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

Rocket Propulsion In Empty Space - II01:12

Rocket Propulsion In Empty Space - II

3.6K
The motion of a rocket is governed by the conservation of momentum principle. A rocket's momentum changes by the same amount (with the opposite sign) as the ejected gases. As time goes by, the rocket's mass (which includes the mass of the remaining fuel) continuously decreases, and its velocity increases. Therefore, the principle of conservation of momentum is used to explain the dynamics of a rocket's motion. The ideal rocket equation gives the change in velocity that a rocket...
3.6K
Rocket Propulsion in Empty Space - I01:13

Rocket Propulsion in Empty Space - I

3.9K
The driving force for the motion of any vehicle is friction, but in the case of rocket propulsion in space, the friction force is not present. The motion of a rocket changes its velocity (and hence its momentum) by ejecting burned fuel gases, thus causing it to accelerate in the direction opposite to the velocity of the ejected fuel. In this situation, the mass and velocity of the rocket constantly change along with the total mass of ejected gases. Due to conservation of momentum, the...
3.9K
Unrealistic Optimism Bias01:30

Unrealistic Optimism Bias

292
Unrealistic optimism bias is the tendency to overestimate the likelihood of positive outcomes. This cognitive bias makes individuals believe they are less likely to experience failures, setbacks, or risks and more likely to succeed than others. For example, people may assume they are less prone to health issues, accidents, or financial struggles than their peers, even when they share similar risk factors.One key component of this bias is the above-average effect, where individuals perceive...
292
Pozzolans01:21

Pozzolans

666
Pozzolans are siliceous or aluminous materials blended with Portland cement. They interact with the calcium hydroxide produced during the hydration of Portland cement and contribute to improved strength and durability of concrete. The pozzolanic activity, a measure of a pozzolan's effectiveness, is typically assessed using the strength activity index, as defined in ASTM C 618-93, which calculates the ratio of the compressive strength of cement mixtures with and without pozzolan.
Fly ash is...
666
Upward Impending Motion01:21

Upward Impending Motion

630
A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. Its operation is based on converting the force applied at its handle into a torsional moment, causing the upward impending motion of the screw. This movement is accomplished by overcoming the static friction between the threads of the screw and the jack.
To better comprehend how a screw jack functions, consider the completely unraveled thread as a block in contact with the...
630
Robbers Cave04:49

Robbers Cave

14.9K
During the 1950s, the landmark Robbers Cave experiment demonstrated that when groups must compete with one another, intergroup conflict, hostility, and even violence may result. At the Oklahoman summer camp, two troops of boys—termed the Rattlers and the Eagles—took part in a week-long tournament. During this time, their negativity culminated in derogatory name-calling, fistfights, and even vandalism and destruction of property. However, this work also revealed that such tension...
14.9K

You might also read

Related Articles

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

Sort by
Same author

Brain stimulation prevents neural downregulation and optimizes learning.

NeuroImage·2026
Same author

Rumen function and grazing behavior of early-lactation dairy cows supplemented with fodder beet.

Journal of dairy science·2021
Same author

The effects of elevated CO<sub>2</sub> on seed production and seedling recruitment in a sheep-grazed pasture.

Oecologia·2017
Same author

Loss of anti-contractile effect of perivascular adipose tissue in offspring of obese rats.

International journal of obesity (2005)·2017
Same author

Loss of anti-contractile effect of perivascular adipose tissue in offspring of obese rats.

International journal of obesity (2005)·2016
Same author

Assessing the impact of a nurse-delivered home dried blood spot service on uptake of testing for household contacts of hepatitis B-infected pregnant women across two London trusts.

Epidemiology and infection·2016
Same journal

The Quiet Revolution.

Mind and mental health magazine·2016
Same journal

Teamwork for the Mentally Handicapped.

Mind and mental health magazine·2016
Same journal

What's on Your Label?

Mind and mental health magazine·2016
Same journal

Swings and Roundabouts.

Mind and mental health magazine·2016
Same journal

News Review.

Mind and mental health magazine·2016
Same journal

Planning Against Neglect.

Mind and mental health magazine·2016
See all related articles

Related Experiment Video

Updated: Mar 14, 2026

Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities
07:59

Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities

Published on: January 6, 2023

4.4K

Utopia on the Rocks.

G Edwards

    Mind and Mental Health Magazine
    |September 28, 2016
    PubMed
    Summary
    This summary is machine-generated.

    Sociologists frequently analyze American society, often finding little hope. This book examines the perceived crisis of conscience in the USA, suggesting it is both strongly felt and manufactured.

    More Related Videos

    Photorealistic Learned Landscapes for Augmented Reality
    06:54

    Photorealistic Learned Landscapes for Augmented Reality

    Published on: June 27, 2025

    845
    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

    20.2K

    Related Experiment Videos

    Last Updated: Mar 14, 2026

    Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities
    07:59

    Coral Reef Arks: An In Situ Mesocosm and Toolkit for Assembling Reef Communities

    Published on: January 6, 2023

    4.4K
    Photorealistic Learned Landscapes for Augmented Reality
    06:54

    Photorealistic Learned Landscapes for Augmented Reality

    Published on: June 27, 2025

    845
    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

    20.2K

    Area of Science:

    • Sociology
    • American Studies

    Background:

    • Sociological analysis of American society often focuses on negative trends and a perceived lack of hope.
    • There is a recurring theme in sociological literature that critiques the state of American society.

    Purpose of the Study:

    • To analyze the concept of a 'crisis of conscience' within American society.
    • To explore the origins and nature of this perceived crisis, distinguishing between genuine and manufactured elements.

    Main Methods:

    • Qualitative analysis of sociological literature and commentary on American society.
    • Critical examination of prevailing narratives surrounding societal issues in the USA.

    Main Results:

    • Identifies a tendency among sociologists to focus on societal decline.
    • Suggests that the 'crisis of conscience' in the USA is a complex phenomenon, partly constructed by prevailing discourse.

    Conclusions:

    • The persistent focus on negative aspects of American society may contribute to a manufactured sense of crisis.
    • Further sociological inquiry is needed to differentiate between authentic societal problems and those amplified by discourse.