I have been squeezing the blackheads on my nose for a long time and every time after I have done that (like 2-3 days later) a kind of hardening of the skin appeared on my nose (crust). After the crust has pealed off a fed days later it left a kind of "loose" or wrinkly skin behind. Now, even though I stopped doing that for more than 2 years, the skin on my nose still looks wrinkly (fine lines are visible) and the wrinkles chage shape as I moove my nose. Since the damage my skin hardens every time I apply ANY, even the slightest, pressure to it... I unfortunately have no idea if this can be reversed by any cosmetic treatment or anything... I hope it can...
No! Pressure is force per unit area: p=f/a. Thus it does not require a large force to produce a large pressure; reducing the area increases the pressure for the same applied force. The thumbtack, for example, can be considered to be a pressure amplifier since a small force applied to the head becomes a very large force at the pointed end of the thumbtack. Not if you have a narrow bore pipe.
Gunite is a mixture of water, cement, and sand applied through a pressure hose to produce a dense layer of concrete. This is used most often to line tunnels and repair structures.
Not normally.
yes and no at the same time
depending on its design, a resonator will produce anywhere from almost no back pressure, to a mild amount.
Anticyclones produce high barometric pressure.
Not normally
None.
Tornadoes produce low pressure.
The pressure
Wattage is the power applied to a speaker. More power usually means more volume. The sound pressure that a speaker will produce will be defined by the power applied, the resistance or impedance of the speaker (a lower impedance speaker will be louder) and the sensitivity of the speaker as a whole (the efficiency to turn the power into sound).
Heat