▪️The science of sound – Acoustics (ध्वनि विज्ञान)

 

▪️The science of aviation – Aeronautics (एयरोनॉटिक्स)

 

▪️The study of man, especially, of the evolution and customs of mankind – Anthropology (मनुष्य जाति का विज्ञान)

 

▪️The study of human antiquities – Archaeology (पुरातत्व विज्ञान)

 

▪️The science of heavenly bodies – Astronomy (खगोल विज्ञान)

 

▪️The science of travel in space – Astronautics (अन्तरिक्ष विज्ञान)

 

▪️The science of life and living things – Biology (जीव विज्ञान)

 

▪️The science of plants – Botany (वनस्पति विज्ञान)

 

▪️The art of making pottery – Ceramics (मिट्टी के पात्र)

 

▪️The science of colors –Chromatology (रंग विज्ञान)

 

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

 

▪️The art of effective speaking esp. in public – Elocution (प्रभाव पूर्ण बोलने की कला)

 

▪️The study of insects – Entomology (कीटविज्ञान)

 

▪️The science which deals with the variances of the human race – Ethnology (चरित्र विज्ञान)

 

▪️The science of the origin and history of words – Etymology (शब्द-व्युपत्ति)

 

▪️The study of coins or coinage – Numismatic ( सिक्कों का अध्यन)

 

▪️The study of birds – Ornithology (पक्षी विज्ञान)

 

▪️The study of mountains – Orology (पर्वतों का अध्यन)

 

▪️The study of ancient modes of writing – Paleography (प्राचीन शिलालेखों का अध्ययन)

 

▪️The art of elegant speech of writing – Rhetoric ( प्रभाव पूर्ण सब्दों का प्रयोग करना)

 

▪️The science of poisons – Toxicology (विषज्ञान)

 

▪️Using hypnosis – Hypnotherapy ( सम्मोहन विज्ञान)

 

▪️Using natural things – Naturopathy (प्राकृतिक विज्ञान)

 

▪️Using exercise, massage – Physiotherapy (बिजली द्वारा इलाज)