Once in a while, I fantasize about writing a book called ‘Sagan: Demon in a Candle-lit World’. Continue reading “My Sagan Obsession”
In college, many years ago, I once read a little pamphlet that contained some exchanges between Martin Luther and Erasmus, occasioned by Luther’s publishing of a paper called ‘On the Bondage of the Will’. It was a fascinating read on several levels, but one item in particular has stuck in my mind all this time. Erasmus makes the point that, if Luther truly believes that the human will is not free, why in the world would he bother talking about it? Learning about the abject slavery of the human will isn’t needed by those Christians who by the sole grace of God and through no merit of their own have gained freedom, and it won’t do any good for those other poor souls, who are utterly enslaved by sin and are incapable of doing anything at all to change that situation.
It seemed like a pretty good point to me at the time, and still does. However, history shows that Luther did not, in fact, stop talking about it. Score 1 for passion, 0 for logical consistency.
But then again, those who think consistency is some sort of hobgoblin must take some comfort in how few people are afflicted with it. Continue reading “Will the Real Skeptic Please Speak Up? Another Ramble”
We interrupt my ranting for one of those fun little historical items:
If you’ve heard of Foucault’s Pendulum, you probably know it as that ball on the end of a long wire thing people set up in museums and observatories. Once in a great while, it knocks over a peg, proving that the earth does, indeed, rotate on its axis.
How? Pendulums, following Newton’s laws, will swing in the same plane, unless some force acts upon them to cause them do otherwise. But the plane of Foucault’s pendulum slowly changes (in fact, it doesn’t seem to swing in a plane at all, but is observed to swing through a series of slightly curved surfaces.) By a fairly long series of logical steps, it is concluded that the only reasonable way to explain the motion of the pendulum is by the movement of the earth beneath it – it is considered too shocking of a coincidence for the movement to be exactly what would be expected if the earth rotated exactly once a day, yet to have some other cause. In fact, the pendulum also moves differently depending on the latitude in exactly the way it should, if the motion were caused by the earth’s rotation. There’s no other reasonable explanation
Big Whup? What makes this all very interesting is that Foucault demonstrated his pendulum – it was a sensation – in February, 1851.
Galileo died in 1642.