Science Reveals How to Roll the Perfect Joint

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July 11, 2023

How much cannabinoid does a cannabis joint deliver? The answer depends on the strain of marijuana, but a new study reveals that it's also surprisingly dependent on the size of cannabis leaf particles in the tube. Researchers used a smoking machine to compare joints with different architectures to see which particle size packs the most punch. Read more in this week's top story!

Sophie Bushwick, Associate Editor, Technology

Drug Use Science Reveals How to Roll the Perfect Joint Researchers used a smoking machine to test the intensity of marijuana rolled into joints By Rachel Berkowitz

Artificial Intelligence AI Could Quickly Screen Thousands of Antibiotics to Tackle Superbugs As the threat of antibiotic resistance increases, new antibiotics are imperative—and AI could widen the pipeline By Jaimie Seaton

Pollution How to Destroy 'Forever Chemicals' Health-damaging PFASs are nearly impossible to break down—but a new hot-water technique can destroy them By Lars Fischer

Pollution Proposed EPA Rule That Companies Must Report Toxic 'Forever' Chemicals Lacks Limits and Cleanup Requirement A federal rule would require companies to disclose whether their products contain chemicals known as PFASs By Michael Scaturro,Kaiser Health News

Space Exploration I Survived a Weekend at Biosphere 2 Pretending to Be in Space At a stay in Biosphere 2, I went in skeptical but learned to understand why analog astronauts love what they do By Sarah Scoles

Computing A Simple Replication Agreement Could Improve Trust in Science A replicability crisis threatens computational science without shared code, data and methods from studies. A new replication agreement system can mitigate this crisis. By Or Cohen-Sasson,Ofer Tur-Sinai

Renewable Energy U.S. Offshore Wind Industry Is 'Coming to Life' The Biden administration has approved a third big offshore wind project, this one near the Atlantic City gambling hub, expanding power capacity and jobs By Heather Richards,E&E News

Space Exploration Some of Earth's Most Famous Art Started with Stardust Astrophysics reminds us that earthly beauty has stellar origins By Sanjana Curtis

QUOTE OF THE DAY "Gizmodo's error-plagued test speaks to a larger debate about the role of AI in the news. Several reporters and editors said they don't trust chatbots to create well-reported and thoroughly fact-checked articles. They fear business leaders want to thrust the technology into newsrooms with insufficient caution. When trials go poorly, it ruins employee morale as well as the reputation of the outlet, they argue." Pranshu Verma, The Washington Post

FROM THE ARCHIVE Is Cannabis Good or Bad for Mental Health? The evidence says it can go either way. By Jonathan N. Stea | January 2019

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