

The Lightbulb Strikes Back
Apr 28, 2020
Ainissa Ramirez, a materials scientist and author of 'The Alchemy of Us,' explores the profound bond between humans and their inventions. She reveals how materials like steel and glass shape not only our environment but also our behaviors. The discussion highlights the historical rivalry between Thomas Edison and William Wallace in lighting technologies and their effects on our circadian rhythms. Ainissa also addresses the impacts of blue light on sleep and how artificial light threatens firefly courtship, prompting reflections on the nature of scientific progress.
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Wallace vs. Edison
- Thomas Edison visited William Wallace, saw his light invention, and then proceeded to compete against him.
- Anissa Ramirez feels Wallace was robbed of credit and is largely forgotten.
Artificial Light's Impact
- Our bodies have daytime and nighttime modes regulated by blue light.
- Artificial light keeps us in constant daytime mode, disrupting our natural rhythms.
Managing Blue Light
- Reduce blue light exposure at night by dimming lights and using redder ones.
- Increase blue light exposure in the morning by going outside or using blue LEDs.