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 and the lecture discuss the plan for building a community for life on the asteroids. The author is of the opinion that this is an advantageous plan for humankind and provides three reasons for support. On the other hand, the lecturer states that these reasons are unconvincing and the idea is unpractical by refuting each reason.
To begin with, the reading claims that the gravity in asteroids is weaker than earth and make carrying equipment and landing easier for spacecraft. However, the speaker says that this low gravity also presents certain health issues for people who travel to the asteroid. If the travelers exposed to this situation, they will lost their muscles and bones because of the low gravity effect and this cause serious disease for them. In some cases maybe they death.
Secondly, the author states that the small planets are enrich in precious metals such as gold so this plan is significantly beneficial. Conversely, the lecturer contends that availability of expensive metals is not the whole picture because this has an additional factor and it is cost of mining. The more mining cost, the less benefits of selling this metals. Moreover the price of metals in market is variable and they not rely able for considering this trade as a merit.
Eventually, the article mentions that the distance between asteroids and earth is short enough to convince human to colonize on them. On the contrary, the professor asserts that they may not be easy to back from this journey to the earth. Owing to the fact that their orbit path move and not constant. As a result their distance from earth is not stable and it possible that they go far away from earth and the distance increase as the passengers cannot back to the earth.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2020-01-16 | Kalima | 81 | view |
| 2019-12-29 | Bonjourkmm | 83 | view |
| 2019-12-27 | Amirreza97 | 3 | view |
| 2019-12-27 | Amirreza97 | 3 | view |
| 2019-12-17 | bishal sitaula | 66 | view |
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Grammar and spelling errors:
Line 3, column 326, Rule ID: DID_BASEFORM[1]
Message: The verb 'will' requires the base form of the verb: 'lose'
Suggestion: lose
...rs exposed to this situation, they will lost their muscles and bones because of the ...
^^^^
Line 4, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...them. In some cases maybe they death. Secondly, the author states that the sma...
^^^
Line 5, column 56, Rule ID: BEEN_PART_AGREEMENT[1]
Message: Consider using a past participle here: 'enriched'.
Suggestion: enriched
...uthor states that the small planets are enrich in precious metals such as gold so this...
^^^^^^
Line 5, column 324, Rule ID: FEWER_LESS[2]
Message: Did you mean 'fewer'? The noun benefits is countable.
Suggestion: fewer
...st of mining. The more mining cost, the less benefits of selling this metals. Moreov...
^^^^
Line 5, column 349, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
...ning cost, the less benefits of selling this metals. Moreover the price of metals in...
^^^^
Line 5, column 362, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: Moreover,
...e less benefits of selling this metals. Moreover the price of metals in market is variab...
^^^^^^^^
Transition Words or Phrases used:
also, conversely, however, if, may, moreover, second, secondly, so, such as, as a result, in some cases, on the contrary, to begin with, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 13.0 10.4613686534 124% => OK
Auxiliary verbs: 3.0 5.04856512141 59% => OK
Conjunction : 13.0 7.30242825607 178% => OK
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 32.0 22.412803532 143% => Less pronouns wanted
Preposition: 30.0 30.3222958057 99% => OK
Nominalization: 5.0 5.01324503311 100% => OK
Performance on vocabulary words:
No of characters: 1468.0 1373.03311258 107% => OK
No of words: 301.0 270.72406181 111% => OK
Chars per words: 4.87707641196 5.08290768461 96% => OK
Fourth root words length: 4.16525528304 4.04702891845 103% => OK
Word Length SD: 2.46460579826 2.5805825403 96% => OK
Unique words: 165.0 145.348785872 114% => OK
Unique words percentage: 0.548172757475 0.540411800872 101% => OK
syllable_count: 443.7 419.366225166 106% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 10.0 8.23620309051 121% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 5.0 2.5761589404 194% => OK
Performance on sentences:
How many sentences: 15.0 13.0662251656 115% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 37.9789415334 49.2860985944 77% => OK
Chars per sentence: 97.8666666667 110.228320801 89% => OK
Words per sentence: 20.0666666667 21.698381199 92% => OK
Discourse Markers: 10.2666666667 7.06452816374 145% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 6.0 4.19205298013 143% => OK
Sentences with positive sentiment : 7.0 4.33554083885 161% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => 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: 0.0407383264765 0.272083759551 15% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0159374162955 0.0996497079465 16% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0222797672022 0.0662205650399 34% => Sentences are similar to each other.
Paragraph topic coherence: 0.0234814202404 0.162205337803 14% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0149990054318 0.0443174109184 34% => 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: 11.6 13.3589403974 87% => Automated_readability_index is low.
flesch_reading_ease: 59.64 53.8541721854 111% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.9 11.0289183223 90% => OK
coleman_liau_index: 11.02 12.2367328918 90% => OK
dale_chall_readability_score: 8.67 8.42419426049 103% => OK
difficult_words: 77.0 63.6247240618 121% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
---------------------
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.