Prove that you can make any type of logic gate using just NAND gates.

Can you think like a computer and work out what this flow diagram does?

Show that even a very powerful spaceship would eventually run out of overtaking power

Can you work out which of the equations models a bouncing bomb? Will you be able to hit the target?

This article, including exercises, gives a thorough grounding in the topic of AC/DC circuits.

A preview of some of the beam deflection mechanics you will look at in the first year of an engineering degree

A look at a fluid mechanics technique called the Steady Flow Momentum Equation.

A think about the physics of a motorbike riding upside down

Derive Euler's buckling formula from first principles.

Explore the mathematics behind the famous Wheatstone Bridge circuit.

As a capacitor discharges, its charge changes continuously. Find the differential equation governing this variation.

A series of activities to build up intuition on the mathematics of friction.

Investigate why the Lennard-Jones potential gives a good approximate explanation for the behaviour of atoms at close ranges

How does the half-life of a drug affect the build up of medication in the body over time?

Things are roughened up and friction is now added to the approximate simple pendulum

Many physical constants are only known to a certain accuracy. Explore the numerical error bounds in the mass of water and its constituents.

Look at the units in the expression for the energy levels of the electrons in a hydrogen atom according to the Bohr model.

Explore the energy of this incredibly energetic particle which struck Earth on October 15th 1991

Investigate some of the issues raised by Geiger and Marsden's famous scattering experiment in which they fired alpha particles at a sheet of gold.

Dip your toe into the world of quantum mechanics by looking at the Schrodinger equation for hydrogen atoms

A look at different crystal lattice structures, and how they relate to structural properties

Find the equation from which to calculate the resistance of an infinite network of resistances.

What is an AC voltage? How much power does an AC power source supply?

A ball whooshes down a slide and hits another ball which flies off the slide horizontally as a projectile. How far does it go?

Put your complex numbers and calculus to the test with this impedance calculation.

At what positions and speeds can the bomb be dropped to destroy the dam?

The probability that a passenger books a flight and does not turn up is 0.05. For an aeroplane with 400 seats how many tickets can be sold so that only 1% of flights are over-booked?

Doug has just finished the first year of his undergraduate engineering course at Cambridge University. Here he gives his perspectives on engineering.

See how the motion of the simple pendulum is not-so-simple after all.

Explore the relationship between resistance and temperature

Use trigonometry to determine whether solar eclipses on earth can be perfect.

Investigate the effects of the half-lifes of the isotopes of cobalt on the mass of a mystery lump of the element.

This problem explores the biology behind Rudolph's glowing red nose.

Estimate these curious quantities sufficiently accurately that you can rank them in order of size

Explore the possibilities for reaction rates versus concentrations with this non-linear differential equation

Investigate the mathematics behind blood buffers and derive the form of a titration curve.

Follow in the steps of Newton and find the path that the earth follows around the sun.

Each week a company produces X units and sells p per cent of its stock. How should the company plan its warehouse space?

If a is the radius of the axle, b the radius of each ball-bearing, and c the radius of the hub, why does the number of ball bearings n determine the ratio c/a? Find a formula for c/a in terms of n.