In humans there are 13 vitamins : 4 fat-soluble (A, D, E, and K) and 9 water-soluble (8 B vitamins and vitamin C). Water-soluble vitamins dissolve easily in water and, in general, are readily excreted from the body, to the degree that urinary output is a strong predictor of vitamin consumption.
Hydrogen and Oxygen
Water is essential for life. Water is composed of two atoms of hydrogen and one part oxygen.
Karl Friedrich Benz (1844-1929) was a German engine designer, engineer, and inventor of the first automobile powered by an internal combustion engine in 1885.
1.1 million pounds
How to measure the weight of a cloud
- How dense the cloud is = 1/2 gram per cubic meter
- How big the cloud is = a kilometer long and a kilometer tall.
- Do the math with the density and volume to determine the total water content of the cloud. In this case, it’s 500,000,000 grams of water, or 1.1 million pounds. Volume= Mass / Density
- How does a several-hundred-ton cloud stay afloat ? It’s distributed among trillions of tiny water droplets spread out over a really big space. Some of these droplets are so small that you would need a million of them to make one raindrop, and gravity’s effect on them is pretty negligible.