Sound is the transfer of energy in the form of waves. The waves travel by bumping air molecules together. The air molecules move back and forth, but the wave of energy moves outwards. The speed with which the waves travel through air depend solely on temperature. Waves will travel faster in warmer air. In general, at 68 F (20 C) sound travels at 1130 ft/sec (344.4 m/sec.) Sound travels slower in gases than in liquids and more slowly in liquids than solids. All sound waves have a specific amplitude and frequency. Amplitude is the height of a wave. Frequency is the number of waves that pass a point in a second. This is affected by how quickly the wave source is vibrating, which determines how close the waves are together. For sound, the higher the frequency, the higher the pitch of the sound. The lower the frequency, the lower the pitch of the sound. What we hear depends on the properties of the sound wave that enters our ears. A loud sound represents a high amplitude sound wave, one with lots of energy. Musicians use a letter code to describe the pitch of a musical sound. The musical scale begins with an interval called an octave. This is the interval between middle C and high C, for example. An increase in pitch of one octave represents a doubling of the frequency of the wave. When we speak, our words have a particular wave shape. Computers can imitate sounds, including human speech, by recreating the wave shape. For example, by reversing the wave shape, the sound is also reversed. A person can be made to speak backwards by simply reversing the sound waves. An echo is a sound we hear after it is reflected, meaning bounced back from an object. GOT OFF GOOGLE.

BUYER: Rob Morrow LOCATION: Stassi Lane, Santa Monica, CA PRICE: $4,300,043 SIZE: 4,131 square feet, 5 bedrooms, 4 bathrooms DESCRIPTION: Stunning architectural designed by Melinda Gray AIA. Spectacular New Architectural home designed with unparalleled attention to detail. No expense has been spared in creating this dramatic environment of wood, glass and steel. State of the art Boffi kitchen. Open loft style space with soaring ceilings. Pocket doors open to a beautifully landscaped yard with pool, spa and fire pit. The house is pre-wired for sound including the 1,100 sqft basement that could be the perfect media room. YOUR MAMAS NOTES: There are a few people we'd like to thank for their input and assists on this posting. First off, the incomparable Mr. Big Time over at Big Time Listings who included this property in his list of potential Jason Priestley homes, which first made us aware of this house and its possible celebrity ownership. Secondly we'd like to thank Lucy Spillerguts who so kindly and generously shares massive amounts of information and real estate gossip with Your Mama. And finally we'd like to thank Our Fairy Godmother in Beverly Hills. You know what you did for us hunny. Alright then. Do all the children know who this Rob Morrow person is? In the early 1990s he starred in the television show Northern Exposure, where he played a nebbishy doctor from New York who, for some reason we can't recall or care about, was required to set up a private practice in a remote Alaskan town filled with a bunch of eccentrics. Hilarity ensued, natch. This was the show where Your Mama learned to hate John Corbett. Not the actor himself, but the cloying character he played who quoted poetry and philosophy over the radio while working his hokey brand of long-haired sexy Zen. Ack! We stopped watching this show because of that character and have never been able to separate the guy from that silly character. Even when he played Carrie's paramour on Sex and the City. We had to plug our ears, shut our damn eyes, or turn off the boob toob when he came on the screen. At any rate, Your Mama digresses and we're here to discuss Rob Morrow, not Mister Corbett, so let's move on. When the show ended, Mister Morrow went on to ply his trade in a dozen or more television and film projects Your Mama has neither seen nor heard of. Then, in the year 2005 Mister Morrow landed a plum role as an FBI agent on the show Numb3rs. Theshow has provided him with a regular job and a paycheck fat enough to afford him a $4,300,000 house in Santa Monica's Rustic Canyon, which just happens to be one of Your Mama favorite 'hoods in Los Angeles. The not quite Santa Monica not quite Pacific Palisades location gives Rustic Canyon a feeling of blissful remove. Not to mention the lovely ocean breezes that waft up the canyon and leave the smell of salt strong on the air. Property records show that this house was purchased in February of 2007 for the unusual price of $4,300,043. The newly built moe-derne house with 5 bedrooms and 4 bathrooms was listed at $4,595,000, so someone negotiated a decent price reduction for Mister Morrow and the Missus. Savings enough to at least fill the place with furniture. Now y'all know Your Mama likes modern houses. But this one we're not so sure about. The location is great (if you like the far West Side), and there are plenty of nice features in the house like radiant heating, soaring ceilings, and a gorgeous Boffi kitchen. Of course we also love and covet the huge sliding glass doors on the ground floor which open the interior spaces up to the pool terrace creating a huge covered porch like space. It's the stairs, however, that cause us great concern. Three floors straight up. AND a basement. No elevator. At least no mention of an elevator that we could find. Imagine all the huffing and puffing the cleaning lady is going to be doing dragging mops, vacuums, and other cleaning supplies all up and down those stairs. Your Mama sincerely hopes the Morrows have been able to find an athlete to be their maid, because otherwise they're going to come home and find Clarissa the cleaning lady dead on the stairs from a massive coronary attack. And let's not even discuss the extra money the nanny is going to insist on being paid for having to chase a child around in that house. Again, Your Mama hopes the Morrows have found a marathon runner to be their nanny, because the gurl is going to need a good set of lungs and uncommonly strong let muscles to navigate all those stairs chasing after children day after day. Speaking of children, let's discuss the Morrow off spring before we sign off. Now Your Mama has nothing against celebrities who name their kids after fruit and berries. We find the unusual names very amusing, and sometimes even clever. We can even appreciate some of the truly bizarre ones, like Penn Jillette, who thoughtfully gave his daughter the name Moxie Crimefighter. Mister Morrow and his wifey Debbon have also given their child a "unique" name. One that is surely going to damn her to musical theater hell for the rest of her life and may even result in a beat down one day at The Crossroads School. See hunnies, the Morrow's six year old daughter's name is Tu. As in Tu Morrow. Ponder that one for a while. Your Mama wishes the Morrows lots of happiness and health in their new home. Especially the health, because y'all are going to need it unless you install an elevator. I GOT OFF THE INTERNET

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"Can all of this wonderful life extension continue? Will average lifespan continue to outpace projections? More importantly, can we find a cure for aging altogether or will the bubble burst like some overbought technology sector? Perhaps lifespan will peak at some natural limit. While the answer remains unclear, humans are healthier and are living longer than ever before. Average Human Lifespan "Out, out, brief candle! Life's but a walking shadow" - William Shakespeare With few exceptions, 30,000 days is the average human lifespan - 40,000 if you're lucky. However, two-thousand years ago average life expectancy was less than 20 years or about 7,000 days. It is difficult to imagine, but most of our ancestors kicked the bucket before our modern legal drinking age. Bacteria, predators, accidents, extremes in weather and the lack of a reliable food source meant humans led short, dirty, brutal existences. That is if they survived birth at all. Infant mortality rates ranged from 300 or 400 deaths per 1,000 live births in the 18th century, while we see only seven per 1,000 today. In 1796, life expectancy hovered around 24 years. A hundred years later it doubled to 48. In our modern world of air conditioners, hand washing and booster shots, you have a good chance of living 63 years, which is the world average. However, for those fortunate enough to live in a first-world country, lifespan jumps considerably. Japan for instance has the longest average life-expectancy of 80 years, according to government figures. Similarly, in the United States, a baby born today can expect to live to 77. Interestingly these numbers continue to rise not only in developed countries but all over the world as well. When statistics are placed to a graph, the numbers speak for themselves. (Figure 1. above) Separating the figures by gender, men on average live to 72, while women live to 79 in the US, a difference of seven years according to the 2001 CIA World Factbook. This difference is not fully understood, but it has something to do with genetics and hormonal differences between the sexes. Scientists are looking into to such difference for clues about the aging process. Maximum Human Lifespan "Over half the baby boomers here in America are going to see their hundredth birthday and beyond in excellent health," says Dr. Ronald Klatz, founder and President of the American Academy of Anti-Aging Medicine. "We're looking at life spans for the baby boomers and the generation after the baby boomers of 120 to 150 years of age." (4) According to a longevity study conducted by John Wilmoth (5), a UC Berkeley associate, the "oldest age at death for humans has been rising for more than a century and shows no signs of leveling off." Wilmoth and fellow colleges from the United States and Sweden researched the national death records in Sweden and found an increase in the average maximum lifespan each year since 1861. This finding calls into question the 120 lifespan limit. "We have shown that the maximum life span is changing. It is not a biological constant. Whether or not this can go on indefinitely is difficult to say. There is no hint yet that the upward trend is slowing down," writes Wilmoth. Wilmoth's statements about maximum lifespan run counter to a commonly held belief that there is a natural limit. "Those numbers are out of thin air," said Wilmoth. "There is no scientific basis on which to estimate a fixed upper limit. Whether 115 or 120 years, it is a legend created by scientists who are quoting each other." says Wilmoth. Will the Trend Continue? "Aging is a biochemical process and humans will learn how to intervene in it and slow it down" Nick Bostrom, founder of the World Transhumanist Association predicts in his article Case Against Aging(1). Optimistically, Bostrom see the elimination of aging as "theoretically possible." While it may not be within reach now, it will be soon. Current trends seem to prove Bostrom correct. Evidence for an ever increasing human lifespan -- as a result of advances in medicine and improvements in quality of life -- is quite impressive. Not only is there mounting statistical evidence for a continued upward trend, there's evidence this trend is actually accelerating. V?in? Kannisto, a Max Planck Institute demographic researcher has compiled statistics from 28 countries. He found that as life expectancy rose during the 20th century the "pace of mortality improvement at older ages accelerated." Kannisto notes that even after age 100 "death rates are falling." (2) "The conventional view is that future gains in life expectancy cannot possibly match those of the past," says Jay Olshansky (3). Olshansky believes the "sustained improvement" we're seeing in lifespan goes beyond this onetime statistical abnormality. "Reinforcing processes may help sustain the increase in record life expectancy" Olshansky says. Greater attention to health and more resources spent to combat diseases at all stages in life will result in a net increase in the number of people surviving into older age. 122 years ? Current Lifespan Record The only verified case of a human to live beyond 120 years was Jeanne Calment. She was a Frenchwoman who died in 1997 at 122 years. She rode a bicycle to the age of 100 and once met Vincent Van Gogh in her father's painting shop. Her longevity is likely linked to her genes as well as her lifestyle and the advance of medical technology during her lifetime. Her father lived to the age of 94 and her mother to the age of 86. Oldest Living Person Today Keeping track of who's tthe oldest, you need to look to Japan. According to Guinness World Records, Japan is home to the world's oldest woman, Kamoto Hongo, who turned 115 in 2002; the oldest man, 113-year-old Yukichi Chuganji; and the community with the highest proportion of centenarians ? 33 people per 100,000 in Okinawa. "One of the assumptions is that life expectancy will rise a bit and then reach a ceiling it cannot go through" says Mr Oeppen (4), senior research associate at the Cambridge Group for the History of Population and Social Structure. "But people have been assuming that since the 1920s and it hasn't proved to be the case." However, Oeppen is quick to point out, "This is far from eternity: modest annual increments in life expectancy will never lead to immortality." Carefull what you say about immortality, it could put you in the hot seat of the nation's top bioethics advisor, Leon Kass. Bush's leading scientific advisor has gone out of his way to lambaste the possibility of immortality. Kass recently traveled to Toronto where he gave a conference entitled "Why not Immortality"(5). While his arguments against immortality are framed in eloquent phrases of modern bioethics, the core message is clear - Kass thinks that extending healthy human life is a bad idea. "Confronted with the growing moral challenges posed by biomedical technology, let us resist the siren song of the conquest of aging and death." Kass says. On the other hand, there is a growing professional contingency willing to speak up on the topic of immortality. William Faloon,(6) president of the Life Extension Foundation, says, "History has often shown that before a major breakthrough occurs, experts go out of their way to deny that it will ever happen." Lifespan projections do not take into account "dramatic advances in the biomedical sciences." Fallon says. If these breakthroughs do come about "life expectancy will be significantly higher". Jay Olshansky, author of The Quest for Immortality, expresses his optimism, "We see ourselves on the cusp of the second longevity revolution." However, Olshansky is not prepared to declare that immortality is in sight. "Short of medical interventions that manufacture survival time," Olshansky says, "there is very little you can do as an individual to extend the latent potential for longevity that was present at your conception." (Of course, there is a great deal that each individual can to to make " I GOT THIS OFF THE INTERNET GOOGLE