Articles related to "Magnetic Fields"

Lenz's law, giving the direction of induced electromagnetic fields, is a consequence of the law of conservation of energy.

Scientists indirectly deduce the interior structure and composition of Earth and other planets using the density, seismic waves, and the magnetic field.

Ampere's Law allows physicists to determine the magnitude and direction of the magnetic field induced by an electric current.

Visible, ultraviolet, and infrared light as well as X-rays and all types of radio waves are types of electromagnetic waves or electromagnetic radiation.

Why is it when a magnet is moved in the direction of a copper wire coil, a current can then be measured in the coil?

An electric current creates a curling magnetic field. When placed in an external field, a force acts on the wire. This magnetic force is what drives the electric motor.

During a class, Oersted noticed that a compass near a wire carrying electricity was affected by the current induced magnetic field.

A changing magnetic field will induce an electric current and corresponding electric potential difference according to Faraday's Law of electromagnetic induction.

What is the electromagnetic spectrum? It consists of all types of electromagnetic waves, including radio waves, X & gamma rays, & visible, ultraviolet, & infrared light.

Magnets are fascinating objects for anyone ranging from the child to the engineer. They can be a source of fun and we can also probe and quantify their curious properties

Nuclear magnetic resonance imaging provides safe nonintrusive medical diagnostic images of the interior of the human body. How does MRI work?

A fun physics science lab for kids that uses magnets to illustrate Faraday's law and Lenz's law via a magnetic brake effect.

Density is one of the tools scientists use to indirectly deduce the interior structure and composition of Earth and other planets.

An enclosed metal shell acting as a Faraday cage can offer protection from lightning and other electrical effects.

Scientists indirectly deduce the interior structure and composition of Earth and other planets using the density, seismic waves, and the magnetic field.

Basic facts and new discoveries about the solar system's smallest planet.

The Magnetic Fields' latest album attempts to answer the age old question: What happens to a lover scorned when they pick up an electric guitar?

Nuclear magnetic resonance, a resonance of the nucleus of atoms in magnetic fields, is the fundamental physics behind Magnetic Resonance Imaging and NMR spectroscopy.

A Faraday cage is an enclosed conducting shell that shields its interior from strong electric fields and electromagnetic waves.

The Aurora, often called the northern or southern lights, are caused by interactions between Earth's upper atmosphere and charged particles from the Sun.

The direction of north and south we take for granted, but magnetic north and south have switched places in the past and may do so again in the near future.

Research uncovers clues to how migrating birds accurately navigate thousands of miles each year. Observing the sun each evening may be the surprising key to their skill.

Gregg Braden's latest book covers not only the prophecies of ancient cultures, but also what present day science shares about the changes 2012 is instigating.

Today we discuss what happens when the magnet on a distributor shaft cracks and help a person that has a 1990 Chevy Beretta with an A/C compressor clutch problem.

Maxwell's equations synthesized physicists' understanding of electrodynamics and predicted the existence of electromagnetic waves.

Mariner 10, the seventh successful mission of the Mariner series in the 1970's encountered both Venus and Mercury and led to several key planetary discoveries.

Why is microwave heating of food often uneven so that one bite is scalding while the next is still frozen?

Faculae are bright regions on the Sun's photosphere affecting solar energy output. Changes in the number of faculae and sunspots may play a role in global climate change.

Microwave ovens cook food by agitating water molecules

According to theories based on ancient Mayan predictions, the world is supposed to end December 21, 2012. This article will prove the Mayan 2012 prophecy to be unfounded.

First conceived around 1907, Mag-lev did not become a practical reality until 1984. But, the age of the mag-lev rail is coming soon.

In this interview, Coraline author Neil Gaiman talks about new characters in Henry Selick's film and his opinion on the book's many adaptations.

Despite the stormy debates that preceded his speech at Notre Dame University, President Obama has turned the occasion into a strong call for global coherence.

A transformer is a machine simple in design, but sublime in its simplicity.

Wind, solar, geothermal, and hydroelectric power are renewable alternatives to fossil fuels, but must be used in combination to equal the energy output of fossil fuels.

Ascension is the process that accompanies man's shift in consciousness from the 3rd dimension of tangible reality to the 5th dimension of multidimensional wholeness.

Your auto repair questions answered about a 1994 Chevy Silverado with a charging system problem.

The built-in electronic compasses available on some digital watches look cool, but how accurate and reliable are they?

An American company has demonstrated a device that allows people to operate electrical appliances without a wire connection.

How do microwave ovens cook food? How is the energy of the microwaves converted to heat energy in our meals? How does microwave heating work?

Navigators and map makers have been using compasses for centuries. Here's a quick and easy way to make a compass of your own with everyday household materials.

Mayans were very accurate about astronomy & measurements. Last day on the Mayan calender is December 21, 2012. Does this mean end of the world or beginning of a new age?

Induction stoves use less electricity than hot plates and are as responsive as gas stoves. But are they suitable for everyone?

Once older workers hit 50, they often lose the ability to sleep deeply, suffering also from worry that no sleep will come even though they may still have to get up early.

Shortly after the CERN Large Hadron Collider accelerated its first protons, an accidental liquid He leak caused some magnets to warm up and necessitated repairs.

Mass spectrometry is a factual, basic primer for ionic studies. The Nobel-Prize-winning "mass spec" can identify atoms and molecules with great specificity and accuracy.

Are cats intelligent? Cats meet many of the criteria for intelligence, including curiosity, creative problem solving, remembering, and communicating.

Exploding stars that spew light-speed particles in their death throes had major impact on early life on Earth and still plays a role in its climate, says a Danish report.

Sea turtles have a remarkable ability to use a "compass sense" to help them find their way to regular feeding and nesting areas.

This article will attempt to establish the validity of astrological interpretation through scientific explanation.