Particle counting and concentration measurement complement size distribution data to provide a fuller view of particle populations.

Download MP Board Class 12 Physics Model Paper 2026 PDF and check exam pattern, marking scheme, important MCQs, fill in the blanks, and last-minute preparation tips for the Physics board exam 2026.

The internet has always thrived on stupid questions. Despite decades of asking them in online forums, on social media and to search engines, humans still seem to have an infinite supply of these ...

When last we saw [xoreaxeax], he had built a lens-less optical microscope that deduced the structure of a sample by recording the diffraction patterns formed by shining a laser beam through it. At the ...

First experimental observation of matter-wave diffraction in a short-lived electron-positron atom using a graphene-based diffraction grating. (Nanowerk News) One of the discoveries that fundamentally ...

Add Yahoo as a preferred source to see more of our stories on Google. Getty Images If you had a reputation for being a know-it-all as a kid, you’re likely now the person with a trusted list of trivia ...

There is certainly some irony in one of the questions most commonly posed to Alexa this year: “What does AI mean?” Amazon’s Artificial Intelligence (AI) assistant has become a regular feature in 21st ...

A pulse of light sets the tempo in the material. Atoms in a crystalline sheet just a few atoms thick begin to move—not randomly, but in a coordinated rhythm, twisting and untwisting in sync like ...

(NEXSTAR) — As part of a “multi-step overhaul” of the naturalization process, the U.S. Citizenship and Immigration Services announced Wednesday that it is expanding and altering its Naturalization ...

(a) Working principle of metasurface displacement measurement can be understood as the detection of the power of different modes of the converted light. The incident irradiated on the metasurface and ...