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Chemistry & Physics diagram templates
Energy diagrams, circuits, free-body, optics, reaction networks.
Engineering — Euler Buckling
Critical load for a slender column.
LaTeX (KaTeX)Engineering — Fracture Mechanics
Stress intensity and fracture toughness.
LaTeX (KaTeX)Engineering — Fatigue
Failure under cyclic loading (S–N behaviour).
LaTeX (KaTeX)Engineering — Heat Exchangers
Heat duty and the log-mean temperature difference.
LaTeX (KaTeX)Engineering — Pump Power
Hydraulic power and efficiency of a pump.
LaTeX (KaTeX)Engineering — Feedback Control
Closed-loop transfer function and error.
LaTeX (KaTeX)Engineering — Sampling & Nyquist
The sampling theorem and aliasing.
LaTeX (KaTeX)Engineering — Gain in Decibels
Power and voltage gain on the dB scale.
LaTeX (KaTeX)Engineering — RC Filters
Cut-off frequency of a first-order filter.
LaTeX (KaTeX)Engineering — Thermal Stress
Stress from constrained thermal expansion.
LaTeX (KaTeX)Chemistry — Crystal Structures
Atoms per unit cell and packing fraction.
LaTeX (KaTeX)Chemistry — Crystal Defects
Vacancies, interstitials and their temperature dependence.
LaTeX (KaTeX)Chemistry — Semiconductor Doping
n- and p-type doping and conductivity.
LaTeX (KaTeX)Chemistry — Polymer Molar Mass
Number- and weight-average molar mass and dispersity.
LaTeX (KaTeX)Chemistry — Glass Transition
The glass transition of amorphous polymers.
LaTeX (KaTeX)Chemistry — Galvanic Corrosion
Electrochemical corrosion of coupled metals.
LaTeX (KaTeX)Chemistry — Langmuir Adsorption
Monolayer adsorption isotherm.
LaTeX (KaTeX)Chemistry — Cracking of Hydrocarbons
Breaking long alkanes into useful products.
LaTeX (KaTeX)Chemistry — Classes of Material
The main families of engineering materials.
Graphviz (DOT)Chemistry — Iron & Steel Making
From iron ore to steel.
Graphviz (DOT)Chemistry — Chlor-alkali Process
Electrolysis of brine for industrial chemicals.
Graphviz (DOT)Chemistry — Types of Battery
Primary, secondary and fuel cells.
Graphviz (DOT)Chemistry — Synthesis Route Network
Functional-group interconversions in synthesis.
Cytoscape (Network)Chemistry — Acetonitrile (3D, XYZ)
A common polar aprotic solvent.
3D Molecules (3Dmol)Chemistry — Ethylamine (3D, XYZ)
A simple primary amine.
3D Molecules (3Dmol)Chemistry — Formamide (3D, XYZ)
The simplest amide, a planar molecule.
3D Molecules (3Dmol)Engineering — Circuit: rectifier with smoothing
A diode rectifier with a smoothing capacitor.
Circuit schematicEngineering — Circuit: Darlington pair
Two transistors giving very high current gain.
Circuit schematicEngineering — Logic: full subtractor
Difference and borrow for three input bits.
Digital logic (gates / K-map / truth table)Engineering — Logic: 3-bit Parity
An XOR chain computing the parity bit.
Digital logic (gates / K-map / truth table)Engineering — Free-body: column under load
Axial compression of a vertical column.
Free-body diagramPhysics — Free-body: cable car
A car supported on an inclined cable.
Free-body diagramMedical Physics — Radiotherapy
Fractionated radiation dose to treat tumours.
LaTeX (KaTeX)Medical Physics — Effective Half-life
Combining physical decay and biological clearance.
LaTeX (KaTeX)Medical Physics — Doppler Ultrasound
Measuring blood-flow velocity.
LaTeX (KaTeX)Medical Physics — CT Imaging
Reconstructing images from X-ray projections.
LaTeX (KaTeX)Medical Physics — Defibrillator
A capacitor discharge that resets the heart.
LaTeX (KaTeX)Medical Physics — Sound & Hearing
The decibel scale and the audible range.
LaTeX (KaTeX)Medical Physics — Radiation Shielding
Attenuating ionising radiation.
LaTeX (KaTeX)Medical Physics — Dosimetry & Safety
Equivalent dose and radiation protection.
LaTeX (KaTeX)Chemistry — NPK Fertilisers
The three primary plant macronutrients.
LaTeX (KaTeX)Chemistry — Maillard Reaction
The browning reaction of cooking.
LaTeX (KaTeX)Chemistry — Saponification
Making soap by base hydrolysis of fat.
LaTeX (KaTeX)Chemistry — Energy in Food
Measuring food energy by calorimetry.
LaTeX (KaTeX)Chemistry — Food Preservatives
Chemical strategies to slow spoilage.
LaTeX (KaTeX)Chemistry — Soil Nutrients
Macro- and micronutrients in soil.
LaTeX (KaTeX)Chemistry — Water Quality
Indicators of water pollution.
LaTeX (KaTeX)Chemistry — The Lime Cycle
Limestone, quicklime and slaked lime.
LaTeX (KaTeX)Chemistry — Crop Rotation
Rotating crops to maintain soil fertility.
Graphviz (DOT)Chemistry — Irrigation Methods
Ways of supplying water to crops.
Graphviz (DOT)Chemistry — Food Processing & Preservation
Methods that extend shelf life.
Graphviz (DOT)Chemistry — Soil Types
Soil texture and its properties.
Graphviz (DOT)Chemistry — Types of Pesticide
Pesticides classified by target.
Graphviz (DOT)Chemistry — Urea (3D, XYZ)
The first organic compound synthesised from inorganics.
3D Molecules (3Dmol)Chemistry — Acetic Acid (3D, XYZ)
The acid of vinegar in three dimensions.
3D Molecules (3Dmol)Forensics — Blood Spatter Analysis
Angle of impact from the shape of a bloodstain.
LaTeX (KaTeX)Forensics — Speed from Skid Marks
Estimating vehicle speed from braking distance.
LaTeX (KaTeX)Forensics — Estimating Time of Death
Body cooling by Newton's law.
LaTeX (KaTeX)Forensics — Ballistics
Energy, momentum and recoil of a projectile.
LaTeX (KaTeX)Forensics — DNA Profiling
Short tandem repeats and match probability.
LaTeX (KaTeX)Forensics — Luminol Test
Chemiluminescent detection of trace blood.
LaTeX (KaTeX)Forensics — Toxicology Screening
Detecting drugs by chromatography and mass spectrometry.
LaTeX (KaTeX)Forensics — Fingerprint Development
Chemistry of revealing latent fingerprints.
LaTeX (KaTeX)Sports Science — Levers in the Body
The three classes of biological lever.
LaTeX (KaTeX)Sports Science — Impulse in Sport
Why follow-through and cushioning matter.
LaTeX (KaTeX)Sports Science — Projectiles in Sport
Optimising range of a thrown or struck object.
LaTeX (KaTeX)Environment — Air Quality Index
Pollutants behind the air quality index.
LaTeX (KaTeX)Environment — Dissolved Oxygen
Measuring oxygen in water (Winkler method).
LaTeX (KaTeX)Environment — Gas Chromatography
Separating volatile mixtures.
LaTeX (KaTeX)Environment — pH Electrode
How a glass electrode measures pH.
LaTeX (KaTeX)Environment — Geiger Counter
Measuring ionising radiation.
LaTeX (KaTeX)Environment — Measuring Wind
Dynamic pressure and wind-speed sensors.
LaTeX (KaTeX)Environment — Light Meter
Illuminance and the inverse-square law.
LaTeX (KaTeX)Environment — Sound Level Meter
Measuring noise on the decibel scale.
LaTeX (KaTeX)Forensics — Toxicology Workflow
Screening and confirming toxins.
Graphviz (DOT)Environment — Types of Pollution
Categories of environmental pollution.
Graphviz (DOT)Environment — Waste Hierarchy
The waste-management hierarchy.
Graphviz (DOT)Environment — Environmental Monitoring
What and how we monitor.
Graphviz (DOT)Environment — Carbon Capture
Approaches to capturing and storing CO2.
Graphviz (DOT)Chemistry — Water (3D, XYZ)
The bent H₂O molecule as 3D ball-and-stick. Drag to rotate.
3D Molecules (3Dmol)Chemistry — Benzene (3D, XYZ)
The planar aromatic ring C₆H₆. Drag to rotate.
3D Molecules (3Dmol)Physics — Free-body: Atwood machine
Two masses over a frictionless pulley sharing one cord tension.
Free-body diagramPhysics — Free-body: person in a lift
Apparent weight of a person in an accelerating elevator.
Free-body diagramChemistry — Acetone (3D, XYZ)
The simplest ketone, (CH₃)₂C=O. Drag to rotate.
3D Molecules (3Dmol)Physics — Circuit: voltage divider
Two resistors set an output fraction of the supply.
Circuit schematicPhysics — Circuit: LED with series resistor
A current-limiting resistor protects an LED.
Circuit schematicPhysics — Circuit: RC low-pass filter
A resistor and capacitor attenuate high frequencies.
Circuit schematicPhysics — Circuit: RC high-pass filter
Swapping R and C passes high frequencies instead.
Circuit schematicPhysics — Circuit: inverting amplifier
An op-amp with feedback sets a negative gain.
Circuit schematicPhysics — Circuit: non-inverting amplifier
Feedback to the inverting input sets a gain above one.
Circuit schematicPhysics — Circuit: Zener regulator
A reverse-biased Zener diode clamps the output voltage.
Circuit schematicPhysics — Circuit: capacitor charging
Closing the switch charges C through R (RC transient).
Circuit schematicPhysics — Logic: 4-to-2 priority encoder
Encodes the highest active input line into two bits.
Digital logic (gates / K-map / truth table)Physics — Logic: 1-bit comparator
Tests two bits for equality and which is greater.
Digital logic (gates / K-map / truth table)Physics — Logic: BCD invalid-code detector
Flags binary inputs above 9 (illegal BCD codes).
Digital logic (gates / K-map / truth table)Physics — Logic: XOR from NAND gates
The universal NAND gate builds an exclusive-OR.
Digital logic (gates / K-map / truth table)Physics — Logic: AND from NAND gates
A NAND followed by a NAND inverter gives AND.
Digital logic (gates / K-map / truth table)Physics — Logic: OR from NAND gates
Inverting both inputs into a NAND yields OR.
Digital logic (gates / K-map / truth table)Physics — Logic: 1-to-2 demultiplexer
Routes one data input to one of two outputs by a select bit.
Digital logic (gates / K-map / truth table)Chemistry — Exothermic vs Endothermic
Comparing the two energy directions of reactions.
Venn / Euler