The argument is about a letter provided to the editor of a national aeronautics’ magazine regarding the advantages of unmanned space probes and satellites that are considered to be cheaper and harmless to lives of space explorers. The author also mentions about the great deal of information gathered by the satellite with automation. Though the insights about unmanned space probes seems to be reliable, the author failed to substantiate his data with reasonable evidence.
The author failed to investigate about the weakness in signal and communication barrier when the satellite is unmanned. There are high chances for attenuation in frequency and hence gathering the required data can be inconsistent. The claim about the great deal of data gathered seems to be undermined when there is a risk for breaching the privacy policies of other countries. Sometimes, it can lead to a space war between countries. Since it is unmanned, the author should have mentioned about the reliability of the machine. There are chances for the satellite to be trajected in a wrong direction and with just automated instructions, it is practically impossible for the space shuttle to change directions.
Furthermore, to add, the author must have given a guarantee about the space traffic automations. There is no accurate information about the space traffic being controlled automatically from ground stations. If that is not so, then it is possible for a big catastrophe in space between the satellites. Since there are no scope for astronauts to explore the space in an unmanned machine, scope for the field of space and science may decrease in the forthcoming years. Unmanned space drones are theoretical in approach rather than pragmatic and hence people are likely to develop aversion towards the subject.
To recapitulate, if the author had given plausible explanation for the mentioned facts, it would have ameliorated his statements regarding the unmanned missions for future.
e-rater score report
Attribute Value Ideal
Final score: 3.5 out of 6
Category: Satisfactory Excellent
No. of Grammatical Errors: 2 2
No. of Spelling Errors: 2 2
No. of Sentences: 15 15
No. of Words: 312 350
No. of Characters: 1628 1500
No. of Different Words: 156 200
Fourth Root of Number of Words: 4.203 4.7
Average Word Length: 5.218 4.6
Word Length SD: 2.914 2.4
No. of Words greater than 5 chars: 119 100
No. of Words greater than 6 chars: 97 80
No. of Words greater than 7 chars: 80 40
No. of Words greater than 8 chars: 52 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 20.8 21.0
Sentence Length SD: 6.892 7.5
Use of Discourse Markers (%): 0.533 0.12
Sentence-Text Coherence: 0.371 0.35
Sentence-Para Coherence: 0.371 0.50
Sentence-Sentence Coherence: 0.081 0.07
Number of Paragraphs: 1 5
Transition Words or Phrases used:
also, furthermore, hence, if, may, regarding, so, then
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 20.0 19.6327345309 102% => OK
Auxiliary verbs: 6.0 12.9520958084 46% => OK
Conjunction : 7.0 11.1786427146 63% => OK
Relative clauses : 4.0 13.6137724551 29% => More relative clauses wanted.
Pronoun: 9.0 28.8173652695 31% => OK
Preposition: 48.0 55.5748502994 86% => OK
Nominalization: 10.0 16.3942115768 61% => OK
Performance on vocabulary words:
No of characters: 1662.0 2260.96107784 74% => OK
No of words: 312.0 441.139720559 71% => More content wanted.
Chars per words: 5.32692307692 5.12650576532 104% => OK
Fourth root words length: 4.20279927342 4.56307096286 92% => OK
Word Length SD: 3.03106857821 2.78398813304 109% => OK
Unique words: 155.0 204.123752495 76% => More unique words wanted.
Unique words percentage: 0.496794871795 0.468620217663 106% => OK
syllable_count: 535.5 705.55239521 76% => OK
avg_syllables_per_word: 1.7 1.59920159681 106% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 4.96107784431 60% => OK
Article: 7.0 8.76447105788 80% => OK
Subordination: 5.0 2.70958083832 185% => OK
Conjunction: 0.0 1.67365269461 0% => OK
Preposition: 4.0 4.22255489022 95% => OK
Performance on sentences:
How many sentences: 15.0 19.7664670659 76% => 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: 20.0 22.8473053892 88% => OK
Sentence length SD: 42.9638607824 57.8364921388 74% => OK
Chars per sentence: 110.8 119.503703932 93% => OK
Words per sentence: 20.8 23.324526521 89% => OK
Discourse Markers: 3.6 5.70786347227 63% => OK
Paragraphs: 4.0 5.15768463074 78% => More paragraphs wanted.
Language errors: 0.0 5.25449101796 0% => OK
Sentences with positive sentiment : 5.0 8.20758483034 61% => OK
Sentences with negative sentiment : 8.0 6.88822355289 116% => OK
Sentences with neutral sentiment: 2.0 4.67664670659 43% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.250431845251 0.218282227539 115% => OK
Sentence topic coherence: 0.0941109651704 0.0743258471296 127% => OK
Sentence topic coherence SD: 0.0537428837615 0.0701772020484 77% => OK
Paragraph topic coherence: 0.152606900046 0.128457276422 119% => OK
Paragraph topic coherence SD: 0.086187601409 0.0628817314937 137% => OK
Essay readability:
automated_readability_index: 14.1 14.3799401198 98% => OK
flesch_reading_ease: 42.72 48.3550499002 88% => OK
smog_index: 8.8 7.1628742515 123% => OK
flesch_kincaid_grade: 12.3 12.197005988 101% => OK
coleman_liau_index: 13.63 12.5979740519 108% => OK
dale_chall_readability_score: 8.83 8.32208582834 106% => OK
difficult_words: 83.0 98.500998004 84% => More difficult words wanted.
linsear_write_formula: 12.0 12.3882235529 97% => OK
gunning_fog: 10.0 11.1389221557 90% => OK
text_standard: 9.0 11.9071856287 76% => OK
What are above readability scores?
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Rates: 50.0 out of 100
Scores by essay e-grader: 3.0 Out of 6
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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.