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Welcome to Blog do Mala
Old

Repulsion between an electromagnet and a permanent magnet - what is the limit?

Posted 05-29-2024 at 12:43 PM by MalaMan (Blog do Mala)

Back in 2019 I created a thread in the Science subforum of City-Data Forum titled Is there any theoretical limit to the magnetic field strength of permanent magnets?

In that thread I asserted that:

Quote:
Given that in a system where an electromagnet made from an air core coil (electromagnet without a ferromagnetic or ferrimagnetic core) is in repulsion against a permanent magnet, the stronger is the magnetic field of the permanent magnet the stronger will be the force
...
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Old

How is it to live in Fortaleza, Brazil?

Posted 05-18-2022 at 02:27 PM by MalaMan (Blog do Mala)
Updated 05-22-2022 at 11:02 AM by MalaMan

Since this is City-Data Forum, nothing better than talk a bit about the city where I live. Although I was not born in Fortaleza I have lived in this city for more than 95% of my life. All my personal cultural background was formed in Fortaleza. And talking about Fortaleza is always talking about mixed feelings. There are many things to love in this city, but also things to hate.

Fortaleza, for those who don't know, is a big city of more than 2.7 million people (more than 3.5 million...
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Old

What is MalaMan?

Posted 06-05-2021 at 06:37 PM by MalaMan (Blog do Mala)

What "MalaMan" means, after all?

MalaMan was a kind of joke that some people in Northeastern Brazil used in order to make fun of some other people, calling them "MalaMan" as a reference to superheroes like "Spider-Man", or "SuperMan". The real point after all was to call someone a "mala".

In this specific context, what "mala" means in Brazilian Portuguese? It's very hard to explain in English what "mala"...
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Old

Hello World

Posted 08-29-2020 at 01:59 PM by MalaMan (Blog do Mala)

What is a City-Data Forum blog?
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