You can see all of your stories from apps in your private activity log. To remove an app story from your Timeline and activity log: 1  Click in the top right of Facebook and select Activity Log.
upthrust. 1  a thrust in an upward direction. 2  a sudden and forceful upward movement, as of a nation's economy or the stock market: Market observers are hoping the upthrust can be sustained. 3  Geology. an upheaval. 4  to thrust upward: Frost caused the ground to upthrust.
If something floats the upthrust is equal to the weight of the object. Archimedes explained this by his principle: When a body is wholly or partially immersed in a liquid there is an upthrust which is equal to the weight of liquid displaced.pthrust this is all to do with objects immersed in fluids, either partially (some of the object sticks out of the fluid) or totally (all the object is below the fluid). A fluid can actually be a liquid or a gas but to make life easy we will stick to a liquid say water. We all know what that is!