Photosynthesis - Wikipedia
WEB21 timer siden · Photosynthesis ( / ˌfoʊtəˈsɪnθəsɪs / FOH-tə-SINTH-ə-sis) [1] is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, …
Sun - Wikipedia
WEB21 timer siden · Sun. The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, [18] [19] heated to incandescence by nuclear fusion reactions in its core, radiating the …
Renewable energy - Wikipedia
WEB21 timer siden · Renewable energy (or green energy) is energy from renewable natural resources that are replenished on a human timescale.The most widely used renewable …
Energy transition - Wikipedia
WEB21 timer siden · Definition. An energy transition is a broad shift in technologies and behaviours that are needed to replace one source of energy with another.: 202–203 A …
- Anslået læsetid: 10 min
High-speed rail - Wikipedia
WEB21 timer siden · High-speed rail (HSR) is a type of rail transport network utilizing trains that run significantly faster than those of traditional rail, using an integrated system of specialized rolling stock and dedicated …
Fourier series - Wikipedia
WEB21 timer siden · A Fourier series (/ ˈ f ʊr i eɪ,-i ər /) is an expansion of a periodic function into a sum of trigonometric functions.The Fourier series is an example of a trigonometric series, but not all trigonometric series are …
Denmark - Wikipedia
WEB21 timer siden · Denmark has flat, arable land, sandy coasts, low elevations, and a temperate climate. It had a population of 5,964,059 (1 December 2023), of whom 800,000 live in Copenhagen (2 million in the …
Gå til indholdet