He is a grandfather of space flight.
He didn't go to school, due to deafness, and hence taught himself mathematics and physics, and thus developed love for the subjects.
He became a recluse, due to his deafness. Made a living by teaching mathematics in local school.
Loved to ride bicycle. Made experiments with various flying machines, e.g. dirigables, of which there are many models in his home in Kaluga.
- Read his philosophical works
- Visit his home in Kaluga