tailieunhanh - The Way To Geometry, by Peter Ramus

Chemical substances are often called 'pure' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose). However, simple or seemingly pure substances found in nature can in fact be mixtures of chemical substances. For example, tap water may contain small amounts of dissolved sodium chloride and compounds containing iron,. | The Project Gutenberg EBook of The Way To Geometry by Peter Ramus This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at Title The Way To Geometry Author Peter Ramus Translator William Bedwell Release Date October 2 2008 EBook 26752 Language English START OF THIS PROJECT GUTENBERG EBOOK THE WAY TO GEOMETRY Produced by Jonathan Ingram Keith Edkins and the Online Distributed Proofreading Team at http Transcriber s note. Several few typographical errors have been corrected. They appear in the text like this and the explanation will appear when the .