Scientists are considering the possibility of sending humans to Mars in the coming decades. Although there have been successful manned missions to the Moon in the 1960s and 1970s, Mars is 150 times further away from Earth than the Moon is. Thus the project of sending humans to Mars would require solving an array of problems the Moon missions did not have to face.
One problem is that a round-trip to Marsand back is likely to take at least two years. The trip to the Moon lasted only a few days, and it was easy to bring enough supplies of food, water, and oxygen; but the cargo capacity of space vehicles is too limited to put on board the food, water, and oxygen required by a crew for a period of two years. Without those essentials, though, a Mars mission is impossible.
A second problem is that astronauts on the Mars mission would be in the zero-gravity environment of space for many months at a time. Spending a long time in the zero-gravity environment has negative effects on the human body, such as decreased muscle mass and lower bone density. Over the course of a two-year mission, the effects would be so severe, they would make it impossible for humans to make the trip without experiencing grave medical problems
Finally, astronauts on a mission to Mars would be exposed to dangerous levels of space radiation, much of which comes in the form of charged particles emitted by the Sun. Earth's magnetic field, which normally protects us from dangerous solar radiation, would not be able to protect a spaceship traveling in interplanetary space. Constructing a shield that would protect the whole spaceship from space radiation is at present impossible because if would add too much weight to the ship.
In this set of materials, the reading and the lecture both discuss the possibility of successful trip to Mars. While the reading states that in comparison with trip to moon, the mission to Mars will facing many problems. However, the lecture refutes this, saying that although these problems are challenging but the scientists could solve these problems and it opposes each and every reasons stated by the writer.
First and foremost, the lecture claims that while the trip to moon takes few days, the same trip to Mars will take many years. Indeed, this trip will need myriad of equipment, foods, and water. Space ship could not carry all these equipment because of its occupancy is tenuous. However, the lecture argues that the new technology of hydroponic plants address this issue. According to the professor, the hydroponic can grow the plant's roots in the water and provide food. Besides, recycling the waste water to drinking water and use the carbon dioxide by the plants to produce oxygen and fresh air, all these are benefits of the hydroponic which could be use instead of carrying foods and water.
Secondly, the reading makes the argument that in such a long trip and zero gravity will cause many medical problems like loss bone density and muscle mass. The lecture, on the other hand, counters this point by stating that several trips are orbiting earth with zero gravity and they overcome these problems by produce many techniques. furthermore, the professor adds that techniques like excercise and taking vitamins and minerals help to prevent these medical problems .
Lastly, the reading asserts that radiation from sun cause a harmful effects. Since the earth magnetic's field protect the human from these harmful radiation, the long space trip could not be safe from it. Nevertheless, the lecture refutes this claim, by pointing out that solar radiation not always danger but only in certain occasion. Moreover, the professor adds that equipment could monitor it and could use shelter for protection.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2020-01-20 | f.jafary66@gmail.com | 80 | view |
| 2020-01-18 | naziii | 3 | view |
| 2020-01-07 | 3dra | 3 | view |
| 2019-12-27 | Amirreza97 | 3 | view |
| 2019-12-16 | jeffhjz | 3 | view |
- scientific researches should be reveal or not. did you agree or disagree? 70
- o you agree or disagree with the following statement? It is more important for governments to spend money to improve Internet access than to improve public transportation. Use specific reasons and examples to support your answer. 80
- Scientists are considering the possibility of sending humans to Mars in the coming decades. Although there have been successful manned missions to the Moon in the 1960s and 1970s, Mars is 150 times further away from Earth than the Moon is. Thus the projec 3
- agree or disagreethe successful people need to take risk rather than do what they use to do 70
- Do you agree or disagree with the following statement? Governments should spend more money in support of the arts than in support of athletics such as state-sponsored Olympic teams. Use specific reasons and examples to support your answer. 76
Grammar and spelling errors:
Line 1, column 200, Rule ID: DID_BASEFORM[1]
Message: The verb 'will' requires the base form of the verb: 'face'
Suggestion: face
... trip to moon, the mission to Mars will facing many problems. However, the lecture ref...
^^^^^^
Line 3, column 155, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... many years. Indeed, this trip will need myriad of equipment, foods, and water. S...
^^
Line 3, column 227, Rule ID: THIS_NNS[2]
Message: Did you mean 'this equipment' or 'these equipments'?
Suggestion: this equipment; these equipments
...d water. Space ship could not carry all these equipment because of its occupancy is tenuous. Ho...
^^^^^^^^^^^^^^^
Line 3, column 345, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...es that the new technology of hydroponic plants address this issue. According to ...
^^
Line 5, column 337, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Furthermore
...se problems by produce many techniques. furthermore, the professor adds that techniques lik...
^^^^^^^^^^^
Line 5, column 471, Rule ID: COMMA_PARENTHESIS_WHITESPACE
Message: Don't put a space before the full stop
Suggestion: .
...s help to prevent these medical problems . Lastly, the reading asserts that rad...
^^
Line 7, column 69, Rule ID: A_PLURAL[2]
Message: Don't use indefinite articles with plural words. Did you mean 'effect'?
Suggestion: effect
...that radiation from sun cause a harmful effects. Since the earth magnetics field protec...
^^^^^^^
Transition Words or Phrases used:
besides, but, first, furthermore, however, lastly, moreover, nevertheless, second, secondly, so, while, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 6.0 10.4613686534 57% => More to be verbs wanted.
Auxiliary verbs: 12.0 5.04856512141 238% => Less auxiliary verb wanted.
Conjunction : 17.0 7.30242825607 233% => Less conjunction wanted
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 28.0 22.412803532 125% => Less pronouns wanted
Preposition: 36.0 30.3222958057 119% => OK
Nominalization: 8.0 5.01324503311 160% => OK
Performance on vocabulary words:
No of characters: 1696.0 1373.03311258 124% => OK
No of words: 331.0 270.72406181 122% => OK
Chars per words: 5.12386706949 5.08290768461 101% => OK
Fourth root words length: 4.26537283232 4.04702891845 105% => OK
Word Length SD: 2.36965318254 2.5805825403 92% => OK
Unique words: 179.0 145.348785872 123% => OK
Unique words percentage: 0.540785498489 0.540411800872 100% => OK
syllable_count: 505.8 419.366225166 121% => 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: 14.0 8.23620309051 170% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 5.0 2.5761589404 194% => OK
Performance on sentences:
How many sentences: 16.0 13.0662251656 122% => OK
Sentence length: 20.0 21.2450331126 94% => OK
Sentence length SD: 42.2017105696 49.2860985944 86% => OK
Chars per sentence: 106.0 110.228320801 96% => OK
Words per sentence: 20.6875 21.698381199 95% => OK
Discourse Markers: 7.5625 7.06452816374 107% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 7.0 4.19205298013 167% => OK
Sentences with positive sentiment : 6.0 4.33554083885 138% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 6.0 4.27373068433 140% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.0805096277825 0.272083759551 30% => The similarity between the topic and the content is low.
Sentence topic coherence: 0.0284276726664 0.0996497079465 29% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0411846690063 0.0662205650399 62% => OK
Paragraph topic coherence: 0.0546738928148 0.162205337803 34% => Maybe some paragraphs are off the topic.
Paragraph topic coherence SD: 0.0410001122326 0.0443174109184 93% => OK
Essay readability:
automated_readability_index: 13.0 13.3589403974 97% => OK
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: 12.42 12.2367328918 101% => OK
dale_chall_readability_score: 8.49 8.42419426049 101% => OK
difficult_words: 81.0 63.6247240618 127% => OK
linsear_write_formula: 10.5 10.7273730684 98% => OK
gunning_fog: 10.0 10.498013245 95% => OK
text_standard: 10.0 11.2008830022 89% => 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.