A mole of X
As I understand it, the definition of "mole" as a measuring unit is simply a fancy way of saying "In a mole of X there are 6.02#### * 10^23 units of X".
As always there's a relevant XKCD.
44 posts • joined 3 Oct 2007
In my country you can generally cash cheques, provided that you bring them to the branch where the issuer's account is, the amount isn't too high and you show your ID. If there's any doubt, the cashier can verify via phone with the issuer.
Source: that was my job until a couple of years ago.
Assuming it was a same-named file in a different directory, it used to be possible; up to Excel 2010 you could do it by launching another instance of Excel.exe and opening the second spreadsheet in there with file-open. You had to switch by alt-tab instead of control-tab, but it was no biggie.
Sadly on Office 2016 applications are limited to a single instance, so this workaround is no longer possible...
>> (This is happening without TTIP.)
Yes, but at the moment McD cannot sue the city using as a venue an arbitration panel where "judges" are mostly nominated by USA-dominated international trade/financial bodies.
With the ISDS provisions in TTIP and CETA the odds are heavily stacked against non-U.S. entities.
Doesn't travel too well through some types of cloth like the aluminium-laced one in my ski suit, for example. Also, the human body contains a lot of water so – depending on where you're keeping your smartphone – can block the transmission, or make it draw much more power than a wired headphone.
We can't, because shuttles haven't got solar panels. Their electricity is provided by fuel cells, which entails their max autonomy is about two weeks; in the '70s energy efficiency wasn't a major project consideration for crew-carrying space vehicles.
A shuttle could probably be made to work with a hookup to the ISS power systems, but then its usefulness as lifeboat would be moot.
... everybody says that, but there are two problems to solve before: how to build the things in the first place (as it is now with only 7-8 layers, you already get enough duds ) and how to cool transistors in the centre of that structure.
@auser: silicon dioxide is on the way out, high-k dielectrics based on hafnium are all the rage these days.
Methinks the ones pushing for this change do not actually use browsers; otherwise they would realize the only address people have to type - once - is that of their favorite search engine.
They're just bitching about the last two letters of a URL; for all the other elements it's already possible to use non-roman alphabets. To gauge the level of success it's met with webmasters, just run a search on baidu.cn, the most widely used Chinese search engine, for 中国 (=China) and see how many hits you get without a roman URL (hint: the number is between -0.5 and +0.5).
Unless those governments make it mandatory, I don't see many sites will be appearing under those domains; apart from malicious ones that is: with all likelihood, the actual implementation will be through punycode, so that a "http://evilsite.ru" will become an instantly recognizable "http://xn--vilsit-2ofg.xn--p1ag".
Well, at least it will cause a surge in click on dodgy links... Just what the doctor ordered for the Internet.
Regarding why everyone is so cynical about fuel cells, it's because it's so hard to store hydrogen in meaningful quantities. Its weight/volume ratio at standard pressure is abysmal, when liquefied it will boil off in a few days even in the more heavily insulated container (thus preventing you from keeping your expensive car in an enclosed space), the alternative forms of storage - metal hydrides - at the moment do not compare well with high pressure tanks (that give ~200 km of range and are to all effects a bomb behind your seat)...
For more details, see http://en.wikipedia.org/wiki/Hydrogen_economy#Storage .
There was a good coverage of the technical/economical issues of hydrogen in a 2005 issue of Scientific American, and to my knowledge there haven't been any breakthrough in the meantime.
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