# Recent content by Jamison Lahman

1. ### I Which tank fills first

Is it not possible the trickery is the assumption that "fill up" does not necessarily imply filling up all of the way?

K.
3. ### Do light and sound waves roll up and break like ocean waves?

It is directly relevant to the sentence quoted in my first post, as I have mentioned before. I genuinely can't clarify any more than that. I have also twice clarified it as a digression, yet you persisted I expand further. I genuinely don't know what more you want.
4. ### Do light and sound waves roll up and break like ocean waves?

The post I quoted in my initial comment. Specifically, comment #15 in the thread. The reason I am not being completely fulsome is because it is a digression from the topic and one OP may not even be interested in. Exerts from Computational Physics, Koonin and Meredith for context: ...
5. ### I Which tank fills first

It was asserted numerous times (never by OP), but never explicitly given. Why not unwatch the thread if you want it to die?
6. ### Do light and sound waves roll up and break like ocean waves?

The behavior of the error (going from positive to negative is of interest here. Also the error for integration converges to 0 for much larger values of h). This is a mild digression from shockwaves, but in direct reply to OP's statement in the quoted post.
7. ### Do light and sound waves roll up and break like ocean waves?

Computational texts will do it far more justice than I can, but, to use my own term, differentition is 'flaky' with regard to the step-sized used. See attached images: It is common for textbooks (especially old ones like Computational Physics by Koonin and Meredith from ~1970 and before...
8. ### Do light and sound waves roll up and break like ocean waves?

You should investigate numerical differentiation v. numerical quadrature. :wink:

Yes.
10. ### I Which tank fills first

A or F depending how fast the water is flowing from the faucet and what it means to "fill up". Assuming dripping and completely filled, F. The latter definitions give A, but do not seem to be what OP is looking for. EDIT: I am surprised no one has brought up the fact A is directly under the...
11. ### Convert horsepower to duck power

If birds have eliminated the need to pass gas, I see no problem with eliminating the exhaust path in the energy split diagram. Furthermore, I concur that ducks seem reasonably fit and the notion they're more efficient than large, energy hungry humans makes sense to me. I conclude that one...
12. ### Convert horsepower to duck power

That's why I made the duck statement the conditional. I don't have any ducks to train :/
13. ### Convert horsepower to duck power

Hmmmm. It does not seem like horsepower is defined as the maximum energy output of a horse, but rather the average output over a few hours of turning a mill wheel. Also, if a human can exceed a humanpower by an order of magnitude briefly, it seems reasonable to speculate so too could a horse and...
14. ### Convert horsepower to duck power

I stand corrected. However, referring to https://www.physicsforums.com/threads/convert-horsepower-to-duck-power.892341/#post-5614285, I find it troubling that duckpower is equal to humanpower. I am not sure what to make of this revelation.
15. ### Convert horsepower to duck power

This seems like a hasty assumption. I would imagine ducks have optimized their flight capabilities as well as the fact they are likely going to try to expend the fewest calories during a 1,500mi flight. An analogy would be how humans expend more calories in water than on land. I am not a...