burning mirror which is a kind of weapon using by Syracuse people
Both lecture and passage discuss about burning mirror which is a kind of weapon using by Syracuse people according to some historians. The text reasons that this was a myth and gives some resons. But the professor refutes the reasons and state that the Greek really used the burning mirror.
First off, the the author posits that at that time, Greek had not the advanced technology to make such a sophisticated weapon especially because such a mirror must be very large and with a precise geometric shape. On the contrary the lectures specifies that the mirror could be made up of thousands pieces of small copper block. She clarifies that an experiment proves that we could build such a mirror and with exact parabolic curvature using many small pieces of metal.
Secondly, the writer makes the point that using this kind of mirror to set the ships alight, needs about ten minutes for focusing the sun rays directly on a point and gives an examples by mentioning an experiment that showed at least ten minutes is needed to set an object on fire. In contrast, the speaker postulates that the object mentioned in text in a piece of wood and there was some material in Roman ships that needed much less time to set alight. She examplifies pitch that is a sticky substance that was used to water proof the ships and explain this substances needs just several seconds to be alight by using burning mirrors.
Finally the text points out that the Greeks did not need use burning mirror. Because they could use flaming arrows to set the enemies ships on fire. Conversely the speaker states that Romans knew this kind of arrows, But they could not see the sun rays. The y only could see the mirrors and all of a sudden some part of their ship set on fire.
All in all the lecture casts doubt on the pints that presented in the article about using burning mirrors by Greeks.
| Post date | Users | Rates | Link to Content |
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| 2023-02-20 | can111 | 60 | view |
| 2023-02-07 | Celia02200059 | 3 | view |
| 2022-12-27 | nikki07hung | 65 | view |
| 2022-12-27 | nikki07hung | 60 | view |
| 2022-10-20 | pativ7 | 90 | view |
- Some parents offer their school-age children money for each high grade they get in school. Do you think it is a good idea? 90
- possibility of living men in the Venus 71
- burning mirror which is a kind of weapon using by Syracuse people 63
- Some parents offer their school-age children money for each high grade they get in school. Do you think it is a good idea? 70
Grammar and spelling errors:
Line 3, column 12, Rule ID: ENGLISH_WORD_REPEAT_RULE
Message: Possible typo: you repeated a word
Suggestion: the
... used the burning mirror. First off, the the author posits that at that time, Greek ...
^^^^^^^
Line 3, column 12, Rule ID: DT_DT[1]
Message: Maybe you need to remove one determiner so that only 'the' or 'the' is left.
Suggestion: the; the
... used the burning mirror. First off, the the author posits that at that time, Greek ...
^^^^^^^
Line 5, column 523, Rule ID: EN_COMPOUNDS
Message: This word is normally spelled as one.
Suggestion: waterproof
... is a sticky substance that was used to water proof the ships and explain this substances n...
^^^^^^^^^^^
Line 5, column 557, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
...ed to water proof the ships and explain this substances needs just several seconds t...
^^^^
Line 7, column 1, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: Finally,
... be alight by using burning mirrors. Finally the text points out that the Greeks did...
^^^^^^^
Line 7, column 78, Rule ID: SENTENCE_FRAGMENT[1]
Message: “Because” at the beginning of a sentence requires a 2nd clause. Maybe a comma, question or exclamation mark is missing, or the sentence is incomplete and should be joined with the following sentence.
...Greeks did not need use burning mirror. Because they could use flaming arrows to set th...
^^^^^^^
Line 7, column 150, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: Conversely,
...rrows to set the enemies ships on fire. Conversely the speaker states that Romans knew thi...
^^^^^^^^^^
Transition Words or Phrases used:
but, conversely, finally, first, if, really, second, secondly, so, at least, in contrast, kind of, on the contrary
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 9.0 10.4613686534 86% => OK
Auxiliary verbs: 7.0 5.04856512141 139% => OK
Conjunction : 11.0 7.30242825607 151% => OK
Relative clauses : 17.0 12.0772626932 141% => OK
Pronoun: 26.0 22.412803532 116% => OK
Preposition: 43.0 30.3222958057 142% => OK
Nominalization: 3.0 5.01324503311 60% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1547.0 1373.03311258 113% => OK
No of words: 333.0 270.72406181 123% => OK
Chars per words: 4.64564564565 5.08290768461 91% => OK
Fourth root words length: 4.27180144563 4.04702891845 106% => OK
Word Length SD: 2.23704576241 2.5805825403 87% => OK
Unique words: 167.0 145.348785872 115% => OK
Unique words percentage: 0.501501501502 0.540411800872 93% => More unique words wanted or less content wanted.
syllable_count: 468.0 419.366225166 112% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 5.0 8.23620309051 61% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 23.0 21.2450331126 108% => OK
Sentence length SD: 59.5494992182 49.2860985944 121% => OK
Chars per sentence: 110.5 110.228320801 100% => OK
Words per sentence: 23.7857142857 21.698381199 110% => OK
Discourse Markers: 8.14285714286 7.06452816374 115% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 7.0 4.19205298013 167% => OK
Sentences with positive sentiment : 2.0 4.33554083885 46% => More positive sentences wanted.
Sentences with negative sentiment : 6.0 4.45695364238 135% => OK
Sentences with neutral sentiment: 6.0 4.27373068433 140% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.339128465184 0.272083759551 125% => OK
Sentence topic coherence: 0.12470835079 0.0996497079465 125% => OK
Sentence topic coherence SD: 0.141302379428 0.0662205650399 213% => The coherence between sentences is low.
Paragraph topic coherence: 0.203029439854 0.162205337803 125% => OK
Paragraph topic coherence SD: 0.135482285193 0.0443174109184 306% => More connections among paragraphs wanted.
Essay readability:
automated_readability_index: 12.4 13.3589403974 93% => Automated_readability_index is low.
flesch_reading_ease: 65.05 53.8541721854 121% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 9.99 12.2367328918 82% => OK
dale_chall_readability_score: 8.0 8.42419426049 95% => OK
difficult_words: 68.0 63.6247240618 107% => OK
linsear_write_formula: 10.5 10.7273730684 98% => OK
gunning_fog: 11.2 10.498013245 107% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
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Write the essay in 20 minutes.
Rates: 63.3333333333 out of 100
Scores by essay e-grader: 19.0 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.