panachakki

sangrahaalaya mein rakhi ek panachakki

panachakki (water wheel) vah yaantrik yukti hai jo bahate hue ya girte hue jal ki urja se ghoomkar kisi doosari yukti ko chalaati hai jisse upayogi kaam hota hai. madhyayug mein panachakkiyaaain vibhinn deshon mein kaarkhaanon mein bahut se kaam karateen theen. (inke atirikt pavanachakkiyaaain, jaanvaron ki shakti evam maanavashakti se kaam hota tha). in panachakkiyon ka sarvaadhik upayog anaaj peesakar aata banaane mein hota tha.

baahari kadiyaaain