Interholz Raimann GmbH
Germany. Gang rip saws, selective rip saws, optimizing saws, double arbor saws, length cutting saws, cross cutting saws / pendulum saws, veneer defecters and patchers.
http://www.raimann.com/

Smart Pendulum
Java applet explores a pendulum with rope of variable length. The solution implements 4-th order Runge-Kutta method for differential equations.
http://odin.prohosting.com/~evgenik1/pend.htm

Delta International Woodworking Machines
Table saws, lathes, sanding machines, drill presses, air cleaner, band saws, boring machine, downdraft tables, dust collectors, grinders, jointers, miter saws, mortiser, planers, radial saws, sanders, scroll saws, stock feeders, wood shapers.
http://www.deltawoodworking.com/

Sawing Systems Inc.
The Stone and Concrete Industries' Source for Quality Sawing, Shaping and Polishing Equipment.
http://www.sawingsystems.com/

Pendulum Energy
Pendulum Energy has helped its clients map out processes and streamline those processes key to increasing productivity and profitability
http://www.pendulumenergy.com

Alliance Machinery
Woodworking machinery tools and supplies, from Adwood, Delmac, Flexicam, Northtech, SAC: machine centers, panel saws, radial arm saws, moulders, grinders, wide belt sanders and more.
http://alliancemachinery.com/

Pacific Trail Manufacturing
Pacific Trail Manufacturing specializes in highly accurate crosscut unit saw systems, deck saws, paper roll saws, 11BC saw chains, 3/4" pitch saw bars, and package saw retrofits that service pallet manufacturers, reload and reman operations, manufactured housing, and other wood products-related industries.
http://www.ptmi.net

Northfield Foundry and Machine Co.
Bandsaws, shapers, table saws, surfacers, jointers, feeders, stackers, radial saws, and under table cutoff saws for industrial use.
http://www.northfieldwoodworking.com/

The Simple Plane Pendulum
This applet illustrates the simple plane pendulum, with or without damping. The user enters the damping coefficient and initial conditions, and the applet animates the pendulum's motion and plots the angular velocity versus the angle. Such a plot is called a phase portrait.
http://www.iopb.res.in/~vshenoi/scienceday/fundemoapplets/JAVA/pendulum/pendulum2.html

CTD Machines, Inc.
Mitre saws, double mitre saws, and automatic cutoff saws.
http://www.ctdsaw.com/