What you get
Sharpen your science skills with this 3-pack of engineering projects.
1. Headphones
Build the headphone headband, rig up the speaker drivers, and experiment with stereo sound. Explore how speakers and other electroacoustic transducers turn electricity into sound, then learn about the historical technologies that made modern headsets possible.
2. Pencil Sharpener
Sharpen some pencils — and your engineering knowhow — with a pencil sharpener you built yourself!
3. Mechanical Lockbox
Build the lock mechanism, construct the box, and enjoy having a place to keep precious items safe and sound.
All 3 projects delivered together.
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Reviews
Fun projects that my 16 year old is really enjoying!
My nieces and nephews loved the crates...they were so proud of "their" creations! Thank you
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