Both the lecture and the reading passage are about the burning mirror. The author of the reading passage feels that the Greek port city of Syracuse were not able to develop a weapon, a burning mirror and used during wartime. However, the lecturers cast doubts with the opinion of the reading passage and assert that they are able to make weapons and used during the wartime.
First of all, the author of the reading passage contends that ancient Greek was not in a higher rank in technology to make such a weapon. The article mentions that a mirror capable of focusing the sunlight should be wide enough and parabolic in shape. However, the lecturer challenges these specific pieces of evidence. He says that the small pieces of copper assembled together to develop a copper of wider plate. Additionally, he says that after assembling into a single shape, it looks like a parabola.
Secondly, the writer argues that it will take long enough time to set fire on ships. In the article, it is mentioned that about 10 minutes of time is required to set fire on a wooden ship about 30 meters away from the burning devices. The lecturer, however, rebuts this by mentioning they used other materials so that they can set a fire within a second.
Finally, the writer claims that the Greeks of Syracuse already used a flaming arrow to set fire so they didn't use any burning mirror as they are useless. The speaker contradicts this point by mentioning a burning mirror is a very useful weapon and can set a fire within a short period of time.
In conclusion, the speaker challenges the claims presented in the reading passage and suggests that Greek Syracuse were responsible for developing a burning mirror.
Both the lecture and the
reading
passage
are about the
burning
mirror. The author of the
reading
passage
feels that the
Greek
port city of Syracuse were not able to develop a
weapon
, a
burning
mirror and
used
during wartime.
However
, the lecturers cast doubts with the opinion of the
reading
passage
and assert that they are able to
make
weapons
and
used
during the wartime.
First of all
, the author of the
reading
passage
contends that ancient
Greek
was not in a higher rank in technology to
make
such a
weapon
. The article mentions that a mirror capable of focusing the sunlight should be wide
enough
and
parabolic in shape
.
However
, the lecturer challenges these specific pieces of evidence. He says that the
small
pieces of copper assembled together to develop a copper of wider plate.
Additionally
, he says that after assembling into a single shape, it looks like a parabola.
Secondly
, the writer argues that it will take long
enough
time to set
fire
on ships. In the article, it
is mentioned
that about 10 minutes of time
is required
to set
fire
on a wooden ship about 30 meters away from the
burning
devices. The lecturer,
however
, rebuts this by mentioning they
used
other materials
so
that they can set a
fire
within a second.
Finally
, the writer claims that the Greeks of Syracuse already
used
a flaming arrow to set
fire
so
they didn't
use
any
burning
mirror as they are useless. The speaker contradicts this point by mentioning a
burning
mirror is a
very
useful
weapon
and can set a
fire
within a short period of time.
In conclusion
, the speaker challenges the claims presented in the
reading
passage
and suggests that
Greek
Syracuse were responsible for developing a
burning
mirror.