Inventions and discoveries
Inventions rarely arrive fully formed from one mind. This course covers the changes that mattered most, the conditions that made them possible, and why the familiar stories about lone geniuses usually fall apart on inspection.
What you'll learn
10 chapters, then the quiz
- 01How invention happensRarely a single moment.
- 02Ancient technologiesThe deep foundations.
- 03Printing and paperCopying becomes cheap.
- 04Power and machinesMuscle to engine.
- 05Medical breakthroughsThe largest gains in life expectancy.
- 06CommunicationDistance stops mattering.
- 07ComputingFrom gears to chips.
- 08Feeding more peopleChemistry and breeding.
- 09Scientific discoveriesUnderstanding, not devices.
- 10Credit and consequencesWho gets remembered.
More science tests
See all →- Easy
The human body
Organs, systems and what each part is actually doing.
8 questions6 min - Medium
Space and astronomy
The solar system, the scale of it, and the forces holding it together.
8 questions7 min - Medium
Physics basics
Motion, forces, energy and waves, and the units that hold them together.
8 questions7 min