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I

• Then the pulse decays (away).

• Later on, interest in theoretical ideas about the nature of matter waned (or subsided).

• The curve slopes down from 0°C toward the eutectic point.

• The charge and the voltage decay with the same time constant.

• When the speed falls (or drops) below this level, ...

• The observation curves fall off steeply.

• The current grows to two maxima in opposite directions and dies away to two minima during each cycle.

II

• Sand may be deposited as the wind dies.