According to current physics, equal amounts of matter and antimatter should have been created during the Big Bang, but yet it was not. No one knows for sure why, but many theories exist to explain it.
One of the most important theories in physics is Albert Einstein's theory of special relativity. The theory of special relativity (and its equations) explained how space and time are actually intrinsically linked to each other, instead of being two separate concepts.
Students usually make unnecessary mistakes in their examinations that cost them precious marks. These are some of the common errors they make in their electricity and magnetism exams.
Nanotechnology is not a complicated notion, but it sure can sound fancy. If you've heard about it but you'd like to learn a little more, here's a quick primer on nanotech.
A magnet is an object that has a magnetic field strong enough to influence other materials. The molecules in a magnet are aligned to all face one way, which gives the magnet its magnetic field. Sometimes the molecules can align permanently, making a...
A neutrino is a unique type of subatomic particle that is more mysterious than the other more well known particles. How were they discovered and what are their possible uses in the future?
TRIUMF is a facility for research in particle physics and accelerator-based science. It contains the largest cyclotron in the world and produces medical isotopes. It's located in Vancouver, British Columbia.
Part of an overview of the physics and mathematics pertaining to naturally occurring constants. Natural constants pertaining to Vacuum permeability and permittivity.
Though something we cannot hold in our hands, we may feel time slip away. But what is it? And after all is done, do we want to know?
A detailed overview on the working of magnets whether you're looking for examination help, project guidance or knowledge to satisfy your curious mind.
Such a small difference can make a huge impact on physics. The neutron has done that, and a resolution to this problem isn't going to be easy to find.
Why does time only go forward? Is there some kind of gravity that relates to time? The gravity of time, or time gravity, is my theory that affects the direction of time—keeping it going only in one direction.
Involving many principles of science, this particular paradox follows a consequence of black hole mechanics and has far-reaching implications, no matter what the solution is.
X-rays are a great tool for science, and so are lasers. So combine them and what do you got? Some awesome physics.
The matter around you is composed of atoms but if we delve deeper we can find subatomic parts made of quarks and gluons. But they don't work according to our current understanding of physics.
The relationship between temperature and volume is described by one of the pieces of the ideal gas law, also called Charles's law.
A description of the historic oil drop experiment that was performed by Robert Millikan to determine the electrical charge of the electron. Included is a diagram of the apparatus used and a discussion of the forces acting on the oil droplets.
The first calipers were seen in China and were used for not only measurements but as a directional compass for ships at sea. This hub provides a list of different calipers and how they are used.
Galileo not only spotted new objects in the sky but also laid the groundwork for advancements in physics. What were they?
We all know the pull of gravity that the Earth exerts on us. What we may not realize are the unforeseen consequences that range from our everyday lives to some strange hypothetical scenarios.
Gamma Ray Spectroscopy - An introductory review of germanium gamma ray detectors, and the spectroscopic methods used in the measurement of x-ray escape peaks, annihilation photons, peak summing, energy resolution, and total and photopeak efficiency.
Are atomic bombs ethical? This article debates the morality and ethical principles that surround the controversy about nuclear weapons.
The year 1905 is referred to as Albert Einstein's annus mirabilis (miracle year). Over the course of a year Einstein published four groundbreaking papers in physics. In doing this he announced his genius to the world and began his career as one of the world's most respected scientists.
Physics aims to give elegant explanations for the phenomena observed within in our universe. These explanations are encoded in the mathematical language of equations. What are the most important and beautiful equations in physics?
Time is a real component of physical reality, non-spatial and immaterial. It's a core dimension of the universe, underlying change and causation. Time is unique and indispensable, embedded in everyday experience and science's conceptualization of the universe.
These particles are a huge component of modern particle physics, but boy are they a pain to comprehend!
Scientists have their own way to talk about black holes. Want to expand your ability to do just that? Read on to find out how...
In this article, we'll look at the derivation of Albert Einsteins famous equation E = MC2 show how you can come up with it using simple algebra and Pythagorean's Theorem.
With billions of galaxies in the universe that may have the potential for Earth-like planets in their solar systems, the chance of intelligent life elsewhere must exist. But there are reasons why we may never find it.
Sound is a physical and psychological experience. If the brain goes without stimuli, it will produce its own in the form of hallucinations. Even deaf people experience tinnitus, but is this technically sound. This article defines sound and examines what an experience of true silence might be like.
High rupturing capacity (HRC) fuses are totally enclosed fuses with definite known- high breaking capacity which have been developed after intensive research by manufacturers and supply engineers.
While it may ultimately prove to be wrong, scientists know of several ways to test for string theory using many conventions of physics.
All boundaries reveal new phenomenon and these are no exception. Learn the odd physics of neutron stars, pulsars, and magnetars.
A basic easy learning and revision guide to chaos theory. I’ve tried to make this article easy to follow by using my own learning techniques i.e. very simple and without repetition.
While we don't know if they exist, the physics of tachyons would bring much excitement to science. But what are they?
When asked why the sky is blue, most people are able to come up with a vague statement about some gas called ozone being blue. The real answer, however, is much more interesting.
Often considered a different state of matter, the BEC reveals many interesting physics of the bizarre.
What are Decibel levels and why are they so important? How can you measure them and when are they too "loud"?
Though it works great on the quantum level, we have yet to see this work on the macro level. Is gravity the key to solving this mystery?
The mathematical notion of "nothing" is actually quite enormous. There is more emptiness in the universe than there is physical substance. Follow along with me as I clarify this concept.
A summary of the Franck-Hertz experiment and how it helped to demonstrate the early quantum theory. Explanations are given for the apparatus used and the graphs that are obtained from the experiment.
Often a headache, time paradoxes are hard to fully delve into. Lets try and take a look at a few of them and see what we can learn from them.
Learn how you can accomplish the various methods of interconnecting batteries, to make them suitable for your DC powered loads.
Nuclear power plants are based around the energy produced by nuclear fission. What is nuclear fission and what are the components within a reactor that enable and control the unstable fission process?
Dark matter and dark energy are still huge mysteries in astrophysics. Alternate theories exist to help explain them.
The physics of a waterfall are curious. The second law of thermodynamics says that things tend toward a more disordered state. Is the second law saying that destruction (erosion) wins over creation?
Exploring the incorrect theories of lift and describing what really happens to an aeroplane wing in the air...
Quantum Mechanics is quite intimidating but also very intriguing. However, the whole quantum theory stands on the shoulders of Heisenberg's Uncertainty Principle. Let's see its perilous existence and the need of Heisenberg's Uncertainty Principle.
Students have an excellent chance of doing well on a physics exam if they work efficiently throughout the physics course and follow some tips for writing exams.
You are walking down the road when, "eek!" you fall into a huge pool of quicksand. There is nobody near enough to hear your cries for help. How will you escape? Can you really drown in quicksand? How can your practice escaping from quicksand from the safety of your own home? This recipe for Cornstarch Quicksand is very similar to the real thing, it is easy to make, and it even lets you walk on water.
More than half of PhD students leave physics after earning their degree. The reasons include a lack of financial reward or job security.
There are three main types of nuclear radiation. What causes this radiation to be produced? What are the dangers and uses of nuclear radiation?
The standard model is a particle physics theory that tries to describe the fundamental building blocks of our universe. It does this by categorising the different types of elementary subatomic particles and the forces that can occur between them.
Free physics problems help online with solutions on average velocity and average speed that walk you through each problem.
Like many aspects of particle physics, electrons offer their own unique problems. Here is a sampling of some of the most interesting ones.
A short explanation of the protocol for quantum teleportation. Quantum teleportation is a quantum computing technique that allows qubits to be sent over large distances.
Cosmological mysteries are numerous, incredible in size, and the possible explanations for them are just as bountiful. Let's explore the supervoid, one of those mysteries, and see what it could be...
What started as a simple verification of a long standing value in particle physics may hint at new possibilities unknown to scientists at this time.
Speed can be measured in many different ways and the instruments used to measure speed vary with the job.
Galileo, the great prototype for all scientists, made many discoveries in physics and astronomy. But whose work did he build off of?
Quantum computing is a new type of computation based upon the physics of quantum mechanics. What are the basic principles that are utilised by a quantum computer? Can we actually build a quantum computer and what could it used for in the future?
This space observatory got its roots in a hidden frontier of light, and now continues to make advances into the x-ray world.
Amazingly, under the right conditions a group of atoms can behave like an individual atom and become a superatom.
Why are high energy particle accelerators, such as the LHC at CERN, required to study modern particle physics? What are the different types of particle accelerator? Do particle accelerators have other benefits to society outside of scientific research?
Already a complicated subject, black holes get even weirder when viewed through the lens of string theory. Read on for some odd possibilities for what black holes really are.
While we all enjoy a good bowl of popcorn, few know of the mechanics that cause popcorn to form in the first place.
Often thought of as impenetrably difficult and complex, Physics explains the inner workings of the Universe...and your wireless network...and boomerangs...and electricity. This hub looks at ten of the best questions asked of me this year.