12 Ancient Devices That Used Magnetism in Strange Ways
Many early engineers built devices that responded to magnetic forces even if they did not fully understand what guided them.
Lost inventions
12 Machines From History That Worked on Unknown Principles
This listicle features ancient and historical machines that still puzzle researchers because their functions or inner workings remain unclear.
17 Forgotten Inventions That Were Way Ahead of Their Time
Discover 17 fascinating inventions from the past that were so advanced, they baffled their eras and vanished before their time.