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Jul 29, 2016
Build A Self-Propelled Magnet ‘Car’
All you need is three magnets, one AA battery, and aluminum foil
Nov 26, 2015
We Made Our Own Edible Water Bottles. Should You?
Good for the environment, not so good for your taste buds
![How To Make A Smartphone-Powered Hologram [Video]](https://www.popsci.com/uploads/2019/03/18/J2QH4J5SXREARSS45CTPGH2BHA.jpg?auto=webp&crop=357:215,smart&width=357)
Jul 23, 2015
How to Blow Smoke Rings in a Safer Way
No need to inhale if you learn how to blow smoke rings with a bottle
May 20, 2015
How To Turn the World Upside Down [Video]
Build eyewear that flips your perspective around
![How To Turn the World Upside Down [Video]](https://www.popsci.com/uploads/2019/03/18/MCOLXK7ORRDTCVK3BLGUG4NTB4.jpg?auto=webp&crop=357:215,smart&width=357)
Apr 07, 2015
Create Emergency Candles From (Almost) Anything
That butter would be better if you lit it on fire
Jan 31, 2015
How To Build A Cannon That Shoots Wiffle Balls At 50MPH [Video]
Repurpose your leaf blower into a pitching machine
![How To Build A Cannon That Shoots Wiffle Balls At 50MPH [Video]](https://www.popsci.com/uploads/2019/03/18/OSPN323FADLDYJEQLHNYWWAIQM.jpg?auto=webp&crop=357:215,smart&width=357)
Jan 27, 2014
Where And How To Sift For Your Own Fossils
A simple tool you can make yourself, and 27 great locations to try it out
