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NovaSolver

Indie hacker and developer building NovaSolver, a platform featuring over 1,000 engineering simulations. Passionate about physics, numerical analysis, and leveraging LLM APIs to automate web developme

Location Japan Joined Joined on  Personal website https://novasolver.jp/
Mapping Temperature Between Four Walls: 2D Steady Conduction by Hand
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Mapping Temperature Between Four Walls: 2D Steady Conduction by Hand

#engineering #science #2d #thermal
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6 min read
Getting the Front Wheels to Agree: Ackermann Steering Geometry Explained
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Getting the Front Wheels to Agree: Ackermann Steering Geometry Explained

#engineering #science #ackermann #mechanical
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5 min read
Why Your Accelerometer Lies Above Its Natural Frequency
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Why Your Accelerometer Lies Above Its Natural Frequency

#engineering #science #accelerometer #vibration
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6 min read
Will Your AGV Make It Back to the Charger? Modeling Mission Energy and SOC Margin
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Will Your AGV Make It Back to the Charger? Modeling Mission Energy and SOC Margin

#engineering #science #agv #energy
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5 min read
Predicting How Long a Sliding Surface Will Last: The Archard Wear Equation
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Predicting How Long a Sliding Surface Will Last: The Archard Wear Equation

#engineering #science #archard #materials
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5 min read
Sizing a Gas Absorption Column: NTU, HTU, and the Kremser Shortcut
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Sizing a Gas Absorption Column: NTU, HTU, and the Kremser Shortcut

#engineering #science #gas #chemistry
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5 min read
Why Weak Learners Beat Strong Ones: Inside the AdaBoost Algorithm
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Why Weak Learners Beat Strong Ones: Inside the AdaBoost Algorithm

#engineering #science #adaboost #computing
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5 min read
Sizing an Activated Sludge Reactor: The CSTR Mass Balance Engineers Actually Use
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Sizing an Activated Sludge Reactor: The CSTR Mass Balance Engineers Actually Use

#engineering #science #activated #environment
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6 min read
Why Your Print Warps: The Thermal Math Behind FDM, SLA, and DMLS
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Why Your Print Warps: The Thermal Math Behind FDM, SLA, and DMLS

#engineering #science #3d #manufacturing
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6 min read
Hitting the AUC/MIC Target: The Dosing Math Behind Antibiotic PK/PD
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Hitting the AUC/MIC Target: The Dosing Math Behind Antibiotic PK/PD

#engineering #science #antibiotic #biomedical
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6 min read
Taming Overshoot Without Losing Disturbance Rejection: A Look at Two-Degree-of-Freedom PI Control
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Taming Overshoot Without Losing Disturbance Rejection: A Look at Two-Degree-of-Freedom PI Control

#engineering #science #twodegreeoffreedom #controls
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5 min read
Reading an Aquifer Backward: What the Theis Solution Tells You From a Pump Test
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Reading an Aquifer Backward: What the Theis Solution Tells You From a Pump Test

#engineering #science #theis #geotechnical
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6 min read
Beat Frequency Explained: Why Two Nearly-Identical Tones Produce a Pulse
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Beat Frequency Explained: Why Two Nearly-Identical Tones Produce a Pulse

#engineering #science #beat #acoustics
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6 min read
Acceptance Sampling: How a Small Sample Decides the Fate of an Entire Lot
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Acceptance Sampling: How a Small Sample Decides the Fate of an Entire Lot

#engineering #science #acceptance #vv
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5 min read
Bayes' Theorem: Why a Positive Test Result Often Means Less Than You Think
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Bayes' Theorem: Why a Positive Test Result Often Means Less Than You Think

#engineering #science #math
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5 min read
The Normal Distribution and the Z-Score: Turning a Measurement Into a Probability
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The Normal Distribution and the Z-Score: Turning a Measurement Into a Probability

#engineering #science #math
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5 min read
How to Size an LED Series Resistor (and Why You Always Need One)
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How to Size an LED Series Resistor (and Why You Always Need One)

#engineering #science #led #em
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6 min read
The Wheatstone Bridge: Measuring Resistance by Hunting for Zero
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The Wheatstone Bridge: Measuring Resistance by Hunting for Zero

#engineering #science #wheatstone #em
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5 min read
The Venturi Flow Meter: Measuring Flow With Nothing But a Pressure Drop
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The Venturi Flow Meter: Measuring Flow With Nothing But a Pressure Drop

#engineering #science #fluid
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5 min read
Bragg's Law: How Crystals Turn X-Rays Into a Map of Atoms
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Bragg's Law: How Crystals Turn X-Rays Into a Map of Atoms

#engineering #science #braggs #optics
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5 min read
The Airy Disk: Why Diffraction Sets a Hard Limit on Every Lens and Mirror
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The Airy Disk: Why Diffraction Sets a Hard Limit on Every Lens and Mirror

#engineering #science #airy #optics
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5 min read
Organ Pipe Resonance: How Pipe Length and End Conditions Set the Note
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Organ Pipe Resonance: How Pipe Length and End Conditions Set the Note

#engineering #science #organ #acoustics
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5 min read
Helmholtz Resonator: Why a Bottle Hums at One Note When You Blow Across It
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Helmholtz Resonator: Why a Bottle Hums at One Note When You Blow Across It

#engineering #science #helmholtz #acoustics
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5 min read
Dynamic Viscosity: The Fluid Property That Decides How Fast Things Move
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Dynamic Viscosity: The Fluid Property That Decides How Fast Things Move

#engineering #science #dynamic #fluid
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5 min read
The Nusselt Number: Turning a Dimensionless Ratio into a Heat-Transfer Coefficient
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The Nusselt Number: Turning a Dimensionless Ratio into a Heat-Transfer Coefficient

#engineering #science #thermodynamics #thermal
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5 min read
Time Dilation in Special Relativity: Why a Moving Clock Runs Slow
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Time Dilation in Special Relativity: Why a Moving Clock Runs Slow

#engineering #science #time #physics
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5 min read
Wien's Displacement Law: Why Color Tells You Temperature
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Wien's Displacement Law: Why Color Tells You Temperature

#engineering #science #wiens #physics
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6 min read
Escape Velocity: The Speed That Frees You From a Planet's Gravity
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Escape Velocity: The Speed That Frees You From a Planet's Gravity

#engineering #science #escape #space
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5 min read
Kepler's Third Law: How to Find an Orbital Period From Distance Alone
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Kepler's Third Law: How to Find an Orbital Period From Distance Alone

#engineering #science #keplers #space
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5 min read
CSTR vs PFR: Why Two Ideal Reactors Need Very Different Volumes
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CSTR vs PFR: Why Two Ideal Reactors Need Very Different Volumes

#engineering #science #cstr #chemistry
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5 min read
The Chemical Equilibrium Constant: Where a Reversible Reaction Comes to Rest
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The Chemical Equilibrium Constant: Where a Reversible Reaction Comes to Rest

#engineering #science #chemical #chemistry
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5 min read
pH Calculation: Reading Acidity From Hydrogen-Ion Concentration
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pH Calculation: Reading Acidity From Hydrogen-Ion Concentration

#engineering #science #ph #chemistry
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5 min read
ADC Resolution and SNR: Why Every Bit Buys You 6 dB
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ADC Resolution and SNR: Why Every Bit Buys You 6 dB

#engineering #science #adc #controls
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6 min read
FFT Frequency Resolution: Why a Longer Recording Beats a Faster One
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FFT Frequency Resolution: Why a Longer Recording Beats a Faster One

#engineering #science #fft #controls
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5 min read
The Nyquist Sampling Theorem: Why Sample Rate Decides What You Can Hear
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The Nyquist Sampling Theorem: Why Sample Rate Decides What You Can Hear

#engineering #science #control #controls
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6 min read
Boundary Layer Thickness: The Thin Skin That Governs Drag
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Boundary Layer Thickness: The Thin Skin That Governs Drag

#engineering #science #boundary #fluid
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6 min read
Brinell Hardness: Reading a Material's Strength From a Dent
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Brinell Hardness: Reading a Material's Strength From a Dent

#engineering #science #brinell #structural
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5 min read
Composite Rule of Mixtures: Estimating Stiffness From Fibre and Matrix
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Composite Rule of Mixtures: Estimating Stiffness From Fibre and Matrix

#engineering #science #composite #structural
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5 min read
Entropy of Mixing: Why Gases Spread Out and Never Come Back
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Entropy of Mixing: Why Gases Spread Out and Never Come Back

#engineering #science #entropy #thermal
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5 min read
Logistic Regression: Turning a Linear Score into a Probability
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Logistic Regression: Turning a Linear Score into a Probability

#engineering #science #logistic #math
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5 min read
Linear Regression by Least Squares: Fitting the Best Straight Line to Data
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Linear Regression by Least Squares: Fitting the Best Straight Line to Data

#engineering #science #math
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5 min read
Solar Cell Fill Factor: The Number That Tells You How Good a Cell Really Is
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Solar Cell Fill Factor: The Number That Tells You How Good a Cell Really Is

#engineering #science #solar #environment
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5 min read
Wind Turbine Power: Why Output Scales With the Cube of Wind Speed
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Wind Turbine Power: Why Output Scales With the Cube of Wind Speed

#engineering #science #wind #environment
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5 min read
Solar Panel Power Output: How to Estimate What a Panel Actually Delivers
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Solar Panel Power Output: How to Estimate What a Panel Actually Delivers

#engineering #science #solar #environment
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5 min read
Optical Fiber Numerical Aperture: How Much Light a Fiber Can Catch
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Optical Fiber Numerical Aperture: How Much Light a Fiber Can Catch

#engineering #science #optical #optics
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5 min read
Malus's Law: How a Polarizer Decides How Much Light Gets Through
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Malus's Law: How a Polarizer Decides How Much Light Gets Through

#engineering #science #maluss #optics
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5 min read
Surface Tension and Capillary Action: Why Liquids Climb Thin Tubes
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Surface Tension and Capillary Action: Why Liquids Climb Thin Tubes

#engineering #science #surface #fluid
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5 min read
Hydrostatic Pressure: Why Depth Alone Decides the Squeeze
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Hydrostatic Pressure: Why Depth Alone Decides the Squeeze

#engineering #science #hydrostatic #fluid
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5 min read
Archimedes' Principle: Why Things Float, and How to Calculate It
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Archimedes' Principle: Why Things Float, and How to Calculate It

#engineering #science #archimedes #fluid
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5 min read
Faraday's Law of Induction: How a Changing Magnetic Field Makes Voltage
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Faraday's Law of Induction: How a Changing Magnetic Field Makes Voltage

#engineering #science #faradays #em
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5 min read
Coulomb's Law: The Inverse-Square Rule Behind Every Electric Force
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Coulomb's Law: The Inverse-Square Rule Behind Every Electric Force

#engineering #science #coulombs #em
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5 min read
The RC Time Constant: Why Circuits Take Time to Settle
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The RC Time Constant: Why Circuits Take Time to Settle

#engineering #science #rc #em
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5 min read
Thevenin's Theorem: Collapsing a Whole Circuit Into One Source and One Resistor
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Thevenin's Theorem: Collapsing a Whole Circuit Into One Source and One Resistor

#engineering #science #thevenin #em
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5 min read
Torsional Vibration: The Twisting Resonance Hidden in Every Rotating Shaft
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Torsional Vibration: The Twisting Resonance Hidden in Every Rotating Shaft

#engineering #science #torsional #vibration
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5 min read
Moment of Inertia: The Rotational Twin of Mass
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Moment of Inertia: The Rotational Twin of Mass

#engineering #science #moment #physics
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5 min read
Circular Motion: Why Going Around in Circles Is Never Effortless
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Circular Motion: Why Going Around in Circles Is Never Effortless

#engineering #science #circular #physics
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5 min read
The Simple Pendulum: Why Its Period Depends Only on Length
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The Simple Pendulum: Why Its Period Depends Only on Length

#engineering #science #simple #physics
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5 min read
Friction on an Inclined Plane: Will the Block Slide or Stay Put?
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Friction on an Inclined Plane: Will the Block Slide or Stay Put?

#engineering #science #friction #physics
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5 min read
Flywheel Energy Storage: How a Spinning Mass Banks Kinetic Energy
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Flywheel Energy Storage: How a Spinning Mass Banks Kinetic Energy

#engineering #science #flywheel #mechanical
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5 min read
Belt Drive Power Transmission: How Friction Sets the Tension and the Power
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Belt Drive Power Transmission: How Friction Sets the Tension and the Power

#engineering #science #belt #mechanical
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5 min read
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