Hello Scibaby! Welcome to Wikipedia! Thank you for your contributions to this free encyclopedia. If you decide that you need help, check out Getting Help below, ask me on my talk page, or place {{helpme}} on your talk page and ask your question there. Please remember to sign your name on talk pages by clicking or using four tildes (~~~~); this will automatically produce your name and the date. Finally, please do your best to always fill in the edit summary field. Below are some useful links to facilitate your involvement. Happy editing! Runcorn19:56, 24 March 2007 (UTC)[reply]
This is what we call a "prima facie" definition. By definition, "nano" is equivalent to "on the order of 10^-9 meters." A committee can define it otherwise, but that does not make it so.
Definition of nanotechnology
I've noticed that you've changed the definition in the Nanotechnology article from 100 nm to 1um a number of times. I'm certain that the correct definition is 100nm as this is the size range given by the US National Nanotechnology Initiative [1], the UK Royal Society report on nanotechnology [2], and two of the three nanotechnology books on my bookshelf (Introduction to Nanotechnology by Poole and Owens, Societal Implications of Nanoscience and Nanotechnology ed. by Roco and Bainbridge). The EU Action Pan for Nanotechnolgy [3] and the third book (Introduction to Nanoscale Science and Technology ed. by Di Ventra, Evoy, and Heflin) simply mention nanometers without giving a range, and none of the sources I looked at specifically mentioned 1 micrometer. If you have any reliable source that does state that 1um is the upper limit for nanotechnology, we can make a note that there is disagreement about the definition in the article and list sources for both. Antony-2219:06, 28 March 2007 (UTC)[reply]
