A Sense of Scale

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Detail Page

written by Paul Falstad

This page compares the distance/magnitude/size of various objects or constants. This includes physical dimensions such as the diameter of particles, atoms and biological cells, the height of Mt. Everest, depth of the Earth's crust, distances to planets, stars, and galaxies. Colored histograms are displayed for visual aid. Most of the physical quantities are linked to online references.

http://www.falstad.com/scale/

Subjects	Levels	Resource Types
General Physics - Measurement/Units	- High School - Lower Undergraduate - Informal Education	- Instructional Material = Tutorial - Reference Material

Appropriate Courses	Categories	Ratings
- Conceptual Physics - Algebra-based Physics - AP Physics	- New teachers	Currently 5.0/5 Rated 5.0 stars by 1 person Want to rate this material? Login here!

Intended Users:: Learner
Educator
Formats:: text/html
image/gif
Access Rights:: Free access
Restriction:: Has a copyright or other licensing restriction.
Keywords:: distance, length scales, measurement, size
Record Creator:: Metadata instance created June 21, 2004 by Melanie Carter
Record Updated:: July 12, 2008 by Taha Mzoughi
Other Collections:: The Nucleus

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This resource is part of a Physics Front Topical Unit.

Topic: Measurement and the Language of Physics
Unit Title: Scale, Order of Magnitude, and Estimation

This unique website compares the magnitude and size of a broad variety of objects, using colored histograms for ease of visual comparison. Objects range from the nanoscale to distances between galaxies. Most items are linked to annotated reference pages.

Link to Unit:

ComPADRE is beta testing Citation Styles!

Record Link

<a href="https://www.compadre.org/precollege/items/detail.cfm?ID=1599">Falstad, Paul. A Sense of Scale.</a>

AIP Format

P. Falstad, , WWW Document, (http://www.falstad.com/scale/).

AJP/PRST-PER

P. Falstad, A Sense of Scale, <http://www.falstad.com/scale/>.

APA Format

Falstad, P. (n.d.). A Sense of Scale. Retrieved February 14, 2025, from http://www.falstad.com/scale/

Chicago Format

Falstad, Paul. A Sense of Scale. http://www.falstad.com/scale/ (accessed 14 February 2025).

MLA Format

Falstad, Paul. A Sense of Scale. 14 Feb. 2025 <http://www.falstad.com/scale/>.

BibTeX Export Format

@misc{ Author = "Paul Falstad", Title = {A Sense of Scale}, Volume = {2025}, Number = {14 February 2025}, Year = {} }

Refer Export Format

%A Paul Falstad %T A Sense of Scale %U http://www.falstad.com/scale/ %O text/html

EndNote Export Format

%0 Electronic Source %A Falstad, Paul %T A Sense of Scale %V 2025 %N 14 February 2025 %9 text/html %U http://www.falstad.com/scale/

Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Style.org: Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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