Edible fruit have been on this planet since the Cretaceous, but they know how to move ahead with the times.

See the photo: this pear, recently arrived from our greengrocer, has a barcode on it!

Why does a pear need its own barcode? I could understand putting one on the crate, for easier shipping control and stock management; but nobody scans an individual pear, do they? In fact, people have been eating pears for ages (seven millennia, more or less), and for 99.9% of that time they managed just fine without a barcode, as you can see in this snippet from a botanical illustration from 1771.

And our modern pear has more than a barcode: it has a logo, and it has a catalog number, and – wonder of wonders – it has a Web site! This is nicely done, chock full of pear lore and fun. I’d joke that at this rate it will soon have its own fruity Facebook account, but of course, it already does. And it’s on Twitter, too: @usapears.

These Generation Y pears sure are getting ahead in our hyper-connected world!

I was in a building where someone decided to give the signage a modern look, and I saw this sign outside a restroom. The people have this angular look, with slanted heads – why not? Anything for effect…

But it does occur to me that the guy on the wheelchair with the nonagonal wheel (yep… look it up!) will have a rather bumpy ride. There’s a reason why the inventor of the wheel chose to make it round!

Check the new article on my History of Computing exhibit: a century old teaching aid from Germany, with the added twist that it anticipates today’s well known slogan: “To each pupil his own counting machine!”

I was shopping at Office Depot, and next to the checkout line they had this bin full of cheap items on sale. And in it, thrown carelessly with less decorum than potatoes get at the grocer’s, were blister-packaged Flash memory cards.

They had 2.0 GB units selling for a pittance. That’s two billion bytes, or 16 Billion bits. I remember Thirty years ago, when a solid state memory board of 16K Bytes would come very carefully packaged – rightly so, as it cost thousands of dollars. The unit in the blister pack shown has a Million times as much capacity and costs 10 bucks. Of course we all know how Moore’s law is driving densities up and price per bit down, but this infamy of selling Gigabytes like peanuts brings it home with some poignancy.

And Below is a similar case, this from our neighborhood general store. Here the Flash Disk-on-key packs are hanging from a shelf alongside Energizer batteries, chocolates, candy and chewing gum packages.

You can bet the core memory stack I show here was not sold with chewing gum…

I never dreamed I’d be blogging a post with the word Eyjafjallajökull in its title…

Anyway, this volcano is belching again, and airports are closing again – and one can’t help but wonder at the shoddy maintenance practices of these Icelanders. I mean, it’s not like they don’t know a volcano needs to be properly maintained; it’s well documented in the literature:

“He carefully cleaned out his active volcanoes. He possessed two active volcanoes; and they were very convenient for heating his breakfast in the morning. He also had one volcano that was extinct. But, as he said, “One never knows!” So he cleaned out the extinct volcano, too. If they are well cleaned out, volcanoes burn slowly and steadily, without any eruptions. Volcanic eruptions are like fires in a chimney.”

- The little prince, ch. 9.

From what we hear Iceland uses its geothermal energy extensively, whether or not they use it for heating breakfast… you’d think they could do the preventive maintenance part too!

When will they ever learn?…

I was busy putting the basement in order and found a box of much used Lego pieces going back to the kids’ childhood, and in it I found – as is – what you see in the photo.

Of course there are Lego kits today for anything from Rocket ships to Medieval castles, but Zaphod Beeblebrox?!…

Here is a striking photo I snapped in Tubingen, in southern Germany, showing a building with a tile roof… bearing a weird pattern:

The cause of the red circle on the roof is unmistakable, the air flows around the chimney… but it is the opposite of what you’d expect, and the details are a bit unclear (considering the darker soot circle around the cleared out area). If you care to speculate, do it in the comments!

Isaac Asimov once wrote a SciFi story named The feeling of Power, in which a future age has become so accustomed to computers that the rediscovery of how to calculate sums with pencil and paper – or in one’s head – is considered a major breakthrough.

That age may be nearer than we think. Recently we went shopping and were told by a pleasant young salesgirl that we’ll get a 10% discount on an item listed at 360 NIS. I figured the final price in my head, while the girl whipped out a rather large desktop calculator and proceeded to pound its keys, displaying the result a few seconds after I’d finished. Not that I claim any arithmetical prowess: it wasn’t like I had to figure 83.45% of 382.44 NIS. Taking 36 from 360 is no big deal.

But I was curious, so I asked the young woman whether she could have figured the result without the calculator; and she admitted she couldn’t have. She didn’t seem embarrassed about it; she sounded as if I’d asked whether she could read cuneiform script, or design a spaceship. Of course she couldn’t; that’s what calculators were for, after all…

We have a McDonald’s in downtown Jerusalem (of course!), but within spitting distance of it there is another kind of fast food restaurant, one that is dear to the hearts of the city’s old time residents. It is the Ta’ami restaurant.

Ta’ami is a tiny restaurant: one room, opening right onto the sidewalk in Shamai street, with a few tables inside. A working man’s eatery, it has no “wait to be seated” rule; in fact, you walk right in and sit on any free chair – not table: unrelated customers are expected to share the same table. No fuss, no niceties, but wonderful food, starting with Hummus that many say is the best in the land (and many others violently disagree; Hummus connoisseurship tends to run to high emotions).

So why is this a fast food joint? Well, here’s how this works: you go in, spy an empty chair, and as soon as your behind hits it, the waiter is at your side, rattling a list of dishes (though most regulars know what they want). You order, and in a minute or so your food is placed before you. No time wasted. But it goes beyond that, thanks to the legendary founder of Ta’ami, the late Mr. Albert Majar, whose photo adorns the wall. Albert came from Bulgaria around 1950, and started his family-run restaurant soon thereafter. His techniques of customer management were famous and cherished in our town. He’d go around the tiny hall and urge the clients to eat faster, to make room for more people to eat. His favorite phrase, “Swallow, don’t chew!”, became so famous that it is now the restaurant’s slogan. He also used to compact tables by switching people from table to table in mid-lunch, thereby freeing contiguous seats for people who came in groups. And so business was brisk, profits presumably grew, and a legend was born.

Not exacly the way they do it at McDonald’s… but what Hummus!

These days vendors have become masters of  trivial warnings, as seen in coffee cups that warn us their content is hot, and countless other examples. Recently I ran into an amusing case.

The little piggy is yet another form of the classic kitchen timer. What makes it interesting is the inscription on its base: “Not dishwasher safe” – in two languages too, not to take any chances.

I suppose there may actually exist people silly enough to try and dunk this along with the dishes… it’s a large planet. Still…