21 Sep 2014 18:08
21 Sep 2014 11:41
Video doesn’t always capture the height or angles involved in these sorts of things, but the steepness necessitated having to pass the camera back and forth to allow for the use of both hands while climbing.
18 Aug 2014 5:12
Last week in the middle of an afternoon-turned-evening of tearing up the pavement in their go cart, we look from the front porch to see David coming up the road uncharacteristically slowly. From this distance, it sounds like it’s running OK but he’s barely putting along close to the road’s edge. Something isn’t right. Continue Reading »
05 Aug 2014 4:58
This post is a continuation of Alternating Current Analogies and some references here are made with an understanding of that material.
In physics, power is the rate of doing work. More specifically, it is equivalent to an amount of energy consumed per unit time. Electrical power is commonly measured in units of watts, named for the Scottish engineer James Watt (1736 – 1819). As many people know, the amount of power in a Direct Current (DC) circuit is affected by voltage, current, and resistance. In Alternating Current circuits however, additional factors come into play. I recently wrote about how Inductive and Capacitive Reactance influence the relationship between voltage and current in Alternating Current Analogies. What I didn’t get into there, saving it for now, was how these factors actually create three different types of AC power: real power, reactive power, and apparent power. I had written a little about the concept for some fellow operators here, but I feel it deserves a better breakdown: