History and Chemistry of Sticky Notes

What was the initial mineral 3M mistakenly mined in 1902?

• Sapphire

• Quartz

• Anthropodes

• Cauldron

Who discovered the use of the low-tack adhesive for bookmarks, leading to the creation of Post-it notes?

• Thomas Edison

• Marie Curie

• Art Frey

• Spencer Silver

What type of forces do the microspheres in Post-it note adhesive rely on?

• Covalent bonds

• Hydrogen bonds

• Ionic bonds

• Van der Waals forces