Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time. Scent marks the
At the beginning of this year, I picked up a rather unfortunate habit: vaping. More specifically, I started smoking flavored vaporizers made in the so-called “Vape Valley” of China and sold throughout the United States. Flavored nicotine vaporizers are largely illegal in the United States, yet convenience stores and tobacconists across the country have generated