Category: Text

Lewis Latimer

Lewis Howard Latimer

Lewis Latimer’s many inventions included an evaporative air conditioner, an improved process for manufacturing carbon filaments for light bulbs, and an improved toilet system for railroad cars.

Read More »

Wetlands Mystery

A classic whodunit story with a biological twist—what caused this once thriving wetland area to die? Use your science knowledge to crack the case!

Read More »
Marie Van Brittan Brown

Marie Van Brittan Brown

In 1966, Brown invented a video home security system. Her idea, which has expanded beyond just security for homes, has influenced security systems in businesses around the world.

Read More »
Elijah J. McCoy

Elijah J. McCoy

McCoy is most well-known for inventing an automatic lubricator for oiling the steam engines of locomotives and ships, which was patented in 1872 as “Improvement in Lubricators for Steam-Engines”. His

Read More »