Few school teachers were good, many could only teach whatever they knew. So syllabus kept on changing, passing marks went down and down. That’s from personal experience in helping correct school papers for my family members: I have my Dad, Uncles, Aunts, both Grandpas and latest my sister joining the teacher’s group! Sometimes my Dad […]

Each of the V-shaped structures is a collection of stiff hairlike protrusions that bend back and forth in response to vibrations from sound pressure waves. The three prominent rows show the hairs of the receptor cells that detect very weak vibrations and amplify them so they can be better detected by the cells in the […]