Photo by Steven Cordes on Unsplash

Not as complicated as Schrödinger’s cat though. Photo by Jackie Zhao on Unsplash

Photo by Joanna Kosinska on Unsplash
Jon Tyson from Unsplash

A snake but not in Python. Source: Wikimedia Commons, photographed by Rushen.

The Fibonacci sequence gives rise to the golden ratio found in many beauties of nature. This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.

At Least One in Many

An OR logic gate. Arturo Urquizo assumed (based on copyright claims). / CC BY-SA (

Dietmar Rabich / Wikimedia Commons / “London (UK), Elizabeth Tower, -Big Ben- — 2010–1979” / CC BY-SA 4.0

Basket of Fruits, c. 1830s, National Gallery of Art Collection
A Couple Reading by Candlelight c.1650–75, attributed to Gerrit Dou — Royal Collection UK

Kelvin Tan

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