In recent years the freeway system in Israel is applying some pretty good leading edge technology (including truly transparent wireless toll collection that is still missing in many countries I visit).
One interesting system can be seen in the Ayalon highway in Tel Aviv. This road has electronic signs that give precise real time information of the driving conditions ahead, including which lanes are jammed and how fast the traffic moves (when it does). Perhaps most impressive are the signs that give a taste of the despair lying ahead, as in “Traffic jammed through La Guardia exit”… not that there’s much you can do about it, admittedly, but at least you know!…
Photo: Wikimedia commons.
Of course, behind this capability lies a network of sensors and cameras, and an expert system that integrates them and recommends to the human operator at the road’s control center what messages to send to the signs (I thought the system was entirely automatic, but actually it does give a human final override). The information on the signs and the video from the cameras are also accessible on the Internet: the traffic flow conditions are updated every few minutes, and you can click the camera icons to see the real time video stream - and mouse over the “i” icons to see what text appears on each sign.
When we toured Scotland we visited an ancient building with a curious design feature: it had a staircase that ran in a counterclockwise spiral, opposite to the standard design.
We were told that there are a number of such buildings in Scotland, all built by the same family. Apparently the Kerr family tended to have many left-handed sons, and they built a number of their castles and buildings (notably Ferniehirst Castle, in the 15th century) with counterclockwise spiral staircases, the idea being that a left handed person could defend them more easily (and perhaps also confuse the more common right handed enemies? although it seems that the latter would have some advantage on the attack).
Such a degree of custom design, geared to a genetic trait of one family, is interesting. It is also told that once they committed the architecture this way, they handled the fact that not all their fighting men were lefties by training those who weren’t to fight with the sword in their left hand anyway. Customize the building to the family, then customize the retainers to the building…
So, if quality is critical, how do we find the best tools?
One simple method is to go for the best makers; the ones the pros swear by. In my case I did that by interrogating my machine shop teacher in university, a master craftsman with decades of experience. Basically it went like this:
Me: what is the best make of hand files?
Master: why do you want to know? These are not for a hobbyist; they’d be too expensive for you anyway.
Me: Oh, I’m just curious.
Master: you aren’t going to buy them, Right?
Me: Perish the thought! I only want to know.
Master: You’re sure?
Me: Cross my heart.
Master: well, the best files are made by Nicholson; but you have to make sure it’s the Dutch Nicholson. Nicholson also has a factory in Canada, those are not quite as good.
Me: Thanks!
And then I’d rush off to buy some Dutch Nicholson files.
Those files serve me well to this day, though in all fairness, I suspect the Canadian ones would have served just as well…
