Keltic harp tuning when no key is available

This is probably a very very rare issue that needed a special solution. Anyway. If somebody out there find him or herself in the same situation, read on, remember, and know what to do. If you’re out on a stage, with a folk-band, you have your basic tools, the harp is seriously in need ofRead more

Flexible blower in car

Not so much a post for wintertime, but hey, you can make one now and use it next summer! You can plug this flexible blower in a cigarette – lighter socket in a car, and aim it where you want. I used a 12V computer fan, some epoxy glue and a tie-wrap.Read more

Alternative cutlery storage

…or what to do with hundred-or-so tiny magnets… I took these magnets from a ball-and-magnetic-stick building kit, of which the balls had started to corrode. With a pair of pliers I crushed the plastic sticks, freeing the tiny magnets. They live happily on my refrigerator now.Read more

Portable room acoustics

I’m currently living in an apartment without the possibilities of building a permanent recording studio. (In one of the previous houses I lived in I had a room specially modified for recording and practicing) I still want to be able now and then to record instruments without the sound of my concrete square room, withoutRead more

PCB lamp shade

How to turn a major cockup into something nice? The first batch of PCB’s for the feet of the soccer humanoid were flawed. I have used the wrong footprint (mind the pun) for the microcontroller (NXP LPC2148.. wonderful controller by the way). So eight PCB’s in a slight trapezoid form were rendered utterly useless… IRead more

Relaxed evening viewing film on ceiling

Ok, I know that there is a wide community building DIY beamers using screens and overhead projectors (or even custom ordered sets of Fresnel lenses).. but that does not prevent me from putting my own together.. in less than 10 minutes (the time it took to remove the top mirror of the overhead – theRead more

Interfacing Paper with Phone: reading book on mobile phone

My phone doesn’t support reading of txt files or pdf. Upgrade to an i-phone would be the most sensible thing to do. However, my phone does have a 320×240 screen, capable of displaying images… How to make something out of that? I found a simple solution on this weblog, converting a text file using LatexRead more