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Photogate
Meaning
Noun
●
In Physics:
A
device
that
measures
the time between
events
that
interrupt
an
infra-red
beam
Sourced from
Wiktionary
Origin
photogate
English
gate
English
gata
Old Norse
geat
Old English (ca. 450-1100)
photo-
English
Sourced from
Etym
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