The Misery of Weightlessness

In the weightlessness of space some things, like jumping, are easy. But life as a whole becomes hard. To steal from Elizabeth Elliot: “In space, astronauts experience the misery of having no reference point, no force that draws them toward the center. The effort of performing ordinary activities without the help of that pull if often … Continue reading The Misery of Weightlessness

Where does milk come from?

Ask students who grow up in the city “Where does milk come from?” and you can anticipate responses like “the grocery store” or “a milk jug.” The students who grow up on farms always get a good chuckle out of this. Doesn’t everyone know that milk comes from cows? But, there is a real sense … Continue reading Where does milk come from?