Depends on the time period. Early man learned how to make tools and fish hooks. I would call the gadgets.
It depends what you mean by GADGET. If you mean helpful device - then properly the wheel
An electric motor in 1915.
According to the official definition of 'gadget', the iPod Touch is a gadget.
an electronic gadget is a gadget that has an input transducer a processor and an out put transducer
The phrase "Go go gadget" is famously associated with the animated character Inspector Gadget, a bumbling detective with various gadgets built into his body. The character was created for a television series that first aired in the 1980s. Inspector Gadget uses this catchphrase to activate his gadgets, which assist him in solving crimes and thwarting villains.
No. An airplane is a machine, not a gadget.
That depends on the specific gadget.
The term "gadget" is broadly used to describe various tools and devices, and its discovery cannot be attributed to a single individual. However, the modern concept of a "gadget" often refers to small mechanical or electronic devices that enhance functionality or convenience. Many inventors throughout history have contributed to the development of various gadgets, such as Thomas Edison with his inventions in electrical devices. The specific origins of the word "gadget" itself are unclear, but it is believed to have emerged in the late 19th century.
zoopraxiscope
there isn't one
it was first discovered 1888
Inspector Gadget - 1983 Magic Gadget - 2.1 was released on: USA: 14 October 1985