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…

geometry - Why intersection of chords form a cardioid? - Mathematics Stack Exchange

calculus - Cardioid in coffee mug? - Mathematics Stack Exchange

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

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

All stories published by The Startup on February 06, 2020 – Medium

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

heart shaped curve –

Cardioid - MacTutor History of Mathematics

I Heart Cardioids – David Richeson: Division by Zero

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