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Nanotechnology
What is it?
A nanometer is a unit of measurement equal
to a billionth of a meter-about the size of six atoms of carbon.
It is very, very small. Nanotechnology is the study and manufacture
of tiny structures and devices, such as microswitches or micro-minirobots.
It is an exciting new field of study.
What is in store for the future?
Nanotechnology is attracting a lot of attention
because of its potential to solve big problems. Nanocomputers and
nanomachines would be smaller and faster than what we have today.
Nanorobots could clean up pollution, explore space, or diagnose
diseases inside our bodies. Nanomedicines could deliver specific
drugs to kill tumors or enter a cell's nucleus and repair genes.
Nanotechnology
Today
Today, people take antibiotic pills
to cure bacterial infections. Sometimes the pills work, but
sometimes the bacteria evolve and become resistant to the
antibiotics.
When? [changeable date from 2010 to 2100]
In the future we may fight infections
with nanomedicines. These tiny robots would seek out bacterial
diseases in our bodies, and if the bacteria had evolved, the
nanomedicines would change to fight the new bacterial strain.
Nanosphere
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Pros
& Cons
Better treatments for diseases are needed.
Most everyone would want a pill that cured a specific disease
without any side effects. However, how would you feel about
having a mini-machine inside you?
¨ Should we make tiny nanorobots to find diseases in our
bodies?
¨ Should nanorobots be able to change and reproduce in response
to changes in the environment?
¨ If you could take a nanorobot pill that would repair your
body as you aged and keep you young forever, would you?
Can you think of other issues? How do you think nanotechnology
will impact the future of human evolution? |
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