A little over 2,200 years ago, the Roman navy attacked the Greek port city of Syracuse. According to some ancient historians, the Greeks defended themselves with an ingenious weapon called a “burning mirror”: a polished copper surface curved to focus

The reading and the lecture discuss the burning mirror which was a polished copper weapon used by the Greeks to rebut the roman’s attack 2200 years ago. The author believes that the story of this mirror is just a myth and that the Greeks could not create such a weapon. The professor brings into question the claims made in the lecture. he considers that the technological and scientific reasons presented in the reading are unconvincing.

First, the author comes up with the idea that the Greeks did not enjoy a great technological advance to create the parabolic curvature and the copper specifications of the burning mirror in order to set on fire the enemy's boats. However, the professor argues that by the time mathematicians had figured out what was a parabola which allowed them to build such a curved mirror.

Second, the author states that the mirror needed a large amount of time to set the ships on fire. Besides, with today’s experiments, it has been proved that a piece of wood burns in 30 meters without being in movement. Meanwhile, the professor rebuts this argument by pointing out that the ships had other materials as well such as pitch which catches the fire instantaneously. therefore, it may be the cause of spreading the fire.

Finally, the author contends that the flaming arrows used by the Greeks in war may be enough to burn the roman’s ships. So, they had no need to create a burning mirror. The lecturer, on the other hand, posits that the roman’s troops were ready to put out the known flaming arrows of the greeks, as a result, the greeks may create the burning mirror in order to surprise their enemy with an accurate and sudden attack.

Votes
Average: 8 (1 vote)
Essay Categories

Grammar and spelling errors:
Line 1, column 276, Rule ID: ENGLISH_WORD_REPEAT_BEGINNING_RULE
Message: Three successive sentences begin with the same word. Reword the sentence or use a thesaurus to find a synonym.
... Greeks could not create such a weapon. The professor brings into question the clai...
^^^
Line 1, column 343, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: He
...uestion the claims made in the lecture. he considers that the technological and sc...
^^
Line 5, column 384, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Therefore
...which catches the fire instantaneously. therefore, it may be the cause of spreading the f...
^^^^^^^^^

Transition Words or Phrases used:
besides, but, finally, first, however, if, may, second, so, therefore, well, while, such as, as a result, on the other hand

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 9.0 10.4613686534 86% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 5.0 7.30242825607 68% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 18.0 22.412803532 80% => OK
Preposition: 38.0 30.3222958057 125% => OK
Nominalization: 4.0 5.01324503311 80% => OK

Performance on vocabulary words:
No of characters: 1408.0 1373.03311258 103% => OK
No of words: 292.0 270.72406181 108% => OK
Chars per words: 4.82191780822 5.08290768461 95% => OK
Fourth root words length: 4.13376432452 4.04702891845 102% => OK
Word Length SD: 2.65162278549 2.5805825403 103% => OK
Unique words: 152.0 145.348785872 105% => OK
Unique words percentage: 0.520547945205 0.540411800872 96% => OK
syllable_count: 421.2 419.366225166 100% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 10.0 8.23620309051 121% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 2.0 2.5761589404 78% => OK

Performance on sentences:
How many sentences: 13.0 13.0662251656 99% => OK
Sentence length: 22.0 21.2450331126 104% => OK
Sentence length SD: 59.1274823715 49.2860985944 120% => OK
Chars per sentence: 108.307692308 110.228320801 98% => OK
Words per sentence: 22.4615384615 21.698381199 104% => OK
Discourse Markers: 9.46153846154 7.06452816374 134% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 3.0 4.19205298013 72% => OK
Sentences with positive sentiment : 2.0 4.33554083885 46% => More positive sentences wanted.
Sentences with negative sentiment : 8.0 4.45695364238 179% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.252475058729 0.272083759551 93% => OK
Sentence topic coherence: 0.0853277004091 0.0996497079465 86% => OK
Sentence topic coherence SD: 0.092593811266 0.0662205650399 140% => OK
Paragraph topic coherence: 0.156216320977 0.162205337803 96% => OK
Paragraph topic coherence SD: 0.074507817041 0.0443174109184 168% => OK

Essay readability:
automated_readability_index: 12.5 13.3589403974 94% => Automated_readability_index is low.
flesch_reading_ease: 66.07 53.8541721854 123% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.5 11.0289183223 86% => OK
coleman_liau_index: 10.97 12.2367328918 90% => OK
dale_chall_readability_score: 7.86 8.42419426049 93% => OK
difficult_words: 58.0 63.6247240618 91% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 10.8 10.498013245 103% => OK
text_standard: 11.0 11.2008830022 98% => OK
What are above readability scores?

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Rates: 80.0 out of 100
Scores by essay e-grader: 24.0 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.