I was asked to make a blog for the NYU IMA Low Res graduate program. (I started with no tangible experience in interaction design.) Math is nature’s poetry, and these are just diary entries.
Much like sound or light, heartbeats speak in sine.
The heart’s cycles of contraction and relaxation are periodic. Blood flowing through the arteries create amplitudes, and frequencies pulse into what we call heartbeats. They speak silently. For some, my heart has raced in infatuation and fallen peaceful with love. For others, it has beat hard in anger and slowed in forgiveness. It speaks without words, yet I’m always aware of its voice.
And so, I wanted to see it.
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This project is an exploration in generative art of the flow of sine between two people. The data is driven to the P5.JS Web Editor by Arduino via two Pulse Sensor Ampeds. Each sensor is worn separately by two individuals (thumb or earlobe placement is recommended). Originally, I was hoping to be able to produce one singular, spherical shape that would move across the x- and y-axes via both sine and cosine (thanks for the inspiration, Jesse); however, that proved a tad too difficult with the “complexity” of my desired visual- Wasn’t quite able to get the math right in that iteration. Instead, I opted to create my illustration using two hearts’ sine graphs, moving in opposite directions.
Please see the sketch editor comments for a detailed explanation of the code. I’d also like to briefly touch on ChatGPT and Gemini. I’ve never incorporated AI into my coding practice before, but it’s been an eye-opening experience. Both LLMs were capable in helping to debug code and rapidly prototype variations of sine/cosine waves.
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I will be adding more information as I integrate my Interface Lab documentation. But for now, I just want to give my heart some time to breathe. It often aches. I don’t know what to do about it, and that’s life.
If anyone is wondering, Russell Kightley has a beautiful 3D view of basic trigonometry detailed below. There is also a link to an interactive P5 sketch I found helpful in my previous post.
Saved the best for last. One of my greatest sources of knowledge, Ellen Nickles, deserves a massive thank you. She is nothing short of incredible, and I never could’ve gotten here without her. A few months ago, I made that bear in preparation for this class (considered submitting it for my “self portrait” assignment). I don’t know how that bear morphed into these balls of sine, but I’m here for it.