Explain the physical meaning of poissons ratio

What is the picture about?

When Years of Academic Success Became a Tale of Failure!!

Aahan, a student, has always been deeply ingrained withacademic successin his life. From a young age, he was taught that hard work and dedication were the keys to achieving the goals. As a result, he dedicated countless hours to studying, completing assignments, and striving for top grades.The thrill of academic achievement was intoxicating. Each high grade was a validation of...

The Moon

Silent and still, the moon shines bright
In the dark, clear sky
Peaceful and calm, the night
A soothing balm to the weary eye

The moon, a glowing orb of light
Illuminates the path ahead
As the night wind whispers through the trees
And the stars twinkle overhead

So let us lay down and rest
And let the moon and night provide
The peacefulness and solitude
That we all need to feel alive