The Detectors on the Spitzer Space Telescope Were Cooled to near Absolute

question 59

Multiple Choice

The detectors on the Spitzer Space Telescope were cooled to near absolute zero in order to:

• A)allow the electronics in these instruments to operate most efficiently.
• B)keep the telescope more nearly stationary.
• C)prevent the infrared radiation from the instruments interfering with the infrared signals fromspace.
• D)improve the angular resolution of the telescope.

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Definitions:

Restorative Theory

A theory suggesting that sleep is necessary for the restoration of physical and psychological health and well-being.

Circadian Theory

A theory that explains the 24-hour cycle in the physiological processes of living beings, including humans, affecting sleep-wake patterns and hormonal releases.

Wears and Tears

The physical and psychological damage or deterioration caused by continuous use or stress over time.

Refractory Theory

A concept in neuroscience that suggests after a neuron has fired, there is a period during which it cannot fire again.