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

Buoyancy00:59

Buoyancy

12.0K
When an object is placed in a fluid, it either floats or sinks. All objects in a fluid experience a buoyant force. For example, a metal ball sinks, while a rubber ball floats. Similarly, a submarine can sink and float by adjusting its buoyancy.  The concept of buoyancy raises several interesting questions. For instance, where does this buoyant force come from? How much buoyant force is required to make an object sink or float? Do objects that sink get any support at all from the...
12.0K
Density and Archimedes' Principle01:05

Density and Archimedes' Principle

8.2K
When a lump of clay is dropped into water, it sinks. But if the same lump of clay is molded into the shape of a boat, it starts to float. Because of its shape, the clay boat displaces more water than the lump and experiences a greater buoyant force, even though its mass is the same. The same holds true for steel ships. The average density of an object majorly determines if the object will float. If an object's average density is less than that of the surrounding fluid, it will float. The...
8.2K
Buoyancy and Stability for Submerged and Floating Bodies01:11

Buoyancy and Stability for Submerged and Floating Bodies

2.4K
In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...
2.4K
Accelerating Fluids01:17

Accelerating Fluids

1.9K
When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
1.9K
Surface Tension of Fluid01:22

Surface Tension of Fluid

1.0K
Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...
1.0K
Archimedes' Principle01:13

Archimedes' Principle

11.9K
Archimedes' principle states that an upward buoyant force exerted on a body that is immersed partially or entirely in a fluid is equal to the weight of the fluid displaced by it. To understand how much buoyant force is needed to make an object float, let us think about what happens when a submerged object is removed from a fluid. If the object were not in the fluid, the space occupied by the object would be filled by the fluid having a weight wfl. This weight is supported by the...
11.9K

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

Brightness demixing for simultaneous multi-target imaging in 3D single-molecule localization microscopy.

Nature methods·2026
Same author

GRASPion: An open-source, programmable brainbot for active matter research.

The Review of scientific instruments·2026
Same author

Elastic Wave Packets Crossing a Space-Time Interface.

Physical review letters·2025
Same author

Effects of nonlinearity on Anderson localization of surface gravity waves.

Nature communications·2024
Same author

Experimental observation of topological transition in linear and nonlinear parametric oscillators.

Physical review. E·2024
Same author

Flexible implementation of modulated localisation microscopy based on DMD.

Journal of microscopy·2024
Same journal

Six ways to put the public at the heart of science and policy.

Nature·2026
Same journal

The complex truth about trust in science.

Nature·2026
Same journal

Have people stopped trusting science? The data tell a surprising story.

Nature·2026
Same journal

How FAIR data are helping to build trust in science.

Nature·2026
Same journal

Scientists should recognize their own political biases to build public trust.

Nature·2026
Same journal

Harmonizing standards and resources for the medical genome.

Nature·2026
関連記事をすべて見る

関連する実験動画

Updated: Dec 10, 2025

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions
08:49

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions

Published on: February 17, 2019

6.8K

浮遊液の下を浮遊している

Benjamin Apffel1, Filip Novkoski1, Antonin Eddi2

  • 1ESPCI Paris, PSL University, CNRS, Institut Langevin, Paris, France.

Nature
|September 4, 2020
PubMed
まとめ
この要約は機械生成です。

垂直振動は重力に逆らって 大きな液体の層を安定させることができます 液体上をひっくり返して浮くことができる

さらに関連する動画

Safe Experimentation in Optical Levitation of Charged Droplets Using Remote Labs
09:09

Safe Experimentation in Optical Levitation of Charged Droplets Using Remote Labs

Published on: January 10, 2019

8.1K
Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

2.6K

関連する実験動画

Last Updated: Dec 10, 2025

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions
08:49

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions

Published on: February 17, 2019

6.8K
Safe Experimentation in Optical Levitation of Charged Droplets Using Remote Labs
09:09

Safe Experimentation in Optical Levitation of Charged Droplets Using Remote Labs

Published on: January 10, 2019

8.1K
Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

2.6K

科学分野:

  • 流体力学
  • 非線形ダイナミクス
  • 表面物理学

背景:

  • 液体層は,重力によるレイリー=テイラー不安定性により,密度が低い介質の上に置くと通常崩壊します.
  • 垂直振動は,効果的重力の動的平均化による液体の安定化のための確立された方法です.

研究 の 目的:

  • 支持する空気層の共振刺激を用いて,大きな液体層の安定化を調査する.
  • 浮遊する液体層に 逆向きの浮力と浮遊する物体の現象を 探求する
  • 理論的に予測し,実験的に安定した逆転フローターの条件を検証する.

主な方法:

  • 大量の液体 (最大 0.5 L,幅 20 cm) を支えるための空気層の共振刺激を用いた実験装置.
  • 逆転浮遊体を安定化するために必要な最小刺激を,その質量に基づいて予測する理論モデルです.
  • 重体の選択的な落下を実験的に観察し,検証する.

主要な成果:

  • 大量の液体層を 支える空気層を刺激することで 浮上させました
  • 下部液体界面で安定した逆浮力位置の形成を証明した.
  • 垂直の振動は 下の界面にある物体の重力を逆転させることが確認されました
  • 逆 floatersを維持するために必要な最小の興奮のための検証された理論的予測.

結論:

  • 垂直の振動は,共鳴刺激により,大量の液体を浮揚させることができます.
  • このテクニックは,物体が逆さまに浮かぶような,直感に反する,安定した構成を作り出します.
  • この発見は,インターフェイス現象と浮力に関する従来の理解に挑戦しています.