DavidArmstrong488 wrote:However, what I don't know/haven't figured out is how a Logarithm came to be used. Why wouldn't just plotting the points on a timeline serve the purpose? What about the data suggested that a Logarithm would do the job, and how do Logarithms go about doing their job? This is the part I'm struggling to understand - when would you use a Logarithm and how do they work?
Pfhorrest wrote:You plot out your data points on a graph; a linear one to start with. You (or some software) look at how the data points are arranged and pick a curve which closely-enough approximates them without being ridiculously mathematically complex; try a linear curve first, then an exponential curve... hey look, an exponential curve fits pretty closely.
But, as you say, the y-value grows so fast that your graph needs to be ridiculously tall to convey any useful meaning to viewers. So you instead plot the logarithm of the y-values (and label the y-axis appropriately), and since logarithms invert exponentiation your curve displays as a nice straight line again.
Mighty Jalapeno wrote:As a designer and builder of 'sustainable housing', particularly straw-bale and heavy timberframe, I just hope this draws more people to my website.
ijuin wrote:Mighty Jalapeno wrote:As a designer and builder of 'sustainable housing', particularly straw-bale and heavy timberframe, I just hope this draws more people to my website.
So, houses of straw and houses of sticks. Better hope no Big Bad Wolf comes around, or you might wish you used bricks instead.
perakojot wrote:also, i think it peaked in 2005..
collegestudent22 wrote:And why aren't bricks sustainable, anyway? Aren't they just hardened mud and wet clay? I can hardly think that the world will run out of CLAY soon.
DoMakeSayThink wrote:collegestudent22 wrote:And why aren't bricks sustainable, anyway? Aren't they just hardened mud and wet clay? I can hardly think that the world will run out of CLAY soon.
It's not so much the physical components of the brick, but rather the large amount of energy used in firing them. The firing process can also be responsible for the release of some unpleasant gases in to the atmosphere (chlorides, fluorides).
I don't know about comfort, but there seems to have been an interesting blip in the use of the word 'internet' centred around the year 1900...
cemper93 wrote:By the way, actually searching Google Books for books from ages long gone that include these words leads to some interesting finds, including:
The story of Captain Internet (1806)
Codrington then engaged the Spanish Admiral Gravina's flagship, the three-decked Principe de Asturias, and endured a savage cannonade before encountering his major challenge, the French Intrépide, into which he poured massive, accurate and sustained fire as Nelson's life ebbed away on the Victory. By five o'clock only the foremast of the French ship was still standing, the wheel and tiller had been smashed and over half of Captain Infernet's crew had been killed or wounded when he struck his colours to Orion. Codrington took on board the French Captain and his eleven-year old son, put a boarding crew on the Intrépide and began to take off the most severely wounded for attention on his own ship.
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