Junior Skeptic 67: Perpetual Motion
Junior Skeptic 67: Perpetual Motion
In this issue of Junior Skeptic, we’d like you to imagine two impossible, magical machines: The first machine runs forever. You may picture a complex tangle of gears and wheels, or something as simple as a spinning top, but imagine that it never runs down—once started it just keeps going without ever needing more energy. Now imagine a second machine. This one may require fuel or energy to run, but somehow, through some fantastic process, it generates more energy than it consumes. We aren’t the first to imagine these two types of “perpetual motion” machines. Inventors have dreamed of such devices for centuries. How has their search unfolded? Let’s find out!
Read more about this issue of Junior Skeptic.
This issue of Junior Skeptic was originally published in Skeptic magazine 23.2 (2018).
This product is a digital download in PDF format.
Show your appreciation for Junior Skeptic
If you enjoy reading Junior Skeptic and want to show your appreciation above and beyond the $1.99 purchase price please give a donation to the Skeptics Society.
Customers who bought the item shown above also bought… | ||
 | Junior Skeptic 2: Bigfoot | $1.99 |
 | Junior Skeptic 7: Superstition | $1.99 |
 | Junior Skeptic 4: Fortunetelling | $1.99 |
 | Junior Skeptic 5: Urban Legends | $1.99 |
 | Junior Skeptic 33: Cold Reading | $1.99 |