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I have clouds on the brain at the moment. On the one hand, Im attending a tutorial on today. For anyone who doesnt know - cloud computing is basically a way of using lots of cheap computers to do distributed processing, doing a bit of the work on each machine and then bringing the results back together. Its the Google model. So the plan for today is to learn about work which has been done to use this type of computing for text processing, mostly just for interest, but maybe Ill think of a way I could use it for my PhD (after all, I have some old computers lying around!) Im also spending a lot of time lately worrying about how to capture clouds as nicely with my dSLR as I used to with my old compact camera. Thats a photo from the old camera (taken in Iceland); I didnt have to put any effort into capturing the sky. But with the new one I have to take a lot of care to avoid it going completely white. I think I need either a UV filter or a polariser but I dont know much about these things....

I already had Greenland on my list for next summer. But yesterdays flight to Denver went the beautiful route (over Greenland and nortnern Canada) and now I really really really want to go there RIGHT NOW! Well, apart from the fact that Im quite enjoying Boulder, about which, more later. But honestly... Greenland... Im in love!

No, Im not going to talk about train crashes (though its hard to imagine what else could have caused half a carriage to be on the back of a lorry in the city centre). That would be far too depressing. But Ive heard a bit of debate recently on travelling safely, in particular how this relates to increased use of social media, so I thought Id throw in my 2p. With everyone now online around the clock and around the world, its much easier to tell the world about your travels in real-time. This has obvious benefits - like being able to get restaurant tips through Twitter - but there are potential down-sides, too. The big one is that blogs and Twitter are usually open - its not like Facebook where only your friends can see your status. So in theory, anyone could find out youre away from home and (the argument goes) conclude that your house must be empty. This post is scheduled to publish while Im on the plane to Colorado. Am I worried about telling you this? Well, not really. For one thing the house isnt empty - my husband is home, and even when were both away, we usually make sure theres someone staying at our house most of the time. We dont just leave the place empty for weeks on end. Secondly, Ive been quite careful not to tell you exactly where I live (Id prefer not to be stalked when I am at home!), so any burglar would have to search a pretty large area. But thirdly, and most importantly, using blogs to identify temporarily-empty houses is simply inefficient. I think any burglar would find it more profitable to simply drive around looking - the way theyve done for years. Thats my thought on the matter, anyway. Interested to hear your opinions in the comments - and if all goes well (and I can find an internet connection) Ill next be blogging from Boulder.

And it is ! Congratulations - and now you just need to let me know your address so I can get your prize in the post. Although, actually, I wont be able to mail it for a week or so... which brings me neatly around to my next point: Im off to Colorado tomorrow. There are a couple of posts scheduled in my absence, but in general my presence in Blogland is rather dependent on whether I can get the internet in my hotel, or at the conference. I hope youll all bear with me if Im a little quieter than usual, but at least I should have plenty of Rocky Mountain photos to share.

We were visiting an recently when we noticed a lot of birds fluttering in and out of the windows in the tower. Its times like these when Im extremely glad of the long lens on my camera; it can see much further than I can! Turns out there were house martins nesting in the rafters. Not just one or two pairs, but loads. I spent ages happily taking snapshots, while my husband worked out where all the nests were (he can see these things without using the camera zoom). My first attempt to capture one of the birds in flight was a rather amusing failure:

This photo was taken in Cornwall in May 2008. I have no idea what this sweet little building, perched high on a Cornish clifftop, was built for. If it were mine, Id open up the windows at the front, install electricity (and wireless!), and use it as a hideaway for writing. Though I dont know if Id get much done with views over the sea offering a constant distraction! Dont forget to

This weekend, I went on my first Brownie Pack Holiday as an adult. And my goodness, did it bring back memories of going as a child - I was apparently the only girl who wasnt particularly into Disney princesses at that age, and I still havent watched most Disney films, so I was a little out of my depth with having to be Sleeping Beauty for the weekend. Hiking through the woods, though? That I can do! We had to go off road to avoid lakes of mud at the bottom of the hill, so there was a little unexpected climbing. The weather was beautiful and, as well as walking and doing crafts, we went grass sledging one afternoon. Now my knee aches, Im very tired, and I have to finish packing for Colorado. But it was well worth it for all the Brownie smiles - and later, I can apparently get a camping license to take the 10-year-olds in tents, which would be fabulous (I was watching the Guides in their camp with just a little twinge of envy).

If you happen to be near Sheffield over the next couple of weeks, go along to the gallery on Level 4 of the Sheffield University Student Union building to see an exhibition named China in Photographs. I have a personal interest in this because five of my photos are on display, as part of a university-wide competition. The rules allowed up to five photos, in five categories: Chinese landscapes Chinese people Famous sites in China Culture everyday life Artistic Since I conveniently happened to be in China last year, Ive entered every category of the contest, including this one for the People category: Ill let you know if I win anything...... The exhibition opens tomorrow and runs until 5th June. Dont forget to to win your very own copy of one of my Beijing shots

Set into what looks like a fairly boring flight of steps, embedded plaques tell you a little about events in Mamesburys past so you can enjoy a history lesson as you climb. They are only brief notes, but nevertheless some interesting local snippets. c.500BC - An iron age community occupied the hill fort here. 675 - Adhelm, founder of the Abbey, is given the first grant of land for his monastery. c.880 - Malmesbury is given borough status by King Alfred. 941 - Athelstan, King of England, dies at Gloucester and is buried in Malmesburys abbey, having given Kings Heath to the men of Malmesbury forever. 1180 - Norman abbey building dedicated. c.1490 - Malmesburys market cross is erected, for poore market folkes to stande dry when rayne cummith 1539 - Henry the Eighth sells the abbey to William Stumpe an exceding rich clothiar 1886 - Malmesbury, after a thousand years of burgess rule, forms a new council Dont forget to

It may be shallow, I dont care. Having pretty, colourful things just makes my mood brighter - and that makes it worth buying them! In one of my favourite shops in Stroud, I recently bought a beautiful new card wallet: Id been looking at them every time I went in (or even walked past the window) for weeks, and eventually I gave in. Im glad I did: its so pretty, it makes me smile every time I go to use my credit card. In fact, I like it so much that it was only a couple of days before I went and bought myself a coin purse by the same designer: Even the back is pretty: The company, as you can probably read, is called Vendula, and they have a . I think my favourite (other than the ones I already own) is the coffee cup motif; go and have a look around if you like this sort of thing as much as I do. For added bonus, theyre very reasonably priced (you might even say cheap). Someone with far more dedication than I have to prettiness in the blogosphere is Kate at , a relatively new blog devoted to beautiful things . Dont forget to

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