Articles related to "Photons"

Electrons can emit or absorb only specific amounts of energy to change orbitals and this energy change usually takes place via photons of light.

A static isolated black hole has an event horizon or Schwarzschild radius surrounded by a photon sphere.

Satyendra Bose and Albert Einstein published a paper in 1924 which to this day helps to explain the difference between various types of subatomic particles.

In addition to his work on relativity in 1905, Einstein published an explanation for the photoelectric effect that earned him the 1921 Nobel Prize.

Gamma ray bursters are among the most violent phenomena in the visible universe. In fact, if one occurred near the Earth it would incinerate the atmosphere in seconds. Fi

Many people have a general idea of what electron microscopy is but why would someone ever choose to use a scanning electron microscope?

All living things use and produce light, which appears to be key to health. Light energy may transmit information critical to the proper functioning of the organism.

LASER has become a common household word, but what does it mean?

Bosons, along with fermions and leptons complete the 'zoo' of elementary particles.

Like sharks in the ocean millions of Black Holes wander the universe. And like those creatures the universe needs these galactic wanders to maintain stability.

The Bohr model of the atom was a major leap forward in our understanding of atomic structure and quantum mechanics, but it was not the final answer.

Bohr's atomic model explains how electrons jumping between orbits in atoms cause emission and absorption line spectra and why each element has its own spectral signature.

Solar power is the ultimate renewable energy source. Here is an introduction to the basic science that makes all solar energy technologies possible.

Several scientific tests show the Big Bang Theory provides a true vision of the Origin of the Universe to within 1/100 of a second after The Bang

Barack Obama's designated energy secretary shared the 1997 Nobel prize in physics. What is the science behind Chu's Nobel prize in physics?

Light and all types of subatomic elementary particle show properties of both waves and particles.

As part of his "Miracle Year" in 1905, Albert Einstein gave the new "quantum" ideas a jump start with his solution to a nineteenth century problem.

Quantum physics is recognized by many as one of the most difficult concepts in science. While this is surely true, it is not entirely beyond the grasp of the layman.

In the all-important world of code making and breaking, perhaps the greatest hope comes from the world of quantum physics.

The study of laser technology involves the study of principles of light energy in physics.

Even though reflection and refraction of light are important concepts in optics, they are often confused. The two concepts are unraveled here.

It's still possible to find a gift without breaking the bank.

Spiritual practices and mysticism apply natural power and psychic perception for useful causes.

The Totalitarian Principle declares that anything which is not forbidden by any specific rule of physics, is required by law to occur, with no exceptions.

Jupiter 9 Productions announced the final voice cast for Quantum Quest, a CGI animated film produced with NASA's JPL unit. Movie comes to theatres in September.

The photoelectric effect can be harnessed to create energy from sunlight using photovoltaic cells.

"We are made of star stuff...atoms heavier than hydrogen were created in the interiors of stars and then expelled into space to be incorporated into later stars."

NASA's orbital observatory program contained four Telescopes to observe different electromagnetic frequencies. The Compton observatory looked for gamma-rays.

The four known natural forces are, from strongest to weakest: strong nuclear, electromagnetic, weak nuclear, and gravity. Without forces structure could not exist.

The Higgs boson, aka the god particle, which physicists hope to detect with the new LHC, is the holy grail of modern particle physics. What are bosons and fermions?

Paul L. Appleton managed to take a 'close-up' photo of the colon of a mouse, and for this achievement he won a prize on September 21st in New York.

In 1932, James Chadwick proved that the atomic nucleus contained a neutral particle which had been proposed more than a decade earlier by Ernest Rutherford.

Physics is a discipline of science that includes many interrelated and active branches.

The discovery of the positron paved the way for further realization that every particle known must also have an "anti" particle.

How do radiation detectors work? And how does Homeland Security use them at the borders to prevent nuclear materials from being used in weapons of mass destruction?

In 1900, Max Planck announced a solution to the black-body problem, and in doing so set physics on a revolutionary new path altogether.

Biocentrism is a recent and highly controversial theory that proposes the existence of the universe is dependent upon the presence of life within that universe.

Microwave ovens cook food by agitating water molecules

Discrete mathematics, most commonly finding applications in computer sciences, are used to define groups of numbers which are finite, or "countable."

Sailing between the planets using the light provided from the sun may become a valid method of space craft propulsion in the near future

How the differences in what the left and right eye see, and how the nerves of the eye work to allow humans to distinguish color, 3D and distance.

Understanding how physics developed in the past helps us understand where it may be going in the future, but it also sheds insight on how we perceive the natural world.

When an object with mass moves at a speed approaching the speed of light, it's inherent properties are changed in surprising ways.

The most important call for mankind may be coming soon, from a developed extra-terrestrial civilization. SETI@home may take the call.

Most people are familiar with the three states of matter they commonly interact with, solid, liquid, and gas, but these are hardly the only states of matter.

NOAA space weather forecasters have observed the first sunspot of Solar Cycle 24. Solar storms can adversely affect power, radio communication and navigation systems

The Martian sky is a pinkish yellowish color completely different from Earth's blue sky because of airborne iron oxide dust grains.

It seems that aliens want to talk to humans just as humans want to talk to them. Instrumental Transcommunication can be a great tool to make contact.

Fiber optic telecommunication systems carry huge amounts of bandwidth to homes and offices, using ultra-fast pulses of light sent through thread-like glass fibers.

Environmentally-minded travellers keen to adopt a more sustainable approach to travel will find these eco-friendly gadgets worth packing.