What is a Styrofoam cooler and can we make a temporary Styrofoam cooler on our own?
A styrofoam cooler is basically a box made from a type of foam to keep things cold for a long time. Other coolers have a vacuum in their walls (a void space, not the appliance) that also do not allow heat transfer. You could make one wih 6 rectangula...
Why are bottom-freezer refrigerators so much more expensive then top-freezer refrigerators?
Basically the manufacturers don't sell as many bottom-freezer refrigerators as they do the top mount ones... The production costs are about the same, but the sales are lower... in turn it's more of a specialty item...
Probability Question?
A. If you test 4 out of 6, the chances that the first defective fridge will be in the 4 is 2/3 and the chances that the second will be after that is 3/5, and 2/3*3/5=0.4 or 40% chance. B. 50%, of course. Half a chance of being in the two fridges to b...