Basic Statistics for Epidemiology: Prevalence vs Incidence. In short, epidemiology is sort of the who what, when, why, how and where of disease. It doesnât involve any experimentation or clinical trials, so it is really of interest to public health, because it is just about what happens.
So if a queen-sized waterbed with a bladder-type mattress holds roughly 130 gallons of water that weighs in at 1,084 pounds plus the weight of the frame and two people.o keep the math simple let s assume that the mattress, frame and two adults weighs 1,300 pounds and that the bed assembly measures six feet by six feet taking up a total of 36 square feet of floor space. If we divide the weight of the bed by 36 the square footage-that gets us to 36 pounds per square foot.
Width x Length x Depth = Total Cubic Inches in a waterbed softside waterbed cavity or hardside wood frame waterbed. Cubic inches in 1 Cubic Foot = 1728 Cubic Inches 1728 Cubic Inches in 1 Cubic Foot 7.48 Gallons = 1 Cubic Foot Cubic Feet x Cubic Gallons = Total number of gallons in a waterbed mattress Gallon of water weight 8.346 Weight of water x Total number of gallons of water in a waterbed = Total Weight. What is the weight of the hardside waterbed bladder /mattress? You can follow our equation and see how we came to or results. California King Waterbed Weight Is 1857.24 Pounds 72 x 84 x 8.5 = 51408 Cubic Inches divided by 1728 Cubic Inches= 29.75 Cubic Feet