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Intermolecular Forces03:13

Intermolecular Forces

Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
Intermolecular Forces03:13

Intermolecular Forces

Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
Acceleration due to Gravity on Other Planets01:24

Acceleration due to Gravity on Other Planets

The gravitational acceleration of an object near the Earth's surface is called the acceleration due to gravity. It can be measured by conducting simple experiments on Earth. However, such an experiment is impossible to conduct on the surface of other planets.
Astronomical observations are thus used to measure the acceleration due to gravity on other planets. This can be determined by observing the effect of a planet's gravity on objects close to it. The crucial factor that helps in this...
Escape Velocities of Gases01:19

Escape Velocities of Gases

To escape the Earth's gravity, an object near the top of the atmosphere at an altitude of 100 km must travel away from Earth at 11.1 km/s. This speed is called the escape velocity. The temperature at which gas molecules attain the rms speed, which is equal to the escape velocity, can be estimated by using the equation for the average kinetic energy of the gas molecules. According to the kinetic theory of gas, the average kinetic energy of the gas molecules is proportional to its temperature.
Variation of Atmospheric Pressure01:18

Variation of Atmospheric Pressure

Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
Planes in Space01:31

Planes in Space

A plane in three-dimensional space is fundamentally characterized by a point that lies on the plane and a normal vector that is perpendicular to its surface. This normal vector uniquely determines the orientation of the plane, making it an essential geometric descriptor. In architectural applications, such as the installation of a sloped glass panel on a building façade, this mathematical model provides a precise representation of the panel’s position and orientation in space.Let r₀ be the...

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関連する実験動画

Updated: Jul 9, 2026

Bringing the Visible Universe into Focus with Robo-AO
10:35

Bringing the Visible Universe into Focus with Robo-AO

Published on: February 12, 2013

木星上の激しい平流のジェット.

F M Flasar1, V G Kunde, R K Achterberg

  • 1NASA/Goddard Space Flight Center, Code 693, Greenbelt, Maryland 20771, USA. f.m.flasar@nasa.gov

Nature
|January 9, 2004
PubMed
まとめ

木星,木星,木星,木星,木星,木星,木星,木星,木星,木星,木星,木星,木星,木星,木星

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An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation

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Last Updated: Jul 9, 2026

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Published on: February 12, 2013

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08:36

An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation

Published on: November 3, 2016

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科学分野:

  • 惑星科学は惑星科学である.
  • 大気科学 大気科学
  • 航空宇宙工学は,航空宇宙工学である.

背景:

  • 地球のストラトスフィアは,地球天候に影響を与える準二年振動 (QBO) を表しています.
  • 木星の平流層は,同様の温度振動があるかもしれないが,データは限られている.
  • 過去の木星の研究では,垂直解像度や風速のデータが欠けていました.

研究 の 目的:

  • 木星の平流圏の気温と風を高空間解像度でマッピングする.
  • 木星の大気振動を調査する.
  • 木星の大気動態と地球のQBOを比較する.

主な方法:

  • 木星の平流圏からの赤外線スペクトルの宇宙船の測定.
  • 気温と風速のデータを分析する.
  • 大気現象の高解像度空間マッピング.

主要な成果:

  • 激しい高空赤道ジェットの発見 (約. 140 m/s) である.
  • 赤道ジェットの構造における準四年毎の振動の特定.
  • 地球に類似した平流層の波動活動の観測.
  • 極地熱点の平流圏への浸透のマッピング.

結論:

  • 木星の平流圏は,地球のQBOに似た振動と波の活動を含む複雑なダイナミクスを示しています.
  • 高解像度のデータは,詳細な大気ジェット構造と相互作用を明らかにします.
  • プラズマ環境は木星の上層大気と平流圏に大きな影響を与える.