## Primary tabs

This is the second in a series of models that explore the dynamics of and policy impacts on infectious diseases. This basic SIR model explores the impact of a simple test and isolate policy.

#### Future Learn Basic SIR Model

##### Bob Hawkins

This is the first in a series of models that explore the dynamics of and policy impacts on infectious diseases. This basic model divides the population into three categories -- Susceptible (S), Infectious (I) and Recovered (R).

- 1 week 6 days ago

#### ST101 Single Shower Model

##### Bob Hawkins

This model of a single simple shower is based on a 1994 paper by John Morecroft et al of the London Business School. It is used to show the impact of delay on control of a simpl

- 2 years 4 days ago

#### ST101: Introduction to Systems Dynamics: Stocks and Flows

##### Bob Hawkins

This Insight has been developed as an introduction to the basics of Systems Dynamics as part of a series of models to explore the dynamics of growth and decline in a simple environment. It is the first Insight in a series of four and the next Insight can be found

- 2 years 4 days ago

#### Understanding the Environment 101: Activity 5C Overshoot and Collapse

##### Bob Hawkins

This Insight model is the last in a series of models that examine the dynamics of population growth and decline in a simple environment. The first model can be found he

- 2 years 6 months ago

#### Inequality 3: Simple Wage Model with Inflation v1.2

##### Bob Hawkins

This series of Insights have been developed to understand how income and wealth inequalities arise over time.

- 3 years 2 weeks ago

#### Inequality 1: Simple Wage Model v1.1

##### Bob Hawkins

This series of Insights have been developed to understand how income and wealth inequalities arise over time.

- 3 years 3 weeks ago

#### Inequality 2: Simple Wage Model with Debt v1.1

##### Bob Hawkins

This series of Insights have been developed to understand how income and wealth inequalities arise over time.

- 3 years 3 weeks ago

#### Chaos 101: Lorenz Equations

##### Bob Hawkins

The Lorenz Equations are a simplified model of atmospheric convection comprising three-dimensional differential equations.

The equations have three parameters (A, B, and C) that can be varied to create periodic and aperiodic (chaotic) behaviour.

- 3 years 5 months ago

#### Chaos 101: Logistic Equation

##### Bob Hawkins

This Insight has been set up to explore the properties of the logistics equation. The logistics equation is a very simple model of a population where there is some limit to growth. It is often cited as an archetypal example of how complex, chaotic behaviour can arise from very simple non-linear dy

- 3 years 5 months ago

#### Degree Day Model

##### Bob Hawkins

This Insight has been developed to explore the relationship between climate change and the number of heating and cooling degree days. The model has been calibrated using data for New York that accounts for future climate change.

- 3 years 5 months ago

#### Sign Graph: Hospital Bed Blocking

##### Bob Hawkins

Illustrative diagram based on section 1.19 of the FutureLearn MOOC on Systems Thinking and Complexity.

- 3 years 5 months ago

#### Sample Multiple Cause Diagram

##### Bob Hawkins

Illustrative diagram based on section 1.12 of the FutureLearn MOOC on Systems Thinking and Complexity.

- 3 years 5 months ago

#### ST101: Introduction to Systems Dynamics: Variables 1

##### Bob Hawkins

This Insight has been developed as an introduction to the basics of Systems Dynamics as part of a series of models to explore the dynamics of growth and decline in a simple environment. It is the second Insight in a series of four. The first Insight can be found

- 3 years 5 months ago

#### Understanding the Environment 101: Population Dynamics

##### Bob Hawkins

This Insight is the first in a series of models that examine the dynamics of population growth and decline in a simple environment. It follows on from a series of four Insights that introduce the basic concepts of Systems Dynamics that start

- 3 years 5 months ago

#### Understanding the Environment 101: Limits to Growth

##### Bob Hawkins

This Insight is the second in a series of models that examine the dynamics of population growth and decline in a simple environment. The first model can be found here.

- 4 years 1 month ago

#### ST101 Introduction to Systems Dynamics: Variables 2

##### Bob Hawkins

This Insight has been developed as an introduction to the basics of Systems Dynamics as part of a series of models to explore the dynamics of growth and decline in a simple environment. It is the third Insight in a series of four. The first Insight can be found

- 4 years 1 month ago

#### ST101 Leaky Bucket Model

##### Bob Hawkins

Simple model of a leaky bucket with a fixed fill rate and an empty rate that is dependent on the size of the hole in the bucket and the height of water. Can you save Guppy the fish who lives in the bucket?

- 4 years 1 month ago

#### ST101 Growth with Limits: Basic Model

##### Bob Hawkins

This Insight is a simple model of sales growth driven by word of mouth constrained by market saturation. Adjust the parameters below and hit the simulate button to see what happens.

- 4 years 2 months ago

#### Daisyworld v5b

##### Bob Hawkins

This Insight is a model of Daisyworld created by James Lovelock in 1982 to demonstrate the central idea behind the Gaia hypotheses that life and the environment may be considered two parts of a coupled system.

- 4 years 5 months ago

#### Daisy World v5a

##### Bob Hawkins

- 4 years 5 months ago

#### Basic Climate Model 101: Role of Oceans

##### Bob Hawkins

A simple Energy Balance Climate Model of the Earth with no atmosphere. Explore the impact of changing the ocean's depth (i.e. heat capacity) and the pattern of solar radiation on the earth's temperature by using the sliders in the panel below.

- 4 years 5 months ago

#### Basic Climate Model 101

##### Bob Hawkins

A simple Energy Balance Climate Model of the Earth with no atmosphere. Explore the impact of changing solar radiation, Earths albedo, and ocean heat capacity on the Earths temperature by using the sliders in the panel below.

- 4 years 6 months ago

#### ST101 Shower Control with Delay

##### Bob Hawkins

This Insight is a simple model of a sluggish shower, the classic example from Systems Thinking of a balance loop with delay. It illustrates the sometimes baffling influence that time delays can have on simple decision making tasks.

- 4 years 7 months ago