Pulak Sengupta

Abstract

In the last few decades there has been a consensus view that a trans-disciplinary approach is the best, if not the only way to address the big questions in science and technology. As an old-fashioned teacher, I am convinced that the beauty and utility of the trans-disciplinary approach should be inculcated in the young minds of undergraduate and post graduate students (if not in the minds of school students). It is the innate character of the human being to be curious about camera and lenses and to be attracted for photographs. The DSLR cameras of the modern time demonstrate a perfect blend of cutting edge science and technology that manifest itself in the most exquisite form of visual art. In this talk I shall express my partisan view, within my limitation of knowledge, on the application of a DSLR camera and the state-of-the art lenses which can help geological training more attractive and effective. Using my limited photographic skill, I shall touch upon the following aspects:

1. Problem of focusing thin sections with high power objective lenses in optical microscopes

2. Speed and path followed by tiny water droplets in turbulent flows

3. Role of substrate in the condensation process