1. Involuntary actions like blood pressure, salivation and vomiting are controlled by the medulla.

2. The medulla oblongata, also called the medulla, is the lowest part of the brain and the lowest part of the brainstem.

3. The medulla oblongata or simply the medulla is a long stem-like structure that is part of the brain.

A concave mirror is used in a solar cooker. Specifically, a concave mirror focuses sunlight onto a small area, increasing the intensity of the sunlight and generating heat. This concentrated sunlight is then used for cooking in solar cookers, harnessing solar energy for practical applications.

Dr APJ Abdul Kalam is the undisputed father of India’s missile programme. He was breathed life into ballistic missiles like the Agni and Prithvi. It is too exhausting to track Dr Adbul Kalam’s achievements to date. In the 60s and 70s he was a trail blazer in the space department. In the 80s, he transformed the moribund Defence Research and Development Laboratory in Hyderabad into a highly motivated team.

By the 90s, Kalam emerged as the Czar of Indian Science and technology and was awarded the Bharat Ratna and served as the 11th President of India 2002 to 2007.