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電磁波

22 件の記事

The 100-inch (2.5 m) Hooker reflecting telescope at Mount Wilson Observatory near Los Angeles, used by Edwin Hubble to measure galaxy redshifts and discover the general expansion of the universe.

望遠鏡の進化と多様性光からガンマ線まで捉える宇宙の眼

望遠鏡天文学屈折望遠鏡反射望遠鏡
A ray of light being refracted in a plastic block

屈折の仕組み光や波が曲がる物理現象の全貌

屈折スネルの法則屈折率分散
Ionizing radiation warning symbol

電離放射線とは?その性質から人体への影響、日常生活での曝露までを解説

電離放射線電磁波アルファ線ベータ線
Change of wavelength caused by motion of the source

ドップラー効果の仕組みと現代社会への応用

ドップラー効果周波数赤方偏移青方偏移
The Sun, as seen from low Earth orbit overlooking the International Space Station. This sunlight is not filtered by the lower atmosphere, which blocks much of the solar spectrum.

太陽光の科学地球を育むエネルギーの正体と特性

太陽光電磁波可視光線赤外線
Levels of ozone at various altitudes (DU/km) and blocking of different bands of ultraviolet radiation: In essence, all UVC is blocked by diatomic oxygen (100–200 nm) or by ozone (triatomic oxygen) (200–280 nm) in the atmosphere. The ozone layer then blocks most UVB. Meanwhile, UVA is hardly affected by ozone, and most of it reaches the ground. UVA makes up almost all UV light that penetrates the Earth's atmosphere.

紫外線(UV)の性質と影響科学的メカニズムから実用的な応用まで

紫外線UVAUVBUVC
A false-color image of two people taken in long-wavelength infrared (body-temperature thermal) radiation

赤外線(IR)の基礎知識特性から最先端の活用事例まで

赤外線電磁波サーモグラフィ近赤外線
Experimental radar antenna, US Naval Research Laboratory, Anacostia, D. C., from the late 1930s (photo taken in 1945)

レーダーの仕組みと歴史電波による検知から現代の高度な応用まで

レーダー電波ドップラー効果無線検知
Electromagnetic interactions are responsible for the glowing filaments in this plasma globe.

電磁気学の基礎から応用まで電気と磁気の相互作用を解き明かす

電磁気学マクスウェル方程式静電気磁場
United States Space Force personnel operating a satellite antenna during an electromagnetic warfare military exercise

電子戦(EW)の仕組みと現代戦における戦略的役割

電子戦EW電磁波ジャミング