Scientists May Have Finally Found the Origin of One of History’s Most Important Inventions
Although the first innovation was little more than grooved rollers, the miners likely improved this system over the course of ...
Scientific American2y
New Machinery for Paying Out the Atlantic Telegraph Cable—Who is the Inventor?
We give a description of this from the London Daily News of April 24 :— " The cable, after passing four times round each of the wheels of the paying-out apparatus, passes under a grooved wheel ...