When the world is on your shoulders, it can be relaxing to remember that we’re just hairless monkeys hurtling through space on a big rock alongside a lot of other rocks. If you find yourself wondering ...
Ask anyone what time means to them, and they will give you a different answer. Benjamin Franklin famously stated that “time is money.” Time for the surveyor can mean being out in the field retracing a ...
Since antiquity, the sky has been thought of as a bowl, or celestial sphere, that's directly overhead. The equatorial coordinate system that astronomers use to find stars and other objects is based on ...