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

Impact01:30

Impact

564
Impact occurs when two bodies collide, leading to the application of impulsive forces between them. Analyzing impact mechanics involves considering two colliding particles moving along a line known as the line of impact, which passes through their centers and is perpendicular to the contact plane.
When particles with different initial velocities collide, they induce deformation by applying equal and opposite impulses. At the point of maximum deformation, the particles move together with...
564
Types of Collisions - II01:19

Types of Collisions - II

10.3K
When two or more objects collide with each other, they can stick together to form one single composite object (after collision). The total mass of the object after the collision is the sum of the masses of the original objects, and it moves with a velocity dictated by the conservation of momentum. Although the system's total momentum remains constant, the kinetic energy decreases, and thus such a collision is an inelastic collision. Most of the collisions between objects in daily life are...
10.3K
Elastic Collisions: Case Study01:15

Elastic Collisions: Case Study

20.9K
Elastic collision of a system demands conservation of both momentum and kinetic energy. To solve problems involving one-dimensional elastic collisions between two objects, the equations for conservation of momentum and conservation of internal kinetic energy can be used. For the two objects, the sum of momentum before the collision equals the total momentum after the collision. An elastic collision conserves internal kinetic energy, and so the sum of kinetic energies before the collision equals...
20.9K
The Fossil Record02:56

The Fossil Record

28.2K
The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
28.2K
Elastic Collisions: Introduction01:00

Elastic Collisions: Introduction

15.4K
An elastic collision is one that conserves both internal kinetic energy and momentum. Internal kinetic energy is the sum of the kinetic energies of the objects in a system. Truly elastic collisions can only be achieved with subatomic particles, such as electrons striking nuclei. Macroscopic collisions can be very nearly, but not quite, elastic, as some kinetic energy is always converted into other forms of energy such as heat transfer due to friction and sound. An example of a nearly...
15.4K
Electrostatic Boundary Conditions in Dielectrics01:27

Electrostatic Boundary Conditions in Dielectrics

2.0K
When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's permittivity....
2.0K

You might also read

Related Articles

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

Sort by
Same author

Breathing life into the boring billion: Direct constraints from 1.4 Ga fluid inclusions reveal a fair climate and oxygenated atmosphere.

Proceedings of the National Academy of Sciences of the United States of America·2025
Same author

Case 2: Upper Airway Obstruction in a Previously Healthy 3-Year-Old Boy.

Pediatrics in review·2025
Same author

Correlation of sub-centennial-scale pulses of initial Central Atlantic Magmatic Province lavas and the end-Triassic extinctions.

Proceedings of the National Academy of Sciences of the United States of America·2024
Same author

In Situ Quantification of Carbonate Species Concentrations, pH, and pCO<sub>2</sub> in Calcite Fluid Inclusions Using Confocal Raman Spectroscopy.

Applied spectroscopy·2024
Same author

Unveiling a new oceanic anoxic event at the Norian/Rhaetian boundary (Late Triassic).

Scientific reports·2024
Same author

Subclinical Atherosclerosis to Guide Treatment in Dyslipidemia and Diabetes Mellitus.

Current atherosclerosis reports·2024
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
See all related articles

Related Experiment Video

Updated: Mar 13, 2026

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System
09:44

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System

Published on: June 5, 2014

13.5K

Impact ejecta at the Paleocene-Eocene boundary.

Morgan F Schaller1, Megan K Fung2, James D Wright3

  • 1Earth and Environmental Sciences, Rensselaer Polytechnic Institute (RPI), Troy, NY 12180, USA. schall@rpi.edu.

Science (New York, N.Y.)
|October 15, 2016
PubMed
Summary
This summary is machine-generated.

An extraterrestrial impact event occurred during the Paleocene-Eocene Thermal Maximum, 56 million years ago. This impact is linked to significant climate changes and evolutionary shifts on Earth.

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

8.6K
Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.8K

Related Experiment Videos

Last Updated: Mar 13, 2026

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System
09:44

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System

Published on: June 5, 2014

13.5K
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

8.6K
Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.8K

Area of Science:

  • Geoscience
  • Paleoclimatology
  • Evolutionary Biology

Background:

  • Extraterrestrial impacts significantly influence Earth's climate and evolution.
  • The Paleocene-Eocene Thermal Maximum (P-E) event, 56 million years ago, involved rapid global warming and carbon cycle disruption.
  • This period saw major evolutionary changes, including mammal expansion and deep-sea extinctions.

Purpose of the Study:

  • To investigate evidence of extraterrestrial impacts at the Paleocene-Eocene boundary.
  • To correlate impact events with the observed climate and evolutionary changes during the P-E Thermal Maximum.

Main Methods:

  • Analysis of geological samples from marine P-E boundary sections.
  • Identification and characterization of silicate glass spherules.
  • Stratigraphic analysis to pinpoint the timing of the impact event.

Main Results:

  • Discovery of silicate glass spherules in a distinct stratigraphic layer across multiple P-E boundary sections.
  • Identification of these spherules as microtektites and microkrystites.
  • Confirmation of an extraterrestrial impact event coinciding with the P-E carbon isotope excursion.

Conclusions:

  • An extraterrestrial impact occurred precisely at the Paleocene-Eocene boundary.
  • This impact event is a significant factor in understanding the climate and evolutionary dynamics of the P-E Thermal Maximum.