yantr

koi bhi yukti jo urja lekar kuchh kaaryakalaap karti hai use yantr ya machine (machine) kehte hain.
itihaas
- Bhardwaj muni krut yantraarnav granth ke vaimaanik prakaran mein di gayi mantr, tantr aur yantr ki paribhaasha-
- mantrajnyaa braahmana: poorve jalavaayvaadistambhane.
- shakterutpaadanan chakrustantramiti gadyate.
- dandaishchachakraishch dantaishch saranibhramakaadibhi:.
- shaktestu vardhakan yattachchaalakan yantramuchyate.
- maanavi paashaveeshaktikaarya tantramiti smrutan - (yantraanarv)
raaja bhoj dvaara rachit samaraaङaganasootradhaar ke 'yantravidhaan' naamak 31vein adhyaaya mein yantron ki visheshataaon aur vibhinn prakaar ke yantron ka varnan hai.
baahari kadiyaaain
- praacheen kaal ke vaigyaanik avishkaar tatha yantr
- yantr shakti (Google pustak ; 175 saral evam susaadhya yantr)
- Bhaarat ka vaigyaanik chintan : maikeniks (kaayanetiks) evam yantr vigyaan