The reading discusses the issue that the story of the burning mirror is just a myth or not. In the article, it provides three reasons to support; however, the professor disagrees with the point of views in the article for the following reasons.
First of all, the reading states that the ancient Greeks were not technologically advanced so they did not have such the ability to make the device. On the contrary, the professor claims that they can build the device without high technology. The ancient Greeks could use small flat sheet of copper to accomplish the purpose which is proven by an experiment. Moreover, the Greek mathematicians understood the properties of parabolic shape and they could teach people how to place the sheets.
Second, the reading says that it took a long time to set fire on the ships. In contrast, the professor argues that the experiment was conducted by using only wood which takes a long time to burn. In the ancient time, the Roman boat was made not just on wood. In fact, they coated a water-proof material, pitch, on the ships which could be set on fire by burning mirror in seconds.
Finally, the reading mentions that the burning mirror and flaming arrow are similar so they have no need to build burning mirror. The professor refuses that the effect between using arrows and burning mirror is different: the enemy would notice the flaming arrows and they could defend the arrows, but they would be very surprised when they were attacked by the burning mirror.
Grammar and spelling errors:
Line 5, column 260, 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.
...e Roman boat was made not just on wood. In fact, they coated a water-proof materia...
^^
Discourse Markers used:
['but', 'finally', 'first', 'however', 'if', 'moreover', 'second', 'so', 'in contrast', 'in fact', 'first of all', 'on the contrary']
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance in Part of Speech:
Nouns: 0.248251748252 0.261695866417 95% => OK
Verbs: 0.164335664336 0.158904122519 103% => OK
Adjectives: 0.0594405594406 0.0723426182421 82% => OK
Adverbs: 0.0454545454545 0.0435111971325 104% => OK
Pronouns: 0.034965034965 0.0277247811725 126% => OK
Prepositions: 0.115384615385 0.128828473217 90% => OK
Participles: 0.0384615384615 0.0370669169778 104% => OK
Conjunctions: 2.42812635952 2.5805825403 94% => OK
Infinitives: 0.0244755244755 0.0208969081088 117% => OK
Particles: 0.0 0.00154638098197 0% => OK
Determiners: 0.146853146853 0.128158765124 115% => OK
Modal_auxiliary: 0.0244755244755 0.0158828679856 154% => OK
WH_determiners: 0.0174825174825 0.0114777025283 152% => OK
Vocabulary words and sentences:
No of characters: 1510.0 1645.83664459 92% => OK
No of words: 259.0 271.125827815 96% => OK
Chars per words: 5.83011583012 6.08160592843 96% => OK
Fourth root words length: 4.01166760082 4.04852973271 99% => OK
words length more than 5 chars: 0.324324324324 0.374372842146 87% => OK
words length more than 6 chars: 0.243243243243 0.287516216867 85% => OK
words length more than 7 chars: 0.131274131274 0.187439937562 70% => OK
words length more than 8 chars: 0.0926640926641 0.113142543107 82% => OK
Word Length SD: 2.42812635952 2.5805825403 94% => OK
Unique words: 140.0 145.348785872 96% => OK
Unique words percentage: 0.540540540541 0.539623497131 100% => OK
Word variations: 52.9233306043 53.8517498576 98% => OK
How many sentences: 12.0 13.0529801325 92% => OK
Sentence length: 21.5833333333 21.7502111507 99% => OK
Sentence length SD: 46.5367238497 49.3711431718 94% => OK
Chars per sentence: 125.833333333 132.220823453 95% => OK
Words per sentence: 21.5833333333 21.7502111507 99% => OK
Discourse Markers: 1.0 0.878197800319 114% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 3.39072847682 29% => OK
Readability: 45.9076576577 50.5018328374 91% => OK
Elegance: 1.64285714286 1.90840788429 86% => OK
Coherence and Cohesion:
Essay topic to essay body coherence: 0.710545194944 0.549887131256 129% => OK
Sentence sentence coherence: 0.174457393899 0.142949733639 122% => OK
Sentence sentence coherence SD: 0.0731583064479 0.0787303798458 93% => OK
Sentence paragraph coherence: 0.705533845281 0.631733273073 112% => OK
Sentence paragraph coherence SD: 0.100856757728 0.139662658121 72% => OK
Sentence topic coherence: 0.380935496836 0.266732575781 143% => OK
Sentence topic coherence SD: 0.0763053302608 0.103435571967 74% => OK
Paragraph paragraph coherence: 0.447168447713 0.414875509568 108% => OK
Paragraph paragraph coherence SD: 0.0936808514273 0.0530846634433 176% => OK
Paragraph topic coherence: 0.527312433679 0.40443939384 130% => OK
Paragraph topic coherence SD: 0.0178124575258 0.0528353158467 34% => OK
Task Achievement:
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 4.0 4.26048565121 94% => OK
Positive topic words: 3.0 3.49668874172 86% => OK
Negative topic words: 4.0 3.62251655629 110% => OK
Neutral topic words: 2.0 3.1766004415 63% => OK
Total topic words: 9.0 10.2958057395 87% => OK
What are sentences with positive/Negative/neutral sentiment?
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Rates: 70.0 out of 100
Scores by essay e-grader: 21.0 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.