Sun duration sensor

From Object Wiki

Sun duration sensor
Manufacturer	(unknown)
Production years	1997
Production location	(unknown)

Sun duration electronic sensor, When the Sun is more active, it emits more light and heat. The variations are subtle (about 0.1%) but nevertheless significant. Satellite measurements indicate that the effect of the Sun has been to contribute to a relative cooling over the last 30 years.

[edit] How it works

Photoelectric cells form the sensor, and duration is measured in a data collector nearby

[edit] Memories

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[edit] In the Science Museum's Records

Inv. No: 1997-1016