Nlele ule nke Meaney na-elegharị anya, Vulkameter, igwe na-anwale tensile igwe, igwe na-anwale.
● Eserela Nnwale ngwaahịa
A na-anwale ihe niile dị na ụlọ nyocha anyị tupu etinye ya.
Emechara nnwale ngwaahịa
Tupu ịzị nke a ga-anwale, gụnyere usoro rhiological, viones proonesse, njupụta, ịdị elu, ike. A ga-eziga akụkọ na-anwale na ndị ahịa.
