I took the day off yesterday (well, mostly) and had a wonderfully relaxing time just reading, snacking, relaxing and napping, so now my wakefulness-levels are almost normal again.

Now that I'm in the quiet of my own little study again (crammed full with the boxes of the experiment), I really start to miss the chatter and bad jokes and friendly banter and "string talk" of last week. And slowly I realise that the Textilforum has indeed taken place, that we really did it, that the experiment was really wildly successful, and that I have a heap of things to remember the wonderful week by, including my first ever badge for making a fire without more than two matches (heehee! All that training was worth it!), the most ugly cardboard-piggybank ever made by man or woman (and a very well-fed one at that, thanks to the generous people at the Forum) and the now-famed cat timer that usually resides on my workdesk but had taken a venture out and did some important work in the spinning experiment.

There are already some pictures online at Phiala's blog, summing up nicely all the things that went on, including the silliness. Here's a random picture taken during the spinning experiment (they are not sorted yet, of course...):

I arrived back home from Eindhoven yesterday evening, after a week of all things good and fibrey (or stringy). More than a hundred of spindles were spun upon, masses of tablets turned, waffles and chocolate eaten, large quantities of coffee and tea consumed, and laughter and fun abounded.

The Textilforum was everything I had hoped and wished for: A meeting place for craftspeople and scientists, a place to chat and exchange knowledge and personal experiences with different historical techniques, to network and have fun together, a place to do some shopping for textile-crafts-related things and tools that cannot be found just everywhere, and an opportunity to have some nice, juicy bits of science that requires more than just one or two skilled craftspersons. So overall, a complete success, and I am sure that every visitor to the Forum also went home with something new and delightful learned.

For the experiment, I had the joy and privilege of working together with fifteen wonderful spinners to generate a really large dataset that will help a lot for researching spinning and spindle whorls in the future. This dataset and lots of number-crunching from it will probably keep me on my toes for the next few days and weeks, but the data already looks very, very promising. The first results were already presented to the spinners and lecture audience on Saturday evening, and more results are the topic of my talk at the liveARCH conference in Hungary in October. A good reason to set to work on all the cops of yarn and questionnaires!

As this blog's regular readers will know (and even the semi-regular readers, as much as I've blogged about it), this week is Textilforum week at Eindhoven, and I will be busy with running the spinning experiment and chatting real-life with lots of other historical textile enthusiasts.

For you, this means you can come to Eindhoven and have a chat with me as well - or wait for regular blogging to resume probably Tuesday week after next.

And if Eindhoven is too far away from you, but Erlangen is not, and you are looking for some hands-on experience: I will be giving an introductory course at the Begegnungszentrum Bruck on eight Monday evenings, starting on the 21st of September.

I have a really hard time believing that the Textilforum will be so soon. After preparing for it since we conceived the idea last year in October, which feels like ages ago, it's a kind of weird feeling that it all actually happens. And I am really, really excited about it, packing, printing and preparing like a madwoman. I would like to take my entire stack of things, projects and literature, but alas - I will have to sort out a few things that are most important to me and take only those.

While I'm busy, you can go and look at two Youtube videos about spinning worsted style and woolen style, posted by Ruth MacGregor (who will also come to the Forum). She's showing how to spin woolens and worsteds, and I finally really understood the difference between them. Besides, when you can't do some actual calming, comforting spinning, these videos are almost as good for calm and comfort - thank you, Ruth!

(And watching this video made my fingers itch. Badly. Very, very badly. I think I need to sit down for some quiet wheel time one of these days...)

Since yesterday afternoon, fourty plywood discs in two different sizes and thicknesses are peacefully lying on a heap together, completing my selection of experimental spindle whorls. Thank goodness for the invention of power tools and "circle cutters"! Though even with that multi-watt support, it took me a while of fiddling with the large plywood sheets, the cutting gadget (a very cheap tool and accordingly fiddly to use) and the drill in its stand before I found out how to best cut the discs. But in the end, the archaeologist prevailed!

Now all the hard bits of the preparation are finally finished, and the whorls have turned out not to be perfect, but at least very good, and absolutely sufficient for the experimental purposes. So whew! The power of trial runs and solid calculations (with a huge lot of help from André Verhecken) is proven again.

A lot of the wool is already portioned and packaged, and today I'll take care of the rest of packaging before finishing the plywood with a light sanding around the edges and then... glueing the spindle whorls and spindles together.

This is something I would never do under ordinary circumstances. Who would want a spindle that can't be equipped with a different whorl, after all? "Those folks" back in the middle ages certainly didn't need glue to keep their spindle whorls on the spindle, the double-conical form was enough.

But since I am using chopsticks as spindle sticks (totally non-medieval, just like the plywood and the modern glue for assembling these), and since the plywood needs some glue to keep on the stick, and because I just want to make sure that none of the whorls slips off during the experiment, glue it is.

After the spindles are assembled, there's not much left to do for the experiment - preparing the documentation, writing down my notes for the "prep talk" before we start and packing all the things needed for transport to Eindhoven, no more. And well that this is so, since the experiment will start on Tuesday morning next week.

I'm still weighing and packaging wool, preparing spindles and preparing "starter yarn" for the spinning experiment, so the living room is quite taken over by the huge box of unpacked wool and the boxes with wool in plastic bags. Thankfully, once the air is out of the bags and they are sealed, they are pretty slim and thus quite manageable. I think I've never weighed and portioned off so much wool in my entire life!

While thinking about experiment details yesterday, I have also found a solution to keep all the spinning procedures as much the same as possible - which means to slide off the spun yarn after the first hour and start a new batch with the second wool type, again with an empty spindle and using a starter thread. And fortunately, I have also found something to slide the spun wool on.

There's still things left to decide, though. Should the spinning be done with the two wools in the same order every day? Say, first the fine and then the coarser wool, or vice versa? Is it better to do spinning of one spindle on one day, or is it better to change spindles and spin with two different ones, a new one after the first hour? Maybe this changing would diminish a big "getting-used-to" effect (but then, I'd guess that getting used to a new spindle won't take longer than five to ten minutes). Still, changing spindles would give at least a bit of the need to get used to it back, especially since changing spindles in the experiment means a vastly different tool to work with. And it would give me enough time to slide each bunch of spun yarn off the spindle stick and onto its storage tube, weigh it and label it as necessary.

Details like these are what I find so very fascinating about archaeological experiments. Even if you take a very simple thing to find out about as the basis of the experiment, it will get down to details that might not seem much at first glance, but that might be making or breaking the whole thing.
Our experiment basic idea is quite, quite simple: Find out about the influences of the different factors in spinning with a hand spindle. There are only three main factors, the spinner, the fibre, and the spindle itself; but the latter already offers two influencing elements, its moment of inertia and its weight. The spinner's influence can only be estimated if all the other influences are well known, so we only need to find out about these. The approach to that is like in any laboratory work: If you want to find out what a specific value does, just change that value and nothing else. And that is exactly what we did in designing and calculating four whorls, starting with a "reference whorl" corresponding to an actual archaeological piece in both weight and moment of inertia. (This, by the way, was not easy - the calculating was, but trying to guesstimate the shrinkage of clay from wet to fired and developing a method to get whorls all alike each other did prove difficult.)

So now we have five whorls and two sorts of wool, fine and coarse - the only thing we need to do now is run the actual experiment, with up to twenty spinners each spinning ten hours altogether, one hour per fibre and spindle. And, of course, deciding which spindle goes into action when, and with which fibre, and in what order. And what to document, and when, and how (you can never document too much, but you can't write down something that you haven't thought about...). And how to label each test batch. And, and, and...

Which gets me back to the title of today's post: Experiments are Awesome! But they always seem to multiply their demands on time and brain cells. And they never end up as harmless as they seem at the beginning.

I'm back home from a wonderful, relaxing holiday time, and now I'm settling down to the last preparations for the Textile Forum.

The whorls have been fired in the meantime, and they are now safely sitting in a box on my table, waiting to get equipped with a spindle stick each. Using the special "whorl-cookie cutters", that were custom made to my calculated measurements, worked really well. The whorls came out very much alike, they fit the sticks very nicely with their holes, and so I'm quite confident about the whorl part. I snuck back to work yesterday already, spending some time to portion and package the small parcels of wool to give out at the experiment, making sure that everybody gets the same amount of wool to work with.

Now there's the obligatory stack of e-mails to go through - as usual after being away for some days - and the last bit of preparation to make. And very soon it will be time to start writing the lists for packing and gather together all the stuff!