Pure Mathematics + Cybersecurity
Break a secret with number theory: how RSA works
Encrypt and decrypt a message with small primes by hand, then in code, and see why large primes matter.
- Advanced
- 1–2 weeks
- Free
606 projects · 13 streams · every class
What do you want to build?
59 projects
Physics · Modern Physics
Measure Planck's constant with LEDs
Find the turn-on voltage of LEDs of different colours and get Planck's constant from the slope.
- Advanced
- 2–7 days
- 250–500
Biology + Data
Compare a DNA sequence across species with free tools
Download one gene from six species, align the sequences and build an evolutionary tree.
- Advanced
- 1–2 weeks
- Free
Electrical Engineering + Robotics, IoT and Hardware
Build a PID temperature controller
Hold a small heater at a set temperature and tune the controller from its step response.
- Advanced
- 2–4 weeks
- 1,000–2,500
Cybersecurity · Web Security
Find and fix vulnerabilities in a deliberately weak web app
Run a training app on your own computer, find the classic flaws, then write the fixed code.
- Advanced
- 2–4 weeks
- Free
Development and Applied Economics · Econometrics
Test whether education and earnings are related
Use a public survey dataset to estimate how much an extra year of schooling relates to earnings.
- Advanced
- 2–4 weeks
- Free
Artificial Intelligence · Recommendation Systems
Build a movie recommender
Recommend films from the public MovieLens ratings using item similarity.
- Advanced
- 2–4 weeks
- Free
Artificial Intelligence · Machine Learning
Compare machine-learning models on one dataset
Evaluate five classifiers on the same public dataset with cross-validation and report the differences properly.
- Advanced
- 1–2 weeks
- Free
Applied Mathematics + Civil Engineering
Model traffic flow with cellular automata
Simulate cars on a ring road and show how jams appear from nothing above a critical density.
- Advanced
- 1–2 weeks
- Free
Data · Data Engineering
Build a data pipeline that runs every day
Fetch a public data feed daily, clean it, store it in a database and chart the history.
- Advanced
- 2–4 weeks
- Free
Robotics, IoT and Hardware + Environmental Science
Monitor air quality with a low-cost sensor
Build a particulate monitor, log readings and compare them with the nearest official station.
- Advanced
- 2–4 weeks
- 1,000–2,500
Political Science + Philosophy and Cultural Studies
Study a political idea through its key thinkers
Trace one idea, such as liberty or equality, through three thinkers and take a position.
- Advanced
- 2–4 weeks
- Free
Artificial Intelligence · Computer Vision
Build an image search engine
Find visually similar images by comparing feature vectors from a pretrained network.
- Advanced
- 2–4 weeks
- Free
Chemical Engineering · Reaction Engineering
Optimise a reaction with a simple reactor model
Simulate batch and continuous reactors for a first-order reaction and compare conversion.
- Advanced
- 2–4 weeks
- Free
Systems and Cloud · System Design
Design the architecture of a food-delivery app
Design a system for orders, restaurants and delivery partners and justify each choice with numbers.
- Advanced
- 1–2 weeks
- Free
Data · Big Data
Analyse a large open dataset with SQL
Load a multi-million-row public dataset and answer ten business questions with efficient queries.
- Advanced
- 1–2 weeks
- Free
Biomedical Engineering + Health Technology
Make a low-cost digital stethoscope
Fit a microphone to a stethoscope head, record heart sounds and analyse them on a computer.
- Advanced
- 2–4 weeks
- 1,000–2,500
Automobile Engineering · Safety Systems
Build an anti-lock braking demonstration
Show how pulsing a brake keeps a model wheel from locking.
- Advanced
- 2–4 weeks
- 1,000–2,500
Civil Engineering · Materials
Test concrete mixes for strength
Cast cubes with different water-cement ratios and compare their strength after curing.
- Advanced
- 2–4 weeks
- 500–1,000
Biology · Microbiology
Investigate which mouthwash or toothpaste limits plaque bacteria
Compare how well mouthwashes inhibit bacterial growth on agar using the disc method.
- Advanced
- 1–2 weeks
- 250–500
Programming + Systems and Cloud
Build a tiny key-value store in Rust
Write a persistent key-value database with get, set and delete and an append-only log.
- Advanced
- 2–4 weeks
- Free
Automobile Engineering + Physics
Model a car suspension
Simulate a quarter-car model over a bump and tune the damper for comfort.
- Advanced
- 2–4 weeks
- Free
Sociology · Inequality
Compare two neighbourhoods using census data
Use census tables to describe occupation, literacy and housing in two wards and compare them.
- Advanced
- 2–4 weeks
- Free
Macroeconomics + Public Policy and Governance
Evaluate a government scheme from published data
Choose one scheme and test whether its target indicator improved after it started.
- Advanced
- 2–4 weeks
- Free
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