Lab-Grown Human Cells Form Working Circuits in Rat Brains

An interview with the scientist who did it; Teenager solves primes  problem; How zero-knowledge proofs work; New episode of the Quanta Science Podcast

Math and Science News from Quanta Magazine View this email in your browser   Human Organoids Successfully Integrated Into a Rat's Brain NEUROSCIENCE   Human Cells Adopted by Animal Brain Circuitry for the First Time By ALLISON WHITTEN Letting human brain organoids grow in animal brains could be an ethical new option for experimental studies of neurological disorders. Read the blog Q&A   Why Sergiu Paşca Grows Human Brain Substitutes By CLAUDIA DREIFUS With stem cell technology and lab-grown brain organoids, Paşca seeks the causes of autism and other neuropsychiatric conditions. Read the interview NUMBER THEORY | ALL TOPICS   Teenager Solves Stubborn Riddle About Prime Number Look-Alikes By JORDANA CEPELEWICZ; Video by EMILY BUDER, NOAH HUTTON, TAYLOR HESS & RUI BRAZ In his senior year of high school, Daniel Larsen proved a key theorem about Carmichael numbers — strange entities that mimic the primes. "It would be a paper that any mathematician would be really proud to have written," said one mathematician. Read the article | Watch the video CRYPTOGRAPHY   How Do You Prove a Secret? By SHEON HAN Zero-knowledge proofs allow researchers to prove their knowledge without divulging the knowledge itself. Read the explainer SMELL   Machine Learning Highlights a Hidden Order in Scents By ALLISON PARSHALL AI is mapping the constellations of chemicals that interact to form fragrances. Read the blog QUANTA SCIENCE PODCAST   The Brain Has a 'Low-Power Mode' Podcast hosted by SUSAN VALOT; Story by ALLISON WHITTEN Neuroscientists uncovered an energy-saving mode in vision-system neurons that works at the cost of being able to see details. Listen to the podcast Read the article Follow Quanta Simons Foundation 160 5th Avenue, 7th Floor New York, NY 10010 Unsubscribe | About Quanta Privacy Policy | Terms | Contact Us   Copyright © 2022 Quanta Magazine, an editorially independent division of the Simons Foundation