Alexander Graham Bell developed the telegraph, microphone, and telephone back in the late 1800s. We’ll be talking about electromagnetism in a later unit, but we’re going to cover a few basics here so you can understand how loudspeakers transform an electrical signal into sound.
This experiment is for advanced students.We’ll be making different kinds of speakers using household materials (like plastic cups, foam plates, and business cards!), but before we begin, we need to make sure you really understand a few basic principles. Here’s what you need to know to get started:
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That is an example of a non-Newtonian fluid with food coloring. See this link for details: https://www.sciencelearningspace2.com/2010/06/corny-slime/
What is the purple stuff
it was so fun
I’m glad you enjoyed it!
Thank you Aurora for dolng that. I am Joshua your student from the zoom meaning. I am inerested in speakers.
That corn starch would haunt me to the rest of my life! š
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this was avalible last time, now it is not