November 18, 202023 min read, 4505 words
Published: November 18, 2020 | 23 min read, 4505 words
In a small town in Germany, a man named Otto Lilienthal had been studying and sketching birds for about twenty years. He had dozens of notebooks, all filled with drawings of different birds in flight, of birds, rising, soaring, and landing. There were drawings of the wings of bir...