🧠 on Instagram: "The Prince Rupert’s Drop is a teardrop-shaped glass marvel. Formed by cooling molten glass in water, its surface compresses while the core stays under tension, creating incredible strength. The bulbous head can withstand up to 40,000 pounds of force, but a small nick to its tail triggers an explosive shatter. This content is shared strictly for educational purposes. DM us for credit/removal. (No copyright intended) #science #knowledge #learning #viral"

Making a bucket completely from wood without glue or metal (2) | Wood Crafts