In the beginning:
"basically we have been doing nanotechnology for years upon years, so this isn't exactly the newest thing in the world."
Chemists have been working on making molecules for a long time and the evidence is everywhere around you.
Think about everything you have in your home. Imagine removing everything that you own that contains some form of plastic. That would be a lot of things you wouldn't be able to live without in your daily routines: wrappers, paints, nylon.
These products were developed recetly, your grandmother's never had these things in their houses, they used paper, cotton etc.
But in such a short time we have become completely dependent on these products.
These products were produced by deliberatly creating specific chemicals. But they were not just chemicals, they were actually molecules, and these molecules were tied together (polymerised) and have special properties that we desire.
For example we make plastic thin - not to take space and its easy to use, we make it water proof to seal in freshness. We make it see-through sometimes. And we make it tough and strong to hold our shopping in.
This all came about around the 1950's, certain chemists realized Organic molecules, especially those that come from Oil can be used to create these products, this was called synthetic chemistry, and a huge industry developed and the rest is history.
So, we have been able to make our own specific chemicals and molecules for years, whats so special about this new brand of chemical engineering: nanotechnology?
Lets takes a quick peek at the word nano for a moment, this is actaully an ancient Greek word for a dwarf.
But in scientific terms it has been taken to identify a scale, an order of magnitude, a measure.
If I said something was ten times bigger, that would be an order of magnitude larger.
If it was ten times smaller, it would be an order of magnitude smaller.
This is roughly speaking, so that you get an idea of scale, the scale of things to come.
Nano was used to identify an order of magnitude of 9. That is not nine times smaller.
But nine orders of magintude smaller.
We must identify "nano" with NINE orders of magnitude smaller. That is equal to 1 with nine zero's before it.
nano = 0.000 000 001
That's pretty small.
This is the size scale we are talking about:
Anywhere from 1 to 100 nm. (nano meters)
But.... chemists did make chemicals that we use everyday already, in sizes that are sometimes even smaller than nanotechnology, so why the big news about this 'new' "nanotechnology"???