Bond of Union: Building the Erie Canal and the American Empire

Beautiful with any decor, Karastan's Woven Impressions Collection offers a versatile array of luxurious modern rugs inspired by minimalist fabrics. The pattern on this contemporary Karastan rug resembles loosely strung beads flowing to the edge for a bold field of color. Pair it with contemporary textiles or with more traditional Oriental patterns for eclectic contrast.

Two motors and low gearing make for rugged off-road action

Three-stage precision sharpening

Sharpens both straight edge and serrated knives for better than factory sharpness

100-percent diamond abrasives in stages 1, 2 and 3

Advanced micron size 100-percent diamonds in Stage 3

Fast, foolproof results

The Galileo thermometer consists of a sealed glass tube that is filled with liquid and several floating bubbles. The bubbles are glass spheres filled with a colored liquid mixture.

Attached to each bubble is a little metal tag that indicates a temperature. These metal tags are calibrated counterweights.

The bubbles are calibrated by adding a certain amount of fluid to them so that they have the exact same density. So, after the weighted tags are ...