What is a Nanometer Science of Technology 2011
- Slides: 17
What is a Nanometer? Science of Technology © 2011 Project Lead The Way, Inc.
Nanotechnology deals with materials and machines on an incredibly tiny scale, less than one billionth of a meter. How Nanotechnology Works When Things Get Small What’s Nano
Nanotechnology How big is a nanometer? A nanometer is 10 -9 (a billionth) of a meter. The prefix nano is Greek for dwarf. Diameter of human hair Red blood cells 100μm 1 cm 1 mm BIG μm = micrometer or micron Bacterium 1μm DNA helix 100 nm nm = nanometer 10 nm 1 nm Ǻ = Angstrom . 1Ǻ SMALL
Nanoscale Examples All dimensions are approximate. http: //www. nano. gov/html/res/200711 Nanotechnology. Big. Thingsfroma. Tiny. World. html
How Big Is a Billion? 1, 000, 000 or 109 How many grains of salt are in a salt shaker? How tall would a stack of 1 billion pieces of paper be? How long would it take you to count to 1 billion?
How Big Is a Billion? How many grains of salt are in: 1 pinch ~1, 000 grains 1 cup ~1, 000 grains 1 gallon (16 cups in a gallon) ~16, 000 grains How many cups of salt are needed for 1 billion grains? ~100 cups
How Big Is a Billion? How big is the container that holds 100 cups or 1 billion grains of salt? The size of your bathtub!
How Big Is a Billion? How tall is 1 billion sheets of paper? Measure the height of 25 sheets of paper to the nearest mm. Therefore, the height of 100 sheets of paper is? So, the height of 1, 000, 000 sheets of paper is?
How Big Is a Billion? One story of a building is approximately 3 m high. How many stories would a billion sheets of paper be?
How Big Is a Billion? How long would it take you to count to 1 billion? Have someone time you while you count from 1 -10 at a normal speaking rate. How many seconds would it take you to count from 1 -100? How many seconds would it take you to count from 1 -1, 000?
How Big Is a Billion? How many seconds would it take you to count from 1 -1, 000, 000? How many minutes would it take you to count from 1 -1, 000, 000? How many years would it take you to count from 11, 000, 000?
How Small Is a Billionth? Which number is larger, 1 billion or 1 million? Which quantity is bigger, one part per million or one part per billion? Would you prefer to have a concentration of toxic substance in your drinking water at one part per billion or one part per million?
How Small Is a Billionth? What does it mean when you say that you have one in ten chances of winning a game?
How Small Is a Billionth? This is a 10% solution of water and food coloring. How was it made?
How Small Is a Billionth? What is a nanometer? Molecular Gears Molecular Propeller
Nanometer • A unit of measure • One billionth of a meter, 10 -9 • So small that you need a scanning probe microscope or an atomic force microscope to see an object this size
Image Resources Microsoft, Inc. (2009). Clip Art. Retrieved January 30, 2009, from http: //office. microsoft. com/en-us/clipart/default. aspx National Nanotechnology Initiative (NNI). (n. d. ). Big things from a tiny world. Retrieved February 3, 2009, from http: //www. nano. gov/