He invented a thing to help people with brain injurys
a compas
Monkey Wrench
the fork
the seismograph
Humans really do not need a lot of things to invent a tool. All a human needs are there minds.
yes. they first used it as a hunting weapon/tool
its a medical tool which you can reanimate
stethoscope
Harrows were first introduced in ancient times. There's no record of an individual who invented it.
Scope is the medical term meaning an instrument used for observation. There is no general term for any medical instrument.
organization
Christopher Columbus did not invent the compass. The compass was invented in China for Feng Shui practitioners, to "align" the forces of the earth to help them maintain balance in their lives for later to become an important navigational tool.