Are we alone Setting some limits to our uniqueness
Elasticity of demand would provide a glimpse into how sensitive demand is relative to changes in price, and given than Apple has an almost cult-like following for the products it releases, so I was curious to explore the dynamics of its products, specifically the iPhone. Collect sales data Source: Statista I scoured the web to find historical sales per quarter for each model, but the best I could find was aggregate sales for each quarter. That being said, a major assumption in this exploration is that the majority of sales for each quarter reflect the sales of the latest iPhone in that time period. Given the rapid evolution of technology and consumer preferences, this assumption makes sense in a real world application. Once I collected sales data, I sought complete the other half of the equation by gathering pricing data by model. Asymco After all the relevant data was sourced, I pooled it together on Excel and calculated the elasticity for each model. Graphing our results and fitting the data to a linear regression model yielded the following: Based on this, we are able to infer that as more and more models were released, the elasticity began to decrease.
Math Goes Pop!
I was have a fascinating conversation with a friend in L. For those that don’t know, the Drake Equation is a tentative formula that takes a guess at the number of intelligent life forms in the Milky Way based on probabilities of phenomena that spawn life in lieu of any actual evidence. It’s far from perfect and while outcomes can vary radically, the underlying logic makes sense. If you have x number of stars, x of them will be the right type of stars for life, and of that x of them will have planets in the habitable zone, of those, x of those planets will have conditions right for life, and so on where “x” starts at an astronomical number but keeps getting exponentially smaller.
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The Drake Equation of Love. The Drake Equation is a research tool designed to make educated guesses for one of science’s most elusive questions: Is there intelligent life on other worlds?
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Talk:Fermi paradox/Archive 7
Astronomy Some of the most spectacular advances in modern astronomy have come from research on the large-scale structure and development of the universe. In Vesto Slipher began at the Lowell Observatory in Arizona an extensive program to measure the velocities of nebulas, using the Doppler shift of their spectral lines. Doppler shift is the observed change in wavelength of the radiation from a source that results from the relative motion of the latter along the line of sight.
By he had studied about 40 nebulas, most of which were found to be moving away from Earth according to the redshift displacement toward longer wavelengths of their spectra. Although the nebulas were apparently so far away that their distances could not be measured directly by the stellar parallax method, an indirect approach was developed on the basis of a discovery made in by Henrietta Swan Leavitt at the Harvard College Observatory.
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Add to Wishlist Install In this app you will use the Drake Equation by selecting and changing the values of the different factors. You will be encouraged to ponder the possibility of intelligent communicating life elsewhere in the Milky Way and the rest of the universe. The Drake Equation also will inspire you to think about astronomy, astrophysics, biology, philosophy, psychology and more. Astronomers are hot on the trail of rocky exoplanets about the size of Earth, planets with enough gravity to hold an atmosphere, and orbiting their stars in the so-called habitable zone, at distances where temperatures will permit liquid surface water.
We know that there are hundreds of billions of stars and very likely planets in our galaxy, and there are as many galaxies in the observable universe. There is at least a chance that we are not alone. What might it mean for humans to one day learn about intelligent extraterrestrials? Over half a century ago, astronomer Frank Drake used a radio telescope to listen for intelligent signals from other star systems. He also formulated an equation proven to be quite useful when hypothesizing about the number of extraterrestrial civilizations in our galaxy, and about how many of them are transmitting radio signals which we can potentially receive and decode?
N, the number of civilizations in the Milky Way galaxy which broadcast detectable signals, is a multiple of seven factors, each of which limit the resulting value, each of which must be carefully examined in order to arrive at an estimate. Discuss it with your friends and family.
Dating Open Thread: What’s Your Best Dating Advice for Career
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Mar 14, · I could go into the math of it all, but someone else already has, using the Drake Equation (an equation to estimate the probability of finding alien civilizations based on a number of factors representing known statistical quantities).
Age and the Standard Creepiness Rule The graph isn’t exactly going to win artistic awards The Standard Creepiness Rule states that if we define an individual’s age as x, said individual should not date anyone under: However does not take into account either the population of each age bracket something which would require individual research , nor the percentage of those who are single in each age bracket.
It has been suggested however that graphing these equations will help boost your self-esteem, and generally give you something nice to put on your wall. The Drake Equation A commonly noted problem however is that environmental factors often decrease the ability of individuals to find someone with mutual interest; so that despite the fact that the estimated dating pool only increases with age, the experienced dating pool seems to be much smaller.
As such there are a variety of new variables to factor into any attempt at predictive equations, and thus we require a more detailed equation to handle this. The closest simile that currently exists is the Drake Equation. The comparison between the Drake Equation’s method for assessing intelligent life in space and the likelihood of finding a girlfriend was first made in in Germany , although was expanded on more recently in the UK.
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Most Exoplanets Are Probably Not Habitable
Pilot Sightings There have been over 3, documented sightings of Unidentified Aerial Phenomena by military, civilian and commercial airline pilots. These observations span the entire history of powered flight. Many of these cases come from declassified US government reports and investigations, international reports from official sources and the direct testimony of military and commercial pilots, air traffic controllers, and radar operators.
Share this article Share The final question requires you to add the cowboy boot and the horse and multiply by the horseshoe to come up with the corresponding numerical value. Guesses as to the solution of the question varied wildly – with answers ranging from 12 to 48 But, despite initial appearances, the true answer is The first question, involving three horses adding up to 30, tells us that the value of a horse is The second equation, featuring two horseshoes and a horse, allows us to deduce the value of the horseshoe is 4.
The third equation tells us that the value of a cowboy boot is 2. Some maths-savvy people were able to figure out the solution to the puzzle right away This has understandably led many people to guess the answer as However, due to the BODMAS rule – which dictates the order of operations in working out maths solutions — you should actually be multiplying the horse by the horseshoe first, then adding the cowboy boot next.
Despite this, many people with opposing views are adamant they have solved the puzzle – while others continue to insist it can ‘never’ be solved. One commenter was still confused after the answer was explained to him Alex was adamant that the correct solution ‘doesn’t exist’.
Just Explain It: Finding The Probability Of Love
I am willing to act as a mediator if that is acceptable to involved parties. If there is no objection, I will close the case after another 24 hours. I have undone a revert of my additional sentences to this recently added topic because the argument presented is at a level of simplicity that it, in my opinion, can be accepted on its face without need for sources and without it being considered WP: My grounds for this are the basic assumption that, since Guth’s relevant remark was virtually an aside to the central part of the work, if it should be considered for a section of the article at all then independent critique that helps to clarify the aside’s merit without drawing on sources should be acceptable on the grounds that published critique is unlikely to exist and the critique is extraordinarily simple.
The expectation of a probability of the reciprocal of an enormous number is “prima facie” a statistically significant coincidence.
Sep 27, · In this app you will use the Drake Equation by selecting and changing the values of the different factors. You will be encouraged to ponder the possibility of intelligent communicating life elsewhere in the Milky Way and the rest of the universe.5/5(3).
History of Technology Heroes and Villains – A little light reading Here you will find a brief history of technology. Initially inspired by the development of batteries, it covers technology in general and includes some interesting little known, or long forgotten, facts as well as a few myths about the development of technology, the science behind it, the context in which it occurred and the deeds of the many personalities, eccentrics and charlatans involved.
You may find the Search Engine , the Technology Timeline or the Hall of Fame quicker if you are looking for something or somebody in particular. Scroll down and see what treasures you can discover. Background We think of a battery today as a source of portable power, but it is no exaggeration to say that the battery is one of the most important inventions in the history of mankind.
Volta’s pile was at first a technical curiosity but this new electrochemical phenomenon very quickly opened the door to new branches of both physics and chemistry and a myriad of discoveries, inventions and applications. The electronics, computers and communications industries, power engineering and much of the chemical industry of today were founded on discoveries made possible by the battery. Pioneers It is often overlooked that throughout the nineteenth century, most of the electrical experimenters, inventors and engineers who made these advances possible had to make their own batteries before they could start their investigations.
They did not have the benefit of cheap, off the shelf, mass produced batteries. For many years the telegraph, and later the telephone, industries were the only consumers of batteries in modest volumes and it wasn’t until the twentieth century that new applications created the demand that made the battery a commodity item. In recent years batteries have changed out of all recognition.
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You can either use the search box or the drop down menu. Speaking of quantity, it is also among the largest. Full members allow users access to all the films and special performances.
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Cosmic evolution is the continuous process that has led to the appearance of galaxies, stars, planets, and life on Earth. Living organisms may be characterized by their ability to react to their environment, to grow by taking in nutrition from their surroundings, and to reproduce, passing along some of their own characteristics to their offspring. Powered by natural energy sources, reactions between simple molecules in the oceans of the primitive Earth are believed to have led to the formation of amino acids and nucleotide bases , the basic molecules of life.
Alternatively, some complex molecules may have been formed in interstellar space and then delivered to Earth by meteors or comets. Organisms that can best take advantage of their new surroundings succeed at the expense of those organisms that cannot make the necessary adjustments. Intelligence is strongly favored by natural selection.
The best hope for life beyond Earth in the solar system is the planet Mars, although no evidence for living organisms has been found. Saturn’s Titan may also be a possibility, but conditions there are harsh by terrestrial standards. The Drake equation provides a means of estimating the probability of intelligent life in the Galaxy. The astronomical terms in the equation are the Galactic star-formation rate, the likelihood of planets, and the number of habitable planets.
Chemical and biological terms are the probability that life appears and the probability that it subsequently develops intelligence. Cultural and political terms are the probability that intelligence leads to technology, and the lifetime of a civilization in the technological state.