Which inventor contributed to safer gas masks and traffic signaling devices in the early 20th century?

Which inventor contributed to safer gas masks and traffic signaling devices in the early 20th century?

• A. Thomas Edison
• B. Nikola Tesla
• C. Garrett Morgan
• D. Alexander Graham Bell

Answer: (C)

In this period, tackling real-world safety hazards was a key driver of innovation. Garrett Morgan stood out by creating devices specifically aimed at protecting people in everyday danger. He invented the safety hood gas mask, an early respirator that could shield workers from smoke and toxic fumes during fires and hazardous environments. He also patented a three-position traffic signal that introduced a cautious—stop, proceed, and warning—phase, which helped reduce intersection accidents and improve traffic safety. These contributions show a direct, practical focus on public safety, unlike the other inventors listed who are best known for advances in electricity, communication, or transportation in different domains.

In this period, tackling real-world safety hazards was a key driver of innovation. Garrett Morgan stood out by creating devices specifically aimed at protecting people in everyday danger. He invented the safety hood gas mask, an early respirator that could shield workers from smoke and toxic fumes during fires and hazardous environments. He also patented a three-position traffic signal that introduced a cautious—stop, proceed, and warning—phase, which helped reduce intersection accidents and improve traffic safety. These contributions show a direct, practical focus on public safety, unlike the other inventors listed who are best known for advances in electricity, communication, or transportation in different domains.