180.45 sq.ft
U mean half sheet paper. u should be aware of the equation (density=mass/volume) if you know the density and the mass of the paper u find the volume.. or else collect bundle of half sheet papers, put it together and measure the "height, length and the width of it. volume=length*width*height. so u know the volume of the bundle. if there were 100 sheets in a bundle you just divide it by 100 and then you get the volume for one sheet of paper.
yes
You-tube or Google.
There are 21 shingles to a bundle and 3 bundles covers a 10 by 10 ft area. a basic rule is a bundle covers a sheet of plywood, then add some for valleys.
sheet or bundle
The xylem and phloem tube is called the Vascular Bundle.
Red tube
Tube pitch is the center-to-center distance between parallel straight tubes in a uniform bundle. The tube layout pattern is usually triangular or square. The tube pitch is usually about 1.25 times the outer diameter of the tubes.
cant find it but there is a you tube tutorial
I checked the spec sheet for this tube, and it's good for two basic circuits: low-level amplifiers and oscillators. So yes, it would be fine as a preamp tube or an input tube.
Measure the outer diameter of the tube and its' length. Calculate each tube volume and multiply by number of tubes. For those who want to calculate the inside liquid capacity of the shell side, it is advise to include the baffle volume with the tube bundle volume.