July 25th, 2021

лошадь, диаграмма, Фейнман

Физика на Ардуино и другие методические статьи

Teaching Physics by Arduino during COVID-19 Pandemic: Oscillation of a simple pendulum: https://arxiv.org/abs/2107.10792
Fausto Casaburo
The COVID-19 impacted the teaching; indeed, both schools and universities had to shift from face-to-face to distance teaching organizing on-line lectures. Thanks to easily accessible materials, smartphones physics apps, on-line toolsand devices, it's possible to perform laboratory practice even in this period. In this paper, a method to measure the gravitational acceleration by oscillation of a simple pendulum, using Arduino board, is presented.

Enhance your smartphone with a Bluetooth Arduino nano board: https://arxiv.org/abs/2107.10531
F. Bouquet, G. Creutzer, D. Dorsel, J. Vince, J. Bobroff
Using smartphones in experimental physics teachings offers many advantages in term of engagement, pedagogy and flexibility. But it presents the drawbacks of possibly endangering the device and also facing the heterogeneity of available sensors on different smartphones. We present a low-cost alternative that preserves the advantages of smartphones: using a microcontroller equipped with a large variety of sensors that transmits data to a smartphone using Bluetooth Low-Energy protocol. This device can be lent to students with little risks and used to perform a wide range of experiments. It opens the way to new types of physics teachings.

Teaching Physics by Arduino during COVID-19 Pandemic: Measurement of the Newton's cooling law time-constant: https://arxiv.org/abs/2107.09527
Fausto Casaburo
Due to the COVID-19 pandemic, schools and universities had to the shift from face-to-face to distance teaching, organizing on-line lectures. Easily accessible materials, smartphones physics apps, on-line tools and devices can be used to perform laboratory practice even in this period. In this paper a method to measure the Newton's cooling law time-constant by Arduino board is presented.

Brewster angle as never seen before: https://arxiv.org/abs/2107.07806
Alejandro Doval, Raúl de la Fuente
In this paper we will discuss a demonstration we have been performing for years; not only with physics students from our university (Universidade de Santiago de Compostela), but also with high school students in some talks aimed at encouraging them to study science. It is related to Brewster's angle and its visualization in an ingenious way using a "loaded" LCD monitor. In some way, this experiment is a reverse version of what happens when a vampire faces a mirror and sees no reflected image of himself.

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лошадь, диаграмма, Фейнман

Снова об СТО и о том, почему нельзя превысить скорость света (от Зураба Силагадзе)

Relativity 4-ever? https://arxiv.org/abs/2107.10739
Olga Chashchina, Zurab Silagadze
It is not an easy task to talk about breaking the light speed barrier as it can raise various false rumors, especially after the sad story of OPERA experiment. However, after having published a paper on the subject arXiv:1112.4714, we decided to try to present it here in a rather entertaining manner.
Comments: 22 pages, prepared for the journal Inference: International Review of Science

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