What 15 Groundbreaking Inventions Looked Like When They First Came Out
Before electric refrigerators, “iceboxes” were made of wood and filled with ice.
Iceboxes used various materials to keep the ice frozen and the food inside cool, including cork, tin, zinc, sawdust, and seaweed. In 1835, Jacob Perkins patented a refrigerator with a liquid ammonia vapor-compression cycle.
Thomas Edison is often credited with inventing the light bulb in 1879, but other inventors played a part in its creation.
While he did patent the first commercially successful light bulb in 1879, its history dates back to 1800 with Italian inventor Alessandro Volta’s first electric battery called the voltaic pile. Humphry Davy also invented the first electric lamp in 1802.