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

Thermometers and Temperature Scales01:22

Thermometers and Temperature Scales

5.7K
Any physical property that depends consistently and reproducibly on temperature can be used as the basis of a thermometer. For example, volume increases with temperature for most substances. This property is the basis for the common alcohol thermometer and the original mercury thermometers. Other properties used to measure temperature include electrical resistance, color, and the emission of infrared radiation.
As many physical properties depend on temperature, the variety of thermometers is...
5.7K
Gas Thermometers and the Kelvin Scale01:22

Gas Thermometers and the Kelvin Scale

4.8K
The definition of temperature in terms of molecular motion suggests that there should be a lowest possible temperature, where the average kinetic energy of molecules is zero (or the minimum allowed by quantum mechanics). Experiments confirm the existence of such a temperature, called absolute zero. An absolute temperature scale is one whose zero point is absolute zero. Such scales are convenient in science because several physical quantities, such as the volume of an ideal gas, are directly...
4.8K
Temperature Measurement Sites01:14

Temperature Measurement Sites

2.0K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
2.0K
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

1.1K
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
1.1K
Instrument Calibration01:12

Instrument Calibration

248
Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
248
Assessing Body Temperature - Rectal01:27

Assessing Body Temperature - Rectal

5.8K
Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
5.8K

You might also read

Related Articles

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

Sort by
Same author

Making continental crust on water-bearing terrestrial planets.

Science advances·2025
Same author

Quasicrystal synthesis by shock compression.

Communications chemistry·2024
Same author

Highest terrestrial <sup>3</sup>He/<sup>4</sup>He credibly from the core.

Nature·2023
Same author

Shock-recovered maskelynite indicates low-pressure ejection of shergottites from Mars.

Science advances·2023
Same author

Electrical discharge triggers quasicrystal formation in an eolian dune.

Proceedings of the National Academy of Sciences of the United States of America·2022
Same author

Accidental synthesis of a previously unknown quasicrystal in the first atomic bomb test.

Proceedings of the National Academy of Sciences of the United States of America·2021

Related Experiment Video

Updated: Aug 23, 2025

Simulation of Early Earth Hydrothermal Chimneys in a Thermal Gradient Environment
06:29

Simulation of Early Earth Hydrothermal Chimneys in a Thermal Gradient Environment

Published on: February 27, 2021

3.6K

Calibrating a thermometer for Earth's interior over time.

Paul D Asimow1

  • 1Division of Geological and Planetary Sciences, California Institute of Technology.

Science Advances
|November 2, 2022
PubMed
Summary

New experiments using high pressure and temperature help scientists track Earth's internal heat. This research utilizes the geological evidence from massive volcanic events to understand thermal changes over time.

Area of Science:

  • Geophysics
  • Geochemistry
  • Volcanology

Background:

  • Understanding the thermal evolution of Earth's interior is crucial for deciphering mantle dynamics and plate tectonics.
  • The geological record, particularly large-volume volcanic episodes, provides key insights into past thermal regimes.

Purpose of the Study:

  • To refine methods for tracing the thermal history of Earth's deep interior.
  • To enhance the interpretation of geological records from large volcanic events.

Main Methods:

  • Conducting novel high-pressure, high-temperature experimental simulations.
  • Analyzing the geochemical and physical signatures preserved in volcanic materials.

Main Results:

  • Established new experimental constraints on mineral behavior under deep Earth conditions.

More Related Videos

Simulating Temperature in a Soil Incubation Experiment
08:39

Simulating Temperature in a Soil Incubation Experiment

Published on: October 28, 2022

3.0K
Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors
08:49

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

Published on: December 21, 2019

9.5K

Related Experiment Videos

Last Updated: Aug 23, 2025

Simulation of Early Earth Hydrothermal Chimneys in a Thermal Gradient Environment
06:29

Simulation of Early Earth Hydrothermal Chimneys in a Thermal Gradient Environment

Published on: February 27, 2021

3.6K
Simulating Temperature in a Soil Incubation Experiment
08:39

Simulating Temperature in a Soil Incubation Experiment

Published on: October 28, 2022

3.0K
Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors
08:49

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

Published on: December 21, 2019

9.5K
  • Demonstrated a stronger correlation between volcanic eruption characteristics and mantle thermal states.

    • Conclusions:

    • High-pressure, high-temperature experiments significantly improve the accuracy of reconstructing Earth's thermal evolution.
    • Intermittent, large-volume volcanic episodes serve as reliable markers for past thermal states in the Earth's interior.