Q:No need those expensive type that cost more than $3.00

Try tracing paper, and the wooden sticks you use for skewing meat for barberques.

Q:The difference between extruded board, polystyrene board and extruded polystyrene foam board

1 expansion polystyrene board (EPS board) thermal conductivity 0.038-0.041, good insulation effect, cheap price, poor strength.2 extruded polystyrene board (XPS board) thermal conductivity 0.028-0.03, better insulation effect, high strength, moisture resistance, expensive, the surface of the construction needs to be dealt with.

Q:Can plastic sheets be used for insulation purposes?

Yes, plastic sheets can be used for insulation purposes. They are commonly used as vapor barriers and thermal insulation in buildings to reduce heat transfer and prevent moisture infiltration. Plastic sheets with insulating properties, such as polyethylene or polystyrene, are effective in minimizing energy loss and improving thermal efficiency.

Q:How do you remove the plastic block from the kitchen?

The wooden cutting board of high density, strong resilience, strong because the wooden chopping board easy to choose some wooden boards (BIOU cypress) containing toxic substances and odor pollution in vegetable dishes and can cause vomiting, abdominal pain, faint symptoms some loose poplar wood chopping board board easy to crack the surface hardness is enough to cut clean easy to shelter evil people and countenance evil practices. Recommended to choose the recommended food contamination material

Q:That bit of plastic sheeting you can optionally peel off of expensive gadget screen's?I want to protect my new glossy 360 from finger prints my new ipod 4. ( I know it comes with it but i want to re-place sometimes if gets too dirty) thanks.Preferably a shop name from the UK. Thanks.

Jessops, the photo shop have them.

Q:I've been doing it the cheap way, with a manilla folder and I've also used a couple of mylar sheets. Obviously the mylar works best, but the folder gets the job done pretty good. Any suggestions on other materials?

Clear shelf paper. you cut out the design, then peel off the backing and stick it to what you are stenciling. One roll will last a long time

Q:Can plastic sheets be recycled indefinitely?

No, plastic sheets cannot be recycled indefinitely. While plastic can be recycled multiple times, each recycling process degrades the quality of the plastic and eventually renders it unusable for recycling.

Q:Hi all,I would like to know how to calculate the maximum volume of a bag made from 1 folded plastic sheet of which the outer edges are welded together. Say the bag is 1 m x 2 m. If I inflate that bag, the volume will increase until it reaches a maximum. Does somebody know how to calculate the maximum volume? Thanks

I don't know, and this is an approximation. Suppose the center cross-section of the bag (1 meter from each end) inflates to where it is perfectly circular. The diameter of the circle will be (2 m)/pi = 0.6366 m. Near the ends of the bag, the cross-sections parallel to this center cross-section might be very narrow ellipses; and exactly at the ends of the bag, the X-section is 0. Let's suppose the semi-minor axis of each ellipse decreases linearly from 0.3183 m to 0 unifomly as you move along the long axis of the bag. Note that you will not get 1 full meter away from the central X-section, because the section looking sideways at the 2-m seam is a rhombus of perimeter 4m, and its minor diagonal is 0.6366 m. Then the full length of the inflated bag would be 2 sqrt(1^2-0.3183^2) = 1.896 m. So I'm going to assume every cross-section parallel to the circular cross-section is an ellipse, whose semi-minor axis varies linearly from 0.3183m down to zero, and whose semi-major axis varies linearly from 0.3183m up to 0.5m. In particular, taking x=0 to be the coordinate of the circular X-section, I have b = 0.3183 - (0.3183/0.948) x, and a = 0.3183 + (0.1817/0.948) x. The area of each ellipse is pi*a*b, and the volume of the bag is 2 times the integral from x=0 to x=0.948 of pi ab dx = 2*int from x=0 to x=0.948 of pi [0.3183 - (0.3183/0.948)x] [0.3183 + (0.1817/0.948)x ] dx = 2 * int from x=0 to x=0.948 of pi [0.1013 - (0.3183/0.948)(0.1366 x) - 0.06435x^2 ] dx = 2 * int x=0 to x=0.948 of pi [0.1013 - 0.04586 x - 0.06435 x^2] dx After integration you have 2*pi [0.1013x - 0.02293 x^2 - 0.02145 x^3] to be evaluated at x=0 and x=0.948 meters = 2 pi [0.096 - 0.0206 - 0.0183] cubic meters = (6.28)(0.057) = 0.36 cubic meters Another figure for comparison is a prolate ellipsoid whose minor semi-axes are both 0.3183 and whose major semi-axis is something like 0.9; its volume would be pi*a*b*c = 0.29 m^3. So, my first answer probably isn't completely crazy...

Q:Can plastic sheets be transparent?

Yes, plastic sheets can be transparent.

Q:when you go into a huge refrigerator thats door remains open and has plastic ribbons for insulation

I can't recall it's name but go to your local hardware store and ask . It's also used as fly screens in varying thicknesses. It's PVC apparently. Commonly used in Cafes thus called CAFE BLINDS.