Best Electrical

Alan Blumlein was a British electronics engineer who profoundly impacted modern audio and visual technology. In 1931, he invented and patented stereophonic sound, a method of sound reproduction that creates the illusion of multi-directional audible perspective. Beyond audio, Blumlein made significan...

Karl Ferdinand Braun was a German physicist whose experiments with cathode rays led to the development of the Braun tube in 1897, an early cathode-ray tube with a fluorescent screen. The device became an ancestor of electronic oscilloscopes and later display technologies, including television, altho...

Mikhail Dolivo-Dobrovolsky was an engineer born in the Russian Empire who developed practical three-phase alternating-current equipment while working in Germany, particularly at AEG. His work included three-phase induction motors, transformers, and methods for transmitting electrical power over long...

Galileo Ferraris (1847-1897) was an Italian electrical engineer and physicist whose alternating-current experiments helped establish the principle of the rotating magnetic field. In 1885 he described how alternating currents with a suitable phase difference could produce a rotating field capable of...

Elihu Thomson was a British-born American electrical engineer and inventor who co-founded the Thomson-Houston Electric Company. Over his career, he secured nearly 700 US patents related to electrical power systems, lighting, and alternating current technology. A merger of his company with Edison Gen...

Werner von Siemens, born Ernst Werner Siemens, was a 19th-century German electrical engineer and industrialist who lived from 1816 to 1892. He is distinguished by his application of the dynamo-electric principle in 1866, which significantly improved electrical generation technology. In 1847, he co-f...

Joseph Henry (1797–1878) was an American scientist and engineer who served as the first Secretary of the Smithsonian Institution. In the early 1830s, he independently discovered electromagnetic induction around the same time as Michael Faraday, though Faraday published his findings first. Henry is a...

Frederick Terman was an American electrical engineer, Stanford University professor, and academic administrator who played a major role in developing the university's links with industry. As dean of Stanford's School of Engineering and later provost, he supported research partnerships and helped est...

Charles Wheatstone (1802–1875) was an English physicist and inventor. He is best remembered for his contributions to the development of the electric telegraph, particularly the Cooke-Wheatstone telegraph patented in 1837. He also invented the stereoscope, an optical device for viewing three-dimensio...

André-Marie Ampère was a French physicist and mathematician whose work laid the foundations for electrodynamics. He investigated the relationship between electricity and magnetism, pioneering research into electric currents and magnetic fields. His discoveries were crucial to understanding electroma...

Albert W. Hull was an American physicist and electrical engineer associated with the General Electric Research Laboratory. He developed the magnetron in 1921 and made important contributions to vacuum-tube technology, including the dynatron. The magnetron generated microwave-frequency electromagneti...

The Klein Tools Journeyman Screwdriver is a durable manual screwdriver designed for professional use in electrical work and trades. Its notable ergonomic cushion-grip handle enhances torque and reduces hand fatigue during repetitive tasks. This precision tool is commonly utilized by electricians, te...

David Packard was an American electrical engineer, businessman, and philanthropist who co-founded Hewlett-Packard with William R. Hewlett in 1939. The company began in Palo Alto, California, and became a major producer of electronic test equipment before expanding into computers and printers. Packar...

Allen B. DuMont was an American electrical engineer and entrepreneur whose work helped make cathode-ray-tube television practical for commercial manufacture. He founded DuMont Laboratories, which produced television equipment and helped establish the DuMont Television Network in the United States du...

Hiram Stevens Maxim was an American-British inventor best known for designing the Maxim gun. Developed in 1884, this firearm represents the first fully automatic recoil-operated machine gun. Its innovative design dramatically altered late 19th-century infantry tactics and influenced subsequent weapo...

Ányos Jedlik was a Hungarian physicist, teacher, inventor, and Benedictine monk whose work contributed to the early development of electrical engineering. He built an early direct-current electric motor and developed a dynamo machine based on the principle of self-excitation. Jedlik is studied in hi...

Charles F. Brush was an American inventor and entrepreneur whose work helped establish practical electric arc lighting for streets and public buildings. Based in Cleveland, he developed an improved dynamo to supply steady current and refined the arc-light fixture, then demonstrated his system in Cle...

Moritz von Jacobi was a prominent German-Russian physicist and engineer who made significant contributions to early electromagnetism. In 1834, he developed the first practical electric motor featuring a rotating commutator. Five years later, he further demonstrated the potential of electric power by...

Nikola Tesla was a visionary inventor and engineer whose work fundamentally shaped the modern electrical age. He championed alternating current (AC) over Thomas Edison's direct current (DC), a victory that enabled the efficient long-distance transmission of electricity, making modern power grids pos...

Peter Cooper Hewitt was an American inventor and electrical engineer known for developing the mercury-vapor lamp. He patented an early practical form of the lamp in 1901, using an electric arc in mercury vapor to produce light. The device was more efficient than many earlier electric lamps and becam...

Judith Love Cohen was an American aerospace and electrical engineer who worked on the Abort Guidance System for the Apollo Lunar Module. Her work contributed to the guidance system used during the Apollo 13 mission, when the lunar module served as a lifeboat after the service module was damaged. She...

Frank J. Sprague was an American electrical engineer and inventor known as a pioneer of electric traction systems. A graduate of the United States Naval Academy, he founded the Sprague Electric Railway and Motor Company and built the first large-scale electric street railway system in Richmond, Virg...

Thomas Davenport was an American blacksmith and inventor credited with building the first practical direct current (DC) electrical motor in the 1830s. Working in Vermont, he developed a rotary electric motor using a commutator and electromagnets, receiving a patent for his design in 1837. His invent...

Alessandro Volta was an Italian physicist instrumental in the development of electricity. His invention, the voltaic pile – the first electric battery – created a continuous electrical current. This groundbreaking work established a fundamental understanding of electrochemical reactions and provided...

William Stanley Jr. was an American electrical engineer and inventor who made pivotal contributions to the development of alternating current (AC) power systems. Working under contract with George Westinghouse in 1885 and 1886, he successfully demonstrated the first practical AC transformer system i...

William Sturgeon (1783–1850) was an English physicist and inventor who made foundational contributions to the field of electromagnetism. In 1825, he built the first practical electromagnet by wrapping a horseshoe-shaped iron core with uninsulated wire carrying an electric current, demonstrating its...

Edith Clarke was an American electrical engineer who became the first female professor of electrical engineering in the United States. She is recognized for inventing the Clarke calculator, a graphical device patented in 1925 that solved mathematical equations related to electric power transmission...

Beatrice Hicks (1919–1979) was an American engineer who co-founded the Society of Women Engineers in 1950. She worked in telecommunications and aerospace, developing environmental sensing devices, proximity sensors, and switches used in aircraft. Her engineering work in the aerospace industry includ...

Andre-Marie Ampere was a 19th-century French physicist whose work established electromagnetism as a quantifiable field. He meticulously investigated the relationship between electricity and magnetism, developing fundamental theories that underpin modern electrical science. His research led to the de...