wsilvestre.com is a personal website created to share with students, colleagues, and physics educators around the world a collection of carefully developed solutions to selected physics and mathematics problems. ​The solutions presented here are intentionally highly detailed and often go beyond what is typically found in standard textbooks or taught through traditional (and often time-limited) classroom lectures. The goal is not only to arrive at final results, but to make the ideas behind each step as clear as possible from a mathematical and/or physical point of view. ​In addition to written problem solutions, this site features short physics demonstrations in the form of YouTube Shorts, as well as links to interactive GeoGebra activities designed to help visualize and explore concepts that students often find challenging.

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Acknowledgments:

Special thanks to Sarah Silvestre, Omar Pérez Veloz, José Ramón Álvarez, Melvin Arias, and to Jottin M. Leonel Collado for their past and/or future comments and corrections regarding the content of this website.

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A little bit about me:

Name: Whasington Silvestre

Place of birth: Dominican Republic

Email: wsilvestre@gmail.com

YouTube channels:

• DrSilvestre (English version)

• DrSilvestre En Español (Spanish version)

Degrees:

• Bachelor’s in Physics (Autonomous University of Santo Domingo)

• Master’s in Physics (University of Puerto Rico)

• PhD in Physical Chemistry (University of Puerto Rico)

Interests:

• Electric double layer phenomenon

• Monte Carlo simulation of charged fluids

• Statistical Mechanics

• Electromagnetism

• Applications of integral and differential calculus

Publications:

Silvestre-Alcantara W, Bhuiyan LB, Henderson D. Local semiempirical formulas for the contact values of the singlet distribution functions of a double layer. J Chem Eng Data. 2010;55(5):1837-1841. doi:10.1021/je9008377.

 

Silvestre-Alcantara W, Bhuiyan LB, Outhwaite CW, Henderson D. A MODIFIED POISSON–BOLTZMANN STUDY OF THE SINGLET ION DISTRIBUTION AT CONTACT WITH THE ELECTRODE FOR A PLANAR ELECTRIC DOUBLE LAYER. Collect Czechoslov Chem Commun. 2010;75(4):425-446. doi:10.1135/cccc2009098.

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Silvestre-Alcantara W, Bhuiyan LB, Jiang J, Wu J, Henderson D. Contact value relations and density functional theory for the electrical double layer. Mol Phys. 2014;(January):1-8. doi:10.1080/00268976.2014.932924.

 

Kaja M, Silvestre-Alcantara W, Lamperski S, Henderson D, Bhuiyan L. B. Monte Carlo investigation of structure of an electric double layer formed by a valency asymmetric mixture of charged dimers and charged hard spheres. Mol Phys. 2014;(October):1-10. doi:10.1080/00268976.2014.968651.

 

Silvestre-Alcantara W, Henderson D, Wu J, Kaja M, Lamperski S, Bhuiyan LB. Structure of an electric double layer containing a 2:2 valency dimer electrolyte. J Colloid Interface Sci. 2014:2-6. doi:10.1016/j.jcis.2014.11.070.

 

Silvestre-Alcantara W, Henderson D, Bhuiyan L. B. Contact condition for the density profiles in spherical and cylindrical double layers. Mol Phys. 2015;(April 2015):1-3. doi:10.1080/00268976.2015.1026857.

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Silvestre-Alcantara W., Kaja M., Henderson D., Lamperski S., Bhuiyan L. B. Structure and capacitance of an electric double layer formed by fused dimer cations and monomer anions: A Monte Carlo Simulation study, Mol Phys. 2015; doi:10.1080/00268976.2015.1083132.