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Kyle Moyer wrote: 10:00AM is the beginning of the eleventh hour of the day, but 11 hours have not elapsed. The clock measures elapsed time.
Yup. I have considered that. That makes perfect sense: in the 24h clock, "01:00" means "1 hour elapsed since the start of the day", so does it in the 12h clock notation.
But, unfortunately, it breaks down during the first hour after mid-night and mid-day: "00:43" does mean "43 minutes elapsed since the start of the day" in the 24h clock notation - the 12h clock expresses this time as "12:43 AM" though.
You can interpret this as "12h and 43m elapsed since mid-day of the previous day", but 'AM' means "this is a time before mid-day of the current day". So, the notation "12:43 AM" mixes two different frames of reference.
Kyle Moyer wrote: You just have to understand that [...] humans don't start naturally counting at zero.
I get your point, but when I think about it, there's more than that: the original 12h clock notation probably comes from a time when we were hardly able to accurately tell the hour of the day, much less the minute. Also, people talked of the current time in terms of 'this is the third hour', referring, vaguely, to some point in time after the second, but before the (end of the) third hour had passed. Back in that time, you only ever referred to the 1st through 12th hour before mid-day (AM) or after mid-day (PM) - there was no inconsistency. Yet.
The 'problem' with the 2x12h notation probably started arising when people began measuring time between hours: to express that half an hour has passed since mid-day, in a time when '0' wasn't used or even invented, what people said instead is that 'half an hour has passed since the twelfth hour (of the morning)'. This little extension seemed natural enough, so nobody spotted (or cared about) the resulting inconsistency.
At least that's how the current notation might have come about - just a theory...
GOTOs are a bit like wire coat hangers: they tend to breed in the darkness, such that where there once were few, eventually there are many, and the program's architecture collapses beneath them. (Fran Poretto)
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AM comes before PM in the alphabet and also in the day
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But at midnight AM comes after PM.
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Only if you count over days, which you shouldn't
My logic is infallible
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Sander Rossel wrote: My logic is infallible Well at least it's logical, Captain.
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I just really wanted to use that word
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Just looking at one of your blogs at random and found a nice piece of LINQ that I actually understood.
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Thanks!
Personally I'm a big fan of understandable and readable code, be it LINQ or something else
Unfortunately understandable and readable are two pretty obscure programming paradigms and only few programmers adopt them as part of their tool set
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You can always google "what time is it in israel" or "what time is it in new york"
Or anywhere else for that matter.
Marc
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12 PM is noontime and 12AM is the end of one day which also known as 24:00. So, 19:00 is 7pm or 7:00 night.
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12 PM is noontime and 12AM is the end of one day which also known as 24:00. So, 19:00 is 7pm or 7:00 night.
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Time is an illusion. Lunchtime doubly so! (HGTTG)
I am not a number. I am a ... no, wait!
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I need the knowledge to build a secure system that will be facing the internet at some point. I'm still in the early phases of development now that I have finished work on the data model and I want to shift focus to security and incorporate it into everything going forward. The book is from Microsoft and totals over 900 pages.
Improving Web Application Security: Threats and Countermeasures
The overall architecture I'm going for is:
Internet/Intranet -> Service Broker -> Database
Internet will be a web site that needs to have login capabilities and secure features
Intranet will most likely end up a mix of internal websites and job specific windows applications
Service Broker will handle all data access to and from the database
Database will be SQL Server
-Edit- Just notice that the book was written in 2003. Are there other resources a little more current?
if (Object.DividedByZero == true) { Universe.Implode(); }
modified 25-Feb-16 13:41pm.
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That's for you to decide.
Read it and let us know
If it's not broken, fix it until it is
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Being that I still consider myself pretty clueless when it comes to implementing a secure system, I wouldn't know good practice if was written right in front of me. I know about how to secure databases, hashing/salting passwords, and the principle of least privilege but there are a myriad of other angles I haven't even seen yet.
if (Object.DividedByZero == true) { Universe.Implode(); }
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Ya. Bu it's always hard to tell if a book is decent until you're into it.
If it's not broken, fix it until it is
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Actually, even though that book is quite old, it seems to be a good starting point for:
Security Architecture
I say it that way, because if you are looking for an overview of how malicious software and people attempt to take over your web site then the book is a valuable resource.
Even the section on Securing Your Web Server is still quite relevant because it offers explanations of how attacks occur and how you an protect from them.
Summary
If nothing else, you'll get a good idea of what you need to do, then it'll be much easier to search for specific ways (software, hardware, etc) which will help you to do that work.
Obviously, the book being older is going to mention outdated resources but the overall plan from the book is good.
Again, it's about Security Architecture.
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That's good. I really don't want a system that I am architecting to end up in the news
if (Object.DividedByZero == true) { Universe.Implode(); }
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My one, my only, and my last (forever) experience with E-Books convinced me to let that market change before I spend money that way again.
If you can navigate the E-Book minefield better than I can, you have my respect and admiration.
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"A spectacular new image of the Milky Way has been released to mark the completion of the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL). The APEX telescope in Chile has mapped the full area of the Galactic Plane visible from the southern hemisphere at submillimetre wavelengths — between infrared light and radio waves. This is the sharpest such map yet made, and complements those from recent space-based surveys. The pioneering 12-metre APEX telescope allows astronomers to study the cold Universe: gas and dust only a few tens of degrees above absolute zero." [^]
«In art as in science there is no delight without the detail ... Let me repeat that unless these are thoroughly understood and remembered, all “general ideas” (so easily acquired, so profitably resold) must necessarily remain but worn passports allowing their bearers short cuts from one area of ignorance to another.» Vladimir Nabokov, commentary on translation of “Eugene Onegin.”
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Nice
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Quote: Nice
You said it!
Get me coffee and no one gets hurt!
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That thing is just creepy...
There are two types of people in this world: those that pronounce GIF with a soft G, and those who do not deserve to speak words, ever.
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Can't have that creepy thing as a colleague
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