Very large array or VLA is one of the modern radio telescope arrays. It consists of 25 27-meter dishes. The antennae can be moved along the arms of a Y-shaped pattern, allowing interferometry with maximum baseline of 36 kilometers. The highest angular resultion that can be reached is about 0.05 arcseconds.
... be lubricated. The acceleration of the gyroscope is best when the precession of the gyroscope is supported and amplified by wrist motion.
It takes a while until one ...