May 25 - Left and Right

Left and Right have been hijacked in Google and now retrieve left and right wing politics. One has to look for relative direction to find left and right.   I repeated the search and there's some 'smarts' in Google that now retrieves both concepts.  I knew they were watching me. So in relation to my question about direction, Wikipedia says that: "In situations where a common frame of reference is needed, it is common to use an egocentric view."  I had thought of left and right simply.  I find there are many paragraphs in Wikipedia on this.     I was drawn to the paragraph on Geometry of the natural environment: "The right-hand rule is one common way to relate the three principal directions. For many years a fundamental question in physics was whether a left-hand rule would be equivalent. Many natural structures, including human bodies, follow a certain "handedness", but it was widely assumed that nature did not distinguish the two possibilities. This changed with the discovery of parity violations in particle physics. If a sample of cobalt-60 atoms is magnetized so that they spin counterclockwise around some axis, the beta radiation resulting from their nuclear decay will be preferentially directed opposite that axis. Since counter-clockwise may be defined in terms of up, forward, and right, this experiment unambiguously differentiates left from right using only natural elements: if they were reversed, or the atoms spun clockwise, the radiation would follow the spin axis instead of being opposite to it." This means there is proof of the right-hand rule in nature. There are human cultures with no words denoting the egocentric directions. We use backwards, forwards, up, down and left, right.  They might say "move a bit to the east".   Betterphoto tells me that one of my images won second place in the landscape category.  Here it is - a picture from Winterthur a few years ago.  No azaleas blooming so beautifully this year.