Herman Trivilino's latest activity
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Herman Trivilino replied to the thread Undergrad Light clock treating horizontal and vertical motion differently?.In this scenario is the clock at rest? There are an infinite number of reference frames for which your example is true, and those... -
Herman Trivilino replied to the thread Undergrad Light clock treating horizontal and vertical motion differently?.One time at a department meeting the chair declared that some educational data we'd collected was "bad" because it didn't show the...
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Herman Trivilino replied to the thread Undergrad Why is water pressure increased in a plastic bag in a bucket?.It's smaller than that! We don't have 1 ft of pressure gradient. The 1 ft is the amount of pressure, but the height of the bag, just a...
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Herman Trivilino replied to the thread Undergrad Light clock treating horizontal and vertical motion differently?.Einstein was very careful about the way he worded the 2nd Postulate. He stated the speed of light (in a vacuum) is indepedendent of the...
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Herman Trivilino replied to the thread Undergrad Light clock treating horizontal and vertical motion differently?.That's not relevant! What we're doing here is using the two postulates to draw conclusions. This entire thread is a discussion of the...
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Herman Trivilino replied to the thread Undergrad Why is water pressure increased in a plastic bag in a bucket?.Just checking to make sure you understand what is meant by pressure gradient as opposed to pressure. Pressure gradient refers to the...
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Herman Trivilino reacted to A.T.'s post in the thread Undergrad Why is water pressure increased in a plastic bag in a bucket? with
Like.
The vertical pressure gradient in the medium surrounding the bag, is greater in D than in B. This affects the pressure gradient in the... -
Herman Trivilino replied to the thread Undergrad Is a half submerged object submerged in its own displaced water?.Well, which is it? Slightly smaller or snug? The issue is this: Can water move around the edges of the object or are you making it more...
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Herman Trivilino replied to the thread Undergrad Is a half submerged object submerged in its own displaced water?.If it were in a state of neutral buoyancy you wouldn't need to hold it (with a string or anything else).
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Herman Trivilino replied to the thread Undergrad Why is water pressure increased in a plastic bag in a bucket?.I understand but I don't see the role it plays in process described by @jbriggs444. That's what I was responding to.
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Herman Trivilino reacted to Dale's post in the thread Undergrad Linear vs rotary motion with
Informative.
Geometrically it is for the same reason that an angle requires two straight lines but a curved line can make definite angles with... -
Herman Trivilino replied to the thread Undergrad Why is water pressure increased in a plastic bag in a bucket?.That explanation seems to work equally well for scenarios B and D. In other words, why the bucket?
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Herman Trivilino replied to the thread High School True static equilibrium and effects on time.The notion that there is a universal time that is the same everywhere can't be banished by ignoring it. It seems built into our...
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Herman Trivilino replied to the thread Undergrad Why is water pressure increased in a plastic bag in a bucket?.As @jbriggs444 and others have noted I think this is the key. The only thing I would add is a comment about the significance of the...
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Herman Trivilino reacted to A.T.'s post in the thread Undergrad Why is water pressure increased in a plastic bag in a bucket? with Like.
I guess I took the diagram too literally then. In this case I agree with @Dale that the mechanism proposed by @jbriggs444 is quite...