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 passage and the lecture are both about Astroid colonization, based on which people can stablish some colony on near astriods. While the author of reading believes that is would be very profitable to colonize on an astroid, the lecturer casts doubt on the statements made by the author. He is of the opinion that astroid colonization is not practical.
Firstly, the author suggests that because of the low gravity on astroid it is more easy for spaceships to land in the astroid or take off from it. the passage also clarifies that by this, spaceship can bring more equipments needed. Conversly, the lecturer challenges this argument by saying that low gravity also bring a lot of risks and health problem, namely musle mass lost and bone density lost. Moreover, he points out that because of this leath problems the mans on the international space station can not stay there more than a certain time and this would be worsen for long term in a astroid colonization.
Secondly, the reading specifies that it can be profitable by mining some valuable metals which is plentiful in the astroids and send it back to the eath. The lecturer, on the other hand, rejects this idea by describing that you must consider some other factors such as cost. the cost of transporting the materials to the earth woud decrease the profit of mining. Besides, he mentions that if we bring huge amout of this metals to the earth it will lose its value and the price will not remain the same.
Thirdly, it is stated in the article that some astroids can easily reached due to the low distance to the earth. The professor, however, argues that the way that astroids rounds in the space will make is some times near to the earth and then it will go far from the earth. He explains that although we can easily come to the astroid, it does not stay at the same point and it will be very hard to come back from it.
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| 2020-01-16 | Kalima | 81 | view |
| 2019-12-29 | Bonjourkmm | 83 | view |
| 2019-12-27 | Amirreza97 | 3 | view |
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| 2019-12-17 | bishal sitaula | 66 | view |
- TPO 52 3
- Which of the following do you think contribute most to an enjoyable vacation 1 good food 2 good location 3 good friends to travel with Select one and give your reasons 73
- 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 t 3
Grammar and spelling errors:
Line 3, column 591, Rule ID: EN_A_VS_AN
Message: Use 'an' instead of 'a' if the following word starts with a vowel sound, e.g. 'an article', 'an hour'
Suggestion: an
...d this would be worsen for long term in a astroid colonization. Secondly, the ...
^
Line 5, column 276, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: The
...nsider some other factors such as cost. the cost of transporting the materials to t...
^^^
Line 5, column 416, Rule ID: THIS_NNS[1]
Message: Did you mean 'these'?
Suggestion: these
...mentions that if we bring huge amout of this metals to the earth it will lose its va...
^^^^
Line 7, column 15, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...l not remain the same. Thirdly, it is stated in the article that some astroids...
^^
Transition Words or Phrases used:
also, besides, first, firstly, however, if, moreover, second, secondly, so, then, third, thirdly, while, such as, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 12.0 10.4613686534 115% => OK
Auxiliary verbs: 14.0 5.04856512141 277% => Less auxiliary verb wanted.
Conjunction : 9.0 7.30242825607 123% => OK
Relative clauses : 15.0 12.0772626932 124% => OK
Pronoun: 37.0 22.412803532 165% => Less pronouns wanted
Preposition: 43.0 30.3222958057 142% => OK
Nominalization: 6.0 5.01324503311 120% => OK
Performance on vocabulary words:
No of characters: 1567.0 1373.03311258 114% => OK
No of words: 341.0 270.72406181 126% => OK
Chars per words: 4.59530791789 5.08290768461 90% => OK
Fourth root words length: 4.29722995808 4.04702891845 106% => OK
Word Length SD: 2.39869074461 2.5805825403 93% => OK
Unique words: 175.0 145.348785872 120% => OK
Unique words percentage: 0.513196480938 0.540411800872 95% => More unique words wanted or less content wanted.
syllable_count: 476.1 419.366225166 114% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 3.25607064018 184% => OK
Article: 9.0 8.23620309051 109% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 24.0 21.2450331126 113% => OK
Sentence length SD: 37.2496404585 49.2860985944 76% => OK
Chars per sentence: 111.928571429 110.228320801 102% => OK
Words per sentence: 24.3571428571 21.698381199 112% => OK
Discourse Markers: 9.35714285714 7.06452816374 132% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 4.0 4.19205298013 95% => 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: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.047340167779 0.272083759551 17% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0182709805346 0.0996497079465 18% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0183376681034 0.0662205650399 28% => Sentences are similar to each other.
Paragraph topic coherence: 0.0329287273367 0.162205337803 20% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.015100048067 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: 12.4 13.3589403974 93% => Automated_readability_index is low.
flesch_reading_ease: 64.04 53.8541721854 119% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 10.3 11.0289183223 93% => OK
coleman_liau_index: 9.7 12.2367328918 79% => OK
dale_chall_readability_score: 8.11 8.42419426049 96% => OK
difficult_words: 71.0 63.6247240618 112% => OK
linsear_write_formula: 10.5 10.7273730684 98% => OK
gunning_fog: 11.6 10.498013245 110% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
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Write the essay in 20 minutes.
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.