Physics

Are atomic bombs ethical? This article debates the morality and ethical principles that surround the controversy about nuclear weapons.

In every theory, certain tools are indispensable. Chaos theory is no different, and without phase portraits or phase space we would be dead in the water.

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.

Is it possible to travel through time? Perhaps it will be in the future, but a lot of technological hurdles must be overcome before time travel can become a real possibility.

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.

Mechanics is a branch of physics which deals with forces, mass and motion with applications in engineering construction, the design of machines, ballistics and space travel.

Galileo not only spotted new objects in the sky but also laid the groundwork for advancements in physics. What were they?

So many different versions to consider. Will you be the one to come up with a new solution?

Complicated? Yes. Possible to understand? For sure. Surprising results? Of course! The road to chaos is mapped here.

While it may ultimately prove to be wrong, scientists know of several ways to test for string theory using many conventions of physics.

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.

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.

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.

Every scientific road needs applications. Chaos is no different, and some led to further insights into the discipline. Here are a few of them...

Sounds made up, doesn't it? But in reality, it could be a missing key to physics.

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.