posted on Feb, 24 2013 @ 03:03 AM
Makes you wonder why gold is so coveted,
show how that magnified
sunlight by fresnel lens can boil water in a test tube with nano particles. Even if it is embedded in ice water! This is amazing, could you imagine
the uses? Water purification, etc and it beats solar cells! I'm trying to figure out how they synthesized the nano particles. Here is the
from ACS Publications. I've also read
that colloidal gold nano particles are the best at
this light to heat thing.
might help in figuring out the colloidal gold,
notice the picture where it is near black because it is subject to salt.
The surface plasmon resonance can be tuned by varying the size or shape of the nanoparticles, leading to particles with tailored optical properties
for different applications. Figure 1. Colors of various sized monodispersed gold nanoparticles This phenomenon is also seen when excess salt is added
to the gold solution. The surface charge of the gold nanoparticle becomes neutral, causing nanoparticles to aggregate. As a result, the solution color
changes from red to blue.
Add a Tesla steam turbine and you got yourself a nice DIY electricity generator! Discuss if you please!
edit on 24-2-2013 by Emeraldous
because: (no reason given)