About Us

Our Mission

Goal: Question and re-think pre-conceived notions of Leonardo da Vinci that are not supported by an objective analysis.

To accomplish this goal it is our intention to:

1. Study his writings and works based upon the science and mathematics of his time.

2. Theorize as to the purpose and meaning of his writings and works based upon this analysis.

3. Objectively analyze each theory using the technology of today.

4. Elicit objective and scientific opinions from experts inside and outside of the artistic community.

5. Publish the findings, clearly identifying that which is objectively proven, and that which is a subjective opinion.

6. Invite further objective analysis and study of the findings.

LeonardosHands.com is excited and proud to begin this process with Il Mancino!

The People of the Sweeney Research Foundation

Benedict Sweeney, Founder and PrincipalBenedict Joseph Sweeney, Founder and Principal of Leonardo's Hands.com
Mr. Ben Sweeney was born in Paterson, New Jersey in 1963. As a child his family moved to San Diego, where he grew up and continues to live today. He graduated from Saint Augustine High School in San Diego (1982) and San Diego State University (1987).

In high school he was diagnosed with Crohn's disease. Though ill he excelled in golf and mathematics and qualified number one for the Junior America's cup world championships, representing the United States. Awarded the"Gold Medal" for excellence in his studies and athletics, golf and mathematics remain two of his three passions.

He graduated from San Diego State University with B.S. in Finance with an emphasis in Quantitative Analysis. True to his passions, he also qualified for NCAA National Championships in golf. Since graduating from SDSU Mr. Sweeney has been a licensed California Real Estate Broker, specializing in finance and mortgage lending. Mr. Sweeney is also involved with the NFIC (National Foundation for Ileitis and Colitis), San Diego Paraplegic Organization, T.E.R.I. and Hospice.
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Dr. Josheph Upton III, MDDr. Joseph Upton III, MD
Dr. Upton attended Baylor College of Medicine in Houston, Texas in 1970. He did his internships in General Surgery at Yale-New Haven Hospital, New Haven, Conneticut from 1970 to 1972 and in Orthopedics in the Military at Eisenhower General Hospital, Augusta, Georgia from 1972 to 1976. Dr. Upton did his Residency at Saint Joseph Hospital, Houston, Texas from 1974 to 1976 and his Fellowship on Hand at Roosevelt Hospital, New York, New York from 1976 to to 1977. His Clinical Title is Senior Associate in Surgery and has an Academic Appointment as Associate Professor at Harvard Medical School. Dr. Upton is Board Certified for Plastic Surgery and Hand Surgery. Dr. Upton's specialities are Hand Surgery, Plastic Surgery, Services/Programs at Children's Hospital Boston - Head and Neck Tuorms, Center for Longwood Skull Base Surgery Program, Vascular Anomailies Center.
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Dr. Robert Goldwyn, MD, AuthorDr. Robert Goldwyn, MD, Author
Dr. Goldwyn was born in Worcester, Massachusetts in 1930. He attended Worcester Academy, Harvard College (A.B. 1952, Magna Cum Laude, Phi Beta Kappa) and Harvard Medical School (M.D., 1956).
He did his internship and residency in general surgery at the Peter Bent Brigham Hospital in Boston from 1956 to 1961. During this time he was the Harvey Cushing Fellow in Surgery at the Peter Bent Brigham Hospital and Dr. Albert Schweitzer’s surgeon in Lambaréné, Gabon.

His plastic surgical training was at the University of Pittsburgh Medical Center from 1961 to 1963. He returned to Harvard Medical School, became Director of the Industrial Accident Clinic at the Peter Bent Brigham Hospital, then Senior Surgeon at the Peter Bent Brigham Hospital and at the Beth Israel Hospital, where he was Chief of the Division of Plastic Surgery from 1972 – 1996.
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