Asteroids are large space objects made of rock and ice. There are hundreds of thousands of asteroids in our solar system. Though we often hear ideas about establishing colonies of humans to live and work on our Moon or our neighboring planet, Mars, some think that sending people to an asteroid would actually be the best colonization option for a number of reasons.
Low Gravity To begin with, asteroids are often much smaller than planets, so they have lower gravity. When landing a spaceship, the craft would not be pulled as strongly or as forcefully toward the asteroid's surface, making the landing safer than landing on the Moon or Mars; it would also allow a spacecraft to carry much more equipment needed to set up the colony. It would also be easier for the spacecraft to take off again, so the spaceship would need to carry considerably less fuel for the trip back to Earth.
Mining Valuable Metals Next some asteroids are rich in valuable elements and precious metals that are relatively rare on Earth, such as gold and platinum. An asteroid colony would be extremely profitable and a good source of these raw materials. The colonists or businesses sponsoring them could more than pay for the cost of their support by mining minerals and sending them back to Earth.
Easy to Reach Finally, asteroids are a good option for colonization because some of them would be very easy to reach. There are a number of asteroids that periodically come within or near Earth's orbit Some of them actually get closer to Earth than our Moon. So these asteroids would be much easier and more affordable to get to and get back from than a planet like Mars, which would require a two-year trip in each direction.
The reading and lecture are both about the possibility of colonization of asteroids as the large space objects. The author of the reading passage states due to low gravity in asteroids, mining valuable metals, and some conveniences to reach to the asteroids, colonization can be applied effectively; however, the lecturer repudiates the idea. The lecturer casts doubts on the three main points of the reading by providing three indefeasible reasons.
To begin with, even though the author mentions that asteroids’ low gravity is advantageous because of a safe landing, carrying more equipment, and easier taking off, the lecture rejects the opinion. He discusses that low gravity causes several severe problems for astronauts. For example, long-winded time can reduce not only bones and muscles density but also their masses. Thus, the reading’s idea is problematic.
Secondly, the author claims that asteroids can be implied as a valuable resource for metals, especially precious and rare ones. On the other hand, the lecturer says that expenditures of supporting and returning spaceships are enormous. As well as, this process will result in disturbing the market prices. Indeed, it will be perpetuated to a state in which many metals prices take a nosedive. Furthermore, there is a weak possibility that asteroids have the rare, priceless metals. Therefore, it seems that this idea is not feasible.
Last but not least, the reading passage shows that asteroids are an appropriate option for colonization because some of them have a predictable and periodically orbiting period. Hence, these asteroids would be much convenient and more affordable to send and return spaceships. However, the lecturer illustrates that this opinion is not feasible because some asteroids are coming near the earth and come back to the vast space. In fact, they go beyond some planets such as Mars, so there is not any guarantee to return.
In conclusion, the reading and the lecture are both about scrutinizing the possibility of colonization in asteroids. Whereas the author buttresses his/her position, the three main points of reading are challenged by the lecturer effectively.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2019-02-11 | coredroid0401@gmail.com | 68 | view |
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Grammar and spelling errors:
Line 1, column 344, 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.
...ever, the lecturer repudiates the idea. The lecturer casts doubts on the three main...
^^^
Line 3, column 382, Rule ID: A_INFINITVE[1]
Message: Probably a wrong construction: a/the + infinitive
... state in which many metals prices take a nosedive. Furthermore, there is a weak possibili...
^^^^^^^^^^
Transition Words or Phrases used:
also, but, furthermore, hence, however, second, secondly, so, therefore, thus, well, whereas, for example, in conclusion, in fact, such as, as well as, to begin with, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 16.0 10.4613686534 153% => OK
Auxiliary verbs: 6.0 5.04856512141 119% => OK
Conjunction : 13.0 7.30242825607 178% => OK
Relative clauses : 9.0 12.0772626932 75% => More relative clauses wanted.
Pronoun: 20.0 22.412803532 89% => OK
Preposition: 33.0 30.3222958057 109% => OK
Nominalization: 6.0 5.01324503311 120% => OK
Performance on vocabulary words:
No of characters: 1841.0 1373.03311258 134% => OK
No of words: 340.0 270.72406181 126% => OK
Chars per words: 5.41470588235 5.08290768461 107% => OK
Fourth root words length: 4.29407602571 4.04702891845 106% => OK
Word Length SD: 2.97762561872 2.5805825403 115% => OK
Unique words: 189.0 145.348785872 130% => OK
Unique words percentage: 0.555882352941 0.540411800872 103% => OK
syllable_count: 577.8 419.366225166 138% => OK
avg_syllables_per_word: 1.7 1.55342163355 109% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 3.25607064018 184% => OK
Article: 12.0 8.23620309051 146% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 19.0 13.0662251656 145% => OK
Sentence length: 17.0 21.2450331126 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 46.8231185648 49.2860985944 95% => OK
Chars per sentence: 96.8947368421 110.228320801 88% => OK
Words per sentence: 17.8947368421 21.698381199 82% => OK
Discourse Markers: 9.68421052632 7.06452816374 137% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 6.0 4.45695364238 135% => OK
Sentences with neutral sentiment: 8.0 4.27373068433 187% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.114101229647 0.272083759551 42% => OK
Sentence topic coherence: 0.0373785494798 0.0996497079465 38% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0380377652424 0.0662205650399 57% => OK
Paragraph topic coherence: 0.0625040719632 0.162205337803 39% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0364365824367 0.0443174109184 82% => OK
Essay readability:
automated_readability_index: 13.0 13.3589403974 97% => OK
flesch_reading_ease: 45.76 53.8541721854 85% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.1 11.0289183223 101% => OK
coleman_liau_index: 13.8 12.2367328918 113% => OK
dale_chall_readability_score: 8.85 8.42419426049 105% => OK
difficult_words: 94.0 63.6247240618 148% => OK
linsear_write_formula: 15.0 10.7273730684 140% => OK
gunning_fog: 8.8 10.498013245 84% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?
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Write the essay in 20 minutes.
Rates: 85.0 out of 100
Scores by essay e-grader: 25.5 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.