Avoiding seven years bad luck..

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We didn't go out to buy a mirror. Especially not one that is octagonal, around a meter in diameter and weighs a ton. But we did. Here you can see the carefully calculated plans that I used to work out exactly where to drill the holes for the two bolts on which the mirror will fit. Unfortunately, even with this level of careful planning I still ended up with the mirror sat forlornly on the floor. 

The extra chunky coach bolts are in exactly the right place on the wall, which is nice. But the hooks on the back of the mirror won't fit over them. Life eh?

Big feet, big problems

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I've never considered myself as having particularly large feet. But apparently I have. I went into a shop today to try and buy some new shoes (something which I only do when the existing ones are actually falling apart) and they had nothing in my size. Nothing. (well, nothing that looked sensible anyway - I had number one wife with me as my "stlyistic sanity check").

What we want is a way that I can go on-line, tell the shop I'm coming in on Saturday with feet that need shoeing (if that is a verb) and then walk in to a plethora of fitting footwear. And you know, in the future I reckon it might just happen. I certainly hope so. 

MVP Powered Techdays Online next week

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If you fancy some cracking free training next week you can sign up for TechDays Online. There are a whole bunch of splendid sessions from Microsoft folks like Mike Tautlty and Paul Foster, along with some really good MVP speakers too.  It runs over Wednesday 18th May and Thursday 19th. The whole agenda looks really interesting, but yo you can pick and choose what you watch.. You can sign up here.

If you do go along, tell them Rob sent you. And mention cheese. 

Free Photographic Filters

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It is rather strange that, having invested in cameras and lenses that give the most true to life images, we then invest even more in filters to make the pictures look lo-fi again. But we do.

The good news is that one of these filter packs has now become free. I've no idea how Google ended up selling a bunch of high quality filters for Photoshop and Lightroom, but they did. And now they've made the filters free.

The Google Nik Collection of filters is well worth having. There are some noise reduction and HDR ones among them which are OK, although these kind of things are probably done at least as well by some of the built-in features of Photoshop and Lightroom. However, the vintage camera and black and white filters are lovely. The set used to represent reasonable value at 85 quid. For free its a steal. 

Exams as an aid to learning

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[Click through the picture for the full 360 degree lecture experience]

Sometimes I get asked about exam technique. What's the best way to deal with an exam? What should I do to prepare? My advice is quite simple; try to get yourself into a situation where you know the answers to the exam questions. 

Today we had our revision lecture for our First Year Programming module. I went through all the questions from last year and didn't quite give the answers as such. I was more interested in charting a path that will get you to the answer from first principles. I'm quite calculating about this. I'll try really hard to give some solid hooks that you can remember, and will start you off to the answer. 

Compostition? That's a car number plate. Throw away the numberplate and the numbers go away too. 

Agregation? That's a football team. If we disband the football team we don't kill all the players. 

I feel a bit guilty about saying "and the way to remember the triangle on a class diagram is to think of granddad dying", but I was trying to get people to think about inheritance....

The aim of all this is to make exams useful for teaching, as well as our assessment mechanism. In a week or two's time I'll find out if it worked. 

Burnby Hall Tulip Festival

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I'd not heard of Burnby Hall until this weekend. They are presently having a tulip festival, and number one wife wondered if I'd fancy going along an taking some pictures. 

Would I just.

So it was into a bag with a goodly assortment of lenses, tripods and kinds of other paraphernalia (that's the great thing about photography - plenty of scope for paraphernalia) and then off down the road to Pocklington. 

It was lovely. We got there nice and early when there was a bit of an angle to the light and it was nice and quiet. It's a great place to visit. Good food, good weather (at least today) and lots of tulips. We saw loads of families with picnics making a proper day of it. And there was even a brass band at 2:00.  

Not sure they've fully grasped how Secret Gardens work though....

Kodak Photo CD Fun and Games

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Twenty years ago, when I was still learning how to take photographs, Kodak Photo-CD was supposed to be the next big thing. Keeping photographic negatives and prints was going to be so old-fashioned in the new, wonderful, digital age. 

Of course I bought into it. I got four or five rolls of film encoded onto this magical, future-proof, media. Of course, twenty years on all my prints and negatives are still around and usable. And the Photo-CD? Well, if you dig  around long enough you can find a program called Irfanview which will convert the files into something you can view again. I spent a happy hour or so this evening getting a bunch of pictures of the disks and passing them around the family.

The one above came out sort of OK, although I seem to have got a perfectly focused foreground and blurry background. So, twenty years ago I was still making the same mistakes I'm making today, just with a lot less technology to help out. 

Say Hello to Hull Pixel Bot

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I've been spending the odd five minutes here and there designing and printing parts for a little robot that I want everybody to build. I've called it the HullPixelBot, because I want to turn it into a mobile pixel. I had lots of fun making my wedding lights a couple of years ago and so I thought I'd have a go at making a mobile version. The idea is that if I can get enough of them together and network them we could have a whole bunch of mobile coloured dots which we can display patterns on. 

It's kind of artistic. But in a technical way. 

Sooooo,  I want to get everybody making little Arduino powered robots. The target price for parts for the robot is less than ten pounds. I'm using very cheap stepper motors which work fine. They are a bit slow, but they provide a precision of movement which you just can't get with standard DC motors. I'm also using catapult ammunition (really) for the caster and four AA batteries provide the power. There are holes you can use to attach sensors and we will develop the design as we go along. 

I'm taking a bunch of parts to the C4DI Hardware Meetup on Thursday this week. If you fancy having a go at building a pixel bot, come along to find out more. 

I made a tiny video. More hardware details to follow.

Update: The STL files are now on Thingiverse here.  There's also a HullPixelBot mini-site here. 

Marking time

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We were back in the department, marking today. We are using the latest version of my Magic Marking program, which now has a search so that you can easily find the student you want to mark. It automatically opens the student submission, builds the marking spreadsheet and puts everything in the right place for returning to the students when the marking is complete. I saw some really nice great too, which was nice. 

Elder Sign Winners. Yay!

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Tonight we managed something that I didn't think we'd ever do. We won a game of Elder Sign. We defeated the Black Goat of something-or-other by a cunning combination of skill, timing, luck and more luck. It was great fun. Owing to reasons of chance I was "Sister Mary", a woman with strong will, an ability to use locked dice and who is, sadly, not much good in a fight. But I was playing with a gangster and someone with second sight, so it all worked out well enough.

It took us two evenings to complete the game, but it was worth the effort.