Recent content by Darmog

from Darmog to Petelewis and other interested in noise cancelling earphones. I'm sure manufacturers of these phones would be pleased to reassure you that there is no extra energy entering the ears and may offer to send you a set on approval.

Palladin would be interested to learn that I have noise cancelling headphones that work rather well to make listening to music much better in car, train, and plane. The background roar and rumble is much reduced. Air pilots use a similar article. I presume the energy is mostly absorbed in the...

The extra gas is at same temperature as liquid but has gained energy from its suroundings. The liquid will have cooled very slightly but this is compensated by gaining some heat (energy) from the cylinder case and then from the environment. (energy is conserved) The latent heat factor may be...

Potential of static charge is not a matter of difference from an arbitrary reference but is zero on a body where negative and positive charges balance. I suggest recall of early classical experiments with pith balls suspended on threads, gold leaf electroscopes, cat fur, amber rods etc...

Loss of mass flow? Bernoulli then will no longer apply - there must be leak in your pipe. This happens often to oil pipes in Nigeria I've heard.(Theft) Where pressure is reduced the energy is manifest in another form ie kinetic. Darmog

This began with request to clarify one thing quickly! Bloodpressure may be most complex model and guaranteed to confuse as is evident already. Sorry, BP not quite enclosed system as apart from blood loss, donation, and transfusion, there is substantial daily variation in blood volume by...

I presume fan is a room cooling fan with no duct or cowl. If it is close to a table top or floor then that surface will have a partial ducting effect for airflow from bottom part of fan where that restriction will reduce the dispersion, mixing, and thus slowing of volumes of air in that region...

The blood pressure proposition has incorrect assumptions eg following artery constriction heart beats faster. Why not slower? Having been an anaesthetist used to considering these variables I would say heart output would likely fall even while systolic pressure perhaps increased. I recommend we...