To search this blog

Tuesday, March 19, 2024

Visual Acuity ! - Thavana 3 2024 : கண்ணனையே காண்க நங்கண்.

Are you a bespectacled person ? – besides the innumerable troubles, often we sit in a corner at Eye clinic to read from the board and confess often, not being able to read the last line or even the penultimate or  .. .. or !!  Head of 6/6 vision of 20/20 vision !  It is about Visual acuity. 

Ever wondered what should our Eyes see ! – what is worthy of vision !?! 

20/20 vision is a term used to express normal visual acuity (the clarity or sharpness of vision) measured at a distance of 20 feet.  A visual acuity of 6/6 is frequently described as meaning that a person can see detail from 6 metres (20 ft) away the same as a person with "normal" eyesight would see from 6 metres.  Away  scientists are trying to de-ice Euclid's vision from a million miles away.   

Euclid, tasked with unveiling the dark Universe's secrets, has encountered a hurdle: microscopic layers of water ice are clouding its view. This challenge, stemming from the spacecraft's exposure to the harsh cold of space, demands unprecedented precision for its mission's success. Efforts are now underway across Europe to implement a novel de-icing procedure designed to restore Euclid's clarity and maintain its optical systems for the duration of its orbital life.  Similar to how drivers remove ice from their car windshields in winter, the European Space Agency's (ESA) scientists are embarking on a unique mission to "de-ice" the Euclid observatory's telescope mirrors, situated over a million miles from Earth. These ice layers, though only as thick as a strand of DNA, have led to "a small but progressive decrease" in starlight detection, as noted by ESA in a recent announcement.  

In humans and a number of other mammals, light enters the eye through the cornea and is focused by the lens onto the retina, a light-sensitive membrane at the back of the eye. The retina serves as a transducer for the conversion of light into neuronal signals. This transduction is achieved by specialized photoreceptive cells of the retina, also known as the rods and cones, which detect the photons of light and respond by producing neural impulses. These signals are transmitted by the optic nerve, from the retina upstream to central ganglia in the brain.  Complex !!  

Vision is the complex, multipart process that gives you your sense of sight. Vision itself doesn’t happen in your eyes. Instead, it’s the sum of your eyes, retinas, optic nerves and brain working together to process reflected light from the world around you. Vision is the process where your eyes and brain work together and use light reflecting off things around you to create the ability to see. It’s one of the five main senses and a key contributor to how most people understand the world around them.  Vision starts when your eyes detect light and turn it into coded nerve signals, which then travel through your optic nerves to your brain. Your brain receives and decodes the signals, and turns them into the pictures you see.  

Thavana uthsava bungalow had its pristine glory.  At Thavana Uthsava Bungalow, Perumal  takes rest under the roof made of dhavanam  (Tamilதவனம்) [Artemisia pallens] – an aromatic herb in genus of small herbs or shrubs, xerophytic in nature.  This herb pervades great aroma and provides coolness.   

To those who have had the pleasure of worshipping Emperuman, what else is there in life, than uttering the various names of Sriman Narayana.  Sri Peyalwar suggests   us  : -


நாமம் பலசொல்லி நாராயணா என்று *

நாமங்கையால் தொழுதும் நன்னெஞ்சே. - வா,* மருவி

மண்ணுலகமுண்டுமிழ்ந்த வண்டறையும் தண்டுழாய்*

கண்ணனையே  காண்க நங்கண்.

பேயாழ்வாரின்  அமுத வரிகள் :  ஸ்ரீமன் நாராயணின்  திருநாமங்களைச் சொல்லி, அழகிய கையினாலே, அவனையே நாம் தொழுவோம்.  வண்டுகள்  ஒலிக்கும்  குளிர்ந்த திருத்துழாய் மாலையையுடையவனுமான, பூமி முதலிய லோகங்களை  உண்டு உமிழ்ந்த, திவ்யஸ்ரீ கண்ணபிரானை மட்டுமே நமது கண்கள் காணட்டும். 

Sri Peyalwar guides us by asking his Heart to praise Sriman Narayana with affection, reciting His many names.  There is no other way to salvation than folding our hands and praying to the Lord Krishna adorning thulasi garland containing humming bees. The Lord who swallowed the Universe and remade the earth is the only worthy reason for our eyes.  

Here are some photos taken during the evening purappadu of Thavana Uthsavam day 3. 
~ adiyen Srinivasa dhasan.
Mamandur Veeravalli Srinivasan Sampathkumar

No comments:

Post a Comment