The reading provides three reasons to show that burning mirror is a myth and the Greeks of the Syracuse could not build such a weapon. The speaker, however, said that the reasons are unconvincing and refute each reason.
First, the passage says ancient Greeks were not advanced enough to build such a large complex mirror. But the speaker states that they don't have to build such a large mirror and several smaller mirrors can mimic the same purpose. The same parabolic curvature is also achievable with some help from a mathematician.
Second, the author states that it takes a long time to set wood on fire at that distance even without considering the ships are on the move. However, the speaker reminds that the ships construction material is not just wood. She explains that there was a sticky material called pitch used to waterproofing the ships and this material catch fire in a matter of seconds.
Third, the author claims that burning mirror was not an improvement over their framing arrow at the time, hence they had no reason to build such a weapon. The speaker objects this reason by saying that the Roman navy was aware of the flaming arrow and would notice the weapon as soon as the Greeks wanted to use them while burning mirror could set their ships on fire without attracting their attention. So, the Romans wouldn't notice until their ship is actually on fire.
The reading provides three
reasons
to
show
that burning mirror is a myth and the Greeks of the Syracuse could not
build
such a weapon. The speaker,
however
, said that the
reasons
are unconvincing and refute each reason.
First
, the passage says ancient Greeks were not advanced
enough
to
build
such a large complex mirror.
But
the speaker states that they don't
have to
build
such a large mirror and several smaller mirrors can mimic the same purpose. The same parabolic curvature is
also
achievable with
some
help
from a mathematician.
Second, the author states that it takes a long time to set wood on
fire
at that distance even without considering the
ships
are on the
move
.
However
, the speaker reminds that the
ships
construction material is not
just
wood. She
explains
that there was a sticky
material called
pitch
used
to waterproofing the
ships
and this material catch
fire
in a matter of seconds.
Third, the author claims that burning mirror was not an improvement over their framing arrow at the time,
hence
they had no
reason
to
build
such a weapon. The speaker objects this
reason
by saying that the Roman navy was aware of the flaming arrow and would notice the weapon as
soon
as the Greeks wanted to
use
them while burning mirror could set their
ships
on
fire
without attracting their attention.
So
, the Romans wouldn't notice until their
ship
is actually on
fire
.