In a pneumatic system, is the air compressible? Explain why or why not. How might this affect the function and practical use of the system? Explain what steps were taken to address the above issue. In a hydraulic system, is the water compressible? How might this help/affect the functioning of the system?
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You are talking about fiberglass wool insulation, correct? The price is dependent on thickness, but if you buy R-13 in rolls, a square foot will cost you under 23 cents.
a wool blend means that other than wool, there are one or more other fibres/fabrics in with the wool.
Wool is generally warmer than cotton, due to the air spaces in wool.
is it possible to paint a wool rug
yes.glass wool is one of the sound absorbing material while ground glass is not.
When the first ball of wool is close to the end, change it. Just finish the row you are on, then instead of using the first ball of wool, start knitting the next row with the second one. Leave a little bit of wool from each skein hanging off of the end of the row, and after knitting a few stitches, you can tie the two pieces of wool together. When you are done making the scarf, you can cut off the loose pieces that are left over from making the knot.