Never-Seen-Before – ‘Deep impact’ of pulsar around companion star

(quote from Digg.com)

Astronomers have witnessed a never-seen-before event in observations by ESA’s XMM-Newton spacecraft – a collision between a pulsar and a ring of gas around a neighbouring star.

The rare passage, which took the pulsar plunging into and through this ring, illuminated the sky in gamma- and X-rays.

Not a lot I can add except to say this is very interesting – even if space stuff bores you!

read more | digg story

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Virtual Earth – Driving

(quote from Digg.com)

Virtual Earth’s New feature allows you to take a rid on the seat of a car and drive around town….google watch it!

Well, hyperbole aside this is an interesting development, but I am not convinced it is going to be a major threat to Google Earth.

In a nutshell, you get the choice driving a car or walking around one of two street plans (I assume more are to follow soon) using the arrows on your keyboard to move. Now, it is interesting but it is a FAR CRY from virtual reality. I am on a fast-ish broadband connection and the lag between moves is shocking.

The other problem with this, and it is the same with Google Earth, is that the photos are immediately dated. It makes this like playing Grand Theft Auto (or similar) on a 286 with a mod to make it boring.

Google Earth and its clones were (and are) an interesting way to pass time idly looking at remote parts of the world. This is good for about 10 seconds.

When (if) the mapping and response times improve this could be brilliant. It would be great to have a driving sim as good as current flight sims – but we arent there yet.

read more | digg story

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Linux is a better Linux than Solaris10

(from digg.com article)

Sun has master the art of meaningless marketing. That Solaris (whatever version) is NOT Linux, hence, the phrase Solaris is better than Linux at being Linux does not even rise to the level of an oxymoron. Want some facts? Then read on.

This is an interesting and somewhat thought provoking article that examines some of the “issues” that revolve around Sun’s marketting machine. While it does highlight some interesting points, I can’t say it is really as clear cut as made out.

Sadly, Sun appear to have targetted Linux as their opposition – which has caused a natural backswell of linux devotees now slashing and burning Solaris.

Sadly, both are excellent OS and should be capable of standing on their own. They serve different functions and meet different needs.

Why dont they all just attack MS Windows like sensible people 🙂

read more | digg story

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Linux for the UK

Well – previously the Dell Linux Workstations were discussed here and the end thoughts were that while it was a great idea the price was far from “right.” To make matters worse, UK customers would be charged an arm and a leg shipping and import duty. All in all, not in our top ten purchase lists.

However, today, thanks to the wonders of email, we have found out about a similar offer for people in good old blighty. This time it is Ebuyer (a legitimate online shop – do not confuse this with eBay) is having a warehouse clearance sale. Part of this is an “eSys ePC” for £127. The machine is not a top of the range monster, however at that price it seems almost trivial to get enough to run a Beowolf cluster at home.

The specs are:

  • Processor: Intel Celeron D 315 (2.26, 533, 256MB)
  • Memory: 256MB DDR expandable to 2GB.
  • Disk: 40GB 7200Rpm
  • 52 X CD-Rom, additional slots available to add more optical drives.
  • LAN 10/100
  • ASROCK/ ECS Intel 845GV chipset with built-in 64 MB Intel Extreme graphics
  • Audio on board incl. Front Pannel Audio

The on board video is a bit of a downer, but at the end of the day this is a fully functional home PC for next to nothing.

One word of caution, some of the reviews talk about this coming with a monitor – as far as I can see, this offer is for the PC, keyboard and mouse, nothing else.

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.htaccess issues

Right, I have been trying to update a website from a mix of static html and shtml pages to the wonders of “ultra modern” php.

The new pages are working fine and everything seemed to be going well until I decided it was time to accomodate all the people who had links to the old pages. (Not to mention try to retain the very high page rank the site had on google… 😉 )

Now, as the site was hosted on Apache / Unix, common sense says .htaccess is the way to go. I edited the file as follows:

There was an already existing line:

Redirect 301 index.html http://www.example.com/index.php

Which was handy. This works. Every day. So all I did was add a load of extre redirects along the following lines:
Redirect 301 old_name.shtml http://www.example.com/new_name.php

(note that it is all one line)

Now logic would say this should work fine. Except it doesnt. Nothing I do makes it work. I have tried adding full and partial URIs to both sides. I have tried swapping the sequence. Nothing.

In the end I gave up and used mod_rewrite to solve the problem which works, but is no where near as elegant.

Any ideas what I did wrong?

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Etrusia Roman Site

For those of you who dont know, the Etrusia Icon Etrusia History Site is dedicated to looking at various aspects of history – mainly the history of the British Isles but in places this broadens and the site looks at other countries as well.

A good example of this is the Etrusia Romans Icon Roman History section there – this covers the links between the Roman empire and the British isles as well as looking at what was going on back in Rome during this period. Recent updates to the site have seen it get a complete overhaul (including a large scale move from SSI to PHP on the backend) with its main articles being on the Romano – British Amphora Trade, and Roman Domestic Politics in the Late Republic. Future articles are planned to cover the Roman war machine, society and the Romanisation of Britain.

This is an excellent site, if you have anything you would like to submit to improve it then you would more than welcomed.

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FireFox Users

We are all aware that the firefox users out there are the chosen children who will one day inherit the Earth.

However, from lookin at the webserver access logs for this site (and its “parent” at www.whydontyou.org.uk) it seems that nearly 65% of the firefox users hitting this page are still on version 1.0 of the program.

Currently Firefox is doing well in version 1.5 – I can see NO reason not to upgrade. You will get a better (IMHO) browsing experience and nearly all the extensions and themes work.

For those who still dont want to upgrade, please make sure you are applying all the security patches / fixes as they come out.

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Naughty Albert

Naughty EinsteinNaughty,
originally uploaded by Vicky and Doug.

Now this is funny. There are numerous people (mainly on USENET) who are obsessed with Albert Einstein and almost deify him (or demonise him – either way they obsess about him) and it is something I have always found odd.

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Dell linux workstations

This is old news, but I missed it previously.

Dell are offering workstations with linux pre-loaded. However, in some fit of corporate madness they are seriously overpriced. You can see the details of the workstations at Dell. The cheapest starts at US$759 but I assume that price will rapidly rise as you get the components you need.

One positive point though – the high end one can come with up to 16Gb of RAM – more than enough for most home users….

Now, as mentioned in the past, we are big linux fans and actually like the idea that linux is now being sold “pre-packaged.” However, this risks pricing it out of the market. It is cheaper to buy a windows PC and install linux (a free version) yourself and as long as this is the case, things like this from Dell are just martketting ploys.

read more | digg story

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Apache .htaccess tweaking tutorial

This is a digg entry leading to a blog page about tweaking .htaccess to achieve your ends.

It is very good. Like most things (this blog included) it is not perfect and you may well discover better / alternative ways to do things but for 80% of the population who need to mess about with .htaccess this will help.

It is quite serendipitous that I came accross this today as I was in the process of fighting with the .htaccess on a site I am looking after. While this tutorial hasnt been the perfect answer, it did help me notice a common mistake I had made which was causing the problem (embarassingly it was a case of me forgetting about inheritance!).

All in all – well worth checking this out.

read more | digg story

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How To Make A Star Wars Type Hologram

Ok, now we all know how some people dont mind making themselves look like the biggest Ãœber geeks on the net but here is some guy going further to acheive this than most. (see pic on right! :-)) Cheese alert

Ignore the cheesy, geeky theme of this tutorial and you get an excellent bit of advice on how to do some great effects with photoshop.

Well worth looking at – it is just a shame about the guy thinking styles from 1956 are still acceptable (not to mention his toy lightsaber). He could have at least dressed up for the occasion. 🙂

read more | digg story

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WordPress and Valid HTML

For some mad reason word press is inserting a random

tag in the posts from Flickr. I have checked the HTML source (doing an edit post) and there is nothing there, unless it is being inserted by Flickr somehow.

Anyone have any ideas what can be done?

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King Aelfred – pretty great

As promised or threatened below, you can now read a couple of pages on Alfred the Great on the etrusia website. It seems he was pretty great as a guerilla fighter against the Dabes and reasonably great, by Saxon standards, in that he had social policies aimed at promoting peace, justice (in Saxon terms) and education.

However, in case saying this might amount to glorifying him as a resistance leader and would therefore contravene the new law, I will say that he seems to have been a reasonably good ruler and surprisingly long-reigning for a Saxon. See a list of Anglo-Saxon kings. Relatively few outlasted a year, in the face of strenuous attempts by their rivals to take over (assassination/banishment and so on).

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Best Regular Expressions site ever! (Not)

Digg.com is a fantastic resource, easily one of the best places to find tech info and see what sites other people find interesting.

However, as with all things it is wide open to abuse.

For example this page – along with its spam-like title – is one of the most dugg items on the programming strand at digg.com. (see http://digg.com/programming for more info).

However, this page is FAR from the best regex site ever. It is little but a blatant attempt to advertise the commercial software. Despite this, it has LOTS of comments and hundreds of diggs.

As previously mentioned (on this blog), the problem with sites like this is that it is very easy (and quick) for the sites it represents (the ones people post) to become very polarised. If you posted a new link to a programming site for example, only the die-hard diggers would find it – most casual users would be left looking at the “most popular” ones on the front page.

That said, it may not be ideal but Digg.com is good….

read more | digg story

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Flickr – and posts

Just for information’s sake. The reason why there has been a sudden rush of posts with nice little pictures on the left is two fold.

First off, as we now have the history section, I thought it would be good to get some things in there, and there are some amazing photos available on Flickr.

Secondly, as Etrusia now has a flickr account and is uploading images, I thought it would be worth taking the chance to check how blogging from flickr works. For example, we are supposed to be able to “auto-blog” our pictures as they are emailed to flickr – this has not yet worked even once 🙁

Still the rest of the functions seem to be working fine.

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