Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

Simple Harmonic (and non-harmonic) Motion (some Saturday entertainment)

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread		 This topic is archived.
Home » Discuss » General Discussion Donate to DU
 
Playinghardball Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Oct-08-11 12:23 PM
Original message
Simple Harmonic (and non-harmonic) Motion (some Saturday entertainment)
The period of a pendulum is proportional to the square root of the length of the line suspending the weight - i.e., the longer the pendulum, the slower it swings.

Harvard students built a device with a series of 15 pendulums in a row, each one slightly longer than its neighbor, then set them in motion and filmed the result.

The resulting patterns in this short video are quite fascinating to watch.
Read the article before starting to watch the video.


http://sciencedemonstrations.fas.harvard.edu/icb/icb.do?keyword=k16940&pageid=icb.page80863&pageContentId=icb.pagecontent341734&state=maximize&view=view.do&viewParam_name=indepth.html#a_icb_pagecontent341734
Printer Friendly | Permalink |  | Top
Speck Tater Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Oct-08-11 12:27 PM
Response to Original message
1. Very hypnotic. nt
Printer Friendly | Permalink |  | Top
 
bbgrunt Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Oct-08-11 12:36 PM
Response to Original message
2. neat. thanks for posting.
Printer Friendly | Permalink |  | Top
 
bemildred Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Oct-08-11 01:00 PM
Response to Original message
3. Seems like there is some sort of pattern that it follows.
Had me thinking of bifurcation charts at times, or Wolfram's little DFAs.

(Deterministic Finite Automata)
Printer Friendly | Permalink |  | Top
 
DU AdBot (1000+ posts) Click to send private message to this author Click to view this author's profile Click to add this author to your buddy list Click to add this author to your Ignore list Wed May 01st 2024, 11:06 AM
Response to Original message
Advertisements [?]
 Top

Home » Discuss » General Discussion Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators

Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC