<story><title>Can Repelling Magnets Replace the Spring in a Pogo Stick?</title><url>https://www.kjmagnetics.com/blog.asp?p=pogo-stick-spring</url></story><parent_chain><item><author>umvi</author><text>Seems like electromagnets could help compensate for distance by drawing more current when far apart, and less when close together. A microcontroller could essentially make the force linear like a spring. Of course, then you need wires hooked up to your pogo, and that might be scary if the microcontroller has a bug (or somehow fails) since you are now essentially hopping onto a railgun.</text></item></parent_chain><comment><author>azhenley</author><text>About as scary as my Tesla on autopilot going around a curve at 75mph. Every time I ask myself, what if there is a bug or if it turns off...</text></comment>
<story><title>Can Repelling Magnets Replace the Spring in a Pogo Stick?</title><url>https://www.kjmagnetics.com/blog.asp?p=pogo-stick-spring</url></story><parent_chain><item><author>umvi</author><text>Seems like electromagnets could help compensate for distance by drawing more current when far apart, and less when close together. A microcontroller could essentially make the force linear like a spring. Of course, then you need wires hooked up to your pogo, and that might be scary if the microcontroller has a bug (or somehow fails) since you are now essentially hopping onto a railgun.</text></item></parent_chain><comment><author>applecrazy</author><text>Not only that, but you can adjust the “springiness” by having a variable spring constant.</text></comment>