Circular knitting or knitting in the round is a form of knitting that creates a seamless tube. When knitting circularly, the knitting is cast on and the circle of stitches is joined. Knitting is worked in rounds (the equivalent of rows in flat knitting) in a spiral. Originally, circular knitting was done using a set of four or five double-pointed needles.
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Types of explosions. There are three types of explosions. 1) popcorn. physical. Heat turns water to steam inside the kernel. and pressure builds to 135 psi, 180oC. The pericarp bursts, steam carries the starch. and proteins outward as a foam. When it hits the cooler air, the foam sets, showing the shape of the explosion.