Definition

Proper noun: - Oliver Heaviside: An English physicist and electrical engineer who made significant contributions to the development of telegraphic and telephonic communications. He is notably credited with proposing, independently of A. E. Kennelly in 1902, the existence of an atmospheric layer (the Kennelly-Heaviside layer, or ionosphere) that reflects radio waves back to Earth.

Usage

• Proper noun:
  • Heaviside's work on operational calculus was groundbreaking.
  • The Heaviside layer is crucial for long-distance radio communication.

Advanced Usage

• "Heaviside step function": (Mathematics, Engineering) A discontinuous function whose value is zero for negative argument and one for positive argument, widely used in signal processing and systems analysis.
  • The circuit's response was modeled using the Heaviside step function.

Variants and Related Words

• Heaviside layer (noun): An older term for a region of the ionosphere (the E-layer) that reflects medium-frequency radio waves.
• Heaviside calculus (noun): Another term for the operational calculus he developed to solve differential equations.

Synonyms

• Oliver Heaviside (full name).

Noun

1. English physicist and electrical engineer who helped develop telegraphic and telephonic communications; in 1902 (independent of A. E. Kennelly) he suggested the existence of an atmospheric layer that reflects radio waves back to earth (1850-1925)