6.7 #Helpers.Ruled Ruled
The Ruled Helper adds background lines for designing with vertical rhythm. Each line corresponds to one line of text. Lines are separated by one vertical rhythm unit (VRU).
- author
- Chris Harvey
- updated
For instance,
playing Ping-Pong on the train, one would find that
the ball obeyed Newton’s laws just like a ball on a table by the track.
So there is no way to tell whether it is the train or the earth that is moving.
The laws of science
should be the same for all freely moving observers,
no matter what their speed. This was true for Netwon’s laws of motion,
but now the idea was extended to include Maxwell’s theory. All observers
should measure the same speed of light, no matter how fast they are moving.
Gravity is not a force
like other forces, but is a consequence of the
fact that space-time is curved by the distribution of mass and energy in it.
An object in a gravitational field experiences the same effects as if it were
accelerating at a rate proportional to the strength of that gravitational field.
Markup
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<div class="h-Ruled">
<p><q cite="https://en.wikipedia.org/wiki/A_Brief_History_of_Time">For instance,
playing Ping-Pong on the train, one would find that
the ball obeyed Newton’s laws just like a ball on a table by the track.
So there is no way to tell whether it is the train or the earth that is moving.</q></p>
<p><q cite="https://en.wikipedia.org/wiki/A_Brief_History_of_Time">The laws of science
should be the same for all freely moving observers,
no matter what their speed. This was true for Netwon’s laws of motion,
but now the idea was extended to include Maxwell’s theory. All observers
should measure the same speed of light, no matter how fast they are moving.</q></p>
<p><q cite="https://en.wikipedia.org/wiki/A_Brief_History_of_Time">Gravity is not a force
like other forces, but is a consequence of the
fact that space-time is curved by the distribution of mass and energy in it.</q>
An object in a gravitational field experiences the same effects as if it were
accelerating at a rate proportional to the strength of that gravitational field.</p>
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