We shared about Henry (age 12) and his 3D printed parabolic reflector for the iPhone, the Annoyinator, earlier this year.
With the help of his Dad, Henry has launched a successful Kickstarter campaign to fund the purchase of a 3D printer. Check out these videos that they created for this effort that show the Annoyinator in action.
The following is a somewhat paraphrased conversation between Henry (age 12) and Dad (age, uh, somewhere north of 40) on the way home from Thanksgiving…
Henry: Hey Dad, can you make a loudspeaker that aims only in one direction?
Dad: Well, sort of. Because of the way sound works, you need a very wide loudspeaker to make it directional and ‘point’ in some direction. For a reasonable size loudspeaker, you can make it very directional only at high frequencies.
Henry: Awesome. Can I make something that attaches to my iPod Touch and aims the sound from the ‘Dog Whistle’ app?
Dad: Yes, you can do that.
Henry: That’s what I want to make!
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