How Teen Mathematician Hannah Cairo Disproved a Major Mathematical Wave Conjecture When she was just 17 years old, Hannah Cairo disproved the Mizohata-Takeuchi conjecture, breaking a four-decade-old mathematical assumption By Emma R. Hasson edited by Sarah Lewin Frasier When Hannah Cairo was 17 years old, she disproved the Mizohata-Takeuchi conjecture, a long-standing guess in the…