In recent years, wind energy as a source of renewable and clear energy has become increasingly popular. Unfortunately, wind energy has one significant environmental drawback: fast-moving turbine blades .pose serious threats to birds flying through wind farms. Various strategies are now being considered to make wind farm turbines safer for birds.
Radar
One method involves installing radar devices in wind turbines. The purpose of the radar devices is to scan the landscape and detect when groups of birds are approaching the wind farm. Once the devices identify the birds on the horizon, they capture images of the landscape and notify wind farm operators. After examining the radar images, the wind farm operators can temporarily shut down the wind turbines to allow the birds to fly safely through the wind farm.
Purple paint
Another option is to paint wind turbines purple. The conventional colors of wind turbines are white and gray. These colors are usually used so that the turbines blend into the background. However, these colors also attract insects. A high concentration of insects, in turn, draws in birds that prey on the insects. Scientists have recently reported that purple is the least attractive color for insects Therefore. if wind turbines are painted purple, they will attract fewer insects, and fewer birds will come close to the turbine blades
Sound alarm
A third way is concerned with using a sound alarm system to warn birds of wind turbines in front of them. While flying, most birds look to the side and down, as their eyes are located on the sides of their heads and their bodies are in a horizontal position. The sound projected by the wind farm would alert birds. and it is believed that it would make them look ahead and fly slower or stop flying completely. The sound alarm systems would likely save birds from the danger posed by wind turbines.
The passage discusses the popularity of turbines as a source of renewable source of energy but they pose a serious threat to birds, and then puts forward several solutions to address them. However, the speaker casts doubt on all of them by presenting some rational counterarguments.
First and foremost, The article asserts that putting in place some radars capable of detecting birds that turn off turbines will save birds. On the other hand, the professor pointed out that the process of turning off a turbine takes 45 minutes, thereafter birds will hit turbines before a complete shutdown. Moreover, these radars are not able to detect single birds at all. Therefore, radars are not reliable.
Secondly, The writer contends that scientists have proved the common color of turbines. gary and white, attract insects that catch the birds' attention so as to printing them in purple will be effective. The speaker, conversely, calls this into question. She states that both heat and ultraviolet are responsible for attracting insects. As a result, solely will changing the color not keep away birds.
Last but not least, The author claims that birds while flying look at their sides so if we produce sound to force them to look forward, they will change their direction to avoid hitting turbines. On the contrary, the lecture clears out that due to noises such as vihechles', a strong and unique voice is needed, and indeed it will disrupt the neighboring areas. As such, this solution is not practical.
Grammar and spelling errors:
Line 3, column 88, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Gary
...ve proved the common color of turbines. gary and white, attract insects that catch t...
^^^^
Line 3, column 135, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'birds'' or 'bird's'?
Suggestion: birds'; bird's
...d white, attract insects that catch the birds attention so as to printing them in pur...
^^^^^
Line 3, column 151, Rule ID: SO_AS_TO[1]
Message: Use simply 'to'
Suggestion: to
... insects that catch the birds attention so as to printing them in purple will be effecti...
^^^^^^^^
Line 3, column 361, Rule ID: DID_BASEFORM[1]
Message: The verb 'will' requires the base form of the verb: 'change'
Suggestion: change
...cting insects. As a result, solely will changing the color not keep away birds. Last bu...
^^^^^^^^
Transition Words or Phrases used:
but, conversely, first, however, if, look, moreover, second, secondly, so, then, therefore, while, as to, such as, as a result, on the contrary, 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: 6.0 5.04856512141 119% => OK
Conjunction : 8.0 7.30242825607 110% => OK
Relative clauses : 8.0 12.0772626932 66% => More relative clauses wanted.
Pronoun: 22.0 22.412803532 98% => OK
Preposition: 29.0 30.3222958057 96% => OK
Nominalization: 4.0 5.01324503311 80% => OK
Performance on vocabulary words:
No of characters: 1255.0 1373.03311258 91% => OK
No of words: 249.0 270.72406181 92% => More content wanted.
Chars per words: 5.04016064257 5.08290768461 99% => OK
Fourth root words length: 3.97237131171 4.04702891845 98% => OK
Word Length SD: 2.57258932502 2.5805825403 100% => OK
Unique words: 161.0 145.348785872 111% => OK
Unique words percentage: 0.646586345382 0.540411800872 120% => OK
syllable_count: 373.5 419.366225166 89% => 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: 9.0 8.23620309051 109% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 2.0 2.5761589404 78% => OK
Performance on sentences:
How many sentences: 14.0 13.0662251656 107% => OK
Sentence length: 17.0 21.2450331126 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 53.453584672 49.2860985944 108% => OK
Chars per sentence: 89.6428571429 110.228320801 81% => OK
Words per sentence: 17.7857142857 21.698381199 82% => OK
Discourse Markers: 11.5714285714 7.06452816374 164% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 4.0 4.19205298013 95% => OK
Sentences with positive sentiment : 6.0 4.33554083885 138% => OK
Sentences with negative sentiment : 3.0 4.45695364238 67% => OK
Sentences with neutral sentiment: 5.0 4.27373068433 117% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.111474565871 0.272083759551 41% => OK
Sentence topic coherence: 0.030283743638 0.0996497079465 30% => Sentence topic similarity is low.
Sentence topic coherence SD: 0.0590866767152 0.0662205650399 89% => OK
Paragraph topic coherence: 0.0700024064028 0.162205337803 43% => OK
Paragraph topic coherence SD: 0.0648020286562 0.0443174109184 146% => OK
Essay readability:
automated_readability_index: 11.2 13.3589403974 84% => Automated_readability_index is low.
flesch_reading_ease: 62.68 53.8541721854 116% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 8.7 11.0289183223 79% => OK
coleman_liau_index: 11.66 12.2367328918 95% => OK
dale_chall_readability_score: 8.98 8.42419426049 107% => OK
difficult_words: 71.0 63.6247240618 112% => OK
linsear_write_formula: 10.5 10.7273730684 98% => OK
gunning_fog: 8.8 10.498013245 84% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?
---------------------
Rates: 81.6666666667 out of 100
Scores by essay e-grader: 24.5 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.