6 天之前 · The Physics page features the latest news in materials science, quantum physics, particle physics, and more.

2025年9月11日 · Join Physics Forums, where students, scientists, and enthusiasts come together to explore and discuss the current understanding and practice of various scientific fields.

2025年5月22日 · Scientists suggest the missile defense plan will face big hurdles, especially given its projected timeline and cost.

2005年11月4日 · The discussion clarifies that "i, j, k" are unit vectors representing the x, y, and z axes in vector notation, providing a standard way to express vectors without angles. The dot …

2010年4月22日 · The equation v = √ {2gh} is significant in physics as it relates to kinetic energy per mass and appears in various contexts, including escape velocity and conservation of …

2025年8月27日 · Here contains the collection of expert physics articles that deal with physics topics. These span all skill ranges and may include astronomy and cosmology topics.

2015年5月14日 · Most physics majors will go on to graduate school and then obtaining their doctorate. Herewe start the application process of going to graduate school.

2025年9月2日 · Physics Forums expert math and physics blog. Read and learn from expert math and science articles, tutorials, and guides. Test your science knowledge with our quiz.

2011年9月26日 · Uppercase delta (Δ) represents the difference between two values, such as in the expression 10Δ5=5, while Δx specifically denotes the change in the variable x between …

2025年1月26日 · In physics, tensors are often a mixture of several vector spaces and several dual spaces. It also makes sense to sort both kinds as the tensor product isn’t commutative. …