Brainstuff
How do scratch-and-sniff stickers work?
- Autor: Vários
- Narrador: Vários
- Editora: Podcast
- Duração: 0:01:57
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Sinopse
Scratch-and-sniff stickers are novelties that delight both children and adults. Sniff out the ingenious technology that makes them work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.