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

Influence of Earth's Curvature and Atmospheric Refraction on Leveling01:26

Influence of Earth's Curvature and Atmospheric Refraction on Leveling

461
During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance. Over a...
461
Acceleration due to Gravity on Other Planets01:24

Acceleration due to Gravity on Other Planets

4.6K
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...
4.6K
Global Climate Change01:50

Global Climate Change

27.8K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
27.8K
Boundary Layer Characteristics01:18

Boundary Layer Characteristics

316
When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...
316
Variation in Acceleration due to Gravity near the Earth's Surface01:20

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

2.6K
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...
2.6K
Coriolis Force01:23

Coriolis Force

5.0K
An accelerating particle experiences a force equal to the mass multiplied by the acceleration in an inertial frame of reference. Consider a particle in a non-inertial frame of reference, such as a sliding ball on a rotating table. The acceleration of the ball in this rotating reference frame is different than in the intertial frame, which modifies its equation of motion. The fictitious forces acting additionally on a rotating frame of reference alter Newton's Second Law expression.
5.0K

You might also read

Related Articles

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

Sort by
Same author

A universal scaling framework for granular asteroid strength and its application to the surface of asteroid Bennu.

Nature communications·2026
Same author

Low thermal inertia of carbonaceous asteroid Bennu driven by cracks observed in returned samples.

Nature communications·2026
Same author

Dust devil migration patterns reveal strong near-surface winds across Mars.

Science advances·2025
Same author

Morphology of ejecta features from the impact on asteroid Dimorphos.

Nature communications·2025
Same author

Elliptical ejecta of asteroid Dimorphos is due to its surface curvature.

Nature communications·2025
Same author

Author Correction: Mechanical properties of rubble pile asteroids (Dimorphos, Itokawa, Ryugu, and Bennu) through surface boulder morphological analysis.

Nature communications·2024

Related Experiment Video

Updated: Nov 11, 2025

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management
08:09

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Published on: September 12, 2017

12.1K

Periodic Bedrock Ridges at the ExoMars 2022 Landing Site: Evidence for a Changing Wind Regime.

S Silvestro1,2, A Pacifici3, F Salese4,3

  • 1Istituto Nazionale di Astrofisica (INAF) Osservatorio Astronomico di Capodimonte Napoli Italy.

Geophysical Research Letters
|March 29, 2021
PubMed
Summary

Periodic Bedrock Ridges in Mars's Oxia Planum reveal multiple climate shifts during the Amazonian period. These wind-formed features offer crucial insights into paleo winds and landing site geology.

Keywords:
ExoMarsMarsOxialandingrippleswind

More Related Videos

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

8.4K
Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
08:54

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

8.9K

Related Experiment Videos

Last Updated: Nov 11, 2025

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management
08:09

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Published on: September 12, 2017

12.1K
Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
06:55

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

8.4K
Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
08:54

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

8.9K

Area of Science:

  • Planetary Science
  • Geology
  • Climate Science

Background:

  • Oxia Planum, Mars, is the ExoMars 2022 landing site, exhibiting geological evidence of a past wet environment.
  • Aeolian (wind-formed) bedforms are common, with prior studies focusing on rover trafficability rather than climatic records.

Purpose of the Study:

  • To investigate the potential of aeolian bedforms in Oxia Planum to record climatic fluctuations.
  • To analyze a specific set of ridges, interpreted as Periodic Bedrock Ridges (PBRs), for climatic information.

Main Methods:

  • Analysis of ridge regularity and defect terminations.
  • Identification and study of preserved megaripples associated with PBRs.
  • Comparison of PBR orientation with superimposed transverse aeolian ridges.

Main Results:

  • Identification of Periodic Bedrock Ridges (PBRs) indicating multiple climatic changes in the Amazonian period.
  • Evidence suggests PBRs formed under different wind regimes than later transverse aeolian ridges.
  • Preserved megaripples provide further clues to PBR formation and paleo wind conditions.

Conclusions:

  • Oxia Planum's aeolian features, specifically PBRs, serve as archives of past climatic variability.
  • A significant change in the Martian wind regime occurred in the Amazonian.
  • Understanding PBR formation mechanisms is key to reconstructing paleo winds and landing site geology.