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.
Both the reading passage and the lecturer discuss the posibility of astroids colonization. While the reading passage brings three reasons make astroids livable, the lecturer finds these reasons impractical and brigs some evidence to refute them.
First, the writer asserts that the low gravity of astroids makes situation proper for landing and taking off the spacecraft. On the other hand, the professor says that the low gravity has some harmful effect. For example, the astroments who live in the low gravity on the oribts surround the Earth, suffer from bone density. So the low gravity can threat health of the human.
Second, the author believes that valuable metals which exist in astroids can bring enourmos profits that can support journy's costs. In contrast, the professor says that its not the whole advanture. When the suppliment of the valuable metals increase, then the market price of them will decreas. Beside, there is no gaurantee in finding metals, and it would be risky.
Finally, the reading declares that reaching to astoids is even easier than reach to some orbits surrounded Earth. Still, the lecturer states that while reaching to astroid is straightforward but returning to Earth would be complicated; Because astroids move and getting away from Earth after a while.
Transition Words or Phrases used:
but, finally, first, second, so, still, then, while, for example, in contrast, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 5.0 10.4613686534 48% => More to be verbs wanted.
Auxiliary verbs: 6.0 5.04856512141 119% => OK
Conjunction : 6.0 7.30242825607 82% => OK
Relative clauses : 10.0 12.0772626932 83% => OK
Pronoun: 12.0 22.412803532 54% => OK
Preposition: 20.0 30.3222958057 66% => OK
Nominalization: 4.0 5.01324503311 80% => OK
Performance on vocabulary words:
No of characters: 1094.0 1373.03311258 80% => OK
No of words: 208.0 270.72406181 77% => More content wanted.
Chars per words: 5.25961538462 5.08290768461 103% => OK
Fourth root words length: 3.79765784423 4.04702891845 94% => OK
Word Length SD: 2.48216642229 2.5805825403 96% => OK
Unique words: 129.0 145.348785872 89% => More unique words wanted.
Unique words percentage: 0.620192307692 0.540411800872 115% => OK
syllable_count: 319.5 419.366225166 76% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 3.25607064018 0% => OK
Article: 8.0 8.23620309051 97% => OK
Subordination: 3.0 1.25165562914 240% => Less adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 17.0 21.2450331126 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 37.3128664136 49.2860985944 76% => OK
Chars per sentence: 91.1666666667 110.228320801 83% => OK
Words per sentence: 17.3333333333 21.698381199 80% => OK
Discourse Markers: 8.0 7.06452816374 113% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.0247033526813 0.272083759551 9% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0100034464428 0.0996497079465 10% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0122567218192 0.0662205650399 19% => Sentences are similar to each other.
Paragraph topic coherence: 0.0135850001435 0.162205337803 8% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0105411870105 0.0443174109184 24% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.
Essay readability:
automated_readability_index: 12.0 13.3589403974 90% => Automated_readability_index is low.
flesch_reading_ease: 62.68 53.8541721854 116% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.7 11.0289183223 79% => OK
coleman_liau_index: 12.93 12.2367328918 106% => OK
dale_chall_readability_score: 9.03 8.42419426049 107% => OK
difficult_words: 60.0 63.6247240618 94% => OK
linsear_write_formula: 8.0 10.7273730684 75% => 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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It is not exactly right on the topic in the view of e-grader. Maybe there is a wrong essay topic.
Rates: 3.33333333333 out of 100
Scores by essay e-grader: 1.0 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.