Cool Goodle Doodle for Jewish actress / inventor Hedy Lamarr

Hi Everyone!

Google posted a Google Doodle in honor of the 101st birthday of Jewish actress / inventor Hedy Lamarr.
I posted the doodle and short video at:
www.jr.co.il/t/doodles/index-2015.htm

My Jewish Trivia Quiz includes a multiple choice question about what Hedy Lamarr invented.
See if you know the answer (or take an educated guess) at:
www.jewish-trivia.com/q1029

Please share. Thank you!

Have a good night,
Jacob