Most children of school age who wet the bed at night have what doctors term primary enuresis.. They have never had nighttime control of their bladder. Family history plays a role, too, in incontinence in children. If you wet the bed as a child, don't be surprised when your child does, too.
One thing to notice is that if you put a gallon of air on a scale, (in a wieghtless container, of course) you would measure zero, exactly. That's because the buoyancy caused by the surrounding air exactly counteracts the weight of the air in the container. If you pressurized the air in your gallon container to, say ten times the outside pressure (or 147.0 psi absolute, or 132.3 psi gauge) it would now weigh nine times 0.01, or 0.09 lb.
Weight of Oil One gallon of oil is 6-8 pounds depending on density. If you assume SAE 10W-30 oil; density is 875 grasm/litre = 1.929 pounds per litre = 7.3 pounds per US gallon.rom what I found the density of olive oil, which probably is a  similar density to vegetable oil, is about 7.64 lb/gallon. So 1  gallon of vegetable oil will weigh approxim â¦ ately 7.6 lbs. Crude  corn oil (Vegetable oil) weighs 7.7 lbs per gallon.