پاورپوینت آماده; What is nanotechnology

مطالب اسلایدهای ابتدایی این پاورپوینت به شرح زیر است   تعداد اسلاید : 29 اسلاید What is nanotechnology? A Nanometer There are 1 billion (1,000,000,000) nanometers in 1 meterThere are 1 million (1,000,000) micrometers (or microns) in 1 meterA line of ten hydrogen atoms lined up side by side is 1 nanometer longYour finger nail grows 1 nanometer in 1 secondThe diameter of your hair is approximately 50,000 nanometersThe abbreviation for nanometer is “nm” Nanostructures/Nanomaterials Nanostructures are materials that, in at least one dimension, measure approximately 1 – 100 nmNanostructures or nanomaterials exhibit properties different from their macroscale counterparts (their “big brothers”) such as:Mechanical strength (how hard they are to break)Electrical conductivity (how fast electrons flow through them)Thermal conductivity (how fast heat flows through them)Chemical reactivity (how well/fast they react with other chemicals)Transparency (how well you …