. This is trampling on free speech and any attempts to parse a ridiculously legalistic notion of what counts as "censorship" doesn't change that.

Comment Re:oh ffs already (Score 1) 276

There is a part of the feminist community that does downplay male rape and male victims of domestic violence, and this is a serious problem. But some of the people doing the best work for raising awareness about these issues are feminists. Aliraza Javaid for example is a vocal feminist who has wrote a lot on the subject of male rape and how the victims are mocked or ignored. Gillian Mezey is not as vocally feminist but has also wrote about it. And one of the recurring points is how sex and gender expectations and biases make it difficult for these victims to get attention or to get psychological or legal support. See for example http://www.internetjournalofcriminology.com/javaid_male_rape_the_invisible_male_ijc_jan_2014.pdf.

Comment Re:Why this matters (Score 1) 346

Basically, it mostly matters to the theoretical-physicists-based economy. To all these people for whom the validity of the Relativity is required (together with all what follows to it, like Quantum Mechanics), because in case of being proven wrong (and/or useless), lots of big projects/reputations/money-generations might be lost.

It is true that we don't have a direct application of this at the moment, but most things don't have direct applications when they are initially discovered. Electricity didn't, nor did radioactivity, nor did relativity (which is actually applied in GPS systems). But there are a lot of people who care about this who aren't theoretical physics people (I'm a mathematician for example.) Moreover, there would actually be more likely be money and new big projects if the gravity waves didn't meet the theoretical expectations. It is much easier to get money for research when a field is in a state of complete confusion.

Finally, please note that quantum mechanics doesn't follow relativity, but is essentially orthogonal. One can do quantum mechanics in a completely classical space-time (and in fact that's much easier). Special relativity can be made consistent with QM, but we cannot at this point reconcile quantum mechanics and GR.

Comment Re:What is a gravity wave? (Score 3, Interesting) 346

Essentially a flexing of space, but it isn't easy to visualize. Imagine a circle as a gravity wave goes through it then the horizontal direction will get flattened and the vertical (direction of the wave) will get stretched out, and then the reverse. The actual equations for what it does to an object though are non-trivial.

Comment Why this matters (Score 5, Informative) 346

This matters for a bunch of reasons. First, it helps close confirm predictions of general relativity. We had a lot of evidence already but more is good. Second, if we get more data we might be able to rule out or narrow down our search space for any eventual quantum gravity theory since they have predictions about how gravity waves should behave (although this would require massively upgrading LIGO). Third, this gives us insight into stellar objects that we normally lack the ability to examine. For example, we don't know much about what the cores of neutron stars are like, but different ideas about them give different predictions about what sort of gravity waves two merging neutron stars will create. So this may give us more data about what exotic objects are actually doing. Fourth, this gives us for the first time a way of getting data from very far away sources that isn't in the electromagnetic spectrum. Right now, we can detect neutrino bursts if they come from a few million light years away but pretty much everything from outside our little galactic neighborhood has to come either from electromagnetic radiation or detecting cosmic rays. But LIGO can already detect gravity waves from events that are a billion light years away. So this gives us a whole new long type of data.

Comment Re:oh ffs already (Score 1) 276

You're absolutely right. The fact 50% of domestic violence victims have 0% of federal funding and shelters, and 50% of rape victims aren't even legally recognized, is a real and serious problem.

I'm not sure what your point is. Yes, there are massive problems with how male victims of domestic violence and rape are treated. Problems exist in how we treat men and problems exist how we treat women. We shouldn't ignore either class.

Comment Re:oh ffs already (Score 2, Insightful) 276

Gender issues are a real and serious problem. And you don't need to be a "SJW" to get that. Inefficiencies introduced by biases are bad because they make less good code get written or accepted. This harms *everyone*. And understanding exactly how much of a bias there is and where there is bias or isn't bias is important. If there's no problem in a given area, then we should know about that so we can focus resources elsewhere. We don't lose by getting more good data about the situation.

Comment Re:The technical problems with this are immense. (Score 1) 345

In the first case, not that serious aside from processing power. In the second case, so many technical problems that it took in inflation adjusted dollars more than 20 billion dollars and http://www.brookings.edu/about/projects/archive/nucweapons/manhattan and even after that most countries still can't do. In the third case, lack of understanding of aerodynamics and lack of efficient combustion engines. In the last case, they were actually moving in that direction. The real problems that slowed it down were metallurgy and quality control.

For a site supposedly for nerds the nerds sure are short sighted when it comes to technology

I think you are missing the point here. My comment was to not say that this is impossible, but exactly what I said: the technical problems are immense. If he can get over them, that's great, but it is worth appreciating how difficult this is likely to be.

Comment Re:The technical problems with this are immense. (Score 1) 345

Is he? I didn't get the impression of that from TFA that it would switch over. TFA talks about both electric and VTOL but not about using conventional power during flight. If that's what he meant, that's much more potentially reasonable but given his long-term goals of dealing with global warming and fossil fuel dependence (which is why he's so in favor of electric cars) that doesn't seem like that's what he means. Do you have a citation or source that he means that?

Comment Re:The technical problems with this are immense. (Score 1) 345

You can recharge/refuel more frequently with an electric car. A bit hard to land and recharge in the middle of the Atlantic ocean. So the reduced range of an electric car (around 200 miles for an electric car as opposed to 300-400 miles for a gas car) doesn't matter as much. Also, cars are less dependent on fuel in some sense than planes since planes need to go fast. So you need a lot more fuel proportionally, so its efficiency matters more for planes.

Slashdot Top Deals

Work without a vision is slavery, Vision without work is a pipe dream, But vision with work is the hope of the world.

Working...