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 text and the lecture are about asteroids and the possibility of human colonization on them. The author gives three reasons in support of it. While, the lecturer disputes each and every point and finds flaws in the writer’s claim.
First and foremost, the reading text states that asteroids are large objects made of rocks and ice, and have smaller gravity. Consequently, it is helpful as it makes landing easy as well as consume less fuel and may carry more euipments. However, the professor points out that it is not practical because it comes with certain health problems like losing muscle mass, decrease bone density. Hence, to him it is not a good idea.
Secondly, the writer says that they also will be a nice metal mining site. Asteroids are rich in gold and platinum and hence, give business to target markets. On the other hand, the speaker notes that althogh asteroids are rich in valuable metals, the cost of taking these to and from the asteroids is way too costly. Which in turn, decreases the profit and also when supply increases, it may decrease the demand.
To wrap things up, the final point to mention is that they are near to earth so easy to reach. Nevertheless, the lecturer believes that they have some unusual orbital pattern and sometimes may go far away from the planet reuklting in a challenge to reach there.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2023-09-09 | xujia | 75 | view |
| 2023-07-18 | YasamanEsml | 32 | view |
| 2023-07-18 | YasamanEsml | 3 | view |
| 2023-07-18 | YasamanEsml | 3 | view |
| 2023-07-18 | YasamanEsml | 3 | view |
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Transition Words or Phrases used:
also, consequently, first, hence, however, may, nevertheless, second, secondly, so, well, while, as well as, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 11.0 10.4613686534 105% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 13.0 7.30242825607 178% => OK
Relative clauses : 8.0 12.0772626932 66% => More relative clauses wanted.
Pronoun: 19.0 22.412803532 85% => OK
Preposition: 27.0 30.3222958057 89% => OK
Nominalization: 2.0 5.01324503311 40% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1133.0 1373.03311258 83% => OK
No of words: 236.0 270.72406181 87% => More content wanted.
Chars per words: 4.80084745763 5.08290768461 94% => OK
Fourth root words length: 3.91947592106 4.04702891845 97% => OK
Word Length SD: 2.37053076674 2.5805825403 92% => OK
Unique words: 149.0 145.348785872 103% => OK
Unique words percentage: 0.631355932203 0.540411800872 117% => OK
syllable_count: 344.7 419.366225166 82% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 9.0 8.23620309051 109% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 3.0 2.5761589404 116% => OK
Performance on sentences:
How many sentences: 13.0 13.0662251656 99% => OK
Sentence length: 18.0 21.2450331126 85% => The Avg. Sentence Length is relatively short.
Sentence length SD: 38.2672013378 49.2860985944 78% => OK
Chars per sentence: 87.1538461538 110.228320801 79% => OK
Words per sentence: 18.1538461538 21.698381199 84% => OK
Discourse Markers: 9.69230769231 7.06452816374 137% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 0.0 4.19205298013 0% => OK
Sentences with positive sentiment : 8.0 4.33554083885 185% => OK
Sentences with negative sentiment : 3.0 4.45695364238 67% => OK
Sentences with neutral sentiment: 2.0 4.27373068433 47% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.121545818943 0.272083759551 45% => OK
Sentence topic coherence: 0.0391505895529 0.0996497079465 39% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0539264191575 0.0662205650399 81% => OK
Paragraph topic coherence: 0.0648606932242 0.162205337803 40% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0261559254121 0.0443174109184 59% => OK
Essay readability:
automated_readability_index: 10.3 13.3589403974 77% => Automated_readability_index is low.
flesch_reading_ease: 61.67 53.8541721854 115% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.1 11.0289183223 83% => OK
coleman_liau_index: 10.26 12.2367328918 84% => OK
dale_chall_readability_score: 8.41 8.42419426049 100% => OK
difficult_words: 58.0 63.6247240618 91% => OK
linsear_write_formula: 8.0 10.7273730684 75% => OK
gunning_fog: 9.2 10.498013245 88% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
---------------------
Rates: 83.3333333333 out of 100
Scores by essay e-grader: 25.0 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.