The first refrigeration device was made in 1748. The first air conditioner was made in 1902.
Facts about products
The average lead pencil will draw a line thirty-five miles long or write approximately fifty thousand English words.
Stitching through a piece of sandpaper is an effective way to sharpen a sewing machine needle.
Edwin Beard Budding invented the lawn mower in 1830.
The compact disc was invented in 1965.