Vol. 21 , n 1-2 (2026)

p.1-4. 

Antes do Livro dos Espíritos: A comprovação da existência do períspirito pelos magnetizadores

p. 5-7

Polímeros condutores: um pouco da sua história

p.8-14

Inquiry-Based Teaching of Acids and Bases in Basic Education: A Contextualized, Low-Cost Approach Grounded in the Three Pedagogical Moments

p.15-22

Electronic flow and density vortices in the H₂ molecule: An analogy with the Navier–Stokes equation

p. 23-32

The chemical bonding in H₂, H₂O and NH₃ molecules: proposing a fuzzy-logic description of electron sharing, localization and bond character