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Sewing-Machine Needles, also known as Rocas Ministro Ezcurra [1) is a group of three prominent rock needles, the highest 45 m above water, lying close southeast of Rancho Point, Deception Island, in the South Shetland Islands
Like the preceding two-needle system, the code units consisted of rapid deflections of the needle to either left or right in quick succession. The needle struck a post when it moved, causing it to ring. Different tones were provided for the left and right movements so that the operator could hear the needle's direction without looking at it. [23]
The first American lockstitch sewing machine was invented by Walter Hunt in 1832. [7] His machine used a needle with the eye and the point on the same end carrying the upper thread, and a falling shuttle carrying the lower thread. The curved needle moved through the fabric horizontally, leaving the loop as it withdrew.
He created a compass in which the needle was floated in a goblet of water, attached to a cork to make it neutrally buoyant. The needle could orient itself in any direction, so it dipped to align itself with the Earth's field. Norman also created a dip circle, a compass needle pivoted about a horizontal axis, to measure the effect. [4] [8]
The following story exists but it is not supported by recent sources. [3] Lee was a curate at Calverton when he is said to have developed the machine because a woman whom he was courting showed more interest in knitting than in him (or alternatively that his wife was a very slow knitter). His first machine produced a coarse wool, for stockings.
The satin stitch is created by passing the threaded needle completely through the fabric. The hand machine is the predecessor of the schiffli embroidery machine. The schiffli machine creates a lock stitch similar to a sewing machine. Neither should be confused with the more modern single needle or multi-head embroidery machines. Machine ...
Eratosthenes in the 3rd century BC first proposed a system of latitude and longitude for a map of the world. His prime meridian (line of longitude) passed through Alexandria and Rhodes, while his parallels (lines of latitude) were not regularly spaced, but passed through known locations, often at the expense of being straight lines. [1]
The needle is set at a right angle to the surface that is measured and the stop is tightened. The sculptor then takes the whole cross, pointing machine and all, to the block of stone or wood and sets it up on the identical, corresponding basic points. The needle that defines the measuring point can slide.