What are 5 interesting facts about gold?
Five Interesting Facts About Gold
- All the gold mined could fit in a cube 21 meters per side. Despite gold’s rarity and value, the total amount mined could fit in a surprisingly small space.
- Gold never erodes or tarnishes. Gold resists corrosion and acids, so gold artifacts remain unchanged for thousands of years.
- Gold is edible! Some expensive desserts feature real gold leaf.
- NASA uses gold-coated visors on astronaut helmets to protect their eyes from solar radiation.
- The symbol for gold, Au, comes from the Latin word aurum meaning “shining dawn” or “glow of sunrise.”
Other interesting facts: gold conducts electricity and heat very efficiently, it reflects infrared radiation well, and neutron stars may contain stellar amounts of gold from supernovas!