John McAdam was a Scottish scientist born on September 21, 1756. He is best known for his invention of the process of macadamization, which involved using hot-laid tarred aggregate to create a hard and smooth surface on roads, making them less muddy and more durable. His invention revolutionized the way roads were built and is still used today.
Age, Biography and Wiki
💰 Net worth: $1.1 Million (2024)
About
Scottish Scientists who discovered a way to make roads harder and less muddy. He called this process, "macadamization" and would use hot-laid tarred aggregate to create a smooth hard surface on the road.
Before Fame
His father lost the family's life savings on a bad deal at the bank so he went to New York to stay with relatives.
Trivia
He introduced the idea of paving roads with tar, creating the first tarmac (tar Macadam).
Family Life
He married his first wife Gloriana McAdam in 1778; after her death, he married her young relative Anne Charlotte Delancey.
Associated With
The new type of roads he built were necessary for Henry Ford's upcoming invention, the automobile.