About Virtlab
Carl Spitzweg (1808-1885) "Der Alchemist"

 Virtlab Demonstration
Pietro Longhi (1701 - 1785) "The Alchymist"

Do Circuits

DoCircuits is an online virtual lab for working with circuits online. It enables you to:

  • Work with realistic simulations of devices such as function generators and oscilloscopes

  • Have fun building and burning circuits.

  • Share your designs with your friends and learn together.

For the inquisitive minds, there is also a new circuit application every week under the "One circuit a week" initiative. Explore it in more detail at www.docircuits.com

About Sparsha Learning Technologies

DoCircuits is a product of Sparsha Learning Technologies. Sparsha is an education technology partner of Virtlab.com. They have developed learning aids that embrace the same education paradigms as Virtlab.com itself.

Return To The Virtlab Main Page

Virtlab is based on the simulations and guided exercises found in N. Simonson & Company's pioneering text: Dynamic Models in Chemistry by Daniel E. Atkinson (University of California, Los Angeles, CA), Douglas C. Brower, and Ronald W. McClard (Reed College, Portland, OR). Laboratories are also under development for Dynamic Models in Physics (Volume I: Mechanics) by Frank Potter (University of California, Irvine, CA), and Charles W. Peck (California Institute of Technology, Pasadena, CA), and Dynamic Models in Biochemistry by Daniel E. Atkinson (University of California, Los Angeles, CA), Steven G. Clarke (University of California, Los Angeles, CA), and Douglas C. Rees (California Institute of Technology, Pasadena, CA)

Virtlab's browser requirements are quite high. You must have a recent version of the Flash Plugin (version 8 or higher) installed and Javascript and cookies must be enabled. This is the default situation in most browsers. The site has been tested on recent versions of Internet Explorer, Firefox, Chrome, and Safari but should work on most browsers. We have been unsuccessful in getting Virtlab to work successfully with the Opera Internet Browser. We will continue to seek resolution to remaining browser incompatibilities.

Copyright (c) 1989 - 2011 N. Simonson & Company. All rights reserved. No part of this website may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise without the prior permission of the publisher. Javascript DHTML API by Walter Zorn, http://www.walterzorn.com, Copyright (c) 2002-2003 Walter Zorn. All rights reserved. SWFObject Flash Player Detection and Embed by Geoff Sterns, http://blog.deconcept.com/swfobject/, Copyright (c) 2006 Geoff Stearns. Walter Zorn's website no longer exists. Word has reached us that he is deceased. We are deeply in his debt!

A new exercise Simple and Fractional Distillation now exists. Other recent simulations include explorations of stoichiometry (moles, mole fractions, limiting reagents), the Ideal Gas Law and the Equation of State, Charles Law, Boyles Law, Raoults Law, and acidic dissociation (including isoelectric points). Stoichiometry is an important subject and Charle's law, Boyle's Law, together with Raoult's Law and acid base titrations are important matters. Daltons Law of Partial Pressures, sometimes called Dalton's Law of partial pressures play crucial roles can help in understanding fractional distillation. dalton's law of partial pressures (daltons law of partial pressures) should be understood by all students. Along with fractional distillation. Will you be ready for acid base titration or acid base titrations. We hope so. And don't forget or stoichiometry exercises.