Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Weightlessness01:01

Weightlessness

When an object is dropped, it accelerates toward the center of the Earth. If the net external force on the object is its weight, it is said to be in free fall; that is, the only force acting on the object is gravity. Galileo was instrumental in showing that, in the absence of air resistance, all objects fall with the same acceleration g. However, when objects on the Earth fall downward, they are never truly in free fall, because there is always some upward resistance force from the air acting...
Gravity between Spherical Bodies01:27

Gravity between Spherical Bodies

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...
Acceleration due to Gravity on Earth01:21

Acceleration due to Gravity on Earth

According to Newton's law of gravitation, the gravitational force on a body is proportional to its mass. According to Newton's second law of motion, the acceleration produced by an external force is inversely proportional to the force. Hence, the acceleration of an object under an external force of gravitation is independent of its mass.
The acceleration of an object close to the Earth, because of the Earth's gravitational pull, is called the acceleration due to gravity. It is always directed...
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...
Variation in Acceleration due to Gravity near the Earth's Surface01:20

Variation in Acceleration due to Gravity near the Earth's Surface

An object's apparent weight is its weight measured by a spring balance at its location. It is different from its true weight, the force with which the Earth pulls it, because of the Earth's rotation. Mathematically, an object's apparent weight equals its true weight minus the centripetal force that keeps it in a circular motion along with the Earth's surface every 24 hours.
The difference between the true and apparent weights is proportional to the square of the Earth's angular speed. Since the...
Measuring Acceleration Due to Gravity01:12

Measuring Acceleration Due to Gravity

Consider a coffee mug hanging on a hook in a pantry. If the mug gets knocked, it oscillates back and forth like a pendulum until the oscillations die out.
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Design and Control of a 1-DOF MRI Compatible Pneumatically Actuated Robot with Long Transmission Lines.

IEEE/ASME transactions on mechatronics : a joint publication of the IEEE Industrial Electronics Society and the ASME Dynamic Systems and Control Division·2011
Same author

Effect of oxidized low-density lipoprotein concentration polarization on human smooth muscle cells' proliferation, cycle, apoptosis and oxidized low-density lipoprotein uptake.

Journal of the Royal Society, Interface·2011
Same author

Acrolein hydrogenation on Pt(211) and Au(211) surfaces: a density functional theory study.

Physical chemistry chemical physics : PCCP·2011
Same author

Anhydrous proton-conducting membrane based on poly-2-vinylpyridinium dihydrogenphosphate for electrochemical applications.

The journal of physical chemistry. B·2011
Same author

Pharmacophore identification, virtual screening and biological evaluation of prenylated flavonoids derivatives as PKB/Akt1 inhibitors.

European journal of medicinal chemistry·2011
Same author

Metabolomic study of insomnia and intervention effects of Suanzaoren decoction using ultra-performance liquid-chromatography/electrospray-ionization synapt high-definition mass spectrometry.

Journal of pharmaceutical and biomedical analysis·2011

Related Experiment Video

Updated: Jul 15, 2026

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment
11:38

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

Published on: December 3, 2019

8.1K

Materials dataset from microgravity levitation experiments on the China Space Station.

Yanan Liu1,2, Shengyang Li3,4,5, Bo Yang1,2

  • 1Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing, 100094, China.

Scientific Data
|January 16, 2026
PubMed
Summary

The China Space Station

More Related Videos

Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite
07:00

Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite

Published on: March 11, 2020

7.8K
Evaluating Flight Performance and Eye Movement Patterns Using Virtual Reality Flight Simulator
03:49

Evaluating Flight Performance and Eye Movement Patterns Using Virtual Reality Flight Simulator

Published on: May 19, 2023

1.5K

Related Experiment Videos

Last Updated: Jul 15, 2026

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment
11:38

Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

Published on: December 3, 2019

8.1K
Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite
07:00

Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite

Published on: March 11, 2020

7.8K
Evaluating Flight Performance and Eye Movement Patterns Using Virtual Reality Flight Simulator
03:49

Evaluating Flight Performance and Eye Movement Patterns Using Virtual Reality Flight Simulator

Published on: May 19, 2023

1.5K

Area of Science:

  • Materials Science
  • Physics
  • Space Science

Background:

  • Microgravity research enables novel materials processing and property measurements.
  • Containerless electrostatic levitation on the China Space Station offers unique research opportunities.
  • High-temperature materials research benefits from non-contact processing in space.

Purpose of the Study:

  • To present a dataset of containerless electrostatic levitation experiments.
  • To compare on-orbit and ground-matched experiments to study gravity's influence.
  • To provide thermophysical data for materials research.

Main Methods:

  • Utilized the China Space Station's electrostatic levitation platform.
  • Integrated laser heating, infrared pyrometry, and high-speed diagnostics.
  • Developed a ground-matched system for comparative analysis.

Main Results:

  • Compiled 565 experimental records (420 on-orbit, 145 ground-matched).
  • Included data on metallic alloys, ceramics, and other materials.
  • Captured key thermophysical parameters like liquid-phase density and thermal response.

Conclusions:

  • The dataset facilitates systematic investigation of gravity-related material behavior.
  • Valuable resource for containerless materials processing and space-based techniques.
  • Enables research into gravitational effects on material properties.