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Discover interactive simulations and professional tools for every level
Featured Simulations
Combined Axial & Bending Stress Calculator
Free combined stress calculator for axial load and bending. Calculate normal stress distribution, neutral axis shift, and maximum stress for any cross-section. Visualize tension and compression zones. Perfect for structural engineering students. Try it free!
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Fatigue Life S-N Curve Analyzer
Free S-N curve fatigue life calculator. Predict cycles to failure for steel, aluminum, and titanium under cyclic loading. Plot S-N curves, apply Goodman correction, and estimate endurance limits. Perfect for mechanical engineers. Try it free!
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Mohr's Circle Calculator - 2D/3D Stress Analysis
Free Mohr's Circle calculator for 2D and 3D stress analysis. Find principal stresses and maximum shear stress instantly. Supports plane stress, plane strain, and triaxial stress states. Perfect for engineering students. Try it free!
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Principal Stress & Von Mises Calculator
Explore principal stresses with our free interactive calculator. Adjust stress components and visualize Von Mises yield criteria. Perfect for mechanical engineers. Try it now!
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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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