Herman Trivilino's latest activity
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Herman Trivilino replied to the thread Undergrad Compare Bending Resistance of Dimension Lumber used as Joist.It seems to me that the horizontal members are not load-bearing so the concern over their strength is unwarranted. Virtually all the... -
Herman Trivilino replied to the thread Undergrad Comparing the time of two moving clocks.E2 and E3 are different events. Of course the clock readings are different. Would you expect leaving for home and arriving at an event...
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Herman Trivilino replied to the thread How good is Brian Cox as a science communicator?.In general I find Brian Cox unimpressive and boring.
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Herman Trivilino reacted to PeterDonis's post in the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same? with
Like.
I'm not sure what this question even means. In actual experiments, there is no such thing as "quantum interference pattern" vs... -
Herman Trivilino replied to the thread Undergrad How does reciprocal time dilation work?.That can never happen. You have misunderstood something. That can never happen, either. A reading on a clock, like any measurement, is...
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Herman Trivilino reacted to haruspex's post in the thread High School Why the bottom of a rolling wheel has zero velocity with Like.
To put it more rigorously, if two bodies are wholly or partly in rolling contact then at each instant a point on one body that is in...
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Herman Trivilino replied to the thread Absolute vs. Relative Grading System: Pros, Cons, and Experiences.Synchronization alone, perhaps not. I had the advantage of teaching in a system where students had the same classmates and instructor...
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Herman Trivilino replied to the thread Absolute vs. Relative Grading System: Pros, Cons, and Experiences.It seems to me this would only apply after a 5-year leave of absence.
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Herman Trivilino replied to the thread Absolute vs. Relative Grading System: Pros, Cons, and Experiences.It's a fact. And I can be more specific. There has been a progressive decline in student performance during the last 4-5 decades. The...
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Herman Trivilino replied to the thread Absolute vs. Relative Grading System: Pros, Cons, and Experiences.In my opinion a novice instructor needs to grade on a curve and an experienced instructor can and should grade on an absolute scale. How...
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Pinewood derby in a frictionless world would indeed be very boring.
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Herman Trivilino replied to the thread High School Pinewood Derby Physics.My brother "helped" me by telling me that that the weight of the car didn't matter because all bodies fall the same regardless of their...
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Herman Trivilino replied to the thread Basic skills that kids are lacking.Children are raised in a cuddle culture. Never told they are wrong. We don't want them to experience shame or disappointment, yet we are...
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Herman Trivilino reacted to PeroK's post in the thread Does the Lorentz factor aid understanding of SR, or obscure it? with Like.
For most students, including myself, putting SR in this context is important. I'm quite mathematical, but diving straight into...
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Herman Trivilino replied to the thread Does the Lorentz factor aid understanding of SR, or obscure it?.I start with a chart showing the values of ##v## and ##\gamma## for the motions of different objects. Starting with maybe a race car...