Compasses show the direction of the magnetic field around a current in a wire. Iron filings align with the field lines. Place wire and compasses, if desired, under document camera or on projector. If ...
The Northern Lights can produce an incredible view! Those colors come from a process that starts well before they appear ...
In a metal like copper, however, the outer electrons swim around freely and are shared by all the atoms. That’s why ...
Traditionally, scientists believed that the charge polarity of the magnetosphere at the equator and the poles was the same, ...
The average Hackaday reader likely knows, at least in the academic sense, what a magnetic field looks like. But as the gelatinous orbs in our skull can perceive only a tiny fraction of the EM spectrum ...
With Zenno’s flagship product – the Supertorquer – onboard, Portal Space Systems will launch the Starburst-1 mission, a highly manoeuvrable spacecraft in late 2026. The purpose of the mission is to ...
As someone who studies materials, Lu Li knows people want to hear about the exciting new applications and technologies his ...
Magnetic fields play an important—if sometimes underappreciated—part in planetary systems. Without a strong magnetic field, planets can end up as a barren wasteland like Mars, or they could indirectly ...
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