Emmiting Light
مرة 1,121 شوهد
وصف الفيديو:
In this O Wow Moment Video from the Children's Museum of Houston, we explore how LEDs work and how you can make a simple flashlight using an LED, some self-adhesive foam, and a battery.
تمت الإضافة
08 فبراير 2017
التعليقات
