Why & How do I see this heart-shaped cardioid formed in my cup?, by Shouryaveer Mehta, The Startup

Ok, first of all if you don’t know what I’m talking about, I’m talking about this shape in a cup of tea/coffee (or even water). I first got curious about this weird shape appearing in my cup a few…

I Heart Cardioids – David Richeson: Division by Zero

Cardioid (Definition, Equations and Examples)

Representing the Heart Shape Precisely

Story of Cardioid.

Representing the Heart Shape Precisely

Optics: Why does a heart shape sometimes form in a coffee mug? - Quora

How to draw a heart shaped figure

I Heart Cardioids – David Richeson: Division by Zero

Cardioids as envelopes (The cardioid in your coffee cup, part 2)

Cardioids in coffee cups - Chalkdust