Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Apparent Weight and the Earth's Rotation01:28

Apparent Weight and the Earth's Rotation

3.6K
Since all objects on the Earth's surface move through a circle every 24 hours, there must be a net centripetal force on each object, directed towards the center of that circle. The points of the north and south poles are the only exception to this rule.
For an object on the Earth's equator, the net centripetal force that accounts for its rotation is the Earth's pull towards its center, or the weight minus the normal force that prevents it from piercing into the Earth's surface....
3.6K
Gravitation01:16

Gravitation

6.5K
In the years before Newton, a general belief prevailed that different laws governed objects in the sky than objects on Earth. When Kepler wrote down the three laws of planetary motion, explaining in detail the geometrical properties of the planetary orbits around the Sun, there was no immediate idea to discern their connection with more fundamental laws. It was Isaac Newton who, in 1665–66, figured out the connection between planetary motion, the motion of the moon around the Earth, and...
6.5K
Angular Momentum and Principle Axes of Inertia01:09

Angular Momentum and Principle Axes of Inertia

243
The concept of angular momentum for a solid structure is illustrated as the cumulative result of the cross-product of the position vector of the mass element and the cross-product of the body's angular velocity with the position vector.
To put this equation into simpler terms, it can be reconfigured using rectangular coordinates. This involves choosing an alternative set of XYZ axes that are arbitrarily inclined with respect to the reference frame. The process of deriving the rectangular...
243
Gravity between Spherical Bodies01:27

Gravity between Spherical Bodies

8.6K
Newton's law of gravitation describes the gravitational force between any two point masses. However, for extended spherical objects like the Earth, the Moon, and other planets, the law holds with an assumption that masses of spherical objects are concentrated at their respective centers.
This assumption can be proved easily by showing that the expression for gravitational potential energy between a hollow sphere of mass (M) and a point mass (m) is the same as it would be for a pair of extended...
8.6K
Tidal Forces01:06

Tidal Forces

2.6K
The origin of Earth's ocean tides has been a subject of continuous investigation for over 2000 years. However, the work of Newton is considered to be the beginning of the proper understanding of the phenomenon. Ocean tides are the result of gravitational tidal forces. These same tidal forces are present in any astronomical body; they are responsible for the internal heat that creates the volcanic activity on Io, one of Jupiter's moons, and the breakup of stars that get too close to...
2.6K
Kepler's First Law of Planetary Motion01:10

Kepler's First Law of Planetary Motion

4.1K
In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. He formulated his first two laws based on the observations of his forebears, Nikolaus Copernicus and Tycho Brahe.
Polish astronomer Nikolaus Copernicus put forth a theory that stated a heliocentric model for the solar system. According to this heliocentric theory, all the planets, including Earth, orbit the Sun in circular orbits.
On the other hand,...
4.1K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Geologic Constraints on the Formation and Evolution of Saturn's Mid-Sized Moons.

Space science reviews·2024
Same author

Fumarolic-like activity on carbonaceous chondrite parent body.

Science advances·2020
Same author

Hypervelocity impacts as a source of deceiving surface signatures on iron-rich asteroids.

Science advances·2019
Same author

Reduced and unstratified crust in CV chondrite parent body.

Nature communications·2017

関連する実験動画

Updated: Jul 31, 2025

Simulation of the Planetary Interior Differentiation Processes in the Laboratory
06:04

Simulation of the Planetary Interior Differentiation Processes in the Laboratory

Published on: November 15, 2013

11.6K

月 の 固い 内核 と マントル の 転覆

Arthur Briaud1, Clément Ganino2, Agnès Fienga3,4

  • 1Université Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Géoazur, Valbonne, France. briaud@geoazur.unice.fr.

Nature
|May 3, 2023
PubMed
まとめ

科学者は月の固い内核と 地球マントルの転覆の証拠を発見しました この発見は,月の初期の歴史と進化の洞察を与えてくれます.

さらに関連する動画

Metal-silicate Partitioning at High Pressure and Temperature: Experimental Methods and a Protocol to Suppress Highly Siderophile Element Inclusions
11:50

Metal-silicate Partitioning at High Pressure and Temperature: Experimental Methods and a Protocol to Suppress Highly Siderophile Element Inclusions

Published on: June 13, 2015

12.6K
Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
06:14

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

Published on: July 30, 2020

5.0K

関連する実験動画

Last Updated: Jul 31, 2025

Simulation of the Planetary Interior Differentiation Processes in the Laboratory
06:04

Simulation of the Planetary Interior Differentiation Processes in the Laboratory

Published on: November 15, 2013

11.6K
Metal-silicate Partitioning at High Pressure and Temperature: Experimental Methods and a Protocol to Suppress Highly Siderophile Element Inclusions
11:50

Metal-silicate Partitioning at High Pressure and Temperature: Experimental Methods and a Protocol to Suppress Highly Siderophile Element Inclusions

Published on: June 13, 2015

12.6K
Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
06:14

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

Published on: July 30, 2020

5.0K

科学分野:

  • * 惑星科学
  • * 地理学
  • * 地震学

背景:

  • * アポロの地震データは,月面の内部構造を明らかにし,核-マントルの境界で地震波の速度が低下することを指摘しました.
  • * 過去の研究では 固い月の内核を確認したり 月のマントルの転覆を完全に理解する解像度が欠けていました
  • *月の内部動力学と初期の歴史は,科学的な議論のテーマです.

研究 の 目的:

  • 月の内部構造,特に内核の存在とマントルの転覆シナリオを調査する.
  • * 月の内部モデルのための熱力学的制約と地質学的データを調和させる.
  • * 月の形成と初期の進化についてより明確な理解を提供するために.

主な方法:

  • *地質学的および地質学的制約を組み合わせた
  • * モンテカルロ探査と熱力学シミュレーションを様々な月の内部構造に活用した.
  • * 熱力学および潮変形データから得られた地震波の速度と密度を分析した.

主要な成果:

  • * 低粘度でイルメニットに富んだゾーンと,熱力学および潮変形密度の制約に適合する内核を持つモデルを特定した.
  • 月のマントルの転覆シナリオを支持する強力な証拠を示した.
  • *半径258 ± 40kmと密度7,822 ± 1,615kg/m3の月の内核の存在を確認しました.

結論:

  • * この研究は,地球全体の月のマントルの転覆の強い兆候を提供します.
  • 月の内核の存在が実証され,月の磁場進化の理解に影響を与えます.
  • この発見は 太陽系の最初の10億年の月の爆撃の時間軸に 重要な洞察を与えてくれます