Question

what is hyetograph and what is rain guard​

Answer 1

Answer:

A hyetograph is a graphical representation of the distribution of rainfall intensity over time.

A rain-guard or chappe is a piece of leather fitted to the crossguard of European swords of the later medieval period. ... It is possible that the function of this feature developed to offer added hand-protection to the wielder, or alternatively into a mostly decorative addition to the cross-guard.

Explanation:

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