Explore Simulations
Discover interactive simulations and professional tools for every level
Featured Simulations
Greenhouse Heat Pump + Thermal Storage Planner
Professional greenhouse decarbonization planner that estimates heat pump sizing, thermal storage capacity, peak-load shaving, operating-cost savings, and carbon reduction. Features animated heating-load profiles, COP vs temperature curves, storage charge/discharge cycles, cost comparison waterfalls, and carbon savings gauges. Supports multiple climate zones, covering materials, crop setpoints, and storage media.
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Medical Imaging Room Cooling Load Tool
Free medical imaging room cooling load calculator for MRI, CT, PET/CT, and X-ray suites. Estimate equipment heat output, occupancy gains, lighting loads, ventilation requirements per ASHRAE 170, peak vs average load profiles, cooling safety margins, and design summary with exportable report. Includes animated room cross-section, cooling load donut chart, equipment heat gauge, temperature distribution, and capacity timeline visualizations.
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Biosolids Processing Option Comparator
Professional municipal biosolids screening tool comparing processing pathways including anaerobic digestion, aerobic digestion, thermal drying, composting, alkaline stabilization, incineration, pyrolysis, and land application. Features throughput input on wet/dry ton basis, moisture content tracking, animated process flow diagrams, mass balance Sankey visualization, energy balance with biogas recovery, hauling cost estimation, GHG emissions waterfall chart, product end-use classification (Class A/B), multi-criteria radar ranking, and exportable engineering comparison reports. Based on EPA Part 503 regulations and BEAM methodology.
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RO Recovery / Brine / Energy Tradeoff Tool
Professional reverse-osmosis planning tool showing how recovery ratio changes affect brine volume, specific energy consumption, and product water output. Features feed water TDS input (seawater/brackish/tap presets), recovery ratio control (10-95%), brine volume and concentration estimates, SEC calculations with energy recovery device modeling, product water quality prediction, pretreatment sensitivity analysis, multi-stage RO configuration, animated membrane flow diagram with particle transport, recovery vs. energy curve, brine concentration waterfall chart, mass balance Sankey diagram, osmotic pressure gauge visualization, and cost estimation with export report.
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Photosynthesis Lab Simulator
Free photosynthesis rate simulator. Adjust light intensity, CO2 concentration, and temperature to measure oxygen production rate. Identify limiting factors and optimal growing conditions. Perfect for biology and botany students. Try it free!
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Seasons Simulator - Earth Axial Tilt & Day Length
Free seasons simulator showing how Earth's 23.5° axial tilt creates seasons. Visualize solstices, equinoxes, day length changes, and sunlight angles throughout the year.
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PID Controller Tuning Simulator
Free PID controller tuning simulator. Adjust proportional, integral, and derivative gains to optimize step response. Visualize overshoot, settling time, and steady-state error in real-time. Perfect for control engineering students. Try it free!
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Wood Beam Span Calculator — Lumber Sizing per NDS & IRC
NDS 2024-compliant wood beam span calculator with species/grade selection, bending/shear/deflection checks, adjustment factors, and animated beam visualization. Supports lumber, glulam, and LVL members.
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PLC Ladder Logic Simulator: Free Interactive Ladder Diagram Builder
Build and simulate PLC ladder logic diagrams with animated power flow, timers, counters, and I/O visualization. Free online tool for learning industrial automation programming.
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Nuclear Reactor Power Plant Simulator
Interactive nuclear reactor power plant simulator covering 8 reactor types: PWR, BWR, CANDU, SMR, micro reactors, thorium MSR, sodium-cooled fast breeders, and Gen IV HTGR. An advanced-engineering-tool for nuclear power analysis with real-time neutronics, thermal-hydraulics, decay heat modeling, LCOE economics, and animated reactor schematics.
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Sorting Algorithm Visualizer
Free sorting algorithm visualizer. Compare bubble sort, merge sort, quick sort, and heap sort step-by-step. Track comparisons, swaps, and time complexity O(n log n) vs O(n²).
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Cell Division Mitosis Simulation - Interphase vs Prophase Comparison
Explore cell division with our free interactive mitosis simulation. Step through each phase and visualize chromosome separation. Perfect for biology students. Try it now!
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Bridge Stress Simulator
Explore bridge stress with our free interactive truss simulator. Adjust loads and bridge types to visualize tension and compression. Perfect for engineering students. Try it now!
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Sound Wave Simulator with Real Audio - Hear & See Waves
Explore sound waves with our free audio simulator. Adjust frequency, amplitude, and waveform to hear and see waves in real-time. Perfect for physics students. Try it now!
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Fluid Pressure and Flow Simulator
Free fluid pressure and flow simulator. Adjust pipe velocity, cross-section area, and elevation to see Bernoulli's principle in action. Calculate pressure changes and flow continuity. Perfect for physics and engineering students. Try it free!
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Mendelian Genetics Breeding Simulator
Explore Mendelian genetics with our free interactive breeding simulation. Adjust traits and generations to visualize inheritance patterns. Perfect for biology students. Try it now!
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