submarines detecting quackers
The article is a report of strange underwater noises that Russian submarines encountered when patrolling the North Atlantic and Arctic Ocean during 1960s through 1980s. These sounds were called "quackers" and the essay represents some theories about the possible origins of them. The lecturer contradicts the points made in the article and illustrares why none of them are plausible.
Firstly, Orca whales mainly live near the surface of the ocean and if the the sounds originated from them, the submarines would have not been able to detect them from deep in the ocean. Moreover, if thee Orca whales were nearby the submarines' sonar would have picked up their presence.
Secondly, the quackers were first detected in the 1960s and continued for two decades until the 1980s; while the giant squid has occupied the ocean long before and after the existence of the sounds. Hereby, there is no explanation for a sudden detection and ceasing of the sound if we assume it was caused by the giant squids.
Finally, it is not plausible that the quackers were originated from any military technology on the basis that the quackers would change directions quickly and no engine sound was detected accompanying them. Even today, Such fast submarines with extremely silent engines have not been manufactured. On the other hand, another submarines' presence would have been recognized on the sonar.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2023-06-09 | Zmx_6 | 80 | view |
| 2023-06-09 | Zmx_6 | 83 | view |
| 2023-06-09 | Zmx_6 | 83 | view |
| 2022-12-25 | nikki07hung | 3 | view |
| 2022-12-25 | nikki07hung | 61 | view |
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Grammar and spelling errors:
Line 1, column 142, Rule ID: IN_1990s[1]
Message: The article is probably missing here: 'during the 1960s'.
Suggestion: during the 1960s
...ing the North Atlantic and Arctic Ocean during 1960s through 1980s. These sounds were called...
^^^^^^^^^^^^
Line 3, column 71, Rule ID: ENGLISH_WORD_REPEAT_RULE
Message: Possible typo: you repeated a word
Suggestion: the
...ve near the surface of the ocean and if the the sounds originated from them, the submar...
^^^^^^^
Line 3, column 71, Rule ID: DT_DT[1]
Message: Maybe you need to remove one determiner so that only 'the' or 'the' is left.
Suggestion: the; the
...ve near the surface of the ocean and if the the sounds originated from them, the submar...
^^^^^^^
Line 3, column 233, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'submarines'' or 'submarine's'?
Suggestion: submarines'; submarine's
...er, if thee Orca whales were nearby the submarines sonar would have picked up their presen...
^^^^^^^^^^
Line 7, column 326, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'submarines'' or 'submarine's'?
Suggestion: submarines'; submarine's
...anufactured. On the other hand, another submarines presence would have been recognized on ...
^^^^^^^^^^
Transition Words or Phrases used:
finally, first, firstly, if, moreover, second, secondly, so, while, on the other hand
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 : 8.0 7.30242825607 110% => OK
Relative clauses : 4.0 12.0772626932 33% => More relative clauses wanted.
Pronoun: 14.0 22.412803532 62% => OK
Preposition: 26.0 30.3222958057 86% => OK
Nominalization: 5.0 5.01324503311 100% => OK
Performance on vocabulary words:
No of characters: 1179.0 1373.03311258 86% => OK
No of words: 226.0 270.72406181 83% => More content wanted.
Chars per words: 5.21681415929 5.08290768461 103% => OK
Fourth root words length: 3.87727950738 4.04702891845 96% => OK
Word Length SD: 2.70932711977 2.5805825403 105% => OK
Unique words: 138.0 145.348785872 95% => More unique words wanted.
Unique words percentage: 0.610619469027 0.540411800872 113% => OK
syllable_count: 361.8 419.366225166 86% => 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
Article: 4.0 8.23620309051 49% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 10.0 13.0662251656 77% => 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: 22.0 21.2450331126 104% => OK
Sentence length SD: 44.0773184302 49.2860985944 89% => OK
Chars per sentence: 117.9 110.228320801 107% => OK
Words per sentence: 22.6 21.698381199 104% => OK
Discourse Markers: 8.5 7.06452816374 120% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 5.0 4.19205298013 119% => OK
Sentences with positive sentiment : 1.0 4.33554083885 23% => More positive sentences wanted.
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.287340219313 0.272083759551 106% => OK
Sentence topic coherence: 0.0972177853823 0.0996497079465 98% => OK
Sentence topic coherence SD: 0.0651494454938 0.0662205650399 98% => OK
Paragraph topic coherence: 0.16358936874 0.162205337803 101% => OK
Paragraph topic coherence SD: 0.0851783590791 0.0443174109184 192% => OK
Essay readability:
automated_readability_index: 14.5 13.3589403974 109% => OK
flesch_reading_ease: 49.15 53.8541721854 91% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.9 11.0289183223 108% => OK
coleman_liau_index: 13.29 12.2367328918 109% => OK
dale_chall_readability_score: 8.85 8.42419426049 105% => OK
difficult_words: 59.0 63.6247240618 93% => OK
linsear_write_formula: 11.5 10.7273730684 107% => OK
gunning_fog: 10.8 10.498013245 103% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
---------------------
Rates: 90.0 out of 100
Scores by essay e-grader: 27.0 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.