People who live in the vicinity of cliffs and mountains soon discover the powerful beauty of
straight lines, which determine the trajectories of both light and sound. Early every morning, when I wander up the road with
Fitzroy for our habitual 20-minute excursion (giving the dog an opportunity to do his poo, generally on the neighbor's territory), there's a surprising moment when Fitzroy suddenly halts, gazes down into the valley, and acts for half-a-minute as if he were expecting a motor vehicle to appear on the scene. The explanation is simple, although the abundant foliage tends to conceal the facts. Over a short section of our itinerary (no more than a few meters), a straight line connects us to the main road down alongside the Bourne. And if, by chance, a vehicle happens to be moving along the road at that moment, then we can hear the sound of it quite clearly, creating the impression that this vehicle might indeed be heading up the road towards Gamone. Funnily, Fitzroy seems to have realized by now that the ghost vehicle, whose presence he has sensed, is only an illusion, and that there's no point in lying flat alongside the road to await its arrival. But he stills gets tricked for a few seconds, whenever our arrival at that spot coincides with the passage of a vehicle down in the valley. I don't know what kinds of principles of mathematics and physics float around in Fitzroy's mind, but I feel that he has mastered the problem from a pragmatic viewpoint.
Euclid
Straight lines were invented, as it were, by
Euclid, who flourished in Alexandria during the reign of
Ptolemy I, some three centuries before the start of the Christian era. In Euclidean geometry, the very first axiom postulates that a straight line can be drawn from any point to any other point. But the universe seems to have mastered the question of straight lines well before Euclid started to think about them... although we now know that a so-called straight line is a simplified version of more generalized entities called
geodesics, which play a fundamental role in general relativity.
Einstein
In our villages, towns and cities, straight lines are relatively recent artificial constructions. In the beginning, most village lanes had lots of bends in them, like creeks and rivers. In Paris, the civic planner
Georges-Eugène Haussmann [1809-1891] spent a colossal amount of public money in the creation of straight avenues, ostensibly so that troops would find it easier (if need be) to handle throngs of rioters. And even today, many Parisians speak of this self-proclaimed "Baron" as if he had committed an unforgivable sin in straightening and widening the thoroughfares of the city.
Haussmann
Personally, I'm horrified by the Euclidean linear layouts of cities in the New World, particularly when the streets are numbered and labeled as north, south, east or west. On the contrary, I'm always awed to discover, on late summer evenings, that the setting Sun has succeeded in finding a linear itinerary through the slopes above Pont-en-Royans enabling our faithful star to illuminate the limestone cliffs of the Cournouze, for a few fleeting minutes, with a warm reddish glow. Euclid imagined that all straight lines are basically of the same nature. As for me, I prefer those of Choranche to those, say, of Manhattan. And, if we were to think of Euclid's straight line as an abstract archaic god (why not?), we might say that its temple is
Stonehenge.
Within five minutes, the cloud layer was starting to reflect the pale light of the rising sun upon the trees on the slopes of the valley of the Bourne.
Five minutes later, the Technicolor show was over. One has to act rapidly to obtain images such as these. Often I say to myself that my Antipodes blog has started to instill in me something akin to the reflexes (but not, alas, the skills) of a photographer.
In the capital, to my mind, a man would have to be totally crazy to sit around with a bare bum in the mist and snow. But Paris, as we all know, is full of crazy folk...
I became aware that the global situation in France was particularly catastrophic when Natacha phoned me up, a few days ago, to say that she couldn't even go to work, alongside the splendid ecclesiastic citadel of the Bonne Mère, because Marseille was covered in snow.
I've been watching the slopes of Gamone from my bedroom window, wondering how long it might take for the snow to disappear.
My donkeys Moshé and Mandrin, protected by thick layers of fat and fur, have not been particularly troubled by the current conditions. The last few millennia of evolution have resulted in their using their front legs to claw at the icy snow and get through to grass. As for my beloved billy-goat Gavroche, he dines delicately in an Epicurean manner on weeds whose tiny heads emerge from the blanket of snow.
Meanwhile, from my bedroom window, I look down upon the rough stone wall built by François and me, and I watch the big blobs of snow melting, and losing their grip.
