World history is mostly remembered by political leaders who shaped world geographically. We recognize their contribution even if they killed millions of people. On contrary, scientist - known and unknown who worked throughout their lives for betterment of life of humans are greatest people lived on earth. Their constant struggle for finding unknown is palpitating. These sailors of science never worried about their personal health, family, society, religion or finance in pursuit of their goal — TRUTH behind any phenomenon occurring in real-physical or in imaginary-mathematical world!