Pendulums, Greenwich and railway time, atomic clocks and phones, sentence 8

Today a quartz crystal in a watch wiggles 32,768 times a second, and atomic clocks count the "ticks" of caesium atoms so exactly they'd lose less than a second in millions of years.

Who acts: quartz crystal, atomic clocks, ticks · What happens: wiggle, count, lose, tick · To what, where: ticks, millions, caesium atoms

This is a sentence of the lesson «Pendulums, Greenwich and railway time, atomic clocks and phones» of the world course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (quartz crystal, atomic clocks, ticks), what happens, when and where, as Mova's frames read it from the tree.

The tree

Pragmatics

form

statement

act

assert

voice

narrator

polarity

none

teacher

kept the draft

One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/world/123-pendulums-greenwich-atomic-clocks/8/