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

 



Forgot your password?
typodupeerror
×

Submission + - SPAM: Yes, Pluto is a planet

schwit1 writes:

The process for redefining planet was deeply flawed and widely criticized even by those who accepted the outcome. At the 2006 IAU conference, which was held in Prague, the few scientists remaining at the very end of the week-long meeting (less than 4 percent of the world’s astronomers and even a smaller percentage of the world’s planetary scientists) ratified a hastily drawn definition that contains obvious flaws. For one thing, it defines a planet as an object orbiting around our sun — thereby disqualifying the planets around other stars, ignoring the exoplanet revolution, and decreeing that essentially all the planets in the universe are not, in fact, planets.

Even within our solar system, the IAU scientists defined “planet” in a strange way, declaring that if an orbiting world has “cleared its zone,” or thrown its weight around enough to eject all other nearby objects, it is a planet. Otherwise it is not. This criterion is imprecise and leaves many borderline cases, but what’s worse is that they chose a definition that discounts the actual physical properties of a potential planet, electing instead to define “planet” in terms of the other objects that are — or are not — orbiting nearby. This leads to many bizarre and absurd conclusions. For example, it would mean that Earth was not a planet for its first 500 million years of history, because it orbited among a swarm of debris until that time, and also that if you took Earth today and moved it somewhere else, say out to the asteroid belt, it would cease being a planet.

To add insult to injury, they amended their convoluted definition with the vindictive and linguistically paradoxical statement that “a dwarf planet is not a planet.” This seemingly served no purpose but to satisfy those motivated by a desire — for whatever reason — to ensure that Pluto was “demoted” by the new definition.

The science is at last settled.
Link to Original Source

Submission + - Uber vehicle reportedly saw but ignored woman it struck (engadget.com)

gollum123 writes: Uber has reportedly discovered that the fatal crash involving one of its prototype self-driving cars was probably caused by software faultily set up to ignore objects in the road, sources told The Information. Specifically, it was that the system was set up to ignore objects that it should have attended to; Herzberg seems to have been detected but considered a false positive.

Comment Rich get more rights (Score 1) 825

That seems to me like the beginning of an aristocracy, where if you can afford to pay, you have more rights than people who can't pay. While an interesting concept in principle, and I'm sure it would work without any major increase in accidents and provide the state with more money -- I just can't support something that's ethically wrong in my opinion.

Comment Re:Strong pass (Score 1) 169

You didn't even give reasons why 4e killed your interest

Because it isn't up to debate. If I started listing reasons why 4e killed my interest, all it would do is invite people to argue with each point, and say, "no, this was a *good* change", when none of it would make the game any less dead to me. You can't argue me into liking 4e by arguing each of the points why I dislike it. Hence, listing those points is a waste of time.

Comment Re:Strong pass (Score 1) 169

Oh, trust me -- Baldur's Gate and Icewind Dale and Neverwinter Nights series are some of my favorite CRPGs ever made, and I regularly replay them.

It just makes me a little sad that there will never again be more. There's a difference between replaying a game you know how it will turn out, and playing a wholly new game with surprises.

Comment Strong pass (Score 2, Interesting) 169

4th Edition killed my interest in D&D. It's a shame that I will apparently never have a new D&D computer game to play ever again, but I'm sticking with 1st-3rd Editions and Pathfinder which feels far more D&D than 4e ever will.

Forgotten Realms was one of my favorite fictional settings, but 4e killed that too, with the Spellplague and jump forward in time and everything, so again, 4e ruined not only D&D but also the Forgotten Realms.

Furthermore, Cryptic is one of my least favorite developers. They make very simplistic games that are all about combat mechanics and hack and slash, with no good story or intriguing characters anywhere in sight.

This is a strong pass. I'd *love* a good Forgotten Realms D&D game, but this provides for none of that. "good" is negated by Cryptic, "Forgotten Realms" is negated by 4e, and "D&D" is negated by 4e.

Comment Re:Iran Opens Its First Nuclear Power Plant (Score 1) 496

Didn't the Israeli invade Palestinian lands pretty much exactly the way the Germans invaded French lands?

No, they didn't. The Israelis took land in defensive wars fought against Arab armies.

That doesn't seem correct to me. As per Wikipedia, "On June 1, Israel formed a National Unity Government by widening its cabinet, and on June 4 the decision was made to go to war. The next morning, Israel launched Operation Focus, a large-scale surprise air strike that was the opening of the Six-Day War."

So it seems the Israelis took land in an offensive war and I thus repeat my question, didn't the Israeli invade Palestinian lands pretty much exactly the same way the Germans invaded France? In both cases it was an offensive war in order to grab land that didn't belong to them. Gaza, Sinai, Golan, West Bank and all that -- they were never mandated to Israel in the founding of that nation -- they were territories they violently seized by initiating a war.

Seems a lot like the beginning of WWII to me.

Comment Re:Why? (Score 1) 178

It also means that you'll be replacing your crew constantly, making everyone a novice in every flight.

Which is a non-issue if we're sending people up for other reasons than to get astronaut training. If we're sending a geologist up to study a comet, then it doesn't matter that he's a novice at astronauting.

Also, exactly why do you think we do manned flights at all? It's precisely to increase the safety to the point where you can sell tourist tickets to celebrities

That may be your reasoning, but there are other lines of reasoning too, that don't require increased safety. For example, sending people up to do construction work on comets. That doesn't require increasing safety to massively redundant levels.

At a 25% level (or pick any other number, really, that you can agree with -- the point is reduced safety from current, not the exact 25% number) if you need 10 geologists up there, you send up 40. If you need 100 construction workers to build a moonbase, send 400. With a different safety percentage the numbers will be different, but the point is we don't need to be absolutely sure that if we send n people, then n people reach the destination. That's just an added excessive cost, and we can do it for cheaper if we accept some losses.

Comment Re:Iran Opens Its First Nuclear Power Plant (Score 1) 496

So it's our role to be the world police? "This country isn't behaving like we want them to behave, so let's slap them around until they act according to Western morals and ethics. Let's beat them into thinking right."

If we force a culture to change, it will just be forced change, and it will revert as soon as we step out. Do we want to have to have a military presence in dozens of countries around the world, watching over them with an angry eye making sure they don't do anything different from us? And where would it stop? Where to draw the line? What kind of offenses are enough to warrant intervention? If we feel entitled to interfere in Iran because their method of execution is stoning, then do we have the right to invade Netherlands because they allow pot smoking? Different countries do have different laws and morals than our own countries, and if we step on the road of trying to "correct" every country out there to think exactly like us, it'll be a road leading to a World War. Do several European countries have the right to invade Texas because Texas has a barbaric death penalty? To "correct" Texas to be "right-thinking"? Does Sweden, with its different privacy laws, have the right to invade the United States to fix the US so that privacy is better protected? Each society has to evolve on its own, at its own pace, and in its own direction.

Comment Re:Iran Opens Its First Nuclear Power Plant (Score 2, Informative) 496

Err, citation needed. As far as I'm aware, Ahmadinejad has very consistently claimed that they are only pursuing civilian nuclear energy, not military nuclear bombs to attack other countries.

If you've got some proof that Iran is saying it's planning to attack other countries with nuclear bombs, I'd sure like to hear it. Otherwise, I call your bullshit.

Comment Re:Why? (Score 2) 178

Why not go back to expendable men though?

One of the reasons manned flights are so damn expensive is because there's redundancy after redundancy to try to do absolutely everything to ensure 99.99999% crew survival rate. By letting crew survival rate go down to, say, 25%, things could get a lot cheaper.

Now, some people are going to say, it's inhuman of society to gamble with the lives of its citizens, but I ask, isn't it ultimately the choice of every *individual* whether or not they want to gamble with their lives? Shouldn't an individual have the right to risk their life if they choose to? Tons of people bungee jump, hang glide, ride motorcycles, parachute, rock climb and so on, taking risks with their lives and society doesn't stop them. I know there would be people who would also choose to risk their lives for the advancement of our spaceflight. Why not take on those people who are willing to volunteer their lives, build some risky rockets, and go to space a lot cheaper.

Slashdot Top Deals

If you want to put yourself on the map, publish your own map.

Working...