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Build An Acoustic Tractor Beam And Control Objects With Sound!

This is definitely a more advanced project, but with less than $75 in parts, you can build your very own working Acoustic Tractor Beam:

You’ll need to 3D print some parts, and code your own Arduino, and check things with an oscilloscope, but if you’re looking for a fun project that ends with the ultimate desk toy, this is it!

Acoustic Tractor Beam

For complete instructions on how to create your very own Acoustic Tractor Beam, check out this Instructables.

Do All Pixar Movies Exist In The Same Universe?

Pixar Characters

There is a theory that has been passed between Pixar fans, living online and through word of mouth, but never officially confirmed: All of the Pixar movies actually exist within the same universe.

And while the theory hasn’t been officially confirmed just yet, Pixar did release a video on their Toy Story Facebook page that stoked the flames:

For a deeper dive into the theory of the Pixar Universe, check out The Pixar Theory.

Build Your Own Snowball Machine Gun

Snowball Machine Gun

Turn a backpack-mounted leaf blower and some PVC pipe and other accessories available at pretty much any hardware store into a snowball machine gun, capable of firing up to 13 snowballs in just 1/2 of a second!

For details on how to build your own Snowball Machine Gun, check out the Build Instructions.