Surviving the Holocaust
Charles Krischer, MD, PhD, PE

Charles Krischer, MD, PhD, PE, was born in Belgium in 1938. His family survived the Holocaust and arrived in the United States in 1946.

At just 16 years old, he entered the Massachusetts Institute of Technology, where he completed his undergraduate, graduate, and postdoctoral studies in physics.

Dr. Krischer later served as an officer in the U.S. Army. His wide-ranging career included work as a scientist and engineer, as well as a tenured associate professor at the University of Wisconsin–Milwaukee, where he established a cutting-edge laboratory in nanotechnology.

He also practiced medicine in Arizona until his retirement.

Today, Dr. Krischer’s interests include Zionism and the study of history.

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April 21, 2026
@ 1:00 pm ET
Middle School/High School
Careers in Music
Tim Timmons

Tim Timmons is a Grammy nominated singer, songwriter, and worship leader whose music carries a unique blend of authenticity, humor, and hope. Diagnosed with incurable cancer over two decades ago, Tim has turned his journey into a catalyst for songs that point people toward practicing life with Jesus every day. Beyond his music, Tim founded 10000 MINUTES, a nonprofit and podcast encouraging people to join Jesus in the 10,000 minutes of the week outside Sunday services. His story is portrayed in the film I CAN ONLY IMAGINE 2. Tim lives in Nashville, TN with his wife, Hilary, and four children. Learn more at https://www.timtimmonsmusic.com.

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April 21, 2026
@ 3:00 pm ET
Middle School/High School
Careers in Museums, Exploration, and History Preservation
Tomasina Ray

Tomasina Ray is a museum professional whose career spans some of the most recognized institutions and traveling exhibitions in the industry. She has built her experience across collections management, fine art logistics, and exhibition operations before serving as President of RMS Titanic, Inc. In her current role she directs global programs encompassing deep-sea expeditions, international touring exhibitions, and the stewardship of the RMS Titanic wrecksite. With a Master's in Museum Studies from the University of Washington, Tomasina has spent over 12 years navigating the full arc of museum work — from packing crates and loan agreements to leading expeditions and setting institutional strategy. She is passionate about the next generation of museum professionals and the many unexpected paths this field makes possible.

 

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April 23, 2026
@ 12:00 pm ET
K-12

contact us

For information about participating as a guest speaker or having your class participate, please email Ralph Krauss