14 New Gizmos Released!

We are pleased (and more than a bit relieved) to announce the arrival of 14 new Gizmos. These Gizmos span a variety of topics, from electrostatics to statistics to human health and perception.

Several of the new Gizmos complement other recently released simulations. For example, the Bohr Model of Hydrogen Gizmo is a perfect follow-up to the Bohr Model: Introduction Gizmo released last week. Advanced Circuits provides some challenging problems for students who have mastered the Circuits Gizmo.

Evolution has been a hot topic in the news media lately, and we are proud of our two new Gizmos that explore the connections between evolution and population genetics: Hardy-Weinberg Equilibrium and Microevolution.

We also have great news for any math teachers who have felt neglected by our science focus this year. Polling: Neighborhood, Populations and Samples and the soon to be completed Polling: City provide a great sequence in statistics and probability. Logarithmic Functions: Translating and Scaling provides a more advanced follow-up to our current logarithm activities. And don't forget the math applications that can be found in many of our science Gizmos!

Here is a complete list of our new Gizmos:

• Polling: Neighborhood
• Populations and Samples
• Logarithmic Functions: Translating and Scaling
• Colligative Properties
• Bohr Model of Hydrogen
• Advanced Circuits
• Pith Ball Lab
• Torque and Moment of Inertia
• Hardy-Weinberg Equilibrium
• Microevolution
• Sound Beats and Sine Waves
• Hearing: Frequency and Volume
• Dye Elimination
• Drug Dosage