centripetal truth

[AntonioLao]

Although centrifugal is a fictitious force, the centripetal is real. It exists wherever and whenever there is a uniform circular motion in smooth unimpeded continued progress. This general description applies both to the large scale structures of the visible universe such as planetary motions, stellar motions, and galactic motions; and to the small scale structures such as electron orbitals and intrinsic spins of both particulate matter and energy. Furthermore, this applicable motion in the large and in the small can be defined as a quantity called the centripetal acceleration, which can be shown to be independence of the conceptual definitions of mass, energy, and force. On the other hand, its dependence on the square of linear velocity is directly proportional and its dependence on the space-time metric is inversely proportional such that the centripetal acceleration (��) is defined as ��=��/��. If both sides of this equation are multiplied by the mass factor (��) then it is equivalent to the inertial force (Newton’s 2nd law of motion) on the left and the centripetal force on the right. Both are real physical quantities which can be measured accurately and precisely using a sensitive apparatus. These measurements were performed by Newton using pendulums of equal length but different composition and verified by Friedrich Wilhelm Bessel (1784-1846) in 1830. Then in 1889, Roland von Eötvös succeeded using a different method of torsion balance of which the best-known is that used by Henry Cavendish (1731-1810) and later by Sir Charles Boys (1855-1944) to determine the gravitational constant. Einstein was very impressed with the observed equality of gravitational and inertial mass and this result inspired him to formulate the Principle of Equivalence as the only guiding working principle for his theory of general relativity. However, during the 1960s Robert Henry Dicke (1916-1997) and his corroborations improved on Eötvös method but still failed to realize the centripetal truth hidden behind the Principle of Equivalence which in vector formats is given by ��•��=��, where �� is now defined as the absolute acceleration, �� is the same space-time metric, and �� is the speed of light. This states that the inner scalar dot product of the absolute acceleration with the space-time metric is equal to the square of lightspeed.

[labelwench]

Now there's a fun science experiment to demonstrate for the youngsters come the summer time, lol.....
That way, if the first few attempts go awry, there will come no harm of the experiment. My personal suggest would be to use fairly small buckets, and of stout construction, as water has significant weight, and once put into motion, 'equipment failure' could prove interesting.

Centripetal Force and Gravity: The Physics Kahuna did a silly demonstration involving
a bucket of water that was spinning in a vertical circle. The water stayed in the bucket and did not
fall out.
So what was the deal? Does spinning something
in a vertical circle somehow cancel out gravity?
Well, no, gravity is a force that cannot be stopped
or canceled. It is always there, anytime you have
the appropriate masses.
The water does fall, it falls but the bucket falls
with it and catches it.
This only works if the bucket is moving fast enough to catch the water. If the bucket is too slow,
then the water will fall out of it.

The minimum linear speed for this is called the critical velocity.

Critical velocity ≡ minimum velocity for an object to travel in vertical circle
and maintain its circular path against the force of gravity.

[AntonioLao]

By the strict rule of the principle of Occam's razor, physical reality needs only the existence of absolute acceleration and the space-time metric to describe everything else in the visible universe. Moreover, if there are a pair of these then it can represent the square of energy since for unit mass the absolute acceleration becomes the primary force.

[labelwench]

By the strict rule of the principle of Occam's razor, physical reality needs only the existence of absolute acceleration and the space-time metric to describe everything else in the visible universe. Moreover, if there are a pair of these then it can represent the square of energy since for unit mass the absolute acceleration becomes the primary force.

You provide me with many 'seeds' for potential growth, Antonio, though as yet, none have succeeded in proliferation.

Still, there are seeds, that in nature, may lay dormant for forty years or more, germinating when the conditions are exactly right. Perhaps the human mind is likewise, and that we have many 'seeds' yet within us, that shall make their presence known at the appropriate time.

From that perspective I enjoy reading your thread starts and following their direction, though, at times, little interface is achieved.

Do you still have your little cat? Has she mastered physics yet? (Believe it was a she, if not, my apologies to the cat....)

[AntonioLao]

Still, there are seeds, that in nature, may lay dormant for forty years or more

Thanks for these encouraging comments. Although the human circadian cycle is 24 hours the cicadas' life cycle of the North American species is 17 years while the south species is 13 years.

[AntonioLao]

Do you still have your little cat? Has she mastered physics yet?

As an addendum to yesterday's post. Afer six months, the little female cat is now a fully grown 20-foot-tree climbing predator for mockingbird's nest. She knows the amazing physics of how to climb back down, which must be seen to believe. But I dont know why she refused to eat seaweed anymore but still accept a tablespoon of canola omega-3 oil?

[labelwench]

As an addendum to yesterday's post. Afer six months, the little female cat is now a fully grown 20-foot-tree climbing predator for mockingbird's nest. She knows the amazing physics of how to climb back down, which must be seen to believe. But I dont know why she refused to eat seaweed anymore but still accept a tablespoon of canola omega-3 oil?

Cats do grow and mature rapidly, for a fact. Our little waif, which looked to be mature by bone structure, has added considerable weight and muscle tone, as well as regrown all of the hair on her underside. She does not appear to have given birth, and her hair loss was more down the complete length of both inner thighs to her toes, not the abdomen as would be the normal nursing pattern. Possibly related to her living conditions prior to moving in with us. I once had a female dog suffer major hair loss after whelping her pups in an underground burrow of her making. A skin scraping taken by the vet suggested possible hormone imbalance and costly medication for life. On noticing the hair growth returning at the site of the sample taken, I acquired and bathed the dog in an antiseptic used by the clinic prior to surgeries. In two weeks, she was fully regrown, and never suffered such indignity again. The dog had acquired a fungal infection from laying on the soil with her puppies.

Your cat no longer cares for seaweed? Perhaps there is sufficient salt and trace minerals now in her system, that such advises her she needs no more, or she may be supplying the needs previously provided by the seaweed from another source, as I expect she is proficient at hunting. That she still accepts the oil would be beneficial in avoiding or expelling the 'hairballs' that cats are prone to from their personal grooming.

While all cats seem adept at climbing up trees, I have known several to remain in a predicament of their making for several days. One time, our volunteer fire department was called upon to rescue a neighborhood cat. I missed that outing.......just as well. Likely I would have hosed the owner while the boys were rescuing the cat. I quite admire cats, they being very capable survivors. They certainly are competent at training people......

[AntonioLao]

Perhaps there is sufficient salt and trace minerals now in her system, that such advises her she needs no more

It is surprisingly true to me that animals especially cat can be their own nutritionist, simply knowing what to eat and what not to eat. For people, this skill must be learned painfully by making many mistakes but some never learn and maybe that is why doctors are among the wealthiest of professional occupations.

[labelwench]

It is surprisingly true to me that animals especially cat can be their own nutritionist, simply knowing what to eat and what not to eat. For people, this skill must be learned painfully by making many mistakes but some never learn and maybe that is why doctors are among the wealthiest of professional occupations.

From many years of trial and study in the venue of nutrition, my mother and I are of the opinion that much of the health related problems in the devoloped world stem from the food-like products we eat. Doctors have ever addressed symptoms before causes, and while they are most proficient in mechanical matters of surgery, sutures and mending broken limbs, there are a far greater number of concerns that need to be addressed at the source.

Ironic, that we sell over-the-counter remedies for stomach upset in the grocery store, when most such upset is eliminated by better choosing the combinations of food we would ingest, or the quantities or timing of their ingestion. In some cases, people have intolerances to certain foods, yet ignore what their body is telling them in favor of greater doses of antacid, which can then damage their esophagus beyond repair. Common 'heartburn' or 'acid reflux' is a symptom that can lead to serious health problems. People must better inform themselves in such regard.

[AntonioLao]

I stopped eating a heavy meal after 6 pm and I haven't had any problem with 'heartburn' since. I usually can get away with just one meal a day, preferrably in the morning.