Ask anyone in the publishing industry, and chances are they will tell you that the most readable font available is Courier (in any standard variety) 12pt Regular
Which is why it is so often used for books, newspapers, magazines... oh, hang on...
On my Mac I run Safari, IE, Mozilla and Opera. Opera is the slowest to load, taking five times longer than Safari, despite being half the size. It also renders Opera's own site so slowly as to be unusable - I did a comparison the other day, and Safari rendered the site at least four times faster. Opera even beachballs for half a second when hovering over a link requires re-rendering (as all the links at Opera.com do). The only reason I ever run it is to test CSS comptibility, where it is good - although its JavaScript/legacy DOM support is abominable.
A friend of mine downloaded and used it; after approx. 2 minutes, it produced the biggest core dump he'd ever seen. If you're keen, you can get it here.
What do you expect your browser to do when you send it a mime header text/html? It can be called.pdf,.txt,.whatever-you-like, but if the mime type is text/html, I'd expect the browser to do its best in running it
That is not the nature of the vulnerability. IE displays a dialog saying "You are downloading the file:" followed by the filename. That is where the spoofed filename is displayed. The danger is that, if you are expecting, for example, a PDF which you won't want to keep, you will just click "Open", expecting it to start Acrobat Reader. However, once the file is downloaded, its real filename is that of an executable, which runs merrily away, doing whatever it wishes.
if you tried to divide by zero the machine would just keep chugging away forever.:)
I still have a Sinclair Cambridge which will do this. For some reason that I've never bothered to fathom, about one time in ten it will count at about 0.8Hz, complete with decimal point and four decimal places. The other nine times, the figures just turn over so fast, the battery runs down. (Those LEDs were power-hungry.)
I always liked the idea of having a calculator that tried to return Infinity as the answer to a division by 0. More fun than someValue.isNaN(); somehow:-)
I've also seen something in the news about these snapping posts, but given that the local council here can't manage to fill in all the potholes in the roads, despite council tax increases way above inflation, I doubt they'll be spending money on new lampposts, no matter how many lives it might save:-(
most street lights are meant to snap off their bases if enough force is applied
Not around here they're not. I saw a car go into a lamppost at about 20mph a few years ago; the lamppost is still there.
And some years before I saw the lampposts outside my parents' house being moved back so the pavement (sidewalk) could be widened. Thick metal tubes going at least 6 feet (2m) into the ground aren't about to snap.
All right, I give in. I was led astray by the fact that, when it featured in a question on 15 to 1, its shape was referred to as "a regular curved heptagon". Damn you, William G Stewart, I'll never believe another word you say:-)
A polygon is a closed plane figure with n sides. The sides don't have to be straight, nor does the figure even have to be convex. It has seven sides, so it's a heptagon.
In fact as you point out, the curvature of the sides gives it the property that the centre of curvature is the opposite apex of the coin, which allows it to roll - although in my experience it's more likely to roll down a drain than actually be accepted by the ciggy machine in my local.
It depends on whether the paper has been bleached or not. Most commercially available paper is bleached (to make it nice and white rather than wood-pulp coloured), but banknote manufacturers almost exclusively use expensive papers which are unbleached, and thus do not fluoresce. It is possible for the ordinary punter to source unbleached paper, but it's expensive and you may have to hunt through swatches from around the world to find a commercially available paper of the right thickness and surface texture.
That's also how those counterfeit detector pens work: an iodine compound in the "ink" reacts with the bleach left in the paper to produce that nasty brown smear.
You can change old notes at a bank in most cases. If you get one so old that you need to take it to the Bank of England itself (which will change them no matter how old) then you may want to stick it on eBay instead:-)
...does not compare the entire bill, but rather certain flag markers
So hopefully, with a little trial and error, one could simply use a piece of paper to mask out some of the marker, scan, move the mask, scan, repeat as necessary, and then stitch the images back together. As others have pointed out, you may have to do the printing with the Gimp or some such, but it's a small price to pay:-)
(This is similar to a technique used by a British counterfeiter of US currency in the 70s, except he had to overlay dozens of pieces of negative to make his plates.)
Slashdot Mirror
Did you try googling for it?
Unless he's in California, in which case it's definitely too early at 8:49am :-)
Which is why it is so often used for books, newspapers, magazines... oh, hang on...
Did they use wider typewriters instead?
On second thoughts, don't :-)
Strangely enough, they're not:
On my Mac I run Safari, IE, Mozilla and Opera. Opera is the slowest to load, taking five times longer than Safari, despite being half the size. It also renders Opera's own site so slowly as to be unusable - I did a comparison the other day, and Safari rendered the site at least four times faster. Opera even beachballs for half a second when hovering over a link requires re-rendering (as all the links at Opera.com do). The only reason I ever run it is to test CSS comptibility, where it is good - although its JavaScript/legacy DOM support is abominable.
Don't forget, they used to do it for Solaris too!
A friend of mine downloaded and used it; after approx. 2 minutes, it produced the biggest core dump he'd ever seen. If you're keen, you can get it here.
That is not the nature of the vulnerability. IE displays a dialog saying "You are downloading the file:" followed by the filename. That is where the spoofed filename is displayed. The danger is that, if you are expecting, for example, a PDF which you won't want to keep, you will just click "Open", expecting it to start Acrobat Reader. However, once the file is downloaded, its real filename is that of an executable, which runs merrily away, doing whatever it wishes.
It's got nothing to do with mime types.
I still have a Sinclair Cambridge which will do this. For some reason that I've never bothered to fathom, about one time in ten it will count at about 0.8Hz, complete with decimal point and four decimal places. The other nine times, the figures just turn over so fast, the battery runs down. (Those LEDs were power-hungry.)
I always liked the idea of having a calculator that tried to return Infinity as the answer to a division by 0. More fun than someValue.isNaN(); somehow :-)
Look at the chart. Win98 is at the top of the legend ; Windows XP has the greatest usage at 42%.
Doctor Who started in 1963.
I've also seen something in the news about these snapping posts, but given that the local council here can't manage to fill in all the potholes in the roads, despite council tax increases way above inflation, I doubt they'll be spending money on new lampposts, no matter how many lives it might save :-(
The government?
Not around here they're not. I saw a car go into a lamppost at about 20mph a few years ago; the lamppost is still there.
And some years before I saw the lampposts outside my parents' house being moved back so the pavement (sidewalk) could be widened. Thick metal tubes going at least 6 feet (2m) into the ground aren't about to snap.
YLMV...
All right, I give in. I was led astray by the fact that, when it featured in a question on 15 to 1, its shape was referred to as "a regular curved heptagon". Damn you, William G Stewart, I'll never believe another word you say :-)
I never said it was a regular heptagon :-)
A polygon is a closed plane figure with n sides. The sides don't have to be straight, nor does the figure even have to be convex. It has seven sides, so it's a heptagon.
In fact as you point out, the curvature of the sides gives it the property that the centre of curvature is the opposite apex of the coin, which allows it to roll - although in my experience it's more likely to roll down a drain than actually be accepted by the ciggy machine in my local.
Here endeth the lesson on the ten bob bit :-)
And then they get jailed.
Do you have a URL for that one? It sounds too good to be true :-)
<pedantic>Actually the 50p is a heptagon.</pedantic>
In the UK, you don't have to surf - on a day like today, your notes go soggy as you walk down the street :-(
It depends on whether the paper has been bleached or not. Most commercially available paper is bleached (to make it nice and white rather than wood-pulp coloured), but banknote manufacturers almost exclusively use expensive papers which are unbleached, and thus do not fluoresce. It is possible for the ordinary punter to source unbleached paper, but it's expensive and you may have to hunt through swatches from around the world to find a commercially available paper of the right thickness and surface texture.
That's also how those counterfeit detector pens work: an iodine compound in the "ink" reacts with the bleach left in the paper to produce that nasty brown smear.
You can change old notes at a bank in most cases. If you get one so old that you need to take it to the Bank of England itself (which will change them no matter how old) then you may want to stick it on eBay instead :-)
So hopefully, with a little trial and error, one could simply use a piece of paper to mask out some of the marker, scan, move the mask, scan, repeat as necessary, and then stitch the images back together. As others have pointed out, you may have to do the printing with the Gimp or some such, but it's a small price to pay :-)
(This is similar to a technique used by a British counterfeiter of US currency in the 70s, except he had to overlay dozens of pieces of negative to make his plates.)
According to Network Associates "at the time of writing the the worm was unavailable from this URL".
Sounds like Slashdot. Oh, hang on...