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Saturday, February 9, 2013
Monday, August 13, 2012
Do graphs have to start from zero origin? NO, read why.
Dear children of God,
Finally, I found the graph I was referring to in class. The graph above was made by a scientist from NASA for the purpose of illustrating the amount of carbon dioxide over passing of time until today. As you can see it does not start from zero either along x or y axis. If one has to stick to mathematical rule of starting from zero when making graphs then can you just imagine how much space would be wasted and how small the lines would be? That is simply for the y-axis. If the value of x-axis in years should start from zero then we cannot make an interpretation on how carbon dioxide increases or decreases over time. Note that the rightmost end of the x-axis (lower right corner) ends with zero.
Graphing is a math skill yet Math has its way of doing things contrary to science. In science, we have to find meaning on what we do. We cannot just blindly follow the rules and end up with a nonsense graph. That is why there is so much more to the number and we have to assign meaning to it. I have nothing against Math but the discipline ends with a number. Science strives to continue from the calculation of the number by attaching meaning to it.
siraris
Why one should use a primary article and how to acquire primary article from a secondary/tertiary source?
Dear children of God,
Whenever you are asked to submit a report or assignment you would always check for Google for the answer. However Google would usually provide Wikipedia as the first entry of the result. You know that Wikipedia is an online encyclopedia and it is under the tertiary source of information. However, at the end of Wikipedia article, you will find the list of references and it is there where you can check the primary sources of information to write the article.
But how important is the use of primary article in writing? For the past few days, we were confronted with hearsay on the status of August 20 if it will be a holiday or not. Some would claim it is a holiday while others would say that it is not. When the news (click here) came out in Yahoo news that there will be no class on August 20 some might take it as true. Most of us would just embrace that the information is true because of the reputation of the company which delivered the news. But I would like to warn you to be critical. You need to read article completely and check for yourself the basis from which the claim of a holiday was made. Since only a proclamation from president can make it official then you can verify it at Philippines Official Gazette for you to ascertain the veracity of the news (click here).
If I were to post only the news article then my colleagues would question if indeed there was proclamation made by the president. Rather than waste time posting the news article one can simply post the proclamation directly from the source. If we simply read critically tertiary articles are our window to how and where to get primary articles.
siraris
Whenever you are asked to submit a report or assignment you would always check for Google for the answer. However Google would usually provide Wikipedia as the first entry of the result. You know that Wikipedia is an online encyclopedia and it is under the tertiary source of information. However, at the end of Wikipedia article, you will find the list of references and it is there where you can check the primary sources of information to write the article.
But how important is the use of primary article in writing? For the past few days, we were confronted with hearsay on the status of August 20 if it will be a holiday or not. Some would claim it is a holiday while others would say that it is not. When the news (click here) came out in Yahoo news that there will be no class on August 20 some might take it as true. Most of us would just embrace that the information is true because of the reputation of the company which delivered the news. But I would like to warn you to be critical. You need to read article completely and check for yourself the basis from which the claim of a holiday was made. Since only a proclamation from president can make it official then you can verify it at Philippines Official Gazette for you to ascertain the veracity of the news (click here).
If I were to post only the news article then my colleagues would question if indeed there was proclamation made by the president. Rather than waste time posting the news article one can simply post the proclamation directly from the source. If we simply read critically tertiary articles are our window to how and where to get primary articles.
siraris
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