As a capacitor discharges, its charge changes continuously. Find
the differential equation governing this variation.
Explore the mathematics behind the famous Wheatstone Bridge
Derive Euler's buckling formula from first principles.
Prove that you can make any type of logic gate using just NAND
In this short problem we investigate the tensions and compressions
in a framework made from springs and ropes.
Explore the voltages and currents in this interesting circuit configuration.
This article, including exercises, gives a thorough grounding in
the topic of AC/DC circuits.
This short question asks if you can work out the most precarious
way to balance four tiles.
A preview of some of the beam deflection mechanics you will look at
in the first year of an engineering degree
In an extension to the Stonehenge problem, consider the mechanical
possibilities for an arrangement of frictional rollers.
A look at power generation using wind turbines.
Things are roughened up and friction is now added to the
approximate simple pendulum
A look at a fluid mechanics technique called the Steady Flow
See how the motion of the simple pendulum is not-so-simple after
Can you work out which of the equations models a bouncing bomb?
Will you be able to hit the target?
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
Show that even a very powerful spaceship would eventually run out
of overtaking power
What is a random pattern?
A series of activities to build up intuition on the mathematics of
engNRICH is the area of the stemNRICH Advanced site devoted to the mathematics underlying the study of engineering
At what positions and speeds can the bomb be dropped to destroy the
Which parts of these framework bridges are in tension and which parts are in compression?
How do these modelling assumption affect the solutions?
Advanced problems in the mathematical sciences.
PhysNRICH is the area of the StemNRICH site devoted to the mathematics underlying the study of physics
This is the technology section of stemNRICH - Core.
Explore the power of aeroplanes, spaceships and horses.
A look at the fluid mechanics questions that are raised by the
Find out how to model a battery mathematically
This is the area of the advanced stemNRICH site devoted to the core applied mathematics underlying the sciences.
Look at the calculus behind the simple act of a car going over a
Can you set the logic gates so that this machine can decide how many bulbs have been switched on?
What will happen when you switch on these circular circuits?
Can you match up the entries from this table of units?
An introduction to a useful tool to check the validity of an equation.
Was it possible that this dangerous driving penalty was issued in
Have you got the Mach knack? Discover the mathematics behind
exceeding the sound barrier.
Put your complex numbers and calculus to the test with this
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. . . .
What is an AC voltage? How much power does an AC power source
Given the graph of a supply network and the maximum capacity for
flow in each section find the maximum flow across the network.
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
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?
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?
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.