TapPassword Reminders

19 Mar 2007 15:48 by Rick

Password Reminders

Thanks to the Security Buddha for this.

TapFake 20s

10:27 by Rick

These are the guidelines given in a press release from the Bank of England (PDF) about the new “Adam Smith” £20 note.

What should I do if I think I have a counterfeit note?

Counterfeit notes are worthless. It is a criminal offence to hold onto or pass on counterfeit notes. If you suspect a note is counterfeit, take it to the police as soon as possible. They will give you a receipt and send the note to the Bank of England for analysis. If the note is genuine, you will be reimbursed.

That last sentence doesn’t exactly encourage you to look too carefully does it?

TapWaste not, …

16 Mar 2007 12:46 by Rick

As my family will testify, I am rather obsessive about waste. I think this is learned behaviour from my father and grandmother who taught me from a very young age what it meant. I can probably count the occasions when I have left food on my plate and then it was either because I was ill or the victim of over generous restaurants (which I will never visit again). I have also been known to cadge unwanted morsels from other people which probably makes me an embarrassment in company. It is hard sometimes not to berate others who leave perfectly good meals, don’t be surprised if I no longer talk to you if you are guilty. I will turn off television programs where waste or destruction is a feature of the entertainment. I have been known to cry in extreme cases, such as the Jersey tomato wars (yes, they are seared in my memory) or when our almost new car was written off. It may also account for why I am a little larger than I ought to be (if it is served then I will eat it) and why our house is full of things that “may come in useful one day.”

So I could probably answer today’s reported survey honestly and say that “No, I don’t waste food” unless you count over-eating as waste, which we probably should. By the way, you need to read the referenced article carefully. Half of the waste they are talking about is genuine rubbish; peelings, bones and used tea bags for instance. I am not interested in the environmental bandwagon that this report is hanging on but the fundamental principle that we should only consume (in whatever way) what we need. Anything else is theft.

There are sources of waste which never even reach the customer and the report doesn’t mention them. Food is trimmed so only the presentable bits are left in the packet, even though the other parts are good, and, even if not consumable, serve to protect the remainder. Use-by and Sell-by days often err on the ridiculously cautious side. We know, in most cases, what is good and what is bad and when we can’t, crying wolf too often only makes things worse. In what way will salt or sugar go bad (if kept dry).

“There’s nothing wrong with mouldy cheese, just cut the mould off”

said Antony Worrall Thompson

“I remember in the old days, when you got a big joint on Sunday.
You’d have cold meat on Monday, cottage pie or shepherds pie on Tuesday, curry on Wednesday and so it would go on until you got a bit of fish on Friday.”

Don’t people still do that? We do.

TapI’m in Germany now

09:46 by Rick

… but read on to understand why. My workstation in the office is connected to a large international company network so when we send mail to colleagues around the world it travels entirely on our own wires. There are a number of places where it makes contact with the Internet so that field workers can get in using VPN and mail can pass to and from our customers and suppliers. This is also true for web access and the proxy I have been given access to is in Germany. The web servers I contact are given the I/P address of the proxy not my workstation address; that is not unique. This address is part of a block allocated to the German branch of the company and many web sites know this, so they think that I am also in Germany.

This may seem like no big deal but it has some strange side effects. Some web sites, particularly search engines and advertisers (is there a difference?) try to be clever and present “targeted advertising likely to interest me.” So if I go to www.google.com it automatically redirects me to www.google.de and I can’t read the instructions to change it back. Advertising on many pages, if it is outsourced to a major provider, is directed at the imaginary German “me.” There is a possibility that I would be unable to see some sites at all; I am told that parts of the BBC web site are for national use only but I haven’t found them. It does have some advantages though; I don’t get distracted by the advertising so much any more as I can’t understand a word of what they are about. So when I am offered “Komplettes Zugriffs und Identitäts-Management” I take no notice, which is probably just as well.

In some ways, what is more disturbing is that, at home, some sites know I am in Bristol, not just the UK. They will know my address soon.

Tap2 Ways to Live

15 Mar 2007 13:41 by Rick

2 Ways to Live

A simple and straight forward presentation of the Gospel.

TapBlack armband

09:18 by Rick
Trident

Bishop Mike on the subject.

TapNeed a new mobile?

12 Mar 2007 13:14 by Rick

Try the Samsung 3000 Turbo, there’s nothing it can’t do (don’t worry about the commentary, just watch the pictures).

TapTrojan Horse

7 Mar 2007 15:19 by Rick

Do you remember the story of the Trojan Horse, where the Greeks put a load of soldiers inside a wooden horse and gave it as a gift to the city of Troy? It wouldn’t work now, would it?

Trojan Horse - The Chaser

Perhaps it would!

TapReview of 2006 +2

6 Mar 2007 12:19 by Rick

I was glancing back over past posts and realised that I hadn’t reported back on what happened last year so better late than never (as they say), hence it covers 14 months.

  • Very little has been done on West Penwith Resources though I note that 14 major new sections were added at the start of the year bring it up to 857 pages. The promised makeover never happened. The primary cause was a major commitment offline which took up a large proportion of my time; I even had to drop work on the Census project for a while.
  • Custom fonts were abandoned. I came to the conclusion that not enough browsers supported them and the bandwidth penalty was too high.
  • I surprised myself by keeping up a flow of posts to the blog, managing one or two most weeks. Accidentally I seem to have become a national authority on the Renault Laguna, the Advent GPS system and mobile phone scammers, none of which I know a lot about.
  • This was the year that blog comment spam became a problem. I first installed the Akismet plugin which trapped it nicely and then, later, Worst Offenders to manage the collected spam and attempt to block it at source.
  • email spam got completely out of hand so I had to abandon the open domain approach and restrict addresses to a short list which involved changing a large number of sign-on accounts. It is now down to manageable proportions again.
  • Other than that and a small hiccup mid-year, email has been working reasonably well. I did consider changing supplier but the only one I contacted never replied. I don’t know how easy it is to separate email from hosting on the same domain.
  • The site is now running as a search engine for the Cornwall Online Census Project as their server doesn’t allow scripting. It is the biggest bandwidth user on my site but keeps the load down (and hence the host company happy) by using the Zoom CGI rather than PHP engine.
  • Offline I have finally detached myself from MS Office and gave away my copy to a deserving cause. OpenOffice 2 is good and the retraining curve has not been too great. The Firefox 2 upgrade was painless and has improved the spelling on this site by checking before posting.
  • While installing a new home computer (a traumatic and very time consuming business) I took the opportunity of re-organising our file server so that it is automatically backed up and can hence hold archive as well as backup files. I have fine tuned the client backups so they are easy to run (using Backup4all). I use my home setup as a sandbox for the church system which is run largely unattended and used by non-technical people so it has to be low impact.

For this year … ? I am wary of making resolutions as I met so few of them last year; any way it is a bit late now.

  • I will have to jump to WordPress 2.1 soon and Thunderbird 2 is promised as well. From past experience these will be quite easy. Vista is not even in my range of vision.
  • I am getting concerned that the UPS I installed is having a measurable impact on our electricity bill over and above having things like the server and network equipment on all the time; I need to find a way of measuring it.
  • A longer term project will be changing the church website over to a content management system, probably WordPress, but I don’t know if it will be this year.

TapSpeedo

5 Mar 2007 12:29 by Rick

The speedometers in cars are notoriously inaccurate. This is something we have always known but with the ubiquity of GPS devices with rather more accurate (if lumpy) speed measuring this has become much more obvious. They are always calibrated to read high so that the inaccuracy will never cause you to inadvertently exceed the speed limit.

This is annoying. Like most drivers with some experience I don’t read the speedometer very often but judge it mentally, only checking the dial when changing speeds (or spotting a camera, but that is another matter). However, even then, we are judging our speed by a previously learned experience based on an inaccurate instrument. It is really noticeable when stuck behind someone doing exactly what they think is the speed limit when you know that they could be going 5 or more mph faster.

The law says that speedometers should be between -0% to +10%(+4 km/h) accurate. As they cannot achieve the -0% by design, they always over read a bit. They work by counting revolutions of the wheels and I thought that part of the inaccuracy was due to tyre wear so I did some calculations. I have 195/65R15 tyres; these are nominally 25″ diameter, i.e. about 807 revolutions per mile. If we assume that a new tyre has about 3/8″ of tread and when worn it is reduced to 1/8″ that is 1/2″ loss on the diameter and now 823 revolutions per mile. This is enough to cause the meter to read 2% fast; certainly significant but not as much as the discrepancy that I observe (nearer 6%). Changing your tyre or wheel size or the differential can make even bigger changes if you don’t get the speedometer re-calibrated.

It ought to be possible to make speedometers more accurate. They could use GPS technology—by setting my handheld device to sample quite frequently it becomes relatively smooth and if this were further smoothed by software and translated to an analogue device it could make a good and accurate meter. Alternatively it should be possible to adapt optical mouse technology. These work on any suitable rough surface, the road would be ideal, and the only thing that would need to be changed would be the range up to about 400 mm to the underside of the car rather than 4mm to the mouse mat and this would probably need a more powerful laser. Pointing the device at the tyre would reduce this necessary range. (I thought of this independently but I see that halfbakery has a similar idea—which proves how daft it is)

P.S. The ACPO formula for determining speed violations is currently 10% +2mph. Police car speedometers are calibrated -5% to +0% (the other way around to ordinary ones) so that they don’t think you are going faster than you really are. Camera speed traps are triggered at an even higher point than this but not enough to compensate for thinking you were in a different speed zone. Those annoying electronic flashing “SLOW DOWN” notices seem to be randomly set and very inaccurate, often reporting about the car three or more in front of you. They have no weight in law.

A House of Lords reply indicated that speedometers are actually manufactured to a -0% to +5%(+10 km/h) tolerance which over-reads still more, not meeting the legal requirement until 120 km/h (about 70mph). In theory when you think you are doing 30 you could be only doing 24 mph though I don’t think many are that bad.

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