Summarize the points made in the lecture, being sure to explain how they respond to the specific points made in the reading passage.
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 lecture challenges the specific arguments presented in the reading passage basically by these three following points.
To work against the first argument that the low gravity asteroids maintains are often beneficial, the professor suggested that low gravity presents risks sometimes for causing people losing muscle weight and bones density. Especially in the case of long-term staying.
And second, to disapprove the thought that profitable mining businesses, the whole picture should be considered as the cost of establishing a mining industry and setting up the transport are extremely high so that can come over than the profits this will make. On the other hand, if there is some other valuable metal resource found in Earth, the supplies increase, the price reduces.
At last, for the argument that those asteroids are easy to reach. It is true in a way, but it also can be much harder to come back somehow. Those asteroids comes close to the Earth, and at some points, they move far away, even further than the distance of Mars. Thus, our people may reach easily but take a huge mount of efforts to come back home.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2022-08-26 | Liting Mai | 75 | view |
| 2022-01-19 | hellozxc | 71 | view |
| 2020-08-12 | YIngxin Zhang | 80 | view |
| 2020-03-13 | Harperchan1997 | 3 | view |
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- Summarize the points made in the lecture being sure to explain how they respond to the specific concerns presented in the reading passage Scientists are considering the possibility of sending humans to Mars in the coming decades Although there have been s 3
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Grammar and spelling errors:
Line 4, column 146, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'asteroids'' or 'asteroid's'?
Suggestion: asteroids'; asteroid's
...much harder to come back somehow. Those asteroids comes close to the Earth, and at some p...
^^^^^^^^^
Line 4, column 156, Rule ID: AGREEMENT_SENT_START[1]
Message: You should probably use 'come'.
Suggestion: come
...r to come back somehow. Those asteroids comes close to the Earth, and at some points,...
^^^^^
Transition Words or Phrases used:
also, but, first, if, may, second, so, thus, it is true, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 7.0 10.4613686534 67% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 6.0 7.30242825607 82% => OK
Relative clauses : 5.0 12.0772626932 41% => More relative clauses wanted.
Pronoun: 13.0 22.412803532 58% => OK
Preposition: 21.0 30.3222958057 69% => OK
Nominalization: 3.0 5.01324503311 60% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 942.0 1373.03311258 69% => OK
No of words: 189.0 270.72406181 70% => More content wanted.
Chars per words: 4.98412698413 5.08290768461 98% => OK
Fourth root words length: 3.70779275107 4.04702891845 92% => OK
Word Length SD: 2.47138093946 2.5805825403 96% => OK
Unique words: 128.0 145.348785872 88% => More unique words wanted.
Unique words percentage: 0.677248677249 0.540411800872 125% => OK
syllable_count: 290.7 419.366225166 69% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 5.0 8.23620309051 61% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 3.0 1.51434878587 198% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 9.0 13.0662251656 69% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 21.0 21.2450331126 99% => OK
Sentence length SD: 68.4117887466 49.2860985944 139% => OK
Chars per sentence: 104.666666667 110.228320801 95% => OK
Words per sentence: 21.0 21.698381199 97% => OK
Discourse Markers: 8.22222222222 7.06452816374 116% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 2.0 4.45695364238 45% => More negative sentences wanted.
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: 0.0905207610372 0.272083759551 33% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0359598273602 0.0996497079465 36% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0324028809987 0.0662205650399 49% => Sentences are similar to each other.
Paragraph topic coherence: 0.0555200727957 0.162205337803 34% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0371468223407 0.0443174109184 84% => OK
Essay readability:
automated_readability_index: 12.5 13.3589403974 94% => Automated_readability_index is low.
flesch_reading_ease: 58.62 53.8541721854 109% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 10.3 11.0289183223 93% => OK
coleman_liau_index: 11.6 12.2367328918 95% => OK
dale_chall_readability_score: 8.35 8.42419426049 99% => OK
difficult_words: 44.0 63.6247240618 69% => More difficult words wanted.
linsear_write_formula: 15.0 10.7273730684 140% => OK
gunning_fog: 10.4 10.498013245 99% => 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.