This is of necessity going to be a simple explanation, because the topic is quite complex. Towards the end of the 19th Century, Thomas Edison and Nikola Tesla were engaged in a ‘power struggle’
We have seen defibrillators in action at the movies because they play a life-saving role. First, an actor has an apparent heart attack and their heart stops beating.
Thomas Edison launched his 110 Volt DC grid in 1882 in the face of stiff competition from fellow-inventor George Westinghouse.
Thomas Edison was a serial inventor. He began his career tinkering with telegraphy equipment before inventing the first phonograph that recorded voice.
Film capacitors are functionally similar to ceramic capacitors because they are both non-polarized. We can connect them either way around in a direct current environment.
For a series of historical reasons that we do not go into detail here, we have ended up with one foot in each of the direct and alternating current worlds. This causes some frustration. We can no more power our computers from our car batteries, than we can plug our starter motors into our home […]
The sine wave or sinusoid is a mathematical curve that describes a smooth repetitive oscillation. It is named after the function sine, of which it is the graph. The sine wave occurs often in pure and applied mathematics, as well as physics, engineering, signal processing and many other fields. The sine wave is […]
Polarity is a term used in electricity, magnetism and electronic signaling, just to name a few areas. Polarity is defined as, the condition of a body or system in which it has opposing physical properties at different points, especially, magnetic poles or electric charge. In the case of electric current running between two […]
J Just about every home and business is wired for Alternating Current (AC). However, the decision to use Alternating Current (AC), rather than Direct Current (DC), didn’t happen without a lot of trial and error. In the late 1880s, a variety of inventions across the United States and Europe led to a full-scale battle […]