uvdiv

41 ms·

211.
by uvdiv 14y ago
Why did they wait until 2013 to tax something that happened in 2002? That reflects poorly on Denmark.
212.
by uvdiv 14y ago
If we shut down the losers and actually invested the profits from the Northeast Corridor back into that line, Yglesias wrote up this exact argument this week [1]. The Northeast Corridor profit he dug up [2] amounts to all of $136 million/
213.
by uvdiv 14y ago
These cars are limited by aerodynamic drag power... I mean future self-driving cars travelling at bullet-train speeds. For these, losses are dominated by drag.
214.
by uvdiv 14y ago
You'll get both, because they're complementary. Self-driving cars will cut the economic cost of electric vehicles: autotaxis will replace private ownership, and their high upfront costs will be split between many users [1]. Conversely, self
215.
by uvdiv 14y ago
Also: the physics of high-speed cars makes the concept of cars traveling as fast as bullet trains totally ridiculous. The fact that a car is self-driving doesn't change the physics of tire/road friction. Friction losses aren't significant
216.
by uvdiv 14y ago
In 2030-2050, passenger rail will be obsolete. Self-driving cars will surpass them on every metric. After AI* obsoletes physical safety as an engineering problem, cars will shrink to tiny, weightless pieces of plastic most closely approxima
217.
by uvdiv 14y ago
Couldn't they think of a more prejudicial title? The bill's substance is "plaintiffs to pay defendants". Plaintiffs are not trolls. Defendants are not innovators. Unsuccessful lawsuits are not frivolous (article's opening paragraph). And Te
218.
by uvdiv 14y ago
Not on topic, but the intended target was executed today in China, on live TV in part. http://www.telegraph.co.uk/news/worldnews/asia/china/9901831...
219.
China considered drone assassination in Myanmar(nytimes.com)
1 points by uvdiv 14y ago|1 comments
220.
A Revolutionary Marketing Strategy: Answer Customers’ Questions(nytimes.com)
4 points by uvdiv 14y ago|0 comments
221.
by uvdiv 14y ago
No, it's far too big.
222.
by uvdiv 14y ago
This is hyperbole. (no pun) "Comet C/2013 A1 may fly past at a very safe distance of 0.008 AU (650,000 miles)," O'Neill wrote, "but to the other extreme, its orbital pass could put Mars directly in its path.
223.
by uvdiv 14y ago
Probably not, C-F bonds are extremely stable, so perfluoro compounds are biologically inert. The datasheet says they made some animal inhale 10% (!) Novec gas for 4 hours without effect. http://multimedia.3m.com/mws/mediawebserver?mwsId=66
224.
by uvdiv 14y ago
I think I was wrong. There's only one coolant (or coolant family), but several server-cooling systems . There are both liquid and phase-change systems, and I'm not sure which this is. 3M is the chemical firm which developed the coolant ("N
225.
by uvdiv 14y ago
This should be comparably costly, it's also a perfluoro compound. C2F5-(C=O)-CF(CF3)2
226.
by uvdiv 14y ago
I have no knowledge on this subject, but - According to wikipedia [0], fluorinert as used in the Cray was a single-phase coolant (no boiling). It needed fluid pumps and chilled water, at high energy cost; this phase-change solution avoids b
227.
by uvdiv 14y ago
More details: (press release) http://solutions.3m.com/wps/portal/3M/en_US/NA-DataCenters/D... (technical data) http://solutions.3m.com/wps/portal/3M/en_US/3MNovec/Home/Pro... It's a phase-change system (the coolant boils). That's what t
228.
by uvdiv 14y ago
Some briefing materials are already up, http://www.nasa.gov/mission_pages/nustar/news/telecon2013022... Spoiler: it's the first measurement of a black hole spin.
229.
NASA live streaming announcement on black hole observations [video](nasa.gov)
60 points by uvdiv 14y ago|12 comments
230.
by uvdiv 14y ago
The cost of titanium is mostly due to refining -- chemically processing TiO2 into metallic Ti. Titanium the element is very cheap and very common; titanium the refined metal is expensive. Supply isn't an issue.
231.
NASA livestream: X-ray observations of black holes [at 18:00 UTC](jpl.nasa.gov)
1 points by uvdiv 14y ago|0 comments
232.
by uvdiv 14y ago
A comment explaining US law on this: http://pipeline.corante.com/archives/2013/02/26/standard_of_...
233.
by uvdiv 14y ago
Before bringing a new drug to market, companies have to conduct clinical and field trials which usually requires testing it against others already in the market. Under the current system, carrying out assessments using patented drugs is an
234.
UK clinical trials can't compare drugs against patented alternatives(telegraph.co.uk)
7 points by uvdiv 14y ago|4 comments
235.
by uvdiv 14y ago
They'll lobby for and obtain exemption, maybe a permitting process. They're not interested in making this available to the general public (on the contrary, they could benefit from inhibiting their competition). --cynic
236.
Titanium at 1/10th the cost(economist.com)
2 points by uvdiv 14y ago|2 comments
237.
by uvdiv 14y ago
There're many threads about this on HN. Here's one around an Economist feature: http://www.economist.com/node/21559618 ( http://news.ycombinator.com/item?id=4589291 )
238.
by uvdiv 14y ago
I actually submitted this story as "Curiosity robot drills hole in Mars rock. Unprecedented in history". HN altered it to match the press release.
239.
by uvdiv 14y ago
It's meant to be injected underground.
240.
by uvdiv 14y ago
One definition of "fire" demands "oxygen from the air": https://www.google.com/search?q=define+fire&oq=define+fi... The fuel here doesn't react with air, but with a solid oxidiser (Fe2O3). It's a solid-solid reaction, whose products a

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