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Acknowledgements
We are grateful to the Tri Alpha Energy shareholders for their support and the entire Tri Alpha Energy team for their hard work in building and operating the C-2U device. We would also like to acknowledge Ross Koningstein from Google and David Ewing from Tri Alpha Energy who provided the program management for this project.
Author Contributions
E.A.B., J.C.P., and P.F.R. developed the optometrist algorithm reported in this work. E.T. and H.G. oversaw the experiments run on the C-2U device. M.D. and R.M. developed the data management systems required to interface between Google and Tri Alpha Energy. M.B. wrote a large portion of this manuscript.
Additional Information
Supplementary information accompanies this paper at doi:10.1038/s41598-017-06645-7 Competing Interests: e authors declare that they have no competing interests.
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