The decision regarding investment in unmanned space flight must be properly reviewed prior to acceptance. As it is mentioned in the letter to the editor, manned space flight is costly and dangerous. Adding to it, recent success of unmanned space flight is given as an example. But these arguments are not properly evidenced. To consider certain skeptical things regarding the statements in the letter, certain issues needs to be addressed.
Firstly, it is mentioned that the manned space flight is costly and dangerous. Nevertheless, there is no proper reasoning about why is the flight dangerous. Any instances, about certain dangerous accidents that have occurred where not elicited. The flight is said to be costly, but the reasons for the higher costs was not discussed. Any additional security measures taken, may be a reason for the increase in the costs. Without addressing these reasons, considering the higher costs as a reason to reject manned space fight may not be an wise decision.
Secondly, success of series of unmanned space probes and satellites was addressed. The success of the series can be because of various factors like the design of the system, the conditions under which it was launched. Creating a similar environment even to unmanned space flights may not be always possible. The re-creation of its entire system similar to that of unmanned space probes and satellites is involved with copious costs.
Thirdly, excluding man and purely relying on machinery to gather useful information as in unmanned space flight may not be an applaud-able decision. After all, man has created all this machinery, he can more wisely use his intellect in collecting the information. In fact man has more solid reason of why he is collecting all this data, he can therefore judge within himself regarding what data to collect and what information is actually useful to himself.
Collecting all the pieces together, investment of resources is a very costly decision. It needs utmost solicitude. Without considering each issue carefully one can not directly take a decision. All the arguments mentioned above must be properly addressed and bolstered with proper evidence only then the editor can decide on this issue of investment and decide wisely.
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Essay evaluation report
Attribute Value Ideal
Final score: 3.0 out of 6
Category: Satisfactory Excellent
No. of Grammatical Errors: 0 2
No. of Spelling Errors: 0 2
No. of Sentences: 22 15
No. of Words: 364 350
No. of Characters: 1852 1500
No. of Different Words: 170 200
Fourth Root of Number of Words: 4.368 4.7
Average Word Length: 5.088 4.6
Word Length SD: 2.673 2.4
No. of Words greater than 5 chars: 157 100
No. of Words greater than 6 chars: 107 80
No. of Words greater than 7 chars: 82 40
No. of Words greater than 8 chars: 52 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 16.545 21.0
Sentence Length SD: 6.59 7.5
Use of Discourse Markers (%): 0.636 0.12
Sentence-Text Coherence: 0.295 0.35
Sentence-Para Coherence: 0.53 0.50
Sentence-Sentence Coherence: 0.105 0.07
Number of Paragraphs: 5 5
Grammar and spelling errors:
Line 3, column 537, Rule ID: EN_A_VS_AN
Message: Use 'a' instead of 'an' if the following word doesn't start with a vowel sound, e.g. 'a sentence', 'a university'
Suggestion: a
...to reject manned space fight may not be an wise decision. Secondly, success of ...
^^
Transition Words or Phrases used:
actually, but, first, firstly, may, nevertheless, regarding, second, secondly, so, then, therefore, third, thirdly, after all, in fact
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 25.0 19.6327345309 127% => OK
Auxiliary verbs: 11.0 12.9520958084 85% => OK
Conjunction : 10.0 11.1786427146 89% => OK
Relative clauses : 5.0 13.6137724551 37% => More relative clauses wanted.
Pronoun: 20.0 28.8173652695 69% => OK
Preposition: 49.0 55.5748502994 88% => OK
Nominalization: 10.0 16.3942115768 61% => OK
Performance on vocabulary words:
No of characters: 1906.0 2260.96107784 84% => OK
No of words: 364.0 441.139720559 83% => More content wanted.
Chars per words: 5.23626373626 5.12650576532 102% => OK
Fourth root words length: 4.36792674256 4.56307096286 96% => OK
Word Length SD: 2.78266734119 2.78398813304 100% => OK
Unique words: 178.0 204.123752495 87% => More unique words wanted.
Unique words percentage: 0.489010989011 0.468620217663 104% => OK
syllable_count: 602.1 705.55239521 85% => OK
avg_syllables_per_word: 1.7 1.59920159681 106% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 4.96107784431 81% => OK
Article: 5.0 8.76447105788 57% => OK
Subordination: 2.0 2.70958083832 74% => OK
Conjunction: 2.0 1.67365269461 119% => OK
Preposition: 7.0 4.22255489022 166% => OK
Performance on sentences:
How many sentences: 22.0 19.7664670659 111% => OK
Sentence length: 16.0 22.8473053892 70% => The Avg. Sentence Length is relatively short.
Sentence length SD: 37.4975481292 57.8364921388 65% => OK
Chars per sentence: 86.6363636364 119.503703932 72% => OK
Words per sentence: 16.5454545455 23.324526521 71% => OK
Discourse Markers: 6.09090909091 5.70786347227 107% => OK
Paragraphs: 5.0 5.15768463074 97% => OK
Language errors: 1.0 5.25449101796 19% => OK
Sentences with positive sentiment : 12.0 8.20758483034 146% => 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: 0.382624791135 0.218282227539 175% => OK
Sentence topic coherence: 0.11853585418 0.0743258471296 159% => OK
Sentence topic coherence SD: 0.0948033452446 0.0701772020484 135% => OK
Paragraph topic coherence: 0.203363357303 0.128457276422 158% => OK
Paragraph topic coherence SD: 0.0699859814312 0.0628817314937 111% => OK
Essay readability:
automated_readability_index: 11.5 14.3799401198 80% => Automated_readability_index is low.
flesch_reading_ease: 46.78 48.3550499002 97% => OK
smog_index: 3.1 7.1628742515 43% => Smog_index is low.
flesch_kincaid_grade: 10.7 12.197005988 88% => OK
coleman_liau_index: 12.82 12.5979740519 102% => OK
dale_chall_readability_score: 8.77 8.32208582834 105% => OK
difficult_words: 100.0 98.500998004 102% => OK
linsear_write_formula: 5.5 12.3882235529 44% => Linsear_write_formula is low.
gunning_fog: 8.4 11.1389221557 75% => OK
text_standard: 11.0 11.9071856287 92% => OK
What are above readability scores?
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Rates: 58.33 out of 100
Scores by essay e-grader: 3.5 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.