Now Coeli Stella 2000 lets you examine realistic skies in real time while offering an observing log, a live ephemeris, a location browser, and a sophisticated search embracing planets, comets, DSOs, and more than 16,000 stars. This version incorporates a number of bug fixes, in addition to providing a preview of several version 4.0 enhancements. Now Crocodile Clips 3 Elementary introduces the basics of electricity, sound, and mechanics. Students can use ready-made worksheets or design their own circuits and simulate them. You can create virtual experiments from a variety of components, whose values can be changed with the click of a mouse.
Animation reveals invisible concepts such as voltage, force, torque, current, and charge.
Motors turn, masses accelerate, springs oscillate, and lamps light up. Electrical experiments include internal resistance, Ohm's law, Kirchoff's laws, measuring resistance, and power in electric circuits. Sound experiments include period and frequency, beats, intensity and amplitude, and interference. Mechanical experiments include Hooke's Law, speed acceleration, Newton's laws, combining forces, motion around an axis, rotational inertia, work and energy, kinetic energy, conservation of mechanical energy, and many more.