Podcast Transcript July 2nd, 2026— Coffee waste as fuel, Nepal same-sex marriage rights, and understanding heat domes
Episode Description: Stanford researchers took cartilage from patients already getting knee replacements (about as degraded as joint tissue gets) and discovered how it could regenerate itself. The cells weren’t replaced or reprogrammed; they just shifted back toward a younger pattern of Read More...
Wet coffee waste becomes coal-grade fuel in under two minutes
BY THE OPTIMIST DAILY EDITORIAL TEAM Researchers at the Korea Institute of Geoscience and Mineral Resources developed a plasma-based process that converts wet coffee grounds into coal-grade biochar in under 90 seconds, with no pre-drying required. The system, described in Chemical Engineering Read More...