▪️The science of sound – Acoustics

▪️The science of aviation – Aeronautics

▪️The study of man, especially, of the evolution and customs of mankind – Anthropology

▪️The study of human antiquities – Archaeology

▪️The science of heavenly bodies – Astronomy

▪️The science of travel in space – Astronautics

▪️The science of life and living things – Biology

▪️The science of plants – Botany

▪️The art of making pottery – Ceramics

▪️The science of colors –Chromatology

▪️The study of statistics of births, deaths , diseases, etc., of a community – Demography

▪️The art of effective speaking esp. in public – Elocution

▪️The study of insects – Entomology

▪️The science that deals with the variances of the human race – Ethnology

▪️The science of the origin and history of words – Etymology

▪️The study of coins or coinage – Numismatic

▪️The study of birds – Ornithology

▪️The study of mountains – Orology

▪️The study of ancient modes of writing – Paleography

▪️The art of elegant speech of writing – Rhetoric

▪️The science of poisons – Toxicology

▪️Using hypnosis – Hypnotherapy

▪️Using natural things – Naturopathy

▪️Using exercise, massage – Physiotherapy