We Alone on Earth: Do It Yourself : How to Build Hallucinogenic Goggles
Entropy | Free Full-Text | Permutation Entropy as a Universal Disorder Criterion: How Disorders at Different Scale Levels Are Manifestations of the Same Underlying Principle
Uncoiling the spiral: Maths and hallucinations | plus.maths.org
Ben Wingrove on Twitter: "@DoctorKarl ping pong balls over eyes + static noise + red light + 25 minutes = no hallucinations for me #experiment http://t.co/Ys9ite4jN4" / Twitter