Today I read more about roughness and started a LaTeX document with my re-derivation of Hamaker’s constant. I also got a nice paper discussing theoretical models of adhesion using different roughness models.

I am still working on the complete derivation and once I am finished, I will post it in my notebook.


I spoke with Oli today about some high speed imaging techniques and experiments to do. I am engineering a chamber for the inhalers now.

Sputter coater

I still have not gotten the sputter coater working. I am going to try vacuum greasing the chamber a lot and see if that does anything.


I was able to contact an engineer at nanoTherics today. Hopefully we can figure out what is wrong with our device. So far, my interactions with them indicate that they are an awesome company and anyone reading this should buy stuff from them.

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