In the case of demarcation of COVID zones in India, Orange is the New Freedom! Lucky enough to fall into this zone, I can now do some things I could not last week. But since my neighbouring zone 5 kms away is Red, there is nothing very exciting I can do. But I suppose it is all in the mind.
But as promised, this blog is not going to be Corona-obsessed. So moving on, it is about traffic lights—where the COVID classification zones in India seem to have had their origin.
Traffic lights were actually invented much before automobiles., to control the movement of horse carriages. (Tongas, camel carts etc. in India sometimes follow traffic lights and sometimes do not. I have never quite figured out if the same rules and fines apply to them as to cars and scooters. But maybe not, for after all, such things come under the Motor Vehicles Act!)
On Dec 10, 1868, the first traffic lights were installed outside the Houses of Parliament in London—red for ‘Stop’, and green for ‘Go’. The idea itself was borrowed from the railways, which had been using lights for its traffic control for quite some time.
The very first traffic lights were gas-fuelled, and were manually controlled by a policeman. But being gas-fuelled, though they prevented road accidents, there were incidences when the traffic lights themselves exploding. It is not known if this led to fatalities, but considering that horse-traffic accidents themselves may not have led to too many fatalities, it may have been a close-run competition.
The early 1900s saw the invention of automobiles and a significant uptick in road traffic, and the need for better systems of traffic management was becoming clear. It was in 1912 that an American policeman Lester Wire, came up with the idea of electric traffic lights, and the first one, based on his design, was installed in Cleveland, Ohio in 1914.
The very first electric traffic lights, like their gas-fuelled predecessors, had only the red and green. Some of them had a buzzer sound in place of the amber light to indicate that the signal was going to change soon.
It was in 1920 that another American policeman William Potts invented the first three-coloured traffic lights and Detroit became the first city to implement them.
But why Red, Green and Orange (or Amber)?
RED: This colour is probably used to symbolize STOP because in many cultures, red symbolizes danger. It makes a lot of sense scientifically also, because Red has the longest wavelength of any colour in the visible spectrum and hence can be seen from a greater distance than any other colour.
GREEN: Originally, in the railways, White was used for the all-clear signal, but train mistook the light of the moon or stars for the “all clear”. This led to derailments and train collisions. And hence, a change was required from White. It seems that it was decided that now Green (which till then used for ‘Caution’) would be used for GO. Also, the green wavelength is next to yellow on the visible spectrum, meaning it’s still easier to see than any colour other than red and yellow.
YELLOW/AMBER/ORANGE: When the Green switched over to mean GO, then it was decided that yellow would be used for caution. Also, yellow is very distinct from the other two colours and hence suitable.
Here is wishing all a rapid move to GREEN and SAFETY!
–Meena



Pencil sketch, V. Raghunathan, using 3B and 4B pencils. 1980.
to Eureka moments, ideas keep our little grey cells ticking away. Sometimes we let these slip away because we are preoccupied with what we feel are more serious or important matters, and sometimes because we feel that the ideas is too inane to pursue.
AESTIVATION, lesser known cousin of hibernation, is ‘summer sleep’– a survival strategy used by many vertebrates and invertebrates to endure arid environmental conditions. Key features of aestivation, like hibernation (winter dormancy) include significant metabolic rate suppression, conservation of energy , altered nitrogen metabolism, and mechanisms to preserve and stabilize organs and cells over many weeks or months of dormancy. Even more than in hibernation, strategies to retain body water are important in aestivation, as dryness or aridity is the key trigger for the summer sleep.
But for a South Indian like me, the most important person-colour association has of course to be ‘MS Blue’, said to be a favourite of legendary singer M.S. Subbalakshmi. This colour became synonymous with her after she started wearing Kanchipuram silk saris of this shade at her concerts. These were specially made for her by Muthu Chettiar, a weaver from Madurai. The savvy businessman that he was, he carefully regulated supplies to ensure enduring demand from Madras high society ladies! It has been clarified that MS Blue is not peacock blue but ‘mid-sea blue’.
At 11.11 by the clock, on the 11th of November every year (pretty palindromic, isn’t it?), at Mainz Germany, the Fools’ Constitution is proclaimed from the balcony of the Osteiner Hotel. This marks the start of the City’s Carnival, which is characterized by people wearing oversized papier-mache heads roaming around the crowds. It seems that this practice started about 80 years ago, but I could not find references as to why “schwellköpp” or ‘swollen-heads’ are an integral part of the festivities.
Imagine needing so much help to get a good night’s sleep! I have grown up in an age when mattresses had very different connotations. Mattresses were filled with cotton, and were usually of the same size and thickness. Often this cotton was carded by hand by itinerant carders who established camp at the house for a few days marked by the twang of their simple tools, and fluff-filled air. The cotton was filled in covers, stitched in with strong thread, and then beaten heartily with sticks to even out the lumps and bumps. All this done with dexterity and the long experience of a traditional occupation. With mechanisation, these occupations were replaced with neighbourhood shops where the same process was done by a simple machine. Now one took one’s old mattresses there to be opened and redone, with dire warnings that the cotton within was not to be mixed up with any other inferior variety!