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?
9 projects
We couldn't find an exact match. These are the closest 9, found by leaving out the time limit.
Or look inTwo-subject projectsHelp me choose
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
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
Biology · Microbiology
Compare antibacterial effects of natural substances
Test garlic, neem, turmeric and honey against harmless bacteria using paper discs on agar.
- Advanced
- 1–2 weeks
- 250–500
Physics · Nuclear Physics
Detect cosmic rays with a cloud chamber
Build a diffusion cloud chamber with dry ice and alcohol and count particle tracks.
- Advanced
- 2–7 days
- 500–1,000
Music, Theatre and Writing + Robotics, IoT and Hardware
Build an interactive installation
Make an artwork that responds to people with light or sound as they approach.
- Advanced
- 2–4 weeks
- 1,000–2,500
Chemistry · Organic Chemistry
Synthesise and test soap from cooking oil
Make soap by cold-process saponification under supervision and test its pH and lather.
- Advanced
- 2–4 weeks
- 250–500
Physics · Electronics
Build a crystal radio receiver
Receive AM radio with no battery using a coil, a diode and a long wire aerial.
- Advanced
- 1–2 weeks
- 250–500
Astronomy and Space · Planetary Science
Calculate the height of lunar mountains from a photo
Measure shadow lengths in a high-resolution Moon image and estimate the height of a crater rim.
- Advanced
- 2–7 days
- Free
0 to compare
Compare