I’ve lamented before the disappearance in our time of the Tinkerer, that fix-everything general technology expert of ages past. I ran into a demonstration of how far he’s gone the other day when shopping online for a new bluetooth hands-free cellphone car kit (my old one conked out, and fixing it would of course have cost more than buying new – another sign of our times).
I found on Amazon the Motorola T305 Bluetooth Speaker, and dug into its customer reviews. Turns out it has excellent audio quality, but there was a recurring complaint: people hated its big, intense blue light, which at night would blink very distractingly at the edge of the driver’s field of vision. 
The discussion among reviewers was about whether the blue light was terribly distracting, mildly distracting, or maybe you could get used to it after a while. What amazed me is that none of the reviewers I read (admittedly, only a sample of almost 300 of them) had done the obvious thing – solve the problem by tinkering with the device. This could be done in two minutes, tops: all you’d need is to cover the light with a sticker, which can be cut to measure from paper, or some masking tape, or – if you’re so inclined – a thin gold foil with inlaid silver patterns. Anything opaque to light would do. Or if you still want to see the light, but at lower intensity, you could punch a small hole in the sticker, or use a semi-transparent dark material instead of tape. Once you did that you’d have the great sound quality and none of the annoyance.
The fact that this obvious idea never occurred to anyone is disturbing indeed. We’ve become so accustomed to ready made products that the notion of improving them to serve us better is entirely gone! 🙁
The issues shown are from September 1969, June 1983, and October 2009. The difference in thickness is striking indeed: 10.6, 5.3 and 2.2 millimeters respectively. As far as pages go, the counts are 288, 156 and 72. What happened??
Is this good or bad? Admittedly there’s some attractiveness in ad-free reading; on the other hand, clearly it’s bad for the publisher, and may explain the paucity of real content. It may also explain the cost per page: issue price rose from $1 to $2.50 to $5.99, which is almost constant in normalized present day dollars; but we get less and less pages and articles for this investment.
Here’s the latest addition to the gallery: I spied this on a piece of medical equipment (a Critikon Dinamap vital signs monitor). It shows a dot centered in a circle for ON, and the same dot banished outside the circle for OFF. Luckily, they weren’t lazy and included the two words as well. This removes the possible confusion I’ve remarked on in my post on the 
Which made me think for a moment of how far forward – or is it backward? – we’ve come from the days of the simple mirrors still seen on vintage cars, as in the photo at right. In the fifties, a mirror was just that – a round sheet of silvered glass fixed in a round metal plate that pivoted on an arm. That was all – 4-5 parts, max, all externally visible. No innards at all. And cheaper to replace, I’m sure, than the bill the owner of the car in the first photo will face.
So I was delighted to see 
So what, you say?
But to the subject of this blog: there was a lecture by Yossi Eliav about The evolution of engineering literacy as seen in Venetian manuscripts about shipbuilding from the 15th century. This mouthful was actually very interesting; but at some point I asked a question about older ships and I was treated to the following insight: these Venetians had large rowing ships (right), galleys, carrying over 100 rowers, which were produced in large numbers and used extensively for centuries; so did the Romans, Carthaginians and Greeks 20 centuries earlier. But the Roman and Greek galleys – triremes, with 3 rows of rowers – were of a completely different, and far superior, construction!
