Gravitational waves are caused by big cosmic events. In this post, it’s explained what are they, how are produced and how they can be detected.
Geiger-Müller counter: how does it work?
This post’s subject is Geiger-Müller counter. An instrument invented in 1908, which identifies radioactive objects and measures ionizing radiation level.
Magnetic circuits analysis
In this post, are shown the necessary concepts to make analysis of magnetic circuits, which is very similar to that of electric circuits.
Astronomers observed a star devouring a planet
For the first time, telescopes observe a planeta 10 times heavier than Jupiter being swalloed by a star at 12,000 light-years of distance.
Arduino with Bluetooth module HC-05
In this post, it’s shown how to control an Arduino with a smartphone using an easy method, through a Bluetooth module HC-05 or HC-06.
Hysteresis: what is it?
The hysteresis is very common on materials and systems. It’s the capacity to keep a property, after remove the stimulus that induces this property.
The beginning of JUICE mission
JUICE is a long mission of European Space Agency (ESA), to explore Jupiter and it’s three biggest moons: Ganymede, Calisto and Europa.
Successful test of RLV LEX
The RLV LEX is a reusable vehicle with autonomous landing for space missions. Was built by the Indian Space Research Organization (ISRO).
James Webb measures an exoplanet’s temperature
For the first time, James Webb Space Telescope (JWST) measures the temperature of an exoplanet of star system TRAPPIST-1, and it’s 230ºC (446ºF).
Omnidirectional Mecanum wheels
Vehicles with Mecanum wheels can move in all directions, using less time and space. The operation of these wheels is this post’s subject.
