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

 



Forgot your password?
typodupeerror
×

Comment Re:Hopefully (Score 3, Interesting) 177

Comparing Fukishima to Chernobyl is ridiculous. Chernobyl basically had no safety systems,

Incorrect. They had safety systems, sadly they were all disabled for the purpose of running the test that led directly to the disaster. The big design flaw at Chernobyl was the large positive void coefficient. Bad idea, made even worse by not explaining this to the technicians running the plant, nor (from what i understand) what a void coefficient was.

Comment Simple, possibly (Score 1) 172

My understanding of this issue is that the liquid hydrogen fuel will be used to carry away the excess heat, on it's way to the engine to be burnt (obviously they're not going to be wanting to suddenly start pouring heat into a tank of superchilled liquid hydrogen).

This craft will certainly NOT fly from normal aviation facilities due to the fack that having tens of tons of cryogenic hydrogen about could turn out to be rather dangerous in a busy airport...

Comment Re:Must past this test (Score 1) 508

Someone has never, ever taken an AI class. Or even an algorithm class dealing with risk. Here's how the calculation actually works (and by the way, that approach is about 20-30 years old).
Every situation is assessed an impact value: driving into oncoming traffic, 0 (very bad); driving into the right ditch, 10; swerving into a legal lane, 50; etc. Every situation is given a set of possible actions, with each action having a probability of being completed successfully. The algorithm multiplies the outcome with the odds of achieving that outcome, and picks the highest value. You can set it up in different ways, but the idea is the same: multiply outcome severity with odds of achieving outcome, pick lowest combined risk/outcome. In your situation, driving off the cliff (which is assumed to be very bad, since the car can see a very steep drop-off with no bottom) is going to have a much worse outcome than hitting the car in front of it. Hitting the car in front of it is guaranteed, but so is driving off the cliff. As a result, the algorithm will make the automated car hit the car in front of it, rather than drive off the cliff.

Not to mention that cars don't sleep, always behave optimally (according to the algorithms in place), and have no blind spots.

Oddly, one thing that seems to not have been considered is that an AI car would have a much much better ability to handle the car well under heavy braking than a human. Surely the 'drive into the oncoming car' outcome would be somewhat offset by the fact that the computer would pretty much instantly apply the maximum braking force it thinks the ABS equipped car can manage whilst performing a manouvre, at the same time as performing it, thus massively reducing the energy of any impact?

Comment The answer is simple (Score 1) 238

If the school sees value in their Faculty having contact with their students on social networking sites then the school needs official presence on the social networking sites. I dont know if it is possible for a teacher to have, say, their own personal account, and for them also to have the use of an official, monitorable, account tied to their school, and representing the position they hold at the school. the result would be that for example an English department teacher would have an official English teacher #3 (maybe give them better titles than that, cant think of one without more coffee) account.

  My rationale for this runs thus: Having their tutors available on the media with which the children interact the most and the freest would mean that their teachers are much more approachable/available to assist in that parts of their education or lives which may need the most assistance. Also, this would be a two way street, and teachers would be able to use the official account that they have been assigned to communicate to their pupils en masse or individually as required whilst maintaining a both a safeguard against abuse, and a firewall between the teachers' private lives and circle of social contacts, and their pupils. Using the school's own website for this would not be as beneficial as the kids won't already be acclimatised to using that.

Comment Re:Few to admit it, but a lot of parents teach thi (Score -1, Flamebait) 1208

When I was a kid, I had a liberal stepdad and a conservative dad. I always thought my dad was just a racist who didn't know what he was talking about. At one point we had it out and so I left my lilly-white hometown to to live with my mom and stepdad in what happened to be a predominantly black school district (which my liberal stepdad considered a great opportunity for me to learn a valuable cultural lesson). After I got a harsh lesson in anti-white racism by getting my ass kicked for about the 10th time at said school, .

How much of your getting an ass kicking was about your attitude at that point?
I would postulate that in your case your 'conservative' father had already sewn the seeds of prejudice in you, and that your difference in skin colour was massively overshadowed by the colour of your attitude towards others.

Comment Gamestops problems (Score 1) 351

Gamestop have also taken a perfectly good download based games portal (Impulse) and removed any semblance of customer service and putting the customer first. Have been having massive problems trying to buy ONE title from their service, and they have been of zero help trying to resolve it. I have now given up and have resolved to never give Impulse any more money. Way to take a smallish games portal and trash it's customer base Gamestop!

Comment I'm not 100% certain (Score 1) 272

But I think that this gag may have been due to the French surrender to Nazi Germany in 1940. The French government were offered a way of not having to surrender (in my opinion it was an insane idea they were offered) but chose instead to capitulate. It is indeed daft to use that one instance to paint a picture of the entire history of French military power.

Slashdot Top Deals

THEGODDESSOFTHENETHASTWISTINGFINGERSANDHERVOICEISLIKEAJAVELININTHENIGHTDUDE

Working...