MDA is a man-made (synthetic) recreational drug noted for its stimulant and psychedelic properties that has been used since the 1960s as a clubbing and sex-enhancing substance, with some similarities to LSD and MDMA (ecstasy). Sought after effects.
The soaring temperatures that Las Vegas is experiencing this week could cause grief for pilots at other airports, because heat thins the air and makes it more difficult for aircraft to lift at take-off. To deal with that, pilots need to gain more momentum as they roll down the runway before reaching liftoff speed.
Air heats up relatively quickly for two reasons: first, because the specific heat capacity of air is about a quarter of water's; second, because air is a gas, it has relatively little mass. If your room is freezing and you turn on a fan (convection) heater, you'll find everything seems to warm up very quickly.bjects can store heat because the atoms and molecules inside them are jostling around and bumping into one another like people in a crowd. This idea is called the kinetic theory of matter, because it describes heat as a kind of kinetic energy stored by the atoms and molecules from which materials are made.