Fall 2025

01 – Mac Computers – Essentials and Support
02 – From Pork to Plate
03 – Shape Shifters: Geometry in Art
04 – Ames History Timeline to 1940
06 – Proportional Representation in the United States
07 – Unsung Heroes of the 1950’s and ‘60s Civil Rights Movement
08-P – Exploring Space Frontiers
08-Z – Exploring Space Frontiers
09 – Infectious Diseases – The Top Five Killers
10 – Why We Snore
11 – Beginning Ukulele
12 – State Historical Society of Iowa Overview
13 – Photography Tips and Techniques
16 – Authentic Italian Home Cooking – Christmas Eve Dinner
17 – Learn to Play Pickleball
18 – Simplifying Physics – The Principle of Least Action
19 – Oh Sleep! It is a Gentle Thing
20 – Bathed in Radiation
21-P – Medieval England, 1066-1485
21-Z – Medieval England, 1066-1485
22-P – The Invasive Plant Species of Iowa
22-Z – The Invasive Plant Species of Iowa
23-P – Before You Donate
23-Z – Before You Donate
24 – Where on Earth is the U.S.? – Are We in the Top-10?
26 – Beginning Native American Style Flute
27 – Strengthening Our Community With AARP Iowa
28 – Navigating the Medical World in the 21st Century
29 – Planting Pollinator Habitats for Monarchs
30 – The Only Dance in Iowa: A History of Six-Player Girls’ Basketball
31 – Russia’s Large Territory in Asia: A History Review of the Russian Imperial Expansion
32 – Counterfeit Consumer Goods and Health Concerns
33-P – What in the World!?!
33-Z – What in the World!?!
34 – The Mongol Empire in World History and the Mongols Today
35 – Sabermetrics: Rethinking Performance in Baseball, Other Sports, and Life
36 – Science in the News
37-P – Give ‘em Hell, Harry
37-Z – Give ‘em Hell, Harry
38 – Memories of You

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Fall 2025
20 – Bathed in Radiation

20 – Bathed in Radiation

Instructor

Sam Wormley

Sam Wormley has degrees in mathematics and electrical engineering and taught as an adjunct professor of astronomy at Marshalltown Community College for 17 years.He regularly teaches OLLI classes on science and technology.

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One week: Wednesday, Oct. 22, 2025

Cost: $25

9 – 10:30 a.m. CT

Class limit 35

Online with Zoom

Course Description

We are bathed in radiation all around us, from our electronics, lightning,radioactivity, our sun, stars, galaxies, and the afterglow of the Big Bang. This course helps you to understand and appreciate what is normal, what is harmless, and when there should be concern.

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Osher Lifelong Learning Institute

2624 Howe Hall,
537 Bissell Road
Ames, IA

Heather Bristow, hbristow@iastate.edu

Phone: (515) 294-5790