Simplicity before Greed

Water pitchers at the Science Museum, London

Most cafeterias sell water to their thirsty customers in plastic bottles full of mineral water. The water is no better than the tap water in most countries, its environmental impact is dubious, and of course it turns a tidy profit for the business. As a customer I find it annoying to pay for one of … Read more

That’s progress for you!

That's progress for you! 3

Check out this humble black marker pen. What about it, you ask? Well, look at the close up: this marker marks most surfaces, is waterproof, practically odorless, safe… and has a cap off time of up to two weeks without drying up. What about it, you ask? Just think of the hi-tech perfection that this … Read more

A building that looks the part

The Physics and Mathematics faculty building of Bashkir State University

Here is the Physics and Mathematics faculty building in Bashkir State University, in the city of Ufa, capital of the Republic of Bashkortostan, Russia. See what it looks like? Depends on your age or your affection for the history of computing, I suppose.  This building looks like a logarithmic slide rule, the icon of the … Read more

Broken remnants of past skylines

Broken TV Antennas

  I happened to look up and noticed this against the evening sky: These skewed towers with the broken antennas on top used to densely decorate every city rooftop when we were kids; every apartment needed an antenna, and the taller its tower, the better the reception – less “snow” and other interference in receiving … Read more

A lovely 18th c. gauging slide rule

The art of Gauging and Ullaging,  i.e. assessing the quantity of  liquor, beer or malt in a barrel in order to tax it properly, used to be an important application of mathematics, and resulted in the development of some intricate computing devices over the last few centuries. Check the new article on my History of … Read more

Most amazing pencil case ever

Ashtanur pencil case

This is the Ashtanur pencil case. Once you see it, you can’t help wanting one: it is simply too cool! So I got one, and here it is. These are made by two designers, my friend Ido Mohar and Baruch Mogilevsky, in mimicry of the local flat pita bread – called Ashtanur in Jerusalem, but … Read more

Right Door, Left Door

Here is a photo I snapped in a kitchen area in a company I visited. See what’s wrong? The refrigerator sits close to the wall on the left, and its door opens to the right (handle on its left side). Which means the person opening this door has to do a little dance to get … Read more

A new way for elevators to crash

When Elisha Otis invented the ‘safety elevator’ mechanism in 1852, elevator crashes have become a rare event indeed. But these days “crash” has a new meaning, which Otis couldn’t have foreseen. Consider the elevator in the photo, from the Azrieli towers in Tel Aviv. It has a wonderful new control system with a large computer … Read more