Single source iOS / Android / web.
Environmental Simulators
University level mathematics
Diversity Metrics prototype
Amazon Best Seller
Mandalar is the classic children's pattern blocks, only better. Mobile touchscreens are a natural for this math manipulative. Tap to rotate, snap 'em together. Zoom in, zoom out, group, scale, color - even draw fractals. Fills the screen from mobile phone, to tablet, to 24" monitor, to SmartBoard. Check out my NumBlox cusenaire rods, too.
Tech: ActionScript 3/AIR for single-source apps for iOS, Android, and desktop.
James Lovelock invented DaisyWorld (on paper) to explain the Gaia Hypothesis - that living things interact with their environment to keep their own living conditions within comfortable bounds. I felt this cried out for a simulator demonstration, and built it as the first proof-of-concept for online CourseWare in 1997.
Tech: Originally in Java, now in ActionScript 3. Responsive layout, like most of my apps.
It's been a joy to create fractals and other math teaching simulators for Professor Michael Frame of Yale University. The Differential Equation Plotter is our most recent offering. A vector heatmap shows the tendency of the system at initial points across the plane.
My degree is actually in applied math, with computer science.
Tech: ActionScript 3, full-screen responsive.
Diversity Metrics lets a student compare the different measures of "species diversity" by sampling species across a collection of "landscapes". This creates an experience of the factors that make "species diversity" such a tricky concept to quantify.
Tech: Mobile-friendly HTML5/jQuery, jqplots, HTML Kickstart for the responsive layout, and my own parameter-setting and scenario engine.
One of my passions is growing vegetables indoors. Check out my bestseller on Amazon.
I know, the stereotype is that programmers can't write. I love writing.
I'm a freelance Web programmer with decades of experience, largely in interactive graphics. I've been developing for the Internet since 1994.
I focus on single source technologies for cross-browser, cross-platform support, including mobile. I do the full software life-cycle, software architecture through specification, design, development, documentation, deployment, and ongoing support. Or whatever subset you need.
I often subcontract for interactive marketing firms, bidding and implementing the tricky parts, such as product configurators, or a custom data-driven interactive map. But most of my Portfolio was developed as high-level teaching courseware for universities such as Yale.
Expertise includes:
Please see my Portfolio of simulators and other online applications. And my Resume.
I also love to write - both technical writing and fiction, plus a bit of graphic storytelling (manga and story illustrations). Excel at specifications, proposals, and documentation. My latest book is Indoor Salad: How to Grow Vegetables Indoors.
Available for a wide range of Web programming and technical writing - please contact me.