Recent content by erobz

I don't hunt for trophy, but a trophy I'll take! The entire encounter lasted about 5-10 seconds on this last one...so I'm not sitting in the tree stand freezing my ass off saying - is it symmetric? - is it going to score well?... As its 80+ yards away walking quickly through thick brush...

I never assumed the females had a preference. As far as I can tell it is the competition of males that makes the losers fearful of approaching receptive females while the champion is around. If a female in heat is left in unattended, smaller (defeated) competitors will also breed them while the...

Portable, just to see if it gains any traction as "objective measurement" Maybe supplement. Whitetail ( sp[ecifically midwest )could still require a pretty large tank ( maybe 1m by 1 m), but not "moose large" If we just measure volume and assume a common density, I don't think it would be an...

I'm just looking at White Tail sized antlers.

I wasn't really thinking about weight(although it could be argued to be just as genetically of interest) ). The reason for all this is that the most genetically gifted trophy white tail are usually the largest volume of antler on the head...its naturally most impressive. They assert their...

In a real system with viscous losses I wouldn’t be able to tell until I had some real system/fluid properties to fiddle with computationally.

This system has a static pressure pre charge of 200 kPa. Turning on the pump will accelerate flow through the pump via pressure differential across it until the viscous losses in the loop grow to match the differential. It’s more complicated than this considering the actual response of the...

See my latest reply to @haruspex. Post in thread 'Bernoulli vs real life experiment' https://www.physicsforums.com/threads/bernoulli-vs-real-life-experiment.1083214/post-7291159 Given the thread title there is much to unpack.

In my opinion “the system” must be precisely tuned to achieve relative vacuum in the contraction. For instance, If it’s jetting to atmosphere at that point, it won’t achieve relative vacuum. If there is a static head keeping water column in the system before the pump is on than in any real...

a) how is pressure being applied if the pump is off? b) ##v_1## appears out of thin air, where did you get it? I’d like to explore what you think the entire system is for a bit. Then maybe the computation you could elaborate on. See latex guide for the mathematics formatting here...

They are bone, so pretty sure they sink and are relatively impermeable over the short timescales needed to make the measurement.

This will be a quick duration dip (done slowly as not to make waves), it won't be soaking. Just enough time for the water level to settle. But thanks for the tip about the air bubbles. Before we get to scientific/precise, take a look at the Boone and Crockett system of scoring...

Thank you, that technique would make precision adjustable. Also, this measures the volume directly; skipping a computation step and minimizes propagated error. Way to think outside the box! (fishtank)

My idea is that I want to use immerse Whitetail Antlers in a fishtank to measure their volumetric displacement (the Boone and Crockett system is the current record measurement standard to place in a juxtaposition with) I would use some sight glass plumbed into the side of the tank to get the...

You know what. Never mind. When I try to solve problems anymore, I get an almost nauseated with trembling anxiety, hyperactivity... It's very off-putting emotional response. Strange, perhaps unbelievable...I know. So just forget I asked. I tried problem solving after a good break from this...