[quote author="irvine_home_owner" date=1251175123][quote author="Astute Observer" date=1251170056]
For the rest of the discussion, I'll let my sidekick, IHO, handle this
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No way. My brain isn't big enough.
I think out of the examples listed, the following involve "mass" in a more traditional sense:
<blockquote>a blow to knock down a tower of Jenga blocks</blockquote>
Not sure if meant a blow by someone blowing or a blow by someone putting in a wood block incorrectly. In either case, a blow of wind involves mass and an incorrectly placed block is caused by mass displacement.
<blockquote>someone simply walked by while I was stacking some playing cards</blockquote>
The mass involved here is the mass of the person who is walking by to exert enough force on the surface area to transfer vibration to the card structure. A smaller person, with less mass, may not cause the cards to fall. Someone like myself may not only cause the cards to fall but also throw BK himself off balance.
More scientifically:
<blockquote>The force of hurricane is one example where it is totally atmopheric.
Many forces exist in nature that are invisible to the naked eye such as magnetic, temperature changes that causes turbulance and etc.
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Atmospheric pressure (which is also related to the "water pressure in diving" you also mentioned) is also related to mass. Air pressure is measured by its mass. Temperature change in the atmosphere is related to air pressure, which indirectly ties it to mass.
I'm not a scientist, so I don't know this for sure but I think that's right. My brain is exploding.</blockquote>
The whole concept of pressure is based on the collision of gas particles (that have mass).