Now, it's time for measuring time . . . miniature style. For this blog post, I created six different timekeeping devices, representing centuries of horological development. ("Horology" is my new word of the week. It refers to the art or science of making timepieces or measuring time.) I'll start with the simple analog clock shown below, featuring a white button and a small printed clock face with Arabic numerals. Next is the digital clock with an LED (Light Emitting Diode) display. Using a red Sharpie marker, I inscribed the digit "5" three times in seven-segment font onto a tiny strip of paper, adding a colon between the first and second digits. Then, I inserted this strip into an empty matchbook. For the sundial, I first cut two circles out of cardboard, one measuring 8.0 cm in diameter and the other 4.5 cm. Next, I painted the circles in pale green and purple, respectively. Once the paint was dry, I added Roman numerals to the green circle and cardinal d...