Nothing
it goes up. :D
during cold weather like rain storms or snow storms the barometer goes down. During warm weather the barometer goes up.
When air pressure goes up, the liquid in a mercury barometer goes down. This is because as air pressure increases, it pushes the mercury in the tube to rise, indicating higher pressure.
when supply goes down the price goes up>
As you bring a barometer down a mine, the atmospheric pressure increases because of the weight of the air above pushing down. This causes the barometer to indicate a higher pressure reading compared to the surface. This increase in pressure can be used to estimate the depth of the mine shaft.
The price goes down, and the quantity supplied goes up
demand goes down
tsh goes down as thyroxine goes up.
The discount goes up, the sale price goes down.
As wavelength goes up, the frequency comes down.
Well, the economy screws up
the temp goes down, the winds go up, and the pressure goes up...