TapVertigo

4 Jun 2010 12:21 by Rick

This is a picture of a sinkhole that appeared in Guatemala City last week. It is about 18m across and up to 100m deep. It gives me vertigo just looking at the picture. Apparently there was a three story clothing factory on the far side which just vanished but there are no reports of any casualties as everyone had gone home due to the storm. It is not the first time; the second picture is of a smaller one that appeared in a shanty district of the same city in 2007 and killed three people.

TapBimbo the Budgie

28 May 2010 12:11 by Rick

Well we can all rejoice I hope, now that the ID cards and National Register and Biometric Passports will all be scrapped. What is sad is that all the money wasted on it cannot be recovered and there is very little that can be saved from the wreckage. I hope that the contractors that took on the work won’t be compensated as they knew in advance that, if the government changed, the job would be cancelled. That is the risk that they took.

David Blunkett’s version of what was to be implemented is very different to what he proposed back when he was home secretary and for him to say (Radio 4 this morning) that the information he provided to get his now useless ID card was no more than we would have needed for a passport can only be credited to the continual public opposition to the whole idea. There was no doubt that once it got established, more and more would have been demanded and other existing government databases would have been cross-referenced.

In case you are wondering and didn’t hear the interview, Bimbo was David Blunkett’s first pet as a child. It came up in conversation because he said it was the only piece of information that he provided that wasn’t needed for a passport application and that if anyone could find a use for it then good luck to them (or words to that effect). Well I can. As most people will realise, banks and other institutions are always asking us for a password which they can use to authenticate you and a secret question and answer is quite a common method to do this. Information like this is not as secret as we think it is. Even if the answer to the question is not known, the set of possible answers is quite small, though admittedly, Bimbo is not in the first dozen that I would try. I have seen questions like “What is your favourite colour?” Now how many possible answers are there to that? This is *VERY* low security and not worth the name.

The reason I could use the information is that people reuse passwords for multiple applications. Presumably he will no longer use that one now, but had I discovered it previously on some account that was compromised then there was a good chance he had used it elsewhere so was worth a try. That is why when some low impact login system is cracked and the passwords leaked, it is so much more dangerous than it seems. There is a good chance that many people will use the same credentials for other much more important systems and it is worth the effort of the criminals to try them out. If you think your email password is not critical, remember that if you click the “I’ve forgotten my password” button on any site, it is your email address that they send the new one to.

[Corrected: I accidentally wrote John Prescott instead of David Blunkett—shows how similar all these politicians are]

TapSuicides at Foxconn

27 May 2010 13:01 by Rick

This has been in the news a lot recently. Foxconn is a major manufacturing organisation in China which makes a lot of hi-tech consumer products for the west such as iPhones for Apple and stuff for Dell, Intel and HP. Sad though it is, let us get it into perspective. There have been 11 reported cases to date including two that were unsuccessful. Foxconn employs around 500,000 people, 300,000 at that plant. The suicide rate for China is around 14 per 100,000 population per year (although the figures are not very recent) and it is by no means the highest in the world. So on that basis there is no story.

So what is fuelling the stories; well there is nothing like a sensational headline to get readers and there is the Apple angle; and it may have been triggered by one case last year where the circumstances were a little suspicious, though never proven. Yes, western companies need to carefully monitor working conditions when off-shoring contracts but stories like this don’t help.

TapMy Hovercraft is Full of Eels

25 May 2010 12:46 by Rick

One aspect of web design that has become very popular in recent years is the functionality available by hovering the mouse pointer over some object and for it to do things. Hovering in this case means moving the pointer over the object but not clicking any buttons.

The effects can be achieved in a number of ways. One of the simplest is automatic in many browsers; if you hover over some pictures and links, if they have the “title” attribute then that title will pop up in a little box. Try it in the “Latest Comments” in the sidebar of this blog. Another simple and more controllable method is to use the CSS property “a:hover”. You can also see that in action on the sidebar and almost all other links on here—the background changes colour as you move over the link. Other effects can be achieved in the same way, some more desirable than others.

A more complex but much more versatile method can be obtained using Javascript “onmouseover” and “onmouseout” properties. A good example of this can be seen on our church website: the drop-down menu is created using that type of code. Another very widely used technique is using Adobe Flash. In fact it seems that nearly all Flash objects use mouse hover actions in some way. Take for example YouTube; The video starts automatically (I hope you enjoy it), but if you move the mouse over it then the progress bar becomes more prominent. This is even more pronounced on Vimeo. Other uses of Flash are much more sophisticated using not only hover but mouse movement to activate functions; games often do this.

Now to the point—how do you hover on a touch screen? I have done a few experiments using an iPod Touch and have discovered that the title & CSS codes don’t work at all; there is no way of activating the hover functions. Javascript, however, seems to be quite clever; the first touch activates the hover functions and touching elsewhere cancels it. If you want the click function then you need to touch the object twice. This means that the drop-down menus work intuitively. In fact I hadn’t noticed what was happening until I consciously thought about it. But Flash is just a big bag of eels. As we have been made very aware recently, it doesn’t work on the iP* devices at all. If Adobe/Google ever get it working properly for the Android phones, I wonder how they will cope with the crippled UI? Many video web sites like YouTube detect the device type and send a different form of video to mobiles and Apple is banking on this happening generally. HTML5 promises to offer many features in this area but each will need to be considered in the context of the user.

The challenge for web designers is to think in advance for mobile devices and how people will interact with then and also to do extensive testing on different types. For professionals they can offset samples against tax and expenses but for people like me; no chance, I will just have to think, hope and pray.

TapPretty Little Head

20 May 2010 14:04 by Rick

Who said “Don’t worry your pretty little head about…”? I have heard it a few times recently and can’t find a good source for it anywhere. The best I have come across is “The Little Colonel“, a 1935 film but I can’t believe that it is the root, I have never heard of the film before. There is a similar phrase “What could have put such an idea into your pretty little head?” in “The importance of being Ernest” (Oscar Wilde). Perhaps it all came from that but someone must have first uttered one of the most condescending phrases in the language.

TapLegal Tender

19 May 2010 12:43 by Rick

After a story that you can’t buy an iPad with cash in Apple shops, I looked up the rules as I thought that cash in reasonable denominations had to be accepted. It seems that I was wrong.

The Legal Tender rules (in the UK) apply only to the payment of debts and even then there are rules.

  • Strictly it only applies to debts paid into court.
  • No change can be demanded so the exact sum (or over) is required.
  • Bronze coins are only valid up to a total of 20p.
  • 5p and 10p coins are only valid up to a total of £5.
  • 20p, 50p (and 25p) coins are only valid up to a total of £10.
  • £1, £2 (and £5) coins are valid to any sum.
  • In England and Wales, Bank of England notes are valid to any sum. The notes of Scotland and Northern Ireland are not.
  • In Scotland and Northern Ireland, Bank of England notes are not legal tender, but neither are their respective own currency notes because they are issued by private banks and are therefore only promissory.

In practice there is agreement by UK banks to accept all the national notes, but shops do not have to. Bank of England notes are generally accepted across the UK and also in the Channel Islands, Isle of Man and Overseas Territories.

So, you can’t insist on paying for anything in cash and the transaction is by mutual agreement. However you can clear a debt using cash so long as the rules are adhered to—technically , unless by prior agreement, even a restaurant bill is a debt so can be settled in this way, but be prepared to carry a large bucket of coins if you are in Scotland.

TapUsing Stamps

13 May 2010 12:45 by Rick

I find myself sending parcels (strictly packets) fairly often and those receiving them like to have real stamps. They hate the white printed labels you get from the post office if you just pass the item across the counter. So how do you do it.

First you need to know the rules about size, weight and content, and they are quite complex. From that you can work out the cost. Then you have to obtain stamps to the right value and that is the subject of this note.

blue queen's head stampStamps exist in a variety of forms; there are definitives which are the small stamps with just the queen’s head. There are commemoratives, special issues in limited values and generally prettier. Both can be in gummed or self-adhesive varieties. Both can come in sheets or booklets. My correspondents like to get any and all of these.

Uk commemorative stampThe really difficult part comes when making up the required value. There are the basic range of stamps which are always available (though some offices have limited stock), called “make-up values.” These allow you to make any total relatively easily. They are 1p, 2p, 5p, 10p, 20p, 50p & £1 and they are all simple head definitives. The common inland postal rates are served by No value Indicated (NVI) stamps—these retain their function even if the postal rate changes and currently cost 32p (2nd), 41p (1st), 51p (Large 2nd) and 66p (Large 1st). A 9p make-up value exists to change a 2nd into a 1st.

Then there are the special values for other purposes. Currently these are 60p (Europe 20g), 67p (World 10g), 88p (Europe 40g), 97p (World 20g) & £1.46 (World 40g). They exist as definitives but are also commonly issued as commemoratives together with NVI 1sts. As was noted yesterday, 67p, 88p and £1.46 also exist as NVI stamps in booklets. 2nd class commemoratives are only issued at Christmas time. Some values are issued in a form called Regionals with different designs for England, Northern Ireland, Scotland and Wales. There are also four other values—£1.50, £2, £3 & £5—but you won’t find these available for sale at post offices, only by mail order and, except to collectors, only in sheets of 100. That strikes me as ridiculous and rather pointless.

England regional stampThe challenge remains to make up the required packet postal rates with the stamps available, including unusual ones wherever possible. I have noticed, for instance, that £2.24 (1st packet 500g) can be made with 60p+67p+97p which happens to be the values of the special stamps being issued today (Britain Alone, another WWII nostalgia series). Add a Large 2nd and you get £2.75 (1st packet £750g). These are the two values I need most often and it looks like the postal rates have been deliberately designed to allow this, but probably not—just try making £1.72. The counter staff used to be very quick at this but now they just use labels.

Here is a list of the most common postal rates required (apart from the simple ones) if you want to try your hand at making up the sets. Of course it is easy with the make-up values but the challenge is to do only with the NVI and the commemoratives. I think all but two are possible.

81p, 96p, £1.11, £1.14, £1.17, £1.31, £1.32, £1.39, £1.42, £1.51, £1.57, £1.59, £1.70, £1.72, £1.82, £1.87, £1.95, £1.98, £2.10, £2.36, £2.38, & £2.65.

TapLet’s Fleece the Foreigners

12 May 2010 12:58 by Rick

This is a Royal Mail dirty secret.

When foreign visitors come they may well want to send postcards home; I presume it is a tradition in other countries as it is for us. In tourist locations they could be offered stamps to go with them. Royal Mail allows franchise sales of stamp booklets from news-agents etc. The product that they will have available is booklets of four “Postcard” stamps described as “Worldwide postcard rate.” They are apparently Grey, Blue and Red but I have never seen one—you don’t if you live here. The price of this booklet is £2.68 i.e. 4 x 67p stamps. This is correct if you are visiting from America, India or New Zealand but not if you are from Europe, which must be the majority, they only require 60p stamps. I bet the retailers are either not aware or conveniently forget that.

Mind you, it is not as bad as Spain where once we asked for stamps for postcards and were given some; And for America? Just use two.

There is a similar thing going on with Europe Letter stamps (4 x 88p) which is the second weight, 40g and Worldwide Letter (4 x £1.46) which is the third weight, also 40g but I suspect is less of a problem because the booklets are harder to obtain and most people would go to a post office which, I trust, will advise correctly.

TapGood Morning Prime Minister

08:11 by Rick

I for one welcome our new two-headed overlords.

TapLet’s Look at some Numbers

11 May 2010 13:12 by Rick

Politics again, I’m afraid.

The news reports are saying that all this bargaining for deals has caught them on the hop and they weren’t expecting it. Rubbish—we have been expecting a hung parliament for weeks, at least since the mysterious Clegg surge, and it was very likely before that as the swing needed by the Conservatives for an absolute majority was unrealistically high.

The Tory press are criticising the LibDems (and being very insulting about it) for first trying for a Con alliance and, when that looked unlikely, going to Labour. That is what they said they would do before the vote—first try to seek an alliance with the party with the most votes. Get over it; this is real politics. However flawed, the people have elected those they want to represent them and it is up to those representatives to govern and that means forming a government. How they achieve that, we have entrusted to them.

Now that Brown has announced his resignation there is talk of yet another (Labour) Prime Minister without a mandate. That is rubbish too. Prime Ministers in this country do not have a direct mandate. They would need to be directly elected, presidential style to have that; we have Tony Blair to blame for giving people that impression. Again, we leave it up to our directly elected representatives, once they have formed a government, to select people for the jobs that need to be done and that includes Prime Minister.

Looking at a possible coalition, let’s look at some numbers. There are 650 seats so technically 326 are needed for a majority. The Conservatives won 306 and we can allow them one more for the vacant but safe Tory seat. They can usually count on the support of the Unionists (DUP 8 ) which gives them a working total of 315. Labour won 258 and can usually count on the SDLP (3) making 261. The Liberal Democrats won 57 and both the Green party (1) and the Alliance party (1) are likely to support them on most issues making 59.

A Liberal/Labour alliance adds up to 320. Of the remainder, Sinn Fein (5) don’t take up their seats, so that means a majority of only 322 is actually needed. Both sides are a few short leaving them at the mercy of the two nationalist parties, Plaid Cymru (3) and SNP (6) and an independent. It is just possible that the Conservatives could pull off a coup and form an alliance with these but which ever side does it, it will be at the expense of some concessions for their national interests and neither looks good for the economy or a stable government.

Digressing a little, lets look at what it would have been in a true proportional representation system. This is not realistic because firstly, no system will allocate the seats strictly according to the votes cast as I have done here but also because, if you change the voting system, people will vote differently; but lets do it any way. The results would have been Conservative 235, Labour 189, LibDem 150, UKIP 20, BNP 12, SNP 11, Green 7, Sinn Fein 4, DUP 4, Plaid Cymru 4, SDLP 3, Ulster Con/Unionist 2, Alliance 1 and eight others.

I am not going to say how I did it (remember these are only my personal opinions) but I think that would give natural (if strained) groupings supporting a Conservative government of 275 and a Labour one, 193 with 158 supporting the Liberal Democrats. That would definitely form a stable left leaning alliance but I can see why the Conservatives would not be keen on voting reform—they would be unlikely to ever form a government again!

P.S. Don’t be frightened by those extremist parties that would suddenly get seats, that is real politics too, and it is highly unlikely that they would get so many votes once the system was in place and people could vote for the policies they really want with an expectation that they will actually be heard.

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