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Software

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Collection4 items

01Collaboration & PR Workflow

02Branching & Merging

03Software · L2 · Git & Dev Workflow: Resolving a Merge Conflict

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Software

Software · L2 · Git & Dev Workflow

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Note~92 words · 1 min

When Git Can't Auto-Merge A conflict means two branches changed the same lines and Git needs a human to decide the outcome. It marks the disputed section directly in the file rather than guessing. Staging a file with `git add` after editing

Software

Software · L2 · Git & Dev Workflow: Resolving a Merge Conflict

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Flowchart13 objects

Software

Software · L2 · Git & Dev Workflow: Resolving a Merge Conflict · flowchart

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Flashcards10 cards

What is the difference between `git fetch` and `git pull`?1 / 10

`git fetch` downloads remote changes into the remote-tracking branch but does NOT change your working directory. `git pull` = `git fetch` + `git merge` (or rebase with `--rebase`). Fetching first lets you review changes before integrating.

Software

Collaboration & PR Workflow

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Flashcards10 cards

What is a fast-forward merge?1 / 10

When the target branch has no new commits, Git simply moves its pointer forward to the source branch's tip, creating no merge commit.

Software

Branching & Merging

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Quiz5 questions

What does the `=======` marker separate inside a conflicted file?

ATwo unrelated filesBYour current branch's version from the incoming branch's versionCStaged changes from unstaged changesDCommit messages from diffs

Software

Software · L2 · Git & Dev Workflow: Resolving a Merge Conflict

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Mathematics

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Collection1 items

01Mathematics · L4 · Probability Foundations

Mathematics

Mathematics · L4 · Probability Distributions

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Flashcards10 cards

State the three Kolmogorov axioms of probability.1 / 10

1) P(A) ≥ 0 for all events A. 2) P(Ω) = 1 (the sample space has probability 1). 3) For mutually exclusive events: P(A₁ ∪ A₂ ∪ …) = ΣP(Aᵢ). All other probability rules follow from these.

Mathematics

Mathematics · L4 · Probability Foundations

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Collection8 items

01Mathematics · L2 · Integers and Negative Numbers

02Mathematics · L2 · Introduction to Algebra

03Mathematics · L2 · Fractions, Decimals, and Percents

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Mathematics

Mathematics · L2 · Pre-Algebra & Ratios

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Collection10 items

01Normal Distribution: exp(−(x−μ)²/(2σ²))

02Linear Regression: y = m·x + b

03Exponential Decay: y = e^(−k·x)

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Mathematics

Mathematics · L3 · Statistics

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Collection21 items

01Mathematics · L3 · Right-Triangle Trigonometry (SOH-CAH-TOA)

02Mathematics · L3 · The Unit Circle & Special Angles

03Mathematics · L3 · Law of Sines & Cosines

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Mathematics

Mathematics · L3 · Trigonometry

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Collection16 items

01Mathematics · L1 · 2D Shapes & Their Attributes

02Mathematics · L1 · Equal Parts: Halves, Thirds & Quarters

03Mathematics · L1 · Capacity & Volume: More, Less or Same

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Mathematics

Mathematics · L1 · Shapes, Fractions & Measurement

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Physics

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Plot1 plot · 1 param

Physics

Driven Oscillator Amplitude Response Near Resonance

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Collection4 items

01Physics · L1 · Springs & Stretchy Things

02Physics · L1 · Springs & Stretchy Things

03Physics · L1 · Squeezing a Pogo Stick Spring

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Physics

Physics · L1 · Springs & Stretchy Things

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Collection4 items

01Physics · L5 · Superconductivity — BCS Theory & the Meissner Effect

02Physics · L5 · Superconductivity: BCS Theory and the Meissner Effect

03Physics · L5 · Superconducting Response to an External Magnetic Field

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Physics

Physics · L5 · Superconductivity — BCS Theory & the Meissner Effect

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Collection5 items

01Physics · L4 · Fluid Mechanics

02Physics · L4 · Fluid Mechanics

03Physics · L4 · Fluid Mechanics: Bernoulli's equation, continuity, and viscous flow

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Physics

Physics · L4 · Fluid Mechanics

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Collection4 items

01Physics · L1 · Wind & Moving Air: Kites, Sails & Pinwheels

02Physics · L1 · Wind & Moving Air

03Physics · L1 · How Wind Fills a Sail

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Physics

Physics · L1 · Wind & Moving Air: Kites, Sails & Pinwheels

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Collection4 items

01Physics · L1 · Gravity & Falling

02Physics · L1 · Gravity & Falling

03Physics · L1 · What Happens When You Drop Something

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Physics

Physics · L1 · Gravity & Falling

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Chemistry

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MoleculeCCO

Chemistry

Chemistry · L3 · Ethanol (C₂H₅OH)

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Collection7 items

01Chemistry · L5 · Supramolecular Chemistry: Foundations

02Chemistry · L5 · Supramolecular Chemistry: Preorganization & Design

03Chemistry · L5 · Supramolecular Chemistry: Host–Guest Recognition & Preorganization

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Chemistry

Chemistry · L5 · Supramolecular Chemistry

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Collection5 items

01Chemistry · L5 · Statistical Thermodynamics

02Chemistry · L5 · Statistical Thermodynamics: Boltzmann Distribution, Partition Functions & Entropy

03Chemistry · L5 · Boltzmann Populations: Low T vs High T

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Chemistry

Chemistry · L5 · Statistical Thermodynamics

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Collection4 items

01Chemistry · L4 · The Steady-State Approximation

02Chemistry · L4 · The Steady-State Approximation

03Chemistry · L4 · Steady-State Approximation vs the Rate-Determining-Step Shortcut

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Chemistry

Chemistry · L4 · The Steady-State Approximation

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Collection4 items

01Chemistry · L1 · Why a Candle Burns

02Chemistry · L1 · Why a Candle Burns

03Chemistry · L1 · The Three Things a Flame Needs

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Chemistry

Chemistry · L1 · Why a Candle Burns

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Collection4 items

01Chemistry · L4 · Buffer Calculations and Capacity

02Chemistry · L4 · Buffer Calculations and Capacity: Henderson–Hasselbalch, worked pH calculations, and capacity

03Chemistry · L4 · Buffer Response to Added Strong Acid or Base

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Chemistry

Chemistry · L4 · Buffer Calculations and Capacity

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Biology

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Flowchart5 objects

Biology

Biology · L3 · Herd Immunity · flowchart

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Flashcards10 cards

What is the glomerular filtration rate (GFR), and what is a typical value in a healthy adult?1 / 10

GFR is the volume of filtrate formed by both kidneys per minute, typically ~125 mL/min (~180 L/day). Only ~1-1.5 L is excreted as urine each day because more than 99% of the filtrate is reabsorbed along the nephron.

Biology

Biology · L4 · Nephron Function In Depth

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Flashcards9 cards

What is herd immunity?1 / 9

Herd immunity is protection at the level of a whole population, not just an individual. When enough people in a community are immune to a disease — through vaccination or past infection — the disease struggles to find new hosts to infect, so it stops spreading easily even to people who are not immune.

Biology

Biology · L3 · Herd Immunity

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Collection3 items

01Biology · L5 · Systems Biology and Network Modeling

02Biology · L5 · Systems Biology and Network Modeling

03Biology · L5 · Systems Biology and Network Modeling

Biology

Biology · L5 · Systems Biology and Network Modeling

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Collection5 items

01Biology · L3 · Turgor Pressure and Plasmolysis

02Biology · L3 · Wilting and Whole-Plant Water Loss

03Biology · L3 · Plant Water Relations Quiz

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Biology

Biology · L3 · Plant Water Relations

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Collection5 items

01Biology · L2 · Chlorophyll and the Hidden Pigments

02Biology · L2 · Why Leaves Change Color in Autumn

03Biology · L2 · Leaf Pigments and Color Change Quiz

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Biology

Biology · L2 · Leaf Pigments and Color

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Engineering

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Collection5 items

01Engineering · L2 · Friction Basics

02Engineering · L2 · Designing With Friction

03Engineering · L2 · Friction in Design

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Engineering

Engineering · L2 · Friction in Design

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Collection6 items

01RC Charging: V(t) = 1 − e^(−t/τ)

02RC Discharging: V(t) = e^(−t/τ)

03Step Response with Overshoot: 1 − e^(−x)·cos(b·x)

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Engineering

Engineering · L3 · Engineering Curves

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Collection6 items

01Engineering · L3 · AC Circuits — Concepts

02Engineering · L3 · AC Circuits — Numeric Problems

03Engineering · L3 · AC Circuits Basics

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Engineering

Engineering · L3 · AC Circuits

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Collection7 items

01Engineering · L2 · Bridges and Forces

02Engineering · L2 · Gears, Pulleys, and Circuits

03Engineering · L2 · The Engineering Design Cycle

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Engineering

Engineering · L2 · Structures & Circuits

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Collection12 items

01Engineering · L2 · Gears, Pulleys, and Circuits

02Engineering · L2 · A Simple Electric Circuit

03Engineering · L2 · Circuits and Gears Quiz

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Engineering

Engineering · Electrical & Control

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Collection2 items

01Engineering · L5 · Turbulence: Reynolds Decomposition & Energy Cascade

02Engineering · L5 · Nonlinear Dynamics: Lyapunov Stability & Bifurcations

Engineering

Engineering · Fluids & Thermal

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Astronomy

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Collection3 items

01Astronomy · L4 · Variable Stars: Cepheids, RR Lyrae & Asteroseismology

02Astronomy · L4 · Variable stars: Cepheids, RR Lyrae, and asteroseismology

03Astronomy · L4 · Variable Stars: Cepheids & RR Lyrae — 4 Q

Astronomy

Astronomy · L4 · Variable Stars: Cepheids & RR Lyrae

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Collection3 items

01Astronomy · L3 · Cosmic Rays & High-Energy Astrophysics

02Astronomy · L3 · Cosmic Rays & High-Energy Astrophysics

03Astronomy · L3 · Cosmic Rays & High-Energy Astrophysics

Astronomy

Astronomy · L3 · Cosmic Rays & High-Energy Astrophysics

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Collection4 items

01Astronomy · L1 · Jupiter, the Giant Planet

02Astronomy · L1 · Jupiter, the Giant Planet

03Astronomy · L1 · Why Jupiter Looks the Way It Does

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Astronomy

Astronomy · L1 · Jupiter, the Giant Planet

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Collection4 items

01Astronomy · L1 · Rockets

02Astronomy · L1 · Rockets

03Astronomy · L1 · A Rocket Launch, Step by Step

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Astronomy

Astronomy · L1 · Rockets

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Collection4 items

01Astronomy · L4 · Supernova Classification: Light Curves & Spectral Types

02Astronomy · L4 · Supernova Classification: Light Curves & Spectral Types

03Astronomy · L4 · Classifying a Supernova by Spectrum

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Astronomy

Astronomy · L4 · Supernova Classification: Light Curves & Spectral Types

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Collection3 items

01Astronomy · L2 · Light Pollution and Dark Skies

02Astronomy · L2 · Light Pollution and Dark Skies

03Astronomy · L2 · Light Pollution and Dark Skies

Astronomy

Astronomy · L2 · Light Pollution and Dark Skies

@openstem

Environmental

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Collection4 items

01Environmental · L1 · Earthquakes: Earth's Shaking Ground

02Environmental · L1 · Earthquakes: Earth's Shaking Ground

03Environmental · L1 · How an Earthquake Happens

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Environmental

Environmental · L1 · Earthquakes: Earth's Shaking Ground

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Collection7 items

01Environmental · L1 · Weather and the Water Cycle

02Environmental · L1 · Volcanoes and Eruptions

03Environmental · L1 · Fresh Water: Our Most Precious Resource

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Environmental

Environmental · L1 · Weather & Water

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Collection4 items

01Environmental · L4 · Environmental Microbiology

02Environmental · L4 · Environmental Microbiology: The Biogeochemical Engines

03Environmental · L4 · The Redox Ladder in Anoxic Sediment

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Environmental

Environmental · L4 · Environmental Microbiology

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Collection4 items

01Environmental · L1 · Worms & Decomposers

02Environmental · L1 · Worms & Decomposers

03Environmental · L1 · How Worms Recycle Dead Leaves

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Environmental

Environmental · L1 · Worms & Decomposers

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Collection4 items

01Environmental · L3 · Renewable Energy Technologies

02Environmental · L3 · Renewable Energy Technologies

03Environmental · L3 · Grid Balancing Under Renewable Intermittency

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Environmental

Environmental · L3 · Renewable Energy Technologies

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Collection4 items

01Environmental · L4 · Environmental Acoustics & Noise Pollution

02Environmental · L4 · Environmental Acoustics & Noise Pollution

03Environmental · L4 · Noise Propagation and Mitigation Pathway

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Environmental

Environmental · L4 · Environmental Acoustics & Noise Pollution

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Explore STEM Content

Software

Software · L2 · Git & Dev Workflow

Software · L2 · Git & Dev Workflow: Resolving a Merge Conflict

Software · L2 · Git & Dev Workflow: Resolving a Merge Conflict · flowchart

Collaboration & PR Workflow

Branching & Merging

Software · L2 · Git & Dev Workflow: Resolving a Merge Conflict

Mathematics

Mathematics · L4 · Probability Distributions

Mathematics · L4 · Probability Foundations

Mathematics · L2 · Pre-Algebra & Ratios

Mathematics · L3 · Statistics

Mathematics · L3 · Trigonometry

Mathematics · L1 · Shapes, Fractions & Measurement

Physics

Driven Oscillator Amplitude Response Near Resonance

Physics · L1 · Springs & Stretchy Things

Physics · L5 · Superconductivity — BCS Theory & the Meissner Effect

Physics · L4 · Fluid Mechanics

Physics · L1 · Wind & Moving Air: Kites, Sails & Pinwheels

Physics · L1 · Gravity & Falling

Chemistry

Chemistry · L3 · Ethanol (C₂H₅OH)

Chemistry · L5 · Supramolecular Chemistry

Chemistry · L5 · Statistical Thermodynamics

Chemistry · L4 · The Steady-State Approximation

Chemistry · L1 · Why a Candle Burns

Chemistry · L4 · Buffer Calculations and Capacity

Biology

Biology · L3 · Herd Immunity · flowchart

Biology · L4 · Nephron Function In Depth

Biology · L3 · Herd Immunity

Biology · L5 · Systems Biology and Network Modeling

Biology · L3 · Plant Water Relations

Biology · L2 · Leaf Pigments and Color

Engineering

Engineering · L2 · Friction in Design

Engineering · L3 · Engineering Curves

Engineering · L3 · AC Circuits

Engineering · L2 · Structures & Circuits

Engineering · Electrical & Control

Engineering · Fluids & Thermal

Astronomy

Astronomy · L4 · Variable Stars: Cepheids & RR Lyrae

Astronomy · L3 · Cosmic Rays & High-Energy Astrophysics

Astronomy · L1 · Jupiter, the Giant Planet

Astronomy · L1 · Rockets

Astronomy · L4 · Supernova Classification: Light Curves & Spectral Types

Astronomy · L2 · Light Pollution and Dark Skies

Environmental

Environmental · L1 · Earthquakes: Earth's Shaking Ground

Environmental · L1 · Weather & Water

Environmental · L4 · Environmental Microbiology

Environmental · L1 · Worms & Decomposers

Environmental · L3 · Renewable Energy Technologies

Environmental · L4 · Environmental Acoustics & Noise Pollution