AI-assisted — how our quizzes are made
The wheel, writing, the printing press, and other inventions that changed civilization forever.
10 questionsSteam engines, electricity, the telegraph, and the inventions that drove the Industrial Revolution.
10 questionsPenicillin, X-rays, vaccines, and the accidental discoveries that saved millions of lives.
The computer, internet, smartphones, and the digital revolution that reshaped the modern world.
10 questionsPatent wars, stolen credit, and the surprising real stories behind who actually invented what.
10 questionsThe first commercially available personal computer for home use was the what?
IBM PC
Altair 8800
Apple II
Commodore 64
The microwave oven was invented after engineer Percy Spencer noticed food being heated by what?
Infrared lamps
Radar magnetron microwave emissions
Residual heat from a vacuum tube
Static electricity from early computers