There is now a new article called How Time Works that answers all of these questions about clocks and calendars, plus many more! You will be amazed, because we take all of this stuff completely for granted and the origins are amazing!
Decapitation is a surefire way to deliver a quick and painless death, right? In actuality, an increasingly large body of historical and scientific evidence suggests that beheading doesn't, in fact, deliver instant death.
Imagine waking up one morning to find yourself unable to get to work due to a dead car battery. You won't have to do that if you have a solar car battery charger -- but how well do they really work?