It was designed and built by Peter Cooper in 1830.
Peter Cooper
the Irish built it from the east to Utah, and the Chinese built it from the west.
telegraph invented
A+Ls** Peter Cooper built the Tom Thumb.Peter Cooper
Peter Cooper invented the Tom thumb in 1830
Tom Thumb was the first American-built steam locomotive to operate on a common-carrier railroad. Designed and constructed by Peter Cooper in 1830, it was built to convince owners of the newly formed Baltimore and Ohio Railroad (B&O) to use steam engines and not intended to enter revenue service.
The first thing Tom Thumb built was a small house for himself, which showcased his remarkable skills and creativity. This miniature house was part of his overall talent as a performer and entertainer, emphasizing his ability to create and craft in a world that often overlooked him due to his size. It served as a demonstration of his ingenuity and resourcefulness.
Using the thumb to control the flow of liquid in a pipette can introduce variability in the amount of liquid being dispensed due to differences in thumb pressure. It is more accurate to use the pipette's built-in mechanism, such as a plunger, to control the flow rate and ensure consistent results.
thumb nail, thumb tack, thumb screw, thumb print
My thumb, from the palm-thumb joint to the thumb-tip is 7.0 cm.
A ball of the thumb is the fleshy portion of the thumb opposite the nail, belonging to the first segment of the thumb.