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Related Concept Videos

Conditions on Early Earth02:06

Conditions on Early Earth

Around 4 billion years ago, oceans began to condense on earth while volcanic eruptions released nitrogen, carbon dioxide, methane, ammonia, and hydrogen into the primordial atmosphere. However, organisms with the characteristics of life were not initially present on earth. Scientists have used experimentation to determine how organisms evolved that could grow, reproduce, and maintain an internal environment.
Conditions on Early Earth02:06

Conditions on Early Earth

Around 4 billion years ago, oceans began to condense on earth while volcanic eruptions released nitrogen, carbon dioxide, methane, ammonia, and hydrogen into the primordial atmosphere. However, organisms with the characteristics of life were not initially present on earth. Scientists have used experimentation to determine how organisms evolved that could grow, reproduce, and maintain an internal environment.
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...
Thomson's e/m Experiment01:19

Thomson's e/m Experiment

In a beam of charged particles created by a heated cathode, the particles move at different speeds. However, many applications need a beam with uniform particle speeds. An arrangement known as a velocity selector uses electric and magnetic fields to pick particles with a particular speed from the beam.
A particle with charge q, speed v, and mass m enters an area from the top, where the magnetic and electric fields are perpendicular both to the particle's motion and to one another. The magnetic...
Radiation Pressure: Problem Solving01:09

Radiation Pressure: Problem Solving

The radiation pressure applied by an electromagnetic wave on a perfectly absorbing surface equals the energy density of the wave. The wave's momentum also gets transferred to the surface when an electromagnetic wave is entirely absorbed by it. The rate at which momentum is transmitted to an absorbing surface perpendicular to the propagation direction equals the force on the surface.
The average value of the rate of momentum transfer divided by the absorbing area represents the average force per...
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...

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Related Experiment Video

Updated: Jul 7, 2026

Conducting Miller-Urey Experiments
11:10

Conducting Miller-Urey Experiments

Published on: January 21, 2014

ASTROBIOLOGY: Ames's Proposal for Lab Triggers Battle at NASA.

A Lawler

    Science (New York, N.Y.)
    |September 11, 2007
    PubMed
    Summary

    NASA Ames Research Center proposes a new building for its astrobiology program, sparking debate. Some support the initiative, while others worry about costs and the virtual institute

    Area of Science:

    • Astrobiology
    • Space Science
    • Research Infrastructure

    Background:

    • NASA's Ames Research Center is considering a land exchange.
    • A new building is proposed for the astrobiology program.
    • The program's core is a two-year-old virtual institute at Ames.

    Purpose of the Study:

    • To evaluate the proposal for a new astrobiology building at NASA Ames.
    • To understand the potential benefits and drawbacks of the proposed facility.
    • To address conflicting opinions from scientific panels.

    Main Methods:

    • Analysis of proposals for land use and new construction.
    • Review of opinions from scientific advisory panels.
    • Consideration of operational costs and program priorities.

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    Exploring the Effects of Spaceflight on Mouse Physiology using the Open Access NASA GeneLab Platform

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    Last Updated: Jul 7, 2026

    Conducting Miller-Urey Experiments
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    Published on: January 21, 2014

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    12:55

    Chemical Gardens as Flow-through Reactors Simulating Natural Hydrothermal Systems

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    Exploring the Effects of Spaceflight on Mouse Physiology using the Open Access NASA GeneLab Platform
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    Main Results:

    • Conflicting opinions exist regarding the proposed building.
    • Concerns raised about undermining the virtual institute model.
    • Potential diversion of funds from other priorities is a concern.

    Conclusions:

    • The proposal for a new astrobiology building at NASA Ames is under review.
    • Debate continues on the optimal structure and funding for the astrobiology program.
    • Further discussion is anticipated at an upcoming meeting.