Kalyani Tupkary

Send artists and poets to the depths of the oceans and into outer space, for they give meaning to scientific discoveries. After all, we don’t want to know what things are. We want to know what they mean.—Dr. Lawrence Blair

But while nature may mete out time’s passage in these horological devices, it takes human observation of the heavens to set them. Even the most precise atomic clock must be periodically tweaked to account for variations in the earth’s rotation. Some clocks, however, are tuned more directly to nature.