Stories by Daniel C. Schlenoff

The Panama Canal: The World's Greatest Engineering Project [Slide Show]

A century of easier travel

50, 100 & 150 Years Ago

Innovation and discovery as chronicled in past issues of Scientific American

100 Years Ago: Killing Locusts with Bacteria

50 Years Ago: Antarctic Fauna

50 Years Ago: Bee Jargon

Innovation and discovery as chronicled in past issues of Scientific American

50 Years Ago: Nuclear War Planning

Leisure and Luxury in 1912: A Look Back in Scientific American's Archives

In the new century, with a booming economy, a burgeoning middle class enjoyed the fruits of science and technology for life, work and leisure

Motor Vehicles from 1912: A Look Back in Scientific American's Archives

Great Ideas from 1862: A Look in Scientific American's Archives [Slide Show]

Some of these inventions from 150 years ago were very successful; others were hampered by a lack of understanding of real-world conditions or basic science.

50 Years Ago: The First Gamma-Ray Satellite

Innovation and discovery as chronicled in past issues of Scientific American

100 Years Ago: Loss of the Titanic

Innovation and discovery as chronicled in past issues of Scientific American

Titanic: Resonance and Reality

A century ago a great ship struck an iceberg and sank, earning a permanent place among the stories we tell—and lessons we should learn

Titanic: Resonance and Reality

A century ago a great ship struck an iceberg and sank, earning a permanent place among the stories we tell—and lessons we should learn

Aerostats in 1912: A Look in Scientific American's Archives [Slide Show]

Images of lighter-than-air technology from a century ago, two years before World War I broke out in Europe

100 Years Ago: Lighter Than Air

Innovation and discovery as chronicled in past issues of Scientific American

Warfare in 1912: A Look in Scientific American's Archives [Slide Show]

Images of weapons technology from a century ago, two years before World War I broke out in Europe

100 Years Ago: Vickers Machine Gun

Innovation and discovery as chronicled in past issues of Scientific American

50 Years Ago: Bottling the Atomic Incubus

Innovation and discovery as chronicled in past issues of Scientific American

Aviation in 1912: A Look Back in Scientific American's Archives [Slide Show]

The possibilities and promise of the nascent science and art of flight seized the imaginations of inventors and public. Here are some images from our magazine from a century ago

Amundsen Becomes First to Reach South Pole, December 14, 1911

Under the command of Roald Amundsen, the South Pole was discovered 100 years ago