Shows the scale of the telescopes by comparing the massiveness of a homemade vs. state-of-the-art whole-building altitude-azimuth mount. It's amazing that some

Shows the scale of the telescopes by comparing the massiveness of a homemade vs. state-of-the-art whole-building altitude-azimuth mount. It's amazing that something that ways 350 tons can be aimed with precision at photographic targets that are constantly moving with the rotation of the earth.