Technology The Tractor, the Dynamo, and the ATM: How Automation Waves Follow a Predictable Arc by Anika Shah - Technology April 22, 2026 by Anika Shah - Technology April 22, 2026 The Tractor, the Dynamo, and the ATM: How Automation Waves Reshape Work In 1900, about 41% of the U.S. Workforce farmed. That share dropped to 16% by 1945, to 4% … 0 FacebookTwitterPinterestEmail