The World Around Us | ||||||||||||||||||||
Mountain Views News, Sierra Madre Edition [Pasadena] Saturday, May 5, 2018 | ||||||||||||||||||||
THE WORLD AROUND US 11 Mountain Views-News Saturday, May 5, 2018 TAMING THE MULTIVERSE: Stephen Hawking’s Final Theory About the Big Bang Professor Stephen Hawking’s final theory on the origin of the universe, which he worked on in collaboration with Professor Thomas Hertog from KU Leuven, was published last week in the Journal of High Energy Physics. The theory, which was submitted for publication before Hawking’s death earlier this year, is based on string theory and predicts the universe is finite and far simpler than many current theories about the big bang say. Professor Hertog, whose work has been supported by the European Research Council, first announced the new theory at a conference at the University of Cambridge in July of last year, organized on the occasion of Professor Hawking’s 75th birthday. Modern theories of the big bang predict that our local universe came into existence with a brief burst of inflation—in other words, a tiny fraction of a second after the big bang itself, the universe expanded at an exponential rate. It is widely believed, however, that once inflation starts, there are regions where it never stops. It is thought that quantum effects can keep inflation going forever in some regions of the universe so that globally, inflation is eternal. The observable part of our universe would then be just a hospitable pocket universe, a region in which inflation has ended and stars and galaxies formed. “The usual theory of eternal inflation predicts that globally our universe is like an infinite fractal, with a mosaic of different pocket universes, separated by an inflating ocean,” said Hawking in an interview last autumn. “The local laws of physics and chemistry can differ from one pocket universe to another, which together would form a multiverse. But I have never been a fan of the multiverse. If the scale of different universes in the multiverse is large or infinite the theory can’t be tested”. “We predict that our universe, on the largest scales, is reasonably smooth and globally finite. So it is not a fractal structure,” said Hawking. The theory of eternal inflation that Hawking and Hertog put forward is based on string theory: a branch of theoretical physics that attempts to reconcile gravity and general relativity with quantum physics, in part by describing the fundamental constituents of the universe as tiny vibrating strings. Their approach uses the string theory concept of holography, which postulates that the universe is a large and complex hologram: physical reality in certain 3D spaces can be mathematically reduced to 2D projections on a surface. Hawking and Hertog developed a variation of this concept of holography to project out the time dimension in eternal inflation. This enabled them to describe eternal inflation without having to rely on Einstein’s theory. In the new theory, eternal inflation is reduced to a timeless state defined on a spatial surface at the beginning of time. “When we trace the evolution of our universe backwards in time, at some point we arrive at the threshold of eternal inflation, where our familiar notion of time ceases to have any meaning,” said Hertog. You can contact Bob Eklund at: b.eklund@MtnViewsNews.com. OUT TO PASTOR A Weekly Religion Column by Rev. James Snyder CHRISTOPHER Nyerges TREES THAT ARE IDEAL FOR URBAN PLANTINGS DEALING WITH TUESDAY, THE WORST DAY OF THE WEEK Christopher Nyerges [Nyerges is the author of “Nuts and Berries of California,” “Extreme Simplicity,” and “How to Survive Anywhere.” He teaches classes in foraging and sustainability. He can be reached at www. SchoolofSelf-Reliance.com.] In the natural forest, trees sprout up from the humus of the forest floor, and grow upwards to the light. Other older trees succumb to old age, or fire or lightning strikes, and eventually fall back to earth to become the fertilizer for other trees and vegetation. Life and death is the cycle of the forest. And in our urban areas, the life cycle of trees continues unabated, though the cycle is strongly controlled by the hand of man. Trees are continually cut down for developments and roads, and new trees are continually planted, sometimes for the mere appearance that the tree might provide. Are there any guidelines that we might follow for the ideal tree selection? Should we be thinking about much more than convenience and appearance when planting trees? Certainly all of us have read gardening and landscaping magazines which extoll the beauty of this or that “new” tree. But there are always many problems down the road by simply choosing a tree based on appearances. I prefer the long term path of sustainability, following the principles of permaculture where nature can take care of itself if we let it. When I first moved into a new home in Highland Park, some of my neighbors were surprised that I cut down a few trees that didn’t fit into my picture of productivity and sustainability. So let’s begin with what not to plant. EUCALYPTUS Though Eucalyptus has numerous medical and aesthetic values, it’s best left in its Australian homeland. I’ve researched extensively on the pros and cons of eucalyptus, and there are many reasons to never plant more eucalyptus trees in your Southern California yards. Eucalyptus trees suck up inordinate amounts of water, inhibit the growth of other vegetation under the trees, and actually cause the nearby soil to be less able to absorb water. However, if you must cut one down, the hard wood is good for building projects (like fences), and firewood. NATIVES Natives of any given area should be among your top choices. Here in Southern California, there are plenty of natives which also produce beauty and food. Native cherries are evergreen and they produce delicious fruits. Toyon is another native evergreen tree whose little red fruits can be eaten, if you take the time to learn how to prepare them. Elder tree is a deciduous tree that requires a bit more maintenance, but does produce edible and medicinal flowers and fruits. If you live in a dry and hot enough area, you should consider trees such as palo verde, mesquite, and jojoba as yard trees which also produce something edible. EVERGREEN VS. DECIDUOUS Landscapers are often the ones who have promoted particular trees for their beauty or convenience. They are the ones who’ve given us so many of the poisonous oleanders throughout Southern California. To be fair, the evergreen oleander requires so little maintenance that it is no wonder you see it along so many freeways. But if you have limited space and you want a productive yard, you’d not choose an oleander. For you non-gardeners, evergreens are those trees and bushes which never go bare, and always have some leaves, year-round. Deciduous means that they drop their leaves in the winter, and go bare. In some situations, a deciduous tree is a good choice in front of a south-facing window, so that it’s shady in summer, but sun is allowed into the home in winter when desired. Although a deciduous tree means that you might have to “clean-up” the fallen leaves, you should also consider the possibility of just letting the leaves lay there. After all, in the forest, the dropped and decaying leaves are what provides “food” for the trees, season after season. FRUITING OR NOT Yard spaces vary, and everyone’s needs vary as well. After I’ve selected natives for my yard, the next consideration is whether or not I want to grow some of my own food in my own yard. There are quite a few good choices for Southern California, and you should begin by making a list of those foods you enjoy eating. Then, cross off all that don’t grow well here in Southern California. My short list for this area includes avocadoes (each variety has different fruiting patterns), apples (Anna and Beverly Hills do well here), Santa Rosa plum, all citrus, figs, loquats, etc. LOCAL CONSIDERATIONS Regardless of where you live, there are local weather patterns and wind patterns that can affect the trees that you grow in your property. Before purchasing and planting new trees, you should consider the lay of your land, wind patterns, sun exposure, soil type, and perhaps dominant trees in the area. If you’re like me, you’ll want to plant for the long term, to create a mini-environment which creates a pleasant living condition, is easy to care for, and produces food and fragrance for everyone living there. Questions? Write to me. The worst day of the week for me is Monday. That means that I’m starting a new week and usually I have to start from scratch. All the things around me that annoy me, make me itchy and I have to scratch. I cannot wait until the weekend gets here. It is the weekend where I can enjoy myself the most. I know on Sunday, the best day of the week for me, I enjoy fellowshipping with other believers and preaching the word of God. I do not claim to be the best preacher in the world, I just love preaching. When Sunday comes around, I have an opportunity to preach. The rest of the week, however, is really a drag. It was Tuesday morning and I was a little down, drinking my coffee rather slowly and the Gracious Mistress of the Parsonage looked at me and said quite sternly, “What’s wrong with you?” It is a simple question and deserves a simple answer. From my point of view, it’s not really that simple. Tuesday is not really Monday, which is a little better. However, Tuesday is not Wednesday either. Tuesday is a very slow day in my week and, do not quote me here, but I think there are at least 30 hours on Tuesday. At least 30. Probably more. No matter what I do on Tuesday, it has nothing whatsoever to do with getting me to the weekend. Not only is this the slowest day of the week, but it is the least productive. If I do not do very much on Monday, I can always blame the fact that it’s Monday and I am just getting started. Tuesday I can’t say that. Monday should prepare me for Tuesday and Tuesday should be the most productive day of my week. Either, I’m not using Monday as I should or, Tuesday is just a bad day for me. I still did not know how to answer my wife. I was so gloomy that I really did not have any way to explain why I was so gloomy. “Why,” my wife said, “Tuesday is my favorite day of the week.” I just looked at her in my gloomy attire, grunted and couldn’t say anything to her. “I can get more done on Tuesday than any day of the week,” she boasted. I do admit she gets a lot done on Tuesday, but that has nothing whatsoever to do with me. She is the most talented multitasker I have ever known. She can handle up to a dozen projects simultaneously. Get her going, and she does not know how to stop. If I had her talent, I could conquer the world. However, after all, it’s only Tuesday and I was a little gloomy. On Monday, I can say I worked hard over the weekend and deserve to take a little bit of a rest. Nobody would worry about that not even my wife. But Tuesday? There is no excuse I have ever made that justifies not doing something on a Tuesday, I know because I have tried everyone on my wife. Tuesday is the dead point in my week. On Monday, for example, I can relax and just think about what I did over the weekend and how my sermon went. I cannot do that on a Tuesday. The weekend is already over and the next weekend is far down the road. I can sit in my chair, sigh deeply and think about how soon the weekend will get here. It could be that as you get older your brain does not function as much as it did when you were younger. I wonder if that is a good excuse? “Oh,” I could say to my wife, “I’m getting older now and my brain doesn’t function as it once did. I got to slow down a little bit.” She could look at me and say, “Your brain never functioned as long as I’ve known you. It has nothing whatsoever to do with how old you are. It has everything to do with a nonfunctioning brain.” So, I’m not going to give her an opportunity to opinionize on the functionality of my brain. My brain works enough to know that I better let that one alone. I have a lot of guilt on a Tuesday. I should be doing things, but I just cannot get the focus on what I should be doing. I’m looking down the week and I vaguely see Saturday approaching. It is so far down the road I am not sure I am going to get it in time. In time for what? I don’t know. At least on Wednesday the week is half over. Monday means a new week has started, but Tuesday does not mean anything. I was sitting in my chair drinking some coffee when my wife comes up and saw me and asked me, “Do you have anything to do?” Since my brain functioning was limited because of my age, I quickly responded, “No.” Before I realized what I had said, I was in deep trouble. My wife said, “Good, you can help me with some chores today.” As she led me to the garage, I thought of the Scripture, “Whatsoever thy hand findeth to do, do it with thy might; for there is no work, nor device, nor knowledge, nor wisdom, in the grave, whither thou goest” (Ecclesiastes 9:10). The weekend cannot come soon enough for me! The Rev. James L. Snyder is pastor of the Family of God Fellowship, 1471 Pine Road, Ocala, FL 34472. He lives with his wife, Martha, in Silver Springs Shores. Call him at 352-687-4240 or e-mail jamessnyder2@att.net. The church web site is www.whatafellowship.com. We’d like to hear from you! What’s on YOUR Mind? 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