Electricity

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Two men helped Thomas Edison make the light bulb functional, Ludwig Boehm and Charles Batchelor. Boehm blew the glass used to make the light bulbs. Batchelor experimented to develop a long-lasting glowing filament for the bulb.

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  • How did Albert Einstein change the world?

    Q: How did Albert Einstein change the world?

    A: Time magazine named Albert Einstein the "Person of the Century" for the 20th century. Given his achievements as a physicist, the epochal impact of his ideas and theories, and his courageous personal and political stands on important issues, it is easy to see why Einstein was a top contender.
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  • Where does hydropower come from?

    Q: Where does hydropower come from?

    A: Hydropower, also known as hydro-electric power, is generated by hydro-electric dams placed on many of the world's major rivers. These structures divert the flow of the river and harness the force of the water to turn massive turbines that power electricity generators.
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  • How do solar cells work?

    Q: How do solar cells work?

    A: Solar cells work by collecting sunlight and converting it to usable energy. This energy can be used onsite or transported short distances to the local power grid. A typical modern solar cell consists of a transparent protective outer layer, a dark layer to absorb photons and a network of support systems underneath to improve the cell's operational efficiency.
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  • What is the electromagnetic theory?

    Q: What is the electromagnetic theory?

    A: The electromagnetic theory is a united theory of electromagnetism established by James Clerk Maxwell. This theory primarily discusses the relationships between electric field and magnetic field based from previous observations and experiments related to electricity, magnetism and optics combined.
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  • How does a dynamo generator work?

    Q: How does a dynamo generator work?

    A: A dynamo generates electricity by using a magnetic field to imbue wires with an electric current. According to the Edison Tech Center, this process generates a direct current that can then be fed down the wires to an alternator for conversion to an alternating current; these alternators are sometimes known as generators.
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  • What was Benjamin Franklin's kite experiment?

    Q: What was Benjamin Franklin's kite experiment?

    A: According to Code Check, Benjamin Franklin's famous kite experiment refers to an attempt by the renowned scientist, philosopher and politician to prove his theories about electricity. He took a simple kite out on a stormy day with his son and made the shocking discovery that lightning was related to the phenomenon of static electricity.
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  • What are Isaac Newton's scientific achievements?

    Q: What are Isaac Newton's scientific achievements?

    A: Isaac Newton’s scientific achievements include his three laws of motion — inertia, acceleration, and action and reaction the law of universal gravitation, the reflecting telescope and the theory of calculus. Newton published important written works, the most famous of which is “Principia Mathematica,” where he described elliptical orbits, forces in motion, fluids and mechanics.
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  • Can you use a 12-gauge wire with a 30-amp breaker?

    Q: Can you use a 12-gauge wire with a 30-amp breaker?

    A: A 30-amp breaker does not operate safely with a 12-gauge wire. The minimum wire size that is allowable for use with a 30-amp breaker is 10 gauge.
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  • How can I make static electricity?

    Q: How can I make static electricity?

    A: There are many ways to make static electricity. To create a small amount of static electricity a person can develop a static charge by rubbing a glass rod with a silk cloth or amber against wool. The static charge will allow the glass and the amber to attract small amounts of paper and plastic.
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  • What does non-renewable energy mean ?

    Q: What does non-renewable energy mean ?

    A: Non-renewable energy means the energy source will eventually run out. Most of the non-renewable energy sources belong to the fossil fuel category. Coal, natural gas, crude oil and liquid petroleum gas are examples of non-renewable energy sources.
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  • How are conductors and insulators alike?

    Q: How are conductors and insulators alike?

    A: Conductors are materials that allow the flow of electric current, whereas insulators do not. While conductors and insulators are different in that respect, their similarity is in their makeup of atoms. It is these atoms that either have room to float around to facilitate conduction or have little freedom to move around; this lack of freedom makes the material they form an insulator.
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  • How do photovoltaic cells work?

    Q: How do photovoltaic cells work?

    A: When photovoltaic cells are hit by sunlight, photons are absorbed, electrons are released and capturing those free electrons causes an electric current. Photovoltaic cells create a direct current (DC), which must be transformed into an alternating current (AC) for industry and home use. Photovoltaic systems rely on an inverter to accomplish this conversion.
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  • How does a windmill produce electricity?

    Q: How does a windmill produce electricity?

    A: Windmills produce electricity by electromagnetic induction, the process in which the movement of magnets in a magnetic field generates electricity. In a windmill, when wind moves the blades of the windmill that move the rotor, the rotor rotates a shaft that holds magnets in the magnetic field of the generator, generating alternating current that is sent along power lines.
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  • How is wind power made?

    Q: How is wind power made?

    A: Wind power harnesses the movement of the wind to turn electrical turbines, generating power. Large windmill-like turbines with canted blades catch the wind, rotating around a central axle. This axle connects to the central rotor of an electric turbine. As the turbine spins, the interaction of copper wires and magnets creates an electrical current.
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  • Does lemon juice conduct electricity?

    Q: Does lemon juice conduct electricity?

    A: According to the California Science Center, lemon juice can both conduct and produce electricity. Lemon juice contains citric acid, which is a strong electrolyte. The electrolytes in lemon produce electricity by allowing two metals to react with each other.
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  • How is electrostatic force explained?

    Q: How is electrostatic force explained?

    A: Electrostatic force, which is also called the Coulomb force or Coulomb interaction, is defined as the attraction or repulsion of different particles and materials based on their electrical charges. Electrostatic force is one of the most basic forms of forces used in the physical sciences, and was discovered by a French physicist named Charles-Augustin de Coulomb in the 1700s. Coulomb discovered electrostatic force after undertaking an experiment, and used the concept of electrostatic force to describe the interaction of particles and molecules in a given space.
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  • How is physics related to technology?

    Q: How is physics related to technology?

    A: Every kind of technology makes use of principles articulated by the scientific discipline of physics. Even very simple technology, such as the wheel or the lever, have actions that can be described in terms of basic forces and matter interactions.
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  • Why do longer wires have more resistance?

    Q: Why do longer wires have more resistance?

    A: Resistance occurs when the electrons carrying an electrical charge collide with the atoms of a wire and are impeded. A longer wire provides more opportunities for collisions, which in turn creates greater resistance.
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  • What are basic electronics?

    Q: What are basic electronics?

    A: Basic electronics are capacitors, resistors, diodes, transistors, integrated circuits, potentiometers, LEDs, switches, batteries, breadboards and wire. Together, one can use these components to create a host of electronic devices by manipulating electricity.
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  • What is the definition of electricity?

    Q: What is the definition of electricity?

    A: Electricity is defined as a type of energy that involves the flow of electrons, according to the Merriam-Webster dictionary. Electricity occurs when an atom gains or loses an electron.
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  • How does a laser diode work?

    Q: How does a laser diode work?

    A: A laser diode works by having a p-n junction that is powered by the injection of electric current. The active medium for these lasers is a semiconductor similar to what is found in light-emitting diodes.
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