By default, an opcode is automatically given a code generator that calls MacroAssembler::opcodeName, where opcodeName is derived by lower-casing the first letter of the Air opcode name. Although you still have a slightly puffy head and stuffy sinuses, it is not as bad after the first couple of days. Be sure not to over-water either; too much water can be just as bad for you plants as too little. If you pour a glass of water out, it assumes a large, spherical drop that you can break up into separate, smaller drops. The nausea and disorientation that you feel are like that sinking feeling in your stomach when you experience a drop on a roller coaster ride — only you have that falling feeling for several days. You are actually in a state of free-fall, much like jumping from an airplane, except that you are moving so fast horizontally (5 miles per second or 8 kilometers per second) that you never touch the ground. Your food tends to be in forms that are sticky or pasty, like rice or peanut butter, so that it does not float away. Your face tends to get puffy and your sinuses swell, as shown below.

In microgravity, your face will feel full and your sinuses will feel congested, which may contribute to headaches as well as space motion sickness. Furthermore, plumbing networks are often able to respond quickly to any emergency plumbing needs you may have. The initial declaration of air defense emergency will automatically establish a condition of air defense warning other than white for purposes of security control of air traffic. You have been on your back in the chair for several hours as the pilots and mission control have gone through the preflight launch preparations. The longer you stay on the station, the less muscle mass you will have. Your body no longer needs slow-twitch endurance fibers, such as those used in standing. One countermeasure to deal with fluid loss is a device called lower body negative pressure (LBNP), which applies a vacuum-cleaner-like suction below your waist to keep fluids down in your legs.

When you return to Earth’s gravity, those fluids will be pulled back down to your legs and away from your head, causing you to feel faint when you stand up. The size and mass of your bones are balanced by the rates at which certain bone cells (osteoblasts) lay down new mineral layers and other cells (osteoclasts) chew up those mineral layers. As your kidneys eliminate the excess fluid, they also decrease their secretion of erythropoietin, a hormone that stimulates red blood-cell production by bone marrow cells. Also, the increase in blood and fluid decreases anti-diuretic hormone (ADH) secretion by the pituitary gland, which makes you less thirsty. Overall, these two factors combine to help rid your chest and head of the excess fluid, and in a few days, your body’s fluid levels are less than what they were on Earth’s surface. Once you’re back on our planet, your erythropoietin levels will increase, as will your red blood-cell count.

The decrease in red blood-cell production matches the decrease in plasma volume so that the hematocrit (percentage of blood volume occupied by red blood cells) is the same as on Earth. At the same time, as the days grow hotter, more water evaporates from reservoirs just as demand for water increases. More than twenty million tons of PPCPs are produced every year. However, because your vestibular system relies on the downward pull of gravity to tell you which way is up (and in which direction you are moving), it does not function in microgravity. Ionized Water, Kangen Water & Hydrogen Water: This book teaches the basic principle behind the water ionizers, Kangen water machines and hydrogen water machines, and describes how these machines function. Because fresh water is much less dense than salt water, and because icebergs are generally formed from fresh water, their weight distribution changes as they melt. You have to completely melt every crystal, by the way, or the liquid will quickly re-solidify.