User talk:Olympia1099

Hello, I'm Materialscientist. I noticed that you made a change to an article, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. Materialscientist (talk) 12:41, 18 August 2015 (UTC)

Olympia1099, you are invited to the Teahouse!
Please do not add or change content without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. Materialscientist (talk) 22:05, 18 August 2015 (UTC)

Average height around the World
I deleted your descriptions about world's average height because of the following three reasons.


 * there was no reference on your edit so I couldn't confirm the data.
 * The estimated average height looks obviously not correct. 60% of the world population are composed by Asian. even if all of the rest are as tall as US adults (which is not), the average would be 170 or lower because the two of the most populated Asian countries' average height are 167.4 and 164.7 (Therefore 166 x 0.6(Asia) + 176 x 0.4(the rest) = 170).
 * The conversion of height between cm and inches was not accurate. (5'8 and half is not 173cm)

However, if you have a strong supporting evidence to deny the arguments above, please post your opinion here, then we can discuss this issue. I may misunderstand your point. Many thanks JordanZaxxon (talk) 06:54, 20 August 2015 (UTC)

This is my supporting evidence http://www.averageheight.co/average-male-height Here is the site where I saw that


 * * you did NOT refer this page on your initial edit. because we are not psychics, you must have referred this page when you made the change on Human height. (otherwise how can we know where your data come from?)
 * * The page you showed cannot be your supporting evidence in any case, because (1) this page doesn't satisfy the Wikipedia's definition of reliable sources (I think you had better read the pages above mentioned by Materialscientist (talk) at first) (2) the page you showed doesn't explain where and how the data were taken and calculated, meaning no difference from making up any random number as the world's average height (3) the data obviously looks inaccurate as I explained above (the 2nd reason), If you doubt about it, then please calculate by yourself with these data and these data (4) as I explained above (the 3rd reason), the conversion between cm and inches is wrong (5) the page doesn't contain female height, where does 160cm come from?.
 * * please do NOT post your comment on my userpage. userpage is not for commenting. use talk page instead. (I deleted your post.)
 * * I recommend you to use WP:SIG when you comment on any talk page. because you can confuse other people without it.
 * I hope my explanations are clear enough. Many thanks JordanZaxxon (talk) 05:01, 1 September 2015 (UTC)