Related Experiment Video

Updated: Jul 30, 2026

Isolating Intestinal Stem Cells from Adult Drosophila Midguts by FACS to Study Stem Cell Behavior During Aging
10:57

Isolating Intestinal Stem Cells from Adult Drosophila Midguts by FACS to Study Stem Cell Behavior During Aging

Published on: December 16, 2014

The Elusive Old Population of the Dwarf Spheroidal Galaxy Leo I

Held, Saviane, Momany

    The Astrophysical Journal
    |February 3, 2000
    PubMed

    More Related Videos

    Age-dependent Dynamics of Locomotion in Caenorhabditis elegans: A Lyapunov Exponent Analysis06:44

    Age-dependent Dynamics of Locomotion in Caenorhabditis elegans: A Lyapunov Exponent Analysis

    Published on: September 23, 2025

    Protocol for Single-Cell Dissociation, RNA Sequencing, and Isolation of Myoepithelial Cells and Fibroblasts from the Aged Lacrimal and Salivary Glands08:37

    Protocol for Single-Cell Dissociation, RNA Sequencing, and Isolation of Myoepithelial Cells and Fibroblasts from the Aged Lacrimal and Salivary Glands

    Published on: April 24, 2026

    Related Concept Videos

    Kepler's First Law of Planetary Motion01:10

    Kepler's First Law of Planetary Motion

    In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. He formulated his first two laws based on the observations of his forebears, Nikolaus Copernicus and Tycho Brahe.
    Polish astronomer Nikolaus Copernicus put forth a theory that stated a heliocentric model for the solar system. According to this heliocentric theory, all the planets, including Earth, orbit the Sun in circular orbits.
    On the other hand,...
    Kepler's Second Law of Planetary Motion01:29

    Kepler's Second Law of Planetary Motion

    In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. His first law states that all planets orbit the Sun in an elliptical orbit, with the Sun at one of the ellipse's foci. Therefore, the distance of a planet from the Sun varies throughout its revolution around the Sun.
    While in an elliptical orbit, the total energy of the planet is conserved. Therefore, the planet slows down when it is at apogee and...
    Kepler's Third Law of Planetary Motion01:18

    Kepler's Third Law of Planetary Motion

    In the early 17th century, German astronomer and mathematician Johannes Kepler postulated three laws for the motion of planets in the solar system. In 1909, he formulated his first two laws based on the observations of his forebears, Nikolaus Copernicus and Tycho Brahe. However, in 1918, he published his third law of planetary motion, which gives a precise mathematical relationship between a planet's average distance from the Sun and the amount of time it takes to revolve around the Sun. It...
    Schwarzschild Radius and Event Horizon01:21

    Schwarzschild Radius and Event Horizon

    No object with a finite mass can travel faster than the speed of light in a vacuum. This fact has an interesting consequence in the domain of extremely high gravitational fields.
    The minimum speed required to launch a projectile from the surface of an object to which it is gravitationally bound so that it eventually escapes the object’s gravitational field is called the escape velocity. The escape velocity is independent of the mass of the object. Merging the idea of escape velocity with the...
    Gravitation Between Spherically Symmetric Masses01:14

    Gravitation Between Spherically Symmetric Masses

    The gravitational potential energy between two spherically symmetric bodies can be calculated from the masses and the distance between the bodies, assuming that the center of mass is concentrated at the respective centers of the bodies.
    Eccentricity of an Ellipse01:27

    Eccentricity of an Ellipse

    An ellipse is a fundamental conic section defined by the constant sum of distances from any point on its curve to two fixed points, known as the foci. This geometric property can be physically demonstrated using a pencil, string, and two pins. By anchoring the string at both ends and maintaining it taut with a pencil, one can trace the outline of an ellipse.The shape and extent of the ellipse are determined by its eccentricity, e, defined as the ratio of the distance between the center and a...