Budget physics

Phonotrope Spinning Gears

Get this and other amazing phonotrope spinners here:

From Etsy: BUY NOW: Phototrope Animation Spinners 

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Phonotrope Spinning Gears: one more amazing phonotrope from apyrodesign. When the rate of rotation matches the rate of the smartphone video process (wait for it) twelve animated gears appear to mesh and turn. The precision laser cut acrylic is specifically designed to interact with the video process, similar to the animation effect of a flip book, but in a repeating cycle like that of the phenakistiscope, the 1833 invention that started moving media animation that lead to the development of movies and video. 

Electric Motor Build

Get an easy to assemble kit here (or just buy the replacement wire to build your own like in the video): 
From Educational Innovations: BUY NOW Simplest Motor Kit 

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Electric Motor Build: One of the most important inventions consists of only three basic components as shown here: coil, magnet, and a battery with lead wire posts. The wire of the spinning coil has an insulating coating on it- and this coating is carefully scrapped off one side of the thin wire on each end. When current passes through the coil it becomes an electromagnet and the permanent magnet repels it making it spin- as it turns the current goes on and off depending on if the copper wire posts are in contact with the bare wire side (current on) or the part of the wire with the insulating coating intact (current off). When the current is off momentum keeps the rotation going until the next push. The physics of converting electric energy to rotational kinetic energy- and a fun DIY project! 

3D Phonotrope Spinner

Get this and other amazing phonotrope spinners here:

From Etsy: BUY NOW: Phototrope Animation Spinners 

Note: this site contains affiliate links for which I may be compensated

3D Phonotrope Spinner: spiders on a treadmill! When the rate of rotation matches the rate of the smartphone video process (wait for it) six animated 3D-printed spiders spring into motion. The laser cut acrylic, with precisely placed spiders, is specifically designed to interact with the video process, similar to the animation effect of a flip book, but in a repeating cycle like that of the phenakistiscope, the 1833 invention that started moving media animation that lead to the development of movies and video. Another fantastic design by Travis at aPyroDesign. 

 


Tiny Leaf Blower Coanda Effect Toy

Get the "World's Smallest Leaf Blower" here:
From Amazon: BUY NOW: Smallest Leaf Blower

An inexpensive supply of styrofoam balls available here:
From Amazon: BUY NOW: Styrofoam Balls Assorted

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Tiny Leaf Blower Toy: this little battery operated blower is great for experimenting with the Coandă effect. Here an air stream attaches and wraps around the styrofoam ball trapping it in the center of the stream. As the air changes direction to flow around the ball, momentum is imparted to push the ball against gravity and levitating it in equilibrium. A cylinder constrains the airflow and temporarily changes the dynamics which allows the airstream to push the ball up and out- and if one aims carefully the ball will fall back into the Coandă effect trap.