The pressure difference above and below the wing creates a net upward force, giving the aircraft lift. (businessinsider.com)
The heat sink should be able to be removed with very little upward force, but sometimes the thermal compound doesn't know when to let go. (thatvideogameblog.com)
Yes, momentum can be a self - fulfilling prophecy; if things are going well, investors often expect the market to continue to go well, so they buy more stock — which, naturally boosts values even higher (even though the only real upward force is a bunch of investors who think the market is going to do well!). (wisestockbuyer.com)