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

Density00:56

Density

18.8K
Density is an important characteristic of substances, crucial in determining whether an object sinks or floats in a fluid. Its SI unit is kg/m3, and its cgs unit is g/cm3. The density of an object helps in identifying its composition, and also reveals information about the phase of the matter and its substructure. The densities of liquids and solids are roughly comparable, consistent with the fact that their atoms are in close contact. However, gases have much lower densities than liquids and...
18.8K
Measurement: Derived Units03:02

Measurement: Derived Units

53.5K
The International System of Units or SI system, by international agreement, has fixed measurement units for seven fundamental properties: length, mass, time, temperature, electric current, amount of substance, and luminosity. These are called the SI base units.
53.5K
Density, Specific Weight, Specific Gravity and Compressibility of Fluid01:27

Density, Specific Weight, Specific Gravity and Compressibility of Fluid

1.4K
Density, specific weight, specific gravity, and compressibility are fundamental properties of fluids. Density is the mass per unit volume, characterizing the mass of a fluid system. It influences buoyancy, pressure, flow dynamics, viscosity, thermal conductivity, and sound propagation. For instance, in pipeline design, accurate density measurements ensure that the pipeline can handle the fluid's mass.
Specific weight represents the weight per unit volume and is calculated by multiplying...
1.4K
Bulk Density of Aggregate01:22

Bulk Density of Aggregate

998
Bulk density refers to the mass of aggregate particles that would fill a unit volume. The concept of bulk density originates from the inability to pack aggregate particles in a manner that completely eliminates void spaces. Hence, the term bulk refers to the volume that encompasses both the aggregates and the voids. This measurement is crucial when aggregates are batched by volume and is used to convert quantities by mass to volume.
Most natural mineral aggregates, like sand and gravel,...
998
Density and Archimedes' Principle01:05

Density and Archimedes' Principle

8.4K
When a lump of clay is dropped into water, it sinks. But if the same lump of clay is molded into the shape of a boat, it starts to float. Because of its shape, the clay boat displaces more water than the lump and experiences a greater buoyant force, even though its mass is the same. The same holds true for steel ships. The average density of an object majorly determines if the object will float. If an object's average density is less than that of the surrounding fluid, it will float. The...
8.4K
Uncertainty in Measurement: Reading Instruments02:46

Uncertainty in Measurement: Reading Instruments

49.6K
Counting is the type of measurement that is free from uncertainty, provided the number of objects being counted does not change during the process. Such measurements result in exact numbers. By counting the eggs in a carton, for instance, one can determine exactly how many eggs are there in the carton. Similarly, the numbers of defined quantities are also exact. For example, 1 foot is exactly 12 inches, 1 inch is exactly 2.54 centimeters, and 1 gram is exactly 0.001 kilograms. Quantities...
49.6K

You might also read

Related Articles

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

Sort by
Same author

Use of a novel oleaginous microorganism as a potential source of lipids for weanling pigs<sup></sup>.

Translational animal science·2020
Same author

Correlation of Successive Atomic Steps in Crystals by Relaxation Mode Analysis.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2020
Same author

Relaxation Modes of Trapped Crystal Point Defects: the Three-Neighbor Shells Model in NaCl.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2019
Same author

Electric Fields Produced in Cubic Crystals by Point Defects.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2019
Same author

Surface-Layer Relaxation in the Dielectric Spectrum of CaF<sub>2</sub> Doped With GdF<sub>3</sub>.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2019
Same author

Relaxation Modes for Trapped Crystal Point Defects.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2019
Same journal

The Photochemistry of Propane at High Photon Energies (8.4-21.2 eV).

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
Same journal

Isomerization Processes in Ions of the Empirical Formula <math> </math>.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
Same journal

Temperature Dependence of Photocurrents Produced by X and Gamma Rays in Silicon Radiation Detectors.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
Same journal

Stable Radical-Anions Derived from Glyoxal <i>Bis</i>(phenylhydrazones).

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
Same journal

High-Speed (Subsecond) Measurement of Heat Capacity, Electrical Resistivity, and Thermal Radiation Properties of Niobium in the Range 1500 to 2700 K.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
Same journal

A New Determination of the Atomic Weight of Zinc.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry·2021
See all related articles

Related Experiment Video

Updated: Dec 26, 2025

Measuring the Densities of Aqueous Glasses at Cryogenic Temperatures
09:50

Measuring the Densities of Aqueous Glasses at Cryogenic Temperatures

Published on: June 28, 2017

9.0K

Comparative Density Measurements for Solid Specimens Weighing a Few Milligrams.

A D Franklin1, J R Donaldson1

  • 1Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234.

Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry
|March 20, 2020
PubMed
Summary
This summary is machine-generated.

A novel density comparison technique accurately measured tungsten wire density. The method also confirmed expected random errors for larger, less dense materials like silicon and calcium fluoride.

Keywords:
CaF2Sidensitymeasurement techniquetungsten wires

More Related Videos

Quantification of Cellular Densities and Antigenic Properties using Magnetic Levitation
05:25

Quantification of Cellular Densities and Antigenic Properties using Magnetic Levitation

Published on: May 17, 2021

3.0K
Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions
08:38

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions

Published on: February 15, 2019

15.5K

Related Experiment Videos

Last Updated: Dec 26, 2025

Measuring the Densities of Aqueous Glasses at Cryogenic Temperatures
09:50

Measuring the Densities of Aqueous Glasses at Cryogenic Temperatures

Published on: June 28, 2017

9.0K
Quantification of Cellular Densities and Antigenic Properties using Magnetic Levitation
05:25

Quantification of Cellular Densities and Antigenic Properties using Magnetic Levitation

Published on: May 17, 2021

3.0K
Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions
08:38

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions

Published on: February 15, 2019

15.5K

Area of Science:

  • Materials Science
  • Physics

Background:

  • Accurate density determination is crucial for material characterization.
  • Previous methods had limitations for microgram-scale specimens.

Purpose of the Study:

  • To adapt and validate a density comparison technique for microgram-scale tungsten wires.
  • To assess the technique's accuracy for larger, less dense materials.

Main Methods:

  • Utilized a previously described density comparison technique.
  • Applied the method to tungsten wires (approx. 1.3 mg).
  • Validated accuracy using known densities of silicon (Si) and calcium fluoride (CaF2).

Main Results:

  • Achieved density comparison for tungsten wires within a few percent error.
  • Confirmed expected random error of a few parts in 10^4 for larger specimens.
  • Demonstrated reliability for both small, dense, and larger, less dense materials.

Conclusions:

  • The density comparison technique is effective for microgram-scale tungsten wires.
  • The method's accuracy is validated for a range of material densities.
  • This technique offers a precise approach to material density analysis.