Find out how to model a battery mathematically
Show that even a very powerful spaceship would eventually run out
of overtaking power
A look at the fluid mechanics questions that are raised by the
This is the technology section of stemNRICH - Core.
Explore the power of aeroplanes, spaceships and horses.
Advanced problems in the mathematical sciences.
This is the area of the advanced stemNRICH site devoted to the core applied mathematics underlying the sciences.
See how the motion of the simple pendulum is not-so-simple after
Look at the calculus behind the simple act of a car going over a
A look at a fluid mechanics technique called the Steady Flow
engNRICH is the area of the stemNRICH Advanced site devoted to the mathematics underlying the study of engineering
PhysNRICH is the area of the StemNRICH site devoted to the mathematics underlying the study of physics
An article about the kind of maths a first year undergraduate in
physics, engineering and other physical sciences courses might
encounter. The aim is to highlight the link between particular
maths. . . .
Explore the voltages and currents in this interesting circuit configuration.
In this short problem we investigate the tensions and compressions
in a framework made from springs and ropes.
What is a random pattern?
This article, including exercises, gives a thorough grounding in
the topic of AC/DC circuits.
How do these modelling assumption affect the solutions?
Given the equation for the path followed by the back wheel of a
bike, can you solve to find the equation followed by the front
This short question asks if you can work out the most precarious
way to balance four tiles.
Can you work out which of the equations models a bouncing bomb?
Will you be able to hit the target?
Can you match up the entries from this table of units?
At what positions and speeds can the bomb be dropped to destroy the
In an extension to the Stonehenge problem, consider the mechanical
possibilities for an arrangement of frictional rollers.
A series of activities to build up intuition on the mathematics of
Things are roughened up and friction is now added to the
approximate simple pendulum
Have you got the Mach knack? Discover the mathematics behind
exceeding the sound barrier.
What is an AC voltage? How much power does an AC power source
A look at power generation using wind turbines.
Derive Euler's buckling formula from first principles.
A preview of some of the beam deflection mechanics you will look at
in the first year of an engineering degree
Explore the mathematics behind the famous Wheatstone Bridge
As a capacitor discharges, its charge changes continuously. Find
the differential equation governing this variation.
An introduction to a useful tool to check the validity of an equation.
Prove that you can make any type of logic gate using just NAND
What will happen when you switch on these circular circuits?
Was it possible that this dangerous driving penalty was issued in
Put your complex numbers and calculus to the test with this
Can you set the logic gates so that this machine can decide how many bulbs have been switched on?
Which parts of these framework bridges are in tension and which parts are in compression?
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
Given the graph of a supply network and the maximum capacity for
flow in each section find the maximum flow across the network.
Bricks are 20cm long and 10cm high. How high could an arch be built
without mortar on a flat horizontal surface, to overhang by 1
metre? How big an overhang is it possible to make like this?
Explain why, when moving heavy objects on rollers, the object moves
twice as fast as the rollers. Try a similar experiment yourself.
Can you work out what this procedure is doing?
Can you think like a computer and work out what this flow diagram
Doug has just finished the first year of his undergraduate
engineering course at Cambridge University. Here he gives his
perspectives on engineering.