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.

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...

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?

Information about what you are eating is what the protection of consumers that the EU is keen on is partly about.

There's a whole 'other' market out there for mattresses that are...

You CAN do both!
however there are consequences for both, too. YMMV of course, and I dont think that scat fetishists are entirely precluded from becoming teachers...

I agree on the usefulness of Failbook, however The Kids are into it nowadays. The Kids are in fact a teacher's job, so the issue is relevant.

and a nonlow uid is not the sign of being wet behind the ears. Its not like low uid bigotry is anything new on slashdot however...

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.

I suspect it was the section where he implied that teachers are not productive members of society, and that they dont also pay taxes.
The anti union rhetoric in your post gives away your viewpoint, by the way.