Friday, December 6, 2013

Israeli security


* About a third of the December-4 Tennessean Opinion page was given to officials of the Jewish Federation of Nashville maligning a limited, provisional and reversible easing of sanctions on Iran in exchange for verified limitations of uranium enrichment by Iran. I believe that Israel, the US and most other nations would eventually regret failure to explore this opportunity to reduce danger in the middle east.
* We can intensify the harming of innocent Persian children, giving rise to another generation of malnourished, humiliated and resentful enemies. Or we can sit around a table with Iranian leaders imagining a future Iran in the community of peaceful nations, as prosperous as their people, myths and resources allow.
* Leaders often misconstrue their national interests, as demonstrated in the "Axis of Evil" speech and the invasion of Iraq. If my view is correct, Netanyahu misconstrues his nation's long-term interest, or he is doing a kabuki dance showing Iranian leaders the dark side of unsatisfactory negotiations.

Sunday, December 1, 2013

Football Concussions


* I have suspected for years that the modern football helmet is designed to protect the scalp and skull but to promote concussions. Modern helmet composition is described in: Types of Padding in Football Helmets . A modern helmet has a rigid outer shell, the space between the shell and head being filled mostly with stiff foam. This spreads the accelerating force from an outside blow over a wide scalp surface, defending the scalp and skull from deformation but with little dissipation or damping of the momentum.
* This design transfers linear and shearing momentum from an external blow to the skull as efficiently and quickly as possible, throwing the brain against the skull almost as much as possible and spinning the skull about the brain almost as much as possible (owing to the density difference between brain and cerebrosponal fluid and the lubricating effect of the cerebrospinal fluid between skull and brain). Thus the brain is mechanically deformed by bouncing in the skull and by shearing between brain and skull.
* In a rationally designed helmet, the shell itself would absorb as much of the blow as possible and it would transfer momentum from shell to skull as slowly as possible, thereby minimizing linear and shearing accelerations of the skull. Specifically, the shell would be flexible, resilient, tough and slippery. Its stiffness would be just sufficient to avoid striking the scalp under the maximal blow that might occur in a game, by collision with another helmet or a knee or the ground. The main material between the shell and scalp would be a specially designed bubble wrap, one layer with large loosely filled and crowded bubbles or several layers with smaller loosely filled and crowded bubbles. This design would allow the shell to deform, hence to absorb a blow with slowest possible transmission of linear and angular momentums from an outside blow to the scalp, hence to the skull and brain. Ideally, the hardest blow would bend the shell inward as close to the scalp as possible without hitting it.

Thursday, August 8, 2013

How I spent my retirement


* I retired early by academic standards, seeing that my scientific interests were no longer fashionable and hoping to have enough stamina to do something satisfying that ought to be done. What I did was recreational music, recreational inventing, recreational home restoration, recreational inquiry. It might have been more satisfying had one of these been remunerative. I imagined myself filling a societal need for uplifting recreation as technological advances in human productivity would shorten work weeks. I didn't anticipate that smart phones, social media and video games would come to dominate people's leisure time.
* Back in the mid 90s, I was in the "Road to Ruin Ramblers", that played in and was dismissed with cause from several lower-broad venues. Owing to this experience, song ideas came to me. One of them, "Repo Man" seemed to have commercial potential. Two that happened to be video'd were "Road Trip" and "One Christmas Eve".
* Well before the Road-to-ruin days, we had a garage band called "Outbound Freight", that was mostly social picking, though we played for the occasional birthday party or civic gathering. It occurred to me that a book of favorite country parables might be useful for future garage pickers, so I assembled such a book, called "Country Pathos, Country Soul". Getting licenses was too expensive without some kind of institutional collaborator, which did not materialize, so I dropped the project. There was also the "Budget Bluegrass Band", that was constituted in various configurations as needed since the 80s.
* My wife who immigrated from Germany in the 50s asked me to lead some Christmas songs for a gathereing of German Americans in the early 90s. Hoping to share those songs with regular Americans, I composed English lyrics and various arrangements for a bunch of them. I managed to talk the Nashville Parks Recorder Consort into performing several of these arrangements. For example, "Sweetly the bells" and "Holiest Night". They also performed my arrangement of "Silent Night".
* Several times in my life I was in the right place at the right time, eg when I encountered my mentor, Rollo Park, when I met my wife to be, Lieselotte Wilde, and when my church decided to create and present orchestral arrangements of music by members. Our music director, Michael Graham, arranged several of the German Christmas songs that I had worked on, incluiding: Sing and Ring and Quietly Rustles the Snow.
* Back in the late 90s, I began trying to engage people in gospel singing with bluegrass accompaniment. I assembled a group, "Gospelaires", that performed in my church's less formal services about once per quarter. Eventually, we established Wednedsay-evening singalongs during the summers in Woodmont Christian Church. At about the same time, we established the Second-Sunday Singalong in the Bellevue Christian Church. As these two programs progressed, I worked on a two-volume song book of bluegrass-compatible gospel songs and hymns one volume containing regular scores for singers, the other containing lyrics and chords for pickers.
* Also back in the 90s, I tried out several dobro capos and, finding none that suited me, I designed my own. Eventually, I thought others might like my design, so I patented it and set out studying machine-tool technology so as to manufacture it. I produced several in each of five sizes, as resophonic guitars come in several specifications. The capo is essentially a modified scalene-triangular prism with maximal difference between maximal and minimal heights. To easily make one height half way between the maximal and minimal, it was conventient to derive a formula for characteristics of a triangle of known heights.
* Having seen that I could produce and prosecute a patent application on my own (text, drawings, claims) I contemplated an invention whenever I had trouble with a project or when an untoward event occcurred that might be ameliorated by some new product. In revising some electrical wiring in my garage and basement, I decided it would be easier to join several larger wires if the junction box were shallower. It occurred to me that the solid elements of ammunition could be labeled hence traceable to the person who bought it retail.

Saturday, August 3, 2013

Edward Snowden


* "Unwelcome truth is better than cherished error", said Edwin Conklin, president of the American Association for the Advancement of Science back in the 30s. "As regards civilization, truth is better than pretense, deception and gratuitous secrecy", say I, a senile observer.
* After the intelligence failings of 9/11/01, I assumed that our NSA would henceforth store and analyze communication data gathered by service providers in the course of their business. Considering our vulnerabilities, it's what I would do, if I had the responsibility to minimize future attacks by hate groups.
* The existence of this pragmatic program should not have been classified, since any constitutionally questionable or abuse-susceptible program employing thousands will inevitably be revealed by a conscientious worker.
* There is no evidence that Snowden's revelation has significantly reduced our security, since no concerned person doubted NSA's data gathering. It is almost certain that his revelations and resulting transparency will improve our democracy.
* Owing to gratuitous secrecy, we find ourselves compelled to prosecute someone who has done us more good than harm. If I were the president, I would voice kabuki protests to any government granting asylum to Snowden, while hoping he stays safely abroad long enough for us to forgive him.
* If the administration and military can forgive themselves for revealing how they located Bin Laden and how they discovered al-Qaeda's recent plan to attack oil wells, ports and diplomatic missions, then they can surely forgive Snowden.

Ellipsoid Tension

A couple of decades ago, I became obsessed with the relation among pressure in an ellipsioidal chamber, shape of the chamber and the distribution of tensions in the chamber's walls. The essential results of that obsession are presented below. Physicists might find these orderly-looking/symmetrical equations beautiful, but I don't know whether they will be useful.

Friday, August 2, 2013

Can we talk?

Economics, society, polictics, science, civilization, religion -- fun to think and talk about. It's like a well known dermatologists facetiously said in favor of his profession: it's endlessly profitable, since your patients never get well and never die.

Monday, May 6, 2013

Conventional wisdom from both sides


* For most of a century we have led the free world--essentially compelled to choose sides in numerous foreign conflicts within and across borders. What are the merits of having that role and of various ways of playing that role? Could we have led by example, creating a just and prosperous society that all countries, religions and tribes would gladly emulate? Could we have stayed out of Vietnam, Iraq, the Arab Spring? In these cases, did we support a process that helped the neediest inhabitants? Can we ignore humanitarian crises or threats to allies? Must we care which thugs rule a foreign country? Could terrorism be addressed better as a law-enforcement problem rather than a military problem? Consider the blood and treasure spilled in Afghanistan for a crime that killed less than 3000/decade and humiliated us, a nation that loses 100000/year to medical errors, 40000/year to crime, 30000/year to accidents. Can we prevent nuclear war forever?
* It is widely agreed that unemployment is the major cause of social problems, such as self-destructive excesses, family dissolution, homelessness, demoralization, crime, riots, revolution. It's worth considering the history and dynamics of these problems. Virtually all pundits and leaders believe that too much unemployment is due to too little economic growth, and they propose various remedies to promote economic growth. What are the accepted mechanisms of accelerating economic growth? Are they effective, sustainable? What are their effects on national debt, personal debt, trade imbalance, resource depletion, migrations? How could employment be improved with less of these adverse effects (regulate multistate retailers, print some debt-free money, reduce work week)? Isn't it up to each sovereign country to address its own economic problems? Can our generation justify a stuff throughput about twice what's needed for health and happiness?
* The world's population keeps increasing despite resource depletion and waste accumulation. Production technology has kept wealthier populations from sinking into civil unrest and police/military governance. Any failure of the important technological systems or any failure of agriculturally essential natural support systems could lead to conflict between nations, among population segments and between populations and their governments. We don't have convenient energy reserves or fertilizer-component reserves for more than a century. Isn't it high time for leaders of all kinds to promote population-growth restraint and energy-consumption restraint? What about phosphate conservation? Can balance between destruction and restoration be achieved with gentle incentives? Humanity's greatest enterprise, civilization, is at risk.
* What are the other great challenges that really matter?

Tuesday, March 12, 2013

Monetary/Fiscal System


* I wonder occasionally about the natural history of money.
* Do all dollars come from the Federal Reserve as loans to big banks? Why?
* Can government create money? Why?
* By what mechanisms do dollars loaned by the Fed cease being owed back to the Fed, hence available for us to keep? What fraction of the money supply is owed to Fed and what are other fractions?
* Is there a relation between people's savings and government debt?
* Are savings in the money supply?
* What do profits do to the money supply?
* What are the roles of money supply and commodity scarcity in inflation?
* Compare the efficiency of supply-side and demand-side economic controls.
* What would be the harm of redistributing wealth from the top of the pyramid to the bottom? Consider effects on resource consumption, trade balance, immigration.

Thursday, February 21, 2013

My Dick Cheney Ramblings


* Recently Dick Cheney has been interviewed by serious hosts, saying about the same thing each time--essentially that Barack Obama is responsible for declining American influence abroad, rising Muslim-Brotherhood power, Iran's progress toward acquiring a nuclear weapon, inadequate economic recovery, perils of Israel, weakening of our military, deaths of our representatives in Benghazi, lying about it, exploding government debt--this from the architect and guiding hand of the administration that took the nation from unprecedented prosperity with budget surpluses to economic collapse with gratuitous budget deficits, that made no effort to thwart the 9/11 attacks despite warnings, that failed to destroy al-Qaida and much of the Taliban when the opportunity presented itself, that led us into a costly criminal war in Iraq.
* There isn't the slightest evidence that the Cheney administration would have led the world and guided our economy for the past 4 years better than did the Obama administration. The Republican counter-intuitive supply-side economic theory turned out to be wrong after all. Unfortunately this theory still dominates the economic conversation 4 years after the Cheney administration and 3 decades after Reagan embraced it. That's why Obama did not steer our monetary and fiscal policies further from the right and sooner.
* Cheney presents no convincing alternative to our light touch in the Arab-spring revolutions, though he implies that a more robust projection of our power could have influenced outcomes for the better (for whom?). In my opinion, we (Hillary Clinton) said too much in favor of the rebels, who may become our enemies, and too much against former leaders with whom we had previously been reconciled. Hosni Mubarak's government was more gentle and restrained than we would likely have been under comparable circumstances, and they shouldn't have been vilified or prosecuted as criminals. Some casualties are normal and expected in a mob uprising. We should have incentivized and facilitated the peaceful relinquishment of power and comfortable retirement of leaders after an honest election in those hot spots.
* It seems possible that mob uprisings may become the new norm in countries where expectations greatly exceed economic opportunities, perhaps soon most countries, now that social media and smart phones are ubiquitous. Some day we may discover a social/economic/governance system that better satisfies populations, but that will face many headwinds--deep flawed economic theories, tribalism, beneficiaries of status quo in a wealth/power vortex.

Friday, February 1, 2013

Vivat Veritas

* In earlier essays, I've contemplated the social and economic benefits of elevated truth/lies ratios.
* For example: Lies and conventional wisdom
* and Rupert Murdoch punishment
* and perhaps Reaganistic economist deceives
* I wished for some way to oppose the deception-industrial complex. Well others have been laboring in this vineyard. They have produced a real-time fact checker. I'd love to see it deployed as imagined in my earlier essays referenced above.

Wednesday, January 16, 2013

Steve Gill's Legacy


* Although Steve Gill hosted a talk-radio show for about 15 years and was a leader of the anti-Tennessee-income-tax protest early in that tenure, I first heard his voice about four years ago, after Obama's election victory. I was shocked that someone could despise our new president so viciously before any new policy had been enacted. As I recall, he characterized Obama as vile and despicable or vile and contemptible. That pretty well snuffed my inaugural buzz, my dream of national reconciliation.
* Since then, I've tuned in to Gill's radio show two or three times per month, because he awakened my curiosity about the role of tribalism (hate, contempt, self-righteousness, etc) in a society. Clearly there is an appetite for it. Is there a need for it? Unconstrained it can lead to retribution or genocide.
* Gill lays all economic ills at Obama's feet, though they antedated Obama's administration. For example, Reagan's tax and spending programs increased government debt 300%; Obama's will increase it about 80%. Reagan granted amnesty to all undocumented aliens; Obama is contemplating comprehensive immigration reform. Gill occasionally used dialect to belittle black people, providing succor for white supremacists.
* Gill is brilliant at recalling names and events for his narratives, which are laced with sarcasm, irony and exaggeration to the point of dishonesty. I don't understand why someone as talented, intelligent and fortunate as Steve Gill would grovel in gratuitous hate. He has spent the last 1/4 of his life persuading successful people to resent unsuccessful people. Is that a legacy to be proud of?

Friday, January 4, 2013

Photons


* And while we are at it, what about the photon.
* It is an element of electromagnetic energy which may be light and which in any case travels at the speed of light.
* How does it get made, what are its dimensions in transit, how does it get absorbed, how do its properties in transit relate to its energy content?
* Why doesn't it spread out in transit? Is it possible that no electromagnetic wave traveling in space spreads out except as its elements origially started out in different directions?
* Does the Hall Photon Theory agree with all observations? Is this discussed?

Thursday, January 3, 2013

Shape of the Cosmos


* Judging from popular media, astronomers are developing tools for observing matter and energy near the edge of the universe. Based on that talk, I contemplated special properties of fields and trajectories at the edge of the universe, eg violations of inverse-square rules and bent photon paths. Attempting to discuss these matters with physics experts, I was shut down before getting started. They say that the universe has no edge. It is bent and joined in a fourth dimension, such that no path leads out. This was explained by analogies.
* A straight string has ends which an ant could come to and jump from, but a looped string has no end for such escape. A flat plane has edges which an animal could come to and jump from, but that plane bent into a sphere and fused has no edge for such escape.
* Analogously, if the universe began by expanding into pre-existing cartesian space, then it would have an outer extreme limit beyond which photons and accelerated particles could escape. But (they say) the universe expanded into its own self-generated or self-contained space which is curved/bent on itself such that all trajectories are within its confines. The idea of space outside the universe or existing before the big bang is meaningless. Perhaps time before the bang or outside the material universe is meaningless. This is my attempt to convey the idea they imparted to me.
* With this theory in its simplest form as an axiom, we can postulate some implications:
1. No point in the universe is demonstrably not at the center of the universe. Every point is effectively as much at the center as any other point.
2. If light were fast enough or the universe small enough, the most distant thing that an observer could see would be itself. If our solar system is the point in question, one need not make this conditional on unrealistic light speed or unrealistic universe size, for photons have been leaving our solar system since early in the the universe's history.
3. Accordingly, the observer would see itself smeared over its sight horizon as the inside surface of a sphere enclosing the whole universe.
4. The most distant object an observer could possibly witness is itself.
5. If an observer leaves a larger body and travels in a straight line in any direction, it will be traveling both away from and toward that larger body, and that larger body would appear to be getting smaller (less wide than the sight horizon) rather than bigger as the observer gets closer, up to a point. That is to say, the angle subtended by the body's diameter in the observer's view will get smaller, until a critical distance is reached where getting closer widens the image.
* These corollaries seem paradoxical--hard to swallow. Therefore, I ask: What is the compelling reason to accept this bent/curved-universe theory? Why not imagine a big bang in a pre-existing cartesian-space-time coordinate system.

Wednesday, January 2, 2013

Nonprofits & PayPal


* I call on anyone associated with a worthy nonprofit to encourage provision of the convenience that I now insist on.
* Between Christmas and New Year's Eve, I attempt to support almost 60 nonprofits, those working to preserve and enhance aspects of civilization that I care about. In earlier years, I could do it with checks in envelopes. Now, I need the convenience of email and PayPal. Many of my target nonprofits don't provide this convenience, so they don't get my contribution. Instead, they get the note below sent to their CONTACT addresses.
* My Donation-Policy Note:
* In my senility (cataracts, arthritis), I no longer write checks to nonprofits, and I don't use a credit card on line.
* I respond to emails from organizations devoted to family planning and population restraint, provided they don't solicit via regular mail and provided their email solicitations have PayPal buttons. With these same provisions, consideration is also given to organizations that support local culture, help the needy, extend justice or those to which I have an obligation.
* In summary, I use only PayPal to contribute.
* Please, send no solicitations lacking a PayPal button.
* Please, no post-office mailings.
* I try to support more than 50 nonprofits, so I don't have time for paper or for typing my data.
* This year I supported about 23 nonprofits. The following are those that I attempted to support and would have supported if they had the PayPal button: American Indian College Fund, CEDPA, Common Cause, Cumberland River Compact, Davidson College, Engender Health, Fisk University, Friends of Radnor Lake, Friends of UNFPA, Friends of Warner Parks, Girls Inc, Guide Dog Foundation, Heard Library, International Bluegrass Music Museum, Legal Momentum, NARAL, NOW, Nashville Humane Assoc, Nashville Public Television, Nashville Opera, Nashville Rescue Mission, Nashville Symphony Orchestra, Nashville Zoo, National Women's Law Center, PCI-Media Impact, Pathfinder International, Peabody College, Planned Parenthood, Planned Parenthood of Middle and East Tennessee, Population Action International, Population Connection, The Population Council, The Population Institute, Room in the Inn, Second Harvest Food Bank, The Seeing Eye, Tennesseans for Fair Taxation, United Way, Vanderbilt University, W.O. Smith Music School