This is a twisting story, but be patient.
Yehudi Menuhin’s parents rented an apartment. The landlord then told them “You’ll be glad to know we don’t rent to Jews!”. They then told him they were, and found another place to live. They named their son Yehudi, which means “The Jew”.
He became a famous violinist; a child prodigy. When he was to appear on the Bob Hope radio show. During his introduction by Hope, singer/comedian Jerry Colonna drew howls of laughter by interrupting with “Who’s Yahooti?”. That became a famous catchphrase, even inspiring a popular song.
During World War II, German U-boats were a terror on the seas. These submarines would see American aircraft miles away, and would dive to avoid being bombed. The Americans developed lights to shine on the planes, to match the sky illumination, which worked as camouflage. The planes were suddenly nearly invisible until they were half a mile away, not giving the U-boats time to submerge. These were then called Yehudi Lights.
Despite this development, they were never used in the war. Why? Radar had been created and deployed.
So, there’s your answer, at last. Radar.