Entrant Profile

David Harold Chester

Location: Petach Tikva, Centre Israel


Company: private research


Profession: Engineer/Designer


Number of times previously entering contest: 1


Favorite design and analysis tools: Various simulation programs for mechanical operation and non-linear motion including landing-impact (and other impact) of aircraft. Stability studies of systems using linearized criteria. Improved way of explaining how macroeconomics works.

Hobbies and activities: Writing and explaining how things work

Inspired by: The need for making progress in scientific knowledge and its engineered applications.

2019 Entries

Date Title Category Views Votes
06/13 Mary Poppins to Replace Helicopter Aerospace & Defense 53 0

2015 Entries

2014 Entries

Date Title Category Views Votes
04/18 Understanding how our social system works Sustainable Technologies 2371 2

2012 Entries

Date Title Category Views Votes
03/26 Teaching Macroeconomics by Model Safety and Security 2341 0