Re: Supernova Fusion
> I think (but may be wrong) that stars normal fusion process can create atoms up to iron[…]
You're not wrong.
Fe-56 to be precise.
140 posts • joined 19 May 2012
> I think (but may be wrong) that stars normal fusion process can create atoms up to iron[…]
You're not wrong.
Fe-56 to be precise.
> Also, FWIW, Chrome for example ain't exactly svelte once you add up all the various processes' RAM use.
That will seriously over count on virtual memory based systems because on such systems there will be significant sharing.
On contemporary OSs memory usage is a not a simple topic, there is no simple way to count the memory usage of even a single process. For a start what do you mean by "memory usage": working set, commit, private allocation, address space allocation, or …?
> machine's much-better-than-a-ZX-Spectrum keyboard
There is damning with faint praise, and then there is this statement.
Is it possible to have a worse keyboard (outside of some ruggedised niche)?.
> It is not clear from the blog whether this is a custom version of SQL Server 2014
> used internally by Microsoft, or whether it is the production release.
No it isn't a custom internal version, but the SQL Server used in Azure is not the same as the version you would deploy locally. See Books Online reference for lots of differences. That said they are mostly the same.
> anyone running SQL Server 2014 in SQL Server 2014 compatibility
> mode is likely to suffer issues with massive over-allocation of memory to
> queries and stored procs.
"is likely": no, not likely. Otherwise current users of SQL Server 2014 (which has been around now for almost two years) would have noticed.
However you could hit the same bug: in which case raise a support issue to get early access to the fix.
A much more detailed write up:
The latter includes some rather low level details...
> I appreciate that was probably very old code... but you do realise that changing case in ASCII is just a bitwise operation?
Only if it is truly ASCII: 7 bit encoding, nothing accented.
Once you need to deal with wider encodings or outside the USA then it breaks down.
Even if all the characters are unaccented it will not work (see Turkish I Problem).
I don't know: give users HTML5 and then they'll also demand TLS for pages with a login.
And indeed we should have these things.
Perhaps when you catch up with the rest of us in 2016? :-)
> That's one of the very few XKCD strips that confuses me
> the internet grew faster than any technology has ever grown in the history of man and yet it never failed, faltered or fell over
It may never have failed but it has certainly faltered.
I can't be the only one who remembers the "Great Internet Worm" of 1988, when some 40% of the hosts online were taken out.
> Does that mean that, due to relativity, there is a tangible time difference between the inside and outside of the disc?
Yes, since any velocity or space-time distortion will give a change. But I doubt it will be much.
Assuming the outer edge of the data area of the platters is 3", I get a linear speed of 21.6m/s.
Which gives a adjustment, of special relativity, of 0.0026%.
However, this is non-linear motion so general relativity applies. Which reverses the effect. But I've no idea by how much.
> I'm 'writing' using a computer font, I'm stuck with a single set of characters
No you are not.
Look up "Font Stylistic Sets": a single (Open Type) font/typeface can include multiple variations of each glyph; which can then vary contextually (shape is influenced by surrounding characters).
Unicode supports this with Variation Selectors.
Even Word (recent versions) supports this. Select a suitable font (eg. Gabriola) and use the Advanced tab of Font settings to change the stylistic set. Compare sets 1 and 7 for obvious differences.
> Also, the chart shows shipped capacity
Someone has a spin they want to push, and has designed a chart to help that spin.
Consider units would have the 8GB section an eighth the height and the 10GB section a tenth. The latter would essentially disappear.
That said, net revenue would perhaps be a more useful scale but unlikely any of the companies publish sufficiently detailed sales data.
> Depends on what Microsoft includes in Cloud Revenue - these figures are quite easy to manipulate by any party.
Exactly. I seem to recall reading on these pages that MS includes Office 365 (to work Amazon has no equivalent).
However, like much in accounting, where the lines are drawn is completely arbitrary. If MS is using Office 365 to fund Azure development by making use of it, then so be it. In much the same way Amazon started AWS based on its own internal need for computing resources.
> get messed up by patents and trade secrets
Patents: no, they're published anyway.
Trade Secrets: if the company goes bust then that's no loss; if they choose to end support then they have chosen to reveal those secrets.
Ie. it is still their choice.
> but there are two ways round this :
And the third, and well established in the business software world: escrow. If the vendor goes out of business customers get all the design and software information, including source code.
I would push for more: either the manufacturer must fix security issues in a timely manner (eg. 7 calendar days for remote code execution), or make the entire device – hardware and software – open source (including any tools required to maintain and update it).
So either update yourself or let others do it,
> Have an upvote, but I would never allow my connection to AD to
> have the achilles heel such as needing an internet connection.
Hence the approach of running one AD tree in Azure and another in the office(s) with a trust relationship between them.
This is only worth it when you have enough resources in Azure that the centralised authentication, authorisation, and group policy justify the extra infrastructure (much less than previously) and cost (including someone to do the admin).
> It would take more time to crack MD5 using current technology than[…]
No, it is done, and has been done, repeatedly. Creating a second document with the same MD5 hash requires small resources. This is old news.
Hence dropping support for MD5 in certificates across all crypto libraries.
I suggest you update your crypto knowledge from the 90's.
> Eset, just get Eset nod32, not the cheapest but its worth it..
Please no. Thankfully getting rid of it here.
Lots of random "ESET needs attention" popups without any information about what triggered the pop-up. Log full of "Could not download updates" but no error message.
Its detection might by good, but its UI and error handling is crap.
> issued for non-existent domains
Even better would be to use an internal CA that is not trusted (by default) by browsers.
Thus anyone else seeing the certificates would get an error.
> Is it difficult or something to have Outlook say "this email has more addressees than your default allows. Are you really sure you want to send it?"
In 2013 it is the default (a warning certainly appears with a mailing list with 21 entries, so the limit is below that).
Equally in Exchange you can apply an ACL to mailing lists, so only selected users can send to the bigger lists (been true since at least Exchange 2003).
Probably one of those that have a deficiency in gravitas.
It could be worse, they might be nice to us.
Maybe the shoe event horizon won't be so bad?
> Oh my, a $1.2 million settlement!
Please read the article again.
$1.2m in /legal fess/. The settlement amount is not disclosed.
> most spiteful trolls
You really don't get out much do you.
> abc.wtf was registered by Microsoft themselves
While the IP points to an MS server (try visiting http://abc.wtf), the registrant is a registrant protection service (ie. proxy to avoid putting you personal details into the whois database).
The reverse DNS just reflects the resolution of the domain.
Its nameservers are also not MS (primary on Rackspace).
against typography this should be immediately ignored.
That horror in the diagram.
Given i7-9xx (1st gen i7's) had a TDP of 130W, and current generation AMD CPUs also go well over 100W how to dissipate that much heat is nothing new.
(Looking at Sky-Lakes to replacement of my ageing i7-920: but will wait on the mainstream variants, however is does look like 2x16GB for memory is viable price wise.)
> Nope the explosion creates Lithium
No, the explosion spreads the lithium, Lithium is a normal product of late life star fusion.
As a stars hydrogen is consumed it is not enough to sustain the star, gravitational collapse leads to high core pressure and temperature allowing higher order fusion to take place. If the star is massive enough this can go as far as creating iron. (The latter stages of this happen in the final minutes before the star explodes as only stars massive enough to end as supernovae take fusion that far.)
Fusion into heavier elements is endothermic so cannot sustain the star, these elements are only created in a supernova explosion itself.
> I know no modern OS that still have this huge stupidity set by default: auto-executing of removable storage. Apart from Windows.
Windows does not either. Unless you are running XP, *and* have not done the simple configuration change. XP always supported that configuration setting so its existence is old (more than a decade) news.
I suspect other commenters here are right: the diagnostics tool is just a thumb drive and relies on the OS to execute it, rather than having a secure mechanism,
But then its not like the safe and lock industry have a history of security by obscurity is it.
> they have more control over the updates, and can pick and choose.
More than "complete and total"? WSUS gives central control for all (supported) versions of Windows: server or not.
If you want control run Pro edition and use the tools provided. If you want an easy life leave it on automatic. I would rather have all those potential botnet nodes, sorry, home users, up to date thank you.
> but wanted his company to do an audit.
The bosses had asked him to check things: makes a big difference having permissions even if the local branch staff do not know.
The teams operate all around the world: uploading data from those events rather than snail mailing a memory stick?
I'm assuming this is all part of the process of preparation for LOHAN.
Isn't a proper mission control part of any (near) space mission?
> It has a 5x5 LED display. That's an ideal form of output. Anything more sophisticated and they'll play Minecraft on it instead of doing their ICT homework.
Minecraft could easily /be/ their ICT homework: http://services.minecraftedu.com/wiki/ComputerCraftEdu
> Ground-up restos are spendy, true, but it's still far cheaper than purchasing a new car.
Does that include accounting for your own time at a decent rate?
I doubt it.
> Strustrupp didn't want C++ to C backward compatibility.
He certainly didn't say that in "Design & Evolution of C++" which goes through the early stages of C++'s evolution from C via "C with Classes".
> Why are people still writing ordinary C
Because they are targeting platforms without C++, or in case where it is (at least perceived that) C++ is unsuitable (too much dynamic memory, polymorphism, ...: too hard to predict exactly what happens). Eg. consider code for a low power embedded system running on a PIC controller with memory measured in hundreds of bytes (or less). And then there is inertia.
> Yes the survey is inaccurate
Of course it is. As every such survey (whether COBOL marketing from MicroFocus or a survey of job advertisements to name two that regularly generate headlines) it is massively biased because of its selection of data sources.
> Chrome seems to grab one or two[fixed] 50MB process per tab.
"Seems" is the right term. There is a lot of shared working set across those processes (and others).
Here, one Chrome worker process has a working set of some 55MB, but of that almost 22MB is shared.
Just adding up the working set of processes will always end up double counting memory usage in Windows.
TL;DR: Memory in virtual memory systems is complicated. Almost every measure is not what you think it is.
> "We are learning that chaos may be a common trait of binary systems,"
Someone needs to go back to school. The Three Body Problem has been known as long as gravity: Newton covered it in Principia…
> How the hell are we going to get the consumer market[…]
That is far too complicated. (And by "far" I mean: distance to the edge of the observable universe far, not round the corner to the chemist.)
Any solution needs to be easy enough that no user interaction is needed, and cheap enough that it becomes the default.
> Can I be famous now please?
If you were original then maybe. But you are not: https://xkcd.com/538/ hence no.
> mythbusters [...] fast machine gun to cut something solid in half
Cut down a tree is the usual aim.
Been done in other programmes as well.
Not cost efficient or time efficient. But does show why one does not want to be in front of such weapons.
> why are these sites not using[…]
Content separated from structure (eg. CMS) could well mean no one person controls all the markup.
(And there is always content relative links, eg. //code.jquery.com/jquery-1.11.2.min.js, for content from other domains.)
> Business knowledge is lost in email. It must be properly filed on a network location, and email only serving links to the latest version.
And now your sales team wants to send a quotation to that potentially very lucrative customer.
Not everyone is connected to the local network ...
And note even IE6 (XP SP3/2003 SP2 and above) supports SNI. (Not in the original versions of those OSs, but it was added later.)
If you have clients from before those relics then it is quite possible even assuming HTTP 1.1 will be a problem, so you have to have a unique address even when unsecure.
Certificate providers are appearing with ever cheaper (some promising free) certificates.
(This is covered in the linked discussion thread.)
While they won't be EV certificates, as the underlying drafts do consider levels of security, that aspect is covered.
So your "About Me" site gets a free certificate, but as you are not selling anything you are only looking at providing end to end integrity rather than significant identify validation.
At the other end of the scale a medical site or retailer does need to spend some money on their identity. But if they are not willing, how secure is anything they do?
> It's also about a thousand times smarter and more interesting.
Talk about damning with faint praise…
There is already a standard for it: RFC 3251 "Electricity over IP", but your a couple of weeks out for that.
Or perhaps, hoist by their own petard.
> Each year flash costs between 162X and 53X more to make per TB than disk
The graph clearly says cap-ex. But the cost of manufacture is op-ex (eg. staffing), materials and a /proportion/ of cap-ex.
It will be more expensive, but nothing close to the cap-ex multiplier because the other costs will not be anything like as proportionately as big (otherwise flash would already be far more expensive than it is reative to spinning rust).
> High-end storage: […] Frankly, unless you already have a pile of Fibre Channel disk shelves then go for SATA.
I think someone meant "SAS" there, otherwise the next sentence – backward compatible with SATA – does not make sense (and who does high end storage on SATA?).