Double means two lots of something. There are two ways to double numbers. You can add the number to itself to get a double. You can also multiply a number by 2 to get a double. When you double a ...

Why do coins have different values? Coins have different values so you can buy items that cost different amounts. The value of the coin is how much it is worth. You also need different value coins so ...

AI-generated summary reviewed by our newsroom. Read our AI Policy. DPI released draft K-12 math standards proposed to replace required Math 3. Students would keep Math 1 and Math 2, then choose two ...

Kinesin-1 is a dynamic heterotetrameric assembly of two heavy and two light chains (KHC and KLC) that mediates microtubule-based intracellular transport of many different cargoes. The complex adopts a ...

A University of California San Diego report warns that roughly one in eight incoming college students can’t meet middle school math standards. It found that the number of students needing to take ...

THIS book is based upon a course of lectures given by the author at Cambridge during the Lent term of 1932. The introduction contains a condensed but useful account of Lebesgue integration, leading to ...

Rybicki, M. (2025) Black Hole as a Topological Hole in the Fabric of Spacetime. Journal of Modern Physics, 16, 1799-1817. doi ...

What began with a focus on weather forecasting has evolved toward addressing errors in scientific modeling. In the collaborative environment of the Penn State Institute for Computational and Data ...

2. Fourier series analysis of the nonlinear pendulum motion Before we address the problem in hand, for completeness, we introduce the basic ideas involved. Mathematically, the solution of Eq. (2) that ...

An Integral Field Unit (IFU) based on image slicers has been added to the GREGOR Infrared Spectrograph (GRIS). This upgrade to the instrument makes possible 2D spectropolarimetry in the near-infrared ...