Neste trabalho, o minissatélite de lata, o CanSat, é aplicado como ferramenta pedagógica para estudo dos fundamentos da Física e tecnologias. A estrutura completa, conexões elétricas e telemetria foi desenvolvida por grupos de estudantes de engenharias orientados dentro de um projeto de pesquisa institucional, sem utilização de pacotes fechados ou estruturas pré-moldadas, no sentido de trabalhar desafios na problematização e conceitos de autonomia de grupo.

A simple and cheap optical analog computed tomography (CT) system, useful for teaching x-ray CT for physics, medical physics and engineering physics students without applying ionizing radiation is presented. White spectrum of a light emitting diode (LED) source was characterized by using an in-house constructed spectrophotometer. A simple electronic hardware, utilizing a synchronization of an universal serial bus webcam and direct current (DC) motor was developed in such a way that, a single click on the record video button of the webcam software is enough to run the tomograph. Finally, the two- and three-dimensional tomography reconstructions are briefly discussed and presented.

As a major international public health emergency, COVID-19 has posed many challenges for healthcare professionals who have been heavily exposed to contamination. This article describes the development of a high-filtration capacity mask consisting of filter-element layers interspersed with super-activated carbon fiber fabric, non-woven polypropylene for dental–medical–hospital use and antiviral polyamide with nanostructured SiO2 thin film coating. The study found 98.18% particle filtration efficiency and determined 2.11 mmH2O/cm2 differential pressure, while fluid repellency complied with Brazilian standard NBR ABNT 15052:2004.