Is a 100 mph Sneeze Real? The Fine Print on a Famous Number - Urban Legend #8

Send us Fan Mail Is a 100 mph Sneeze Real? The Fine Print on a Famous Number - Urban Legend #8   How fast do you sneeze?  Is the 100 mph sneeze speed accurate? Joshua does his thing and compares sneeze speed measurements from air, droplets, and clouds to see why one number doesn’t fit all and why the famous 100 mph claim needs context. (Honestly, who does that?!)   ## What You'll Learn - Sneeze speed depends on what you measure. - Droplets have been photographed near 100 mph. - Six feet is a measurement, not a force field and not a promise…. ## Key Claims - Studies measured sneeze airflow and plumes far below 100 mph, so the number is not universal. - High-speed photography in the 1940s recorded droplets near 100 mph, though not every sneeze does this. - Under some conditions, a turbulent sneeze cloud can remain airborne for up to 10 minutes and travel up to 26 feet; far exceeding standard social distancing estimates. ## Sources - Wells, William Firth. Airborne Contagion and Air Hygiene; an Ecological Study of Droplet Infections. https://uosc.primo.exlibrisgroup.com/discovery/fulldisplay?vid=01USC_INST:01USC&search_scope=MyInst_and_CI&tab=Everything&docid=alma991026210859703731&lang=en&context=L&adaptor=Local%20Search%20Engine&query=any,contains,(OCoLC)14668684&sortby=rank&virtualBrowse=true - Published for the Commonwealth Fund by Harvard University Press, 1955 - The book that started it all. - Tang, Julian W., et al. - Airflow Dynamics of Human Jets: Sneezing and Breathing - Potential Sources of Infectious Aerosols - https://pmc.ncbi.nlm.nih.gov/articles/PMC3613375/ (2013) — Average maximum sneeze airflow of about 36 mph across 60 sneezes. Sneeze plume measured near 10 mph; Wells's 224 mph was inferred - Han, M. et al. - Experimental measurements of airflow features and velocity distribution exhaled from sneeze and speech using particle image velocimetry - https://pmc.ncbi.nlm.nih.gov/articles/PMC8663001/ - Laser measurement of sneeze airflow, average maximums. (2021) - Bourouiba, L. - Turbulent Gas Clouds and Respiratory Pathogen Emissions: Potential Implications for Reducing Transmission of COVID-19 https://jamanetwork.com/journals/jama/fullarticle/2763852  — Turbulent gas cloud can carry droplets about 26 feet (2020) - Turner, C. E., Jennison, M. W., & Edgerton, H. E. (1941). “Public Health Applications of High-Speed Photography.” American Journal of Public Health and the Nations Health, 31(4), 319–324. https://pmc.ncbi.nlm.nih.gov/articles/PMC1531372/pdf/amjphnation00719-0061.pdf - 1940s high-speed photography showed droplets near 100 mph (Original 1940s aerobiology publication; peer-reviewed review of expiratory droplet history) - Sound Effects freesound_community, Alexander Jauk from Pixabay  AND Simmie SimSim [11/8/2026 - Oh what a difference some sleep makes. That's two nights-in-a-row with 5+ hours of slumber. I hope the extra time on this one was worth it. Please let me know. Or rather. can you even tell the difference. The workflow is improving. I missed yesterday's midnight deadline by exactly an hour. Stupid soundscapes. They really lure you in.... Okay, I will continue onward. It may just get fun!] Support the show If you have an idea for a topic, or some sort of impressive tip, trick or life hack that you MUST share, I want to hear about it. Please reach out to me at: [email protected]  Thank you for listening. Please SUBSCRIBE, FOLLOW, RATE and REVIEW wherever you listen (because that stuff may count. Who knew?!) https://www.linkedin.com/in/speakingofvo/ https://www.instagram.com/OhThatsAFact