Here’s what you’ll learn when you read this story: We only have three photos of Taylor Swift’s engagement ring so far—and only one close-up—but it already looks different from photo to photo.

Gross margin measures the percentage of revenue after direct costs are subtracted. Calculating gross margin involves subtracting COGS from revenue and dividing by total revenue. High gross margin ...

Calculate dividends by subtracting year-end retained earnings from start-year retained earnings, then net income. Dividend payout ratio (DPR) is found by dividing total dividends by net income to ...

A research team led by Academician Zhu Jiaojun from the Institute of Applied Ecology (IAE) of the Chinese Academy of Sciences ...

An expert discusses how she managed an unusual case of a patient with high myopia with angle closure and elevated intraocular ...

Experts from the International Solar Energy Society explains how regional spectral shifts of the standard spectral distribution of sunlight bring new insights into the performance of bifacial ...

A rectangle has two pairs of equal sides. It has four right angles (90°). The opposite sides are parallel. The diagonals bisect each other. A parallelogram has two pairs of equal sides. It has two ...

Understanding diffraction and dispersion is key to optical science, influencing technologies like spectroscopy, fiber optics, ...

Spectroscopy, the study of light-matter interactions, is vital for understanding molecular properties and advancing ...

Abstract: In this letter, we propose a novel methodology for retrieving wave parameters, i.e., significant wave height and mean wave period, in near-nadir looking mode using a 77-GHz ...