LII.org (Home) About LII     IPL.org     Suggest a Site     Subscribe to New This Week     Contact
Librarians' Internet Index - Websites You Can Trust

Search Help


Size and Scale

email this email this page



 Websites presented in alphabetical order

MegaPenny Project view detail comment email this

A site that helps to visualize extremely large numbers, using the common penny. For each quantity, the value, width (side-by-side), height (stacked), thickness, weight, and area (laid flat) are provided. There are also a table of very big numbers, a bonus section ( MegaMoon ) illustrating how large 1,000,000 cows would be, and related resources.
http://kokogiak.com/megapenny/
Topics: Mathematics, Science, Science
Last updated Sep 19, 2002


Powers Of Ten view detail comment email this

"Soar through space starting at 10 million light years away from the Milky Way down through to a single proton in Florida in decreasing powers of ten (orders of magnitude)." Controls let the user move to any stage; exponential notation and distance are shown at each stage to aid in understanding and comparing sizes of things in the world and the universe. From the Florida State University series Molecular Expressions: Science, Optics & You .
http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10/
Topics: Astronomy, Mathematics, Science, Science
Last updated Nov 6, 2001


A View from the Back of the Envelope view detail comment email this

"These pages are about approximation, and some of the fun it enables." Examples, exercises, and links to help you grasp concepts of magnitude and scale, such as large and small numbers, the size of the world, and expressions of length, area, volume, and speed. There are sections on simplifying numbers, exponential notation, Fermi problems, using your body as a ruler, and other ways to help visualize size and scale.
http://www.vendian.org/envelope/
Topics: Astronomy, Science, Science
Last updated May 23, 2002




Home | About | IPL.org | Suggest a Site | New This Week | Contact

Copyright © 2009, Librarians' Internet Index, LII. All rights reserved. Financial support for LII (Librarians' Internet Index) comes from the The iSchool at Drexel, College of Information Science and Technology and the IPL Consortium. LII is hosted by The iSchool at Drexel, College of Information Science and Technology.