Induction heating is a non-contact process which uses the principle of electromagnetic induction to produce heat in a workpiece. By placing a conductive material into a strong alternating magnetic field, electric current is made to flow in the material, thereby causing Joule heating. In magnetic materials, further heat is generated below the Curie point due to hysteresis losses. The generated current is predominantly in the surface layer, the depth of this layer being dictated by the frequency of the alternating field and the permeability of the material.
The pandemic has inspired a slew of great courses for young artists, like this Bite-Sized Art History course that teaches about President Obama’s official portraitist Kehinde Wiley and shows young artists how to make their own portrait in his style.
For all their amazing growth over the past 25 years, the most impressive thing about the monumental rise of Amazon might be the speed and sophistication of their lightning-fast delivery network. Sometimes it doesn’t even take 24 hours for the idea you ordered to be perched right on your front porch, ready for use. The […]
You could actually watch a Tyrannosaurus Rex walk down your street right now. And no, this isn’t the latest Jurassic Park sequel. Of course, it isn’t real either, just a Google recreation of some pretty realistic looking dinosaurs transplanted right into any environment around you courtesy of augmented reality. Yet it’s just another example of […]
A guy on the Apple discussion forum started a thread titled, “Why do your Charger Cables have the lifespan of a housefly?” That question is probably enough to elicit a whole bunch of head nods from virtually everyone reading this, whether you’re an iPhone user, an Android owner or have virtually any device that needs […]