One Technique That Astronomers Are Now Using to Increase the Amount

question 264

Multiple Choice

One technique that astronomers are now using to increase the amount of detail that can be recorded with telescopes is

• A) spinning huge tubs of mercury, thus producing very large parabolic surfaces at relatively low cost.
• B) antireflective coatings, where the mirror is coated with a substance such as calcium fluorite to reduce the amount of reflected light.
• C) increased size, with mirrors up to 10 m in diameter (far larger than at earlier times), thereby producing greater intrinsic angular resolution.
• D) adaptive optics, where the tilt and shape of mirrors in the telescope are changed many times per second to compensate for atmospheric turbulence.

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Definitions:

Virtue Ethics

An ethical theory that emphasizes an individual's character as the key element of ethical thinking, rather than rules or consequences.

Moral Excellence

The quality of performing actions that are considered ethically good or virtuous, often associated with integrity, honesty, and uprightness.

Ethical Beliefs

The moral convictions or principles that guide an individual's or community's behavior and decision-making.

Utilitarianism

A philosophical concept that holds the best action is the one that maximizes utility, generally defined as that which produces the greatest well-being of the greatest number of people.