In 2018 we celebrate the 250th anniversary of the Jędrzej Śniadecki’s birth. This work aims to show the importance of his thoughts for the development of natural sciences. He studied at some of the largest universities in Europe, where he met great scientists of the Enlightenment. The effects can be seen in his works. He was remembered as a founder of Polish biochemistry, anthropology and pathology, also as the author of chemical terminology and language. The essence of his thoughts is Theory of organic being, which is an attempt to answer the question: „what is life?”. Jędrzej Śniadecki introduced a new definition of life based on the term „organic power”. This work shows how import are the thoughts of Jędrzej Śniadecki in the context of the times in which he lived, as well as the following development of natural sciences, what makes him and his theories worth memory.
This year we are celebrating 150 anniversary of the discovery of DNA by Friedrich Miescher. His finding initiated a series of discoveries that allowed to depicts life's most famous molecule with novel features with considerable biological interest. In this article we recall the biggest mile stones of 150-year history of DNA and present the context and meaning of several key observations that have brought us closer to understanding DNA. 150 years ago, people had no idea that DNA existed, and they certainly hadn’t heard of DNA structure and sequencing. We now know that DNA is a dynamic, tortuous coil, constantly shuffling and unwinding. Today DNA is all around us, in a physical sense and in a cultural sense. It is really part of our culture. We will discuss also the little known facts, often overlooked in similar discussions. We will focus particularly on Professor Richard Altmann's from Iława, whose contribution to knowledge about nucleic acids is significant, although not well recognized so far.