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Comment Re:Density is therefore a necessity (Score 1) 196

A drop of water can self-form into a sphere by surface tension alone. If that is dropped off in space, it becomes a planet??

Not in my view. That isn't implied by what I said, either. I said mass, and I meant mass. If you dropped your putative drop of water off in space, by the way, by which I mean in a vacuum, I don't think it would be able to hold itself together by any means. I suspect it'd most likely sublimate before you even had a chance to really get into admiring it.

Oh, by the way, our sun orbits the galaxy, does that mean we aren't a planet here on earth because we orbit around something that has its own orbit?

Not to me. Again, I said nothing of the sort, and I implied nothing of the sort.

If not, then why do moons get to be moons when many of them are bigger than the "planet" Pluto, when they orbit around something that has its own orbit around another body?

Moons get to be moons in the context of a solar system; once you step beyond that level of organization, most of us (apparently not you, but that's ok) use different terminology to indicate groupings of stars, gas clouds, supergroupings, and so on.

But hey, don't let me get in the way of your irrational ranting; you've got a good head of steam going there, be a shame to see it peter out too soon.

Comment Re:Google is becoming useless (Score 1) 375

It seems to be particularly bad for electronic components. When I search for parts that are rare or hard to get from a local supplier, Google often returns lots of links to legitimate web shops and price comparison sites that claim to have the part in stock or have price info on it, but in fact haven't. Sometimes the first shop that actually has the part in its catalogue won't appear until page 3 of the search results.

I have my doubts about this new algorithm improving things though.

Comment Oh, science, is it? (Score 1) 196

We see articles about how few people are scientifically literate, and so many on Slashdot decry "We are geeks, we understand science!"

Appearently, nope!

Actually, my dear fellow poster, it is you that does not understand science. Science is a method. Information gathered and suppositions constructed are both data. Such data, particularly when the scientific method is applied, may give rise to (hopefully) more accurate metaphor(s) (more data) as to how nature behaves, and that in turn may let us go a little (or a lot) deeper next time around. Science is a very simple, and beautiful, method.

Back to data. Data is subject to naming, among other things, and those names are (a) abstracts selected for the convenience of the various users, (b) significantly arbitrary, (c) quite often of a dual or more diverse nature (and still 100% correct), for instance "daisy" and "bellis perennis" and "flower" and "that thing that makes me sneeze" and (d) often extend into the metaphorical and allegorical realms in order to further-, and/or better-, and/or simply re-define the issue(s) at hand. This most definitely includes one's own personal or sharable naming conventions and specifics.

When something is controversial or simply not static, we will often see the naming structure(s) and/or system(s) undergo permutation, mutation or even outright replacement. Brontosaurus, apatosaurus, brontosaurids, etc. Those are good examples of names that changed for some pretty good reasons (wrong head on the body... the "brontosaur" was an apatosaurus that mistakenly got a camarasaurus head on it, lol. Now "brontosaurids" means, hand-wavingly, "those long-necked ones" and not much else.) These nomenclature mutations are part of the process of integrating the data into our best-approximation of knowledge about the world, which, coming back around to square one, is not "science" either. Science is a method that we "do." Knowledge is not science itself, although it can and should be used in the undertaking of science.

Further, as the users of the data, objects, information vary, often so goes the terminology. Programmer: "Time for za!" Secretary sent to get it: "Can I order a pizza, please?" counter person: "pie, cheese" artisian: "yet another culinary masterpiece!"... they're all correct. It's not a problem. It's normal and natural. It is still normal and natural if someone in a particular household begins to call pizza "magic goo"... and who knows, it could be what everyone calls it some years down the road. I still kind of twitch when someone says "you suck", because when I was a teenager, that was a deadly insult, worthy of an immediate fistfight. Means something quite a bit more casual today, something absolutely unrelated to its original meaning. And so it goes. Naming is by its very nature a malleable domain. As it should be.

The bottom line here is, just because a few astronomers (and it was very few, btw) voted for a particular usage, does not mean we have to, or even should, comply if we don't agree. I'm sorry if that seems too chaotic for you, but that's really the way it is, and likely always will be, too.

But to decry that because you learned something one way, therefore that convinces you forever, that's just plain stupid.

Well, good thing I wasn't doing that then, eh?

Cheers! :)

Comment Re:Going my own way (Score 1) 196

A protostar, given it's in a seriously pre-fusion state, will (as far as I know) be large enough to have quite decisively pulled itself into a spheroid. If it is orbiting another star, I'd say that at that point, it is a planet and a protostar.

As I see it, protostars seem to refer to a class of planet, just as do gas giants, balls of frozen gasses, molten worlds, rocky, airless worlds, and earthlike worlds. That namespace is a very rich field to till, I think.

Once it lights off, I see it as a sibling (binary, trinary, etc.) by virtue of being stars in thrall to one another's gravity. The star with the greater mass I'd call the primary, the next most mass the secondary, etc.

If it is just sitting out in space by itself, I'd designate it a (rogue) planet and a protostar.

Sure, planets can radiate all kinds of things, for all kinds of reasons. Aurorae, ionizing radiation, IR, UV (some high energy electrical storms do this here), atmosphere, monkeys in tin cans... :) ok, that's pushing the indirection a little hard, but... lol

At this point, I'd say that anything that had lit its fusion lamp gets the designator, quite possibly qualified, of "star." There are various kinds of post-fusion states; neutron stars, black holes, perhaps even just dead cinders and fragments, and of course gassy / radiative remnants resulting from their destruction. Probably lots of other things too. The world, Horatio... etc.

That's all just my own outlook though.

Comment Re:Easy life (Score 1) 208

You'd have to browse Pubmed with blinders on to miss all the studies of how weight training leads to injuries. Just picking one author who writes about them, here's 1 2 3 4 studies on it. I only do body weight exercises now, and I count myself lucky that I only have one mild uncorrectable shoulder injury from my lifting days.

Technology

Physicists May Be One Step Closer To Explaining High-Temp Superconductivity 58

sciencehabit writes For years some physicists have been hoping to crack the mystery of high-temperature superconductivity—the ability of some complex materials to carry electricity without resistance at temperatures high above absolute zero—by simulating crystals with patterns of laser light and individual atoms. Now, a team has taken—almost—the next-to-last step in such 'optical lattice' simulation by reproducing the pattern of magnetism seen in high-temperature superconductors from which the resistance-free flow of electricity emerges.
GUI

Xfce 4.12 Released 91

motang writes: After two years of hard work (and much to the dismay of naysayers who worried the project has been abandoned), the Xfce team has announced the release of Xfce 4.12. Highlights include improvements to the window switcher dialog, intelligent hiding of the panel, new wallpaper settings, better multi-monitor support, improved power settings, additions to the file manager, and a revamped task manager. Here is a quick tour, the full changelog, and the download page. I have been running it since Xubuntu 15.04 beta 1 was released two days ago. It is much improved over 4.10, and the new additions are great.
Data Storage

Ask Slashdot: How Does One Verify Hard Drive Firmware? 324

An anonymous reader writes: In light of recent revelations from Kaspersky Labs about the Equation Group and persistent hard drive malware, I was curious about how easy it might be to verify my own system's drives to see if they were infected. I have no real reason to think they would be, but I was dismayed by the total lack of tools to independently verify such a thing. For instance, Seagate's firmware download pages provide files with no external hash, something Linux distributions do for all of their packages. Neither do they seem to provide a utility to read off the current firmware from a drive and verify its integrity.

Are there any utilities to do such a thing? Why don't these companies provide verification software to users? Has anyone compiled and posted a public list of known-good firmware hashes for the major hard drive vendors and models? This seems to be a critical hole in PC security. I did contact Seagate support asking for hashes of their latest firmware; I got a response stating, "...If you download the firmware directly from our website there is no risk on the file be tampered with." (Their phrasing, not mine.) Methinks somebody hasn't been keeping up with world events lately.
Music

Genetic Data Analysis Tools Reveal How US Pop Music Evolved 57

KentuckyFC writes: The history of pop music is rich in anecdotes, folklore and controversy. But despite the keen interest, there is little in the form of hard evidence to back up most claims about the evolution of music. Now a group of researchers have used data analysis tools developed for genomic number crunching to study the evolution of U.S. pop music. The team studied 30-second segments of more than 17,000 songs that appeared on the U.S. Billboard Hot 100 between 1960 and 2010. Their tools categorized the songs according to harmonic features such as chord changes as well as the quality of timbre such as whether guitar-based, piano-based orchestra-based and so on. They then used a standard algorithm for discovering clusters within networks of data to group the songs into 13 different types, which turned out to correspond with well known genres such as rap, rock, country and so on. Finally, they plotted the change in popularity of these musical types over time.

The results show a clear decline in the popularity of jazz and blues since 1960. During the same period, rock-related music has ebbed and flowed in popularity. By contrast, rap was rare before 1980 before becoming the dominant musical style for 30 years until declining in the late 2000s. The work answers several important question about the evolution of pop music, such as whether music industry practices have led to a decline in the cultural variety of new music, and whether British bands such as The Beatles and The Rolling Stones triggered the 1964 American music revolution [spoiler: no in both cases].

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