Satish Dhawan (1920–2002) was an Indian aerospace engineer and educationist who played a pivotal role in India’s space program. As Chairman of the Indian Space Research Organisation (ISRO) from 1972 to 1984, he oversaw key milestones including the launch of India’s first satellites and the development of the SLV-3 launch vehicle. A pioneer in experimental fluid dynamics and boundary layer theory, he also served as Director of the Indian Institute of Science, Bengaluru. Dhawan is remembered for combining scientific excellence with visionary leadership, laying the foundations for India’s indigenous space technology.
Bruce Carl Berndt (born 13 March 1939) is an American mathematician renowned for his contributions to analytic number theory and for his pioneering work on the legacy of Indian mathematician Srinivasa Ramanujan. As Professor Emeritus at the University of Illinois at Urbana-Champaign, Berndt devoted decades to editing, proving, and publishing Ramanujan’s previously unpublished results, culminating in the acclaimed five-volume series Ramanujan’s Notebooks. His meticulous scholarship not only preserved Ramanujan’s work but also integrated it into modern mathematics, earning him global recognition as the foremost authority on Ramanujan’s mathematical contributions.
Leonard Digges (c.1515–c.1559) was an English mathematician and surveyor, credited with significant contributions to practical geometry, land surveying, and optical science. He authored works such as Tectonicon, Pantometria, and Prognostication Everlasting, which dealt with measurement, instruments, and astronomical calculations. Digges is often associated with the early development of the theodolite and has been linked, though with limited evidence, to the concept of the telescope before its official invention. His son, Thomas Digges, expanded on his father’s ideas and became known for promoting the Copernican heliocentric model in England. He designed theodolite.
Elias Loomis (1811-1889) was an American mathematician and astronomer. He was a mathematics and natural philosophy professor at Western Reserve College (now known as Case Western Reserve University) in Ohio. Loomis significantly contributed to astronomy, particularly in the United States, during the 19th century.