Repton, Humphry

Japanese: レプトン(英語表記)Repton, Humphry
Repton, Humphry
Born: 21 April 1752, Bury St Edmunds
[Died] March 24, 1818. Rumford. British landscape gardener. After a business failure, he entered the world of landscape gardening at the age of 39, as a hobby. After the death of L. Brown, he created a moderate, picturesque style that was somewhere between L. Brown's pastoral style and the wild, idealistic naturalism that was popular at the time, and called it "landscape gardens." He incorporated architectural elements into his landscape designs, and in particular used rectilinear compositions such as terraces, stairs, and flower beds around buildings, and showed skill in organically combining the garden with the natural scenery. He was involved in over 200 gardens and parks. He also used his watercolor skills to create a sketchbook for clients that showed diagrams of the before and after of the design, called the "Red Book," which became a model for subsequent design documents. From 1796 to 1802, he collaborated with J. Nash. He wrote many books, including Sketches and Hints on Landscape Gardening (1795) and Observations on the Theory and Practice of Landscape Gardening (1803).

Leptons
Lepton

There are three generations and six types of leptons. The first generation is the electron and electron neutrino (e, ν e ), the second generation is the negative muon and muon neutrino (μ - , ν μ ), and the third generation is the negative tau particle and tau neutrino (τ - , ν τ ). These antiparticles are also called leptons. Leptons are fermions with spin 1/2 and baryon number 0. Charged particles only interact weakly apart from electromagnetic interactions, so they are also called weak particles. In weak interactions, e and ν e , μ - and ν μ , and τ - and ν τ act in pairs. The number of each lepton is conserved during the interaction. Parity is not conserved in interactions involving leptons.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
[生]1752.4.21. ベリーセントエドマンズ
[没]1818.3.24. ランフォード
イギリスの造園家。事業の失敗から 39歳で趣味を生かした造園界に入る。 L.ブラウン亡きあと,彼の牧歌的造形と当時流行の荒々しい理想自然派の間をいく,中庸的でピクチャレスクな様式を築き,「風景庭園」と称した。景観デザインのなかに建築的要素を取入れ,特に建物周囲にはテラスや階段,花壇などの直線的構成を用いて,庭園の自然風景との有機的結合に妙をみせた。彼の関与した庭園,公園は 200に及ぶ。また水彩画の特技を生かして設計前後の状態図を示した顧客用スケッチブックは「レッドブック」と呼ばれ,以降の設計図書の範となった。 1796~1802年は J.ナッシュと協力。『風景庭園のヒントと素描』 Sketches and Hints on Landscape Gardening (1795) ,『風景庭園の理論と実際』 Observations on the Theory and Practice of Landscape Gardening (1803) をはじめ著書も多い。

レプトン
lepton

3世代 6種類のレプトンがある。第一世代は電子と電子ニュートリノ (e,νe) ,第二世代は負μ粒子とミューニュートリノ (μ-, νμ) ,第三世代は負 τ粒子とタウニュートリノ (τ-, ντ) であり,これらの反粒子を含めてレプトンと呼ぶ。レプトンはスピン 1/2のフェルミオンでバリオン数は 0である。荷電粒子が電磁相互作用をするほかは,弱い相互作用をするだけであるから弱粒子とも呼ばれる。弱い相互作用では eと νe,μ-と νμ,τ-と ντがそれぞれ組になって作用する。それぞれのレプトン数が相互作用の際に保存される。レプトンが関与する相互作用ではパリティが保存されない。

出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報

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