Drake equation hw | Geography homework help

Use the Drake equation to calculate the potential for intelligent life within our Galaxy. Your teacher may assign different numbers to use than the suggested ones in bold, or different groups may work independently with their own assumptions.

N = R* • fp • ne • fl • fi • fc • L

  • N = The number of civilizations in the Milky Waygalaxy whose electromagnetic emissions are detectable.
  • R* =The rate of formation of stars suitable for the development of intelligent (Say…0.05, 5%)
  • fp= The fraction of those stars with planetary systems.  (50%, or 0.50)
  • ne= The number of planets, per solar system, with an environment suitable for life.  (Difficult to say; maybe 1 as in our case)
  • fl= The fraction of suitable planets on which life actually appears.  (This is hard to assign a number; see below##)
  • fi= The fraction of life bearing planets on which intelligent life emerges. (1.0, 100%, why not, eh?)
  • fc= The fraction of civilizations that develop a technology that releases detectable signs of their existence into space. (Again, see ##Special Considerations below)
  • L = The length of time such civilizations release detectable signals into space. (We have for 100 years or out Earth’s 4.6 billion)

## Special Considerations:

  • The universe is over 13.7 billion years old.
  • Our (relatively young) solar system is less than half that age at about 4.6 billion years.
  • Our planet has fossils of very simple life for 3.5 billion years.
  • The MWG is some 13.2 billion years old—enough to have had 2.8 solar system cycles like ours.
  • Our solar system will exist for another 5 billion years before the Sun becomes a red giant.
  • It takes 100,000 years for radio waves to travel across the galaxy.
  • Intelligent life with technological advances to comprehend and communicate outside our solar system has existed for about a hundred years. 

In other words, during the life of the galaxy thus far, humans have had the ability to communicate outside our solar system for 100 years / 13.2 x 109, or,  .  Even if another civilization were contemporaneous with ours, they would have to be within 100 ly to have received our first radio waves by now. If they were 2,000 ly away, they would not receive our radio waves until the year 2300.  Another consideration: without the ability to travel at or faster than light speed, the time involved would be many generations in human life spans. (Of course, perhaps these intelligent beings have already discovered how to use wormholes and portals to appear at our doorstep, for good, or, as Steven Hawking thinks, for bad!)

Calculate your OWN number for the Drake equation, using and justifying values that you deem appropriate.  Then, discuss the chances that another species would have coincided with our current time line; include in the discussion the possibility that an extraterrestrial life form would be want to make contact with humans, and what that contact may look like.  You may submit your answer as a file attachment or a text entry.

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more