In the lecture, the professor discussed why the arguments mentioned in the reading passage on the impossibilities of building the "burning mirror" is not plausible.
To begin with, the passage claims that the size of a powerful mirror would be enormous and the shape has to be precise, and the technology then was not sufficient. However, the speaker refutes this by saying that mathematicians in Greek were able to construct the parabola-shaped mirror using small pieces of flat copper.
Secondly, whilst the reading material asserts that experiments proved that igniting wood using the mirror is time-consuming, the lecturer points out that the pitch on ships can caught fire in seconds and subsequently spread fire to wood, thus the mirror is highly likely to be effective enough.
Finally, the professor states that although the Roman navy was familiar with flaming arrows and could defend against them, they would be astounded by a "burning mirror", which looks not assaultive. By doing so, the "burning mirror" is much more effective, despite its working distance is not considerably longer than the flaming arrows.
In conclusion, based on the reasons and analysis provided by the speaker, the theories in the passage that the "burning mirror" is difficult to build, it works slow on wood and not advanced compared to flaming arrows do not stand.
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Grammar and spelling errors:
Line 5, column 75, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...ial asserts that experiments proved that igniting wood using the mirror is time-c...
^^
Line 7, column 151, Rule ID: EN_A_VS_AN
Message: Use 'an' instead of 'a' if the following word starts with a vowel sound, e.g. 'an article', 'an hour'
Suggestion: an
...gainst them, they would be astounded by a 'burning mirror', which looks...
^
Transition Words or Phrases used:
finally, however, if, look, second, secondly, so, then, thus, as to, in conclusion, to begin with
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 13.0 10.4613686534 124% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 6.0 7.30242825607 82% => OK
Relative clauses : 8.0 12.0772626932 66% => More relative clauses wanted.
Pronoun: 12.0 22.412803532 54% => OK
Preposition: 29.0 30.3222958057 96% => OK
Nominalization: 1.0 5.01324503311 20% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1187.0 1373.03311258 86% => OK
No of words: 219.0 270.72406181 81% => More content wanted.
Chars per words: 5.4200913242 5.08290768461 107% => OK
Fourth root words length: 3.84690116678 4.04702891845 95% => OK
Word Length SD: 3.1198477679 2.5805825403 121% => OK
Unique words: 130.0 145.348785872 89% => More unique words wanted.
Unique words percentage: 0.593607305936 0.540411800872 110% => OK
syllable_count: 352.8 419.366225166 84% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Interrogative: 0.0 0.116997792494 0% => OK
Article: 7.0 8.23620309051 85% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 5.0 2.5761589404 194% => OK
Performance on sentences:
How many sentences: 7.0 13.0662251656 54% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 31.0 21.2450331126 146% => The Avg. Sentence Length is relatively long.
Sentence length SD: 49.6206013832 49.2860985944 101% => OK
Chars per sentence: 169.571428571 110.228320801 154% => OK
Words per sentence: 31.2857142857 21.698381199 144% => OK
Discourse Markers: 13.8571428571 7.06452816374 196% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 3.0 4.45695364238 67% => OK
Sentences with neutral sentiment: 1.0 4.27373068433 23% => More facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.299260737533 0.272083759551 110% => OK
Sentence topic coherence: 0.139849000036 0.0996497079465 140% => OK
Sentence topic coherence SD: 0.0348183897188 0.0662205650399 53% => OK
Paragraph topic coherence: 0.156418301363 0.162205337803 96% => OK
Paragraph topic coherence SD: 0.0432601980216 0.0443174109184 98% => OK
Essay readability:
automated_readability_index: 19.7 13.3589403974 147% => OK
flesch_reading_ease: 40.01 53.8541721854 74% => OK
smog_index: 11.2 5.55761589404 202% => Smog_index is high.
flesch_kincaid_grade: 15.4 11.0289183223 140% => OK
coleman_liau_index: 14.75 12.2367328918 121% => OK
dale_chall_readability_score: 9.64 8.42419426049 114% => OK
difficult_words: 62.0 63.6247240618 97% => OK
linsear_write_formula: 14.5 10.7273730684 135% => OK
gunning_fog: 14.4 10.498013245 137% => OK
text_standard: 15.0 11.2008830022 134% => OK
What are above readability scores?
---------------------
Rates: 85.0 out of 100
Scores by essay e-grader: 25.5 Out of 30
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.