How was the BONE NEEDLE invented?
1456
Benjamin rubin
bob wormanhiemer
Marlene Miller
900,000 b.C
The astatic needle was invented by John Leslie in 1804. It improved the accuracy and sensitivity of early galvanometers used in scientific experiments.
The syringe needle was invented in the United States by Charles Pravaz and Alexander Wood in the mid-19th century. They developed the concept of a hollow needle attached to a syringe for medical injections.
The astatic needle was created by Leopoldo Nobili in 1825.
The hypodermic needle theory was invented by Harold Lasswell in 1927. He states that Media can 'inject' ideas/behaviours directly into a passive audience or society.
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Albert Bujan of Abbott Labs