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Mountain Views News, Sierra Madre Edition [Pasadena] Saturday, May 19, 2018 | ||||||||||||||||||||
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THE WORLD AROUND US 11 Mountain Views-News Saturday, May 19, 2018 HELICOPTER TO FLY ON NASA’S NEXT MARS ROVER MISSION NASA is sending a helicopter to Mars. The Mars Helicopter, a small, autonomous rotorcraft, will travel with the agency’s Mars 2020 rover mission, currently scheduled to launch in July 2020, to demonstrate the viability and potential of heavier-than-air vehicles on the Red Planet. Started in August 2013 at JPL as a technology development project, the Mars Helicopter had to prove that big things could come in small packages. It weighs in at four pounds. Its fuselage is about the size of a softball, and its twin, counter-rotating blades will bite into the thin Martian atmosphere at almost 3,000 rpm—about 10 times the rate of a helicopter on Earth. The helicopter also contains built-in capabilities needed for operation at Mars, including solar cells to charge its lithium-ion batteries, and a heating mechanism to keep it warm through the cold Martian nights. But before the helicopter can fly at Mars it has to get there. It will do so attached to the belly pan of the Mars 2020 rover. “The altitude record for a helicopter flying here on Earth is about 40,000 feet. The atmosphere of Mars is only one percent that of Earth, so when our helicopter is on the Martian surface, it’s already at the Earth equivalent of 100,000 feet up,” said Mimi Aung, Mars Helicopter project manager at JPL. “To make it fly at that low atmospheric density, we had to scrutinize everything, make it as light as possible while being as strong and as powerful as it can possibly be.” Once the rover is on the planet’s surface, a suitable location will be found to deploy the helicopter down from the vehicle and place it onto the ground. The rover then will be driven away from the helicopter to a safe distance from which it will relay commands. After its batteries are charged and a myriad of tests are performed, controllers on Earth will command the Mars Helicopter to take its first autonomous flight into history. “We don’t have a pilot and Earth will be several light minutes away, so there is no way to joystick this mission in real time,” said Aung. “Instead, we have an autonomous capability that will be able to receive and interpret commands from the ground, and then fly the mission on its own.” The full 30-day flight test campaign will include up to five flights of incrementally farther flight distances, up to a few hundred meters, and longer durations as long as 90 seconds, over a period. On its first flight, the helicopter will make a short vertical climb to 10 feet, where it will hover for about 30 seconds. As a technology demonstration, the Mars Helicopter is considered a high-risk, high-reward project. If it does not work, the Mars 2020 mission will not be impacted. If it does work, helicopters may have a real future as low-flying scouts and aerial vehicles to access locations not reachable by ground travel. Mars 2020 will launch on a United Launch Alliance (ULA) Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida, and is expected to reach Mars in February 2021. The rover will conduct geological assessments of its landing site on Mars, determine the habitability of the environment, search for signs of ancient Martian life, and assess natural resources and hazards for future human explorers. You can contact Bob Eklund at: b.eklund@ MtnViewsNews.com. OUT TO PASTOR A Weekly Religion Column by Rev. James Snyder CHRISTOPHER Nyerges WHITE ROOFS AND GARDEN-LAWNS WHAT WOULD WE DO WITHOUT RAIN? [Nyerges is the co-author of “Extreme Simplicity: Homesteading in the City,” and other books. For more information about his books and classes, contact him at Box 41834, Eagle Rock, CA 90041, www.ChristopherNyerges.com, or www.wtinc.info.] During a climate-change symposium back in May, the U.S. Energy Secretary Steven Chu said that the Obama administration wants everyone to paint their roofs white. White roofs would keep the houses naturally cooler, he said, and would reduce the need for air conditioning, and if all houses had white roofs, it would have the equivalent energy savings of removing all cars in the world from use for 11 years! Wow, that would be quite an energy savings, though I’m not certain how Chu came up with that statistic. Nevertheless, this is one of those old-fashioned ideas which should have caught on decades ago. When I moved into a new home in 1987, I struggled to pay the mortgage and just didn’t have the money for the needed new roof. When it rained those first years, we had pans all over the living room collecting the water. Our short-term solution to the bad roof was to purchase a white “liquid rubber” product which I brushed on over the failing asphalt shingles. This cost a fraction of the cost of a new roof, sealed all the leaks, and left the roof brilliant white, which meant that our home would probably be highly conspicuous to any helicopter passing through the neighborhood. We learned that this product was ideal for sealing up all the small leaks, and was specifically manufactured for trailer dwellers who have metal roofs which get very hot in summer. It turned out that our overall inside temperature dropped a minimum of 15 degrees in the summer. Whereas the beastly inside summer heat required a few weeks of using the air conditioner, we found that once the roof was white, we barely turned on the air conditioner all summer. Since then, we have strongly recommended such a roof to anyone wanting to naturally keep cool in the summer. It really works. There are several products currently available for this use, made by Henry’s and available at Home Depot and other home improvement stores. We wrote about this white roof experiment in our 2002 book, “Extreme Simplicity: Homesteading in the City,” which I assume all readers of this paper already possess. Though our experiment taught us that a white roof definitely reflects heat from the roof, and keeps the house cooler, we found that many visitors found the white color unattractive. Still, such a simple solution to one aspect of our energy problem should be given much more attention by our current administration, and should be taken to heart by home-owners LAWNS I have never been a big fan of lawns. Though on certain rare occasions they can provide a place to play ball with family members, they are typically a patch of soil in which we toil to create what we regard as an aesthetically pleasing area, but which is otherwise not usable. When I moved into a new home in 1987, one of my first tasks was to have a tree pruner dump an entire truck- load of wood chips onto what was the lawn area. We gradually turned the area into a combination wild food, fruit orchard, and fragrant plant area. It requires minimal maintenance, and produces food and herbs for daily use. Water from our washing machine drained into that area, and one of our kitchen-scrap composter was also located there. We have noted over the past decades that more and more people are wisely recognizing that the front lawn area is far more useful for vegetables, fruit trees, and drought-tolerant native plant gardens that can be left alone to survive on their own. If you are undecided about the use of your lawn, the water and power companies are trying to convince you to give up your lawn. Drought or no drought, we live in an area where here is enough local water for one in four residents. We must live a drought-tolerant life-style, all the time. Let’s face it. We’ve got way too many people trying to use a limited resource here in this coastal desert plain. So you should consider converting your lawn area to drought-tolerant plants – things like jade, cactus, Peruvian mint, etc. Most of the first chapter of the “Extreme Simplicity” book is about how we converted our lawn into a mini-self-sustaining eco-system. We did it because it was right to do so, and it made so much sense, ecologically and economically. We did it then – 30 years ago – because it was the right thing to do. Today, it’s still the right thing to do, and by so doing, there will be more precious water to use for the things that are really important. Sometimes I cannot help being a grouch. I guess it is what happens to a person when they get older. They get older, grouchier and grumpier. With that in mind, I guess I qualify for being an old geezer. The past several weeks I was grouchy about the weather. What else is there to grouch about these days? I would grouch about politics, but it is a world of craziness. I suppose good people go to Washington, DC, but they don’t stay good for long. Therefore, I have given up grouching about politics and politicians and such. One of the good things about grouching about the weather is it there is nothing you can do about the weather. You may not like the weather. You may want a different kind of weather. However, there is actually nothing you can do to change the weather on the outside. Through the years, I have realized that if I wanted to bet on which day it was going to rain, it would be the day I wash my car. When I am out there washing my car, Mother Nature is looking down on me grinning one of her sarcastic grins, knowing that she is going to send rain my way that day. I still like grouching about the weather. After all, you need to grouch about something and I would rather grouch about something that I had nothing at all to do with then something I could change. The other day I started downtown and the sky was bright and sunny. Twenty minutes later, it was raining cats and dogs. Three weeks ago at the church, we bought a brand-new lawnmower. We have not been able to use it yet so we do not know if it really works or not. The rain has come down for three weeks. Thinking about the rain condition, we are in I often wonder about how Noah felt about the rain in his day. He built an ark and there was not a drop of rain to be found. He told everybody that it was going to rain; nobody had ever seen rain before and did not know what he was talking about. For 100 years, Noah was building his ark and telling people that the rain was coming soon. They laughed at him and probably he was the first person called The Rainman. They were not laughing so much when the rain actually did come. I was sitting in my easy chair, looking out the glass door, watching it rain and rain and rain. Just when I thought it was about over, there was a crackling thunder and the rain came down worse than before. “When will this rain,” I said in a very disgusted attitude, “stop so I can go outside?” My wife looked at me and said, “What do you want to go outside for?” Well, she had me there. Because there is nothing for me to do outside and furthermore, I am not permitted to do any repair work on the outside by decree of the Gracious Mistress of the Parsonage. No matter how bad something is broken, five minutes with me and it will be worse than before. That is, according to her estimation. I tried to keep quiet for a few more minutes, but lo and behold, out came more grouchiness. I guess a person my age has a lot of grouchy to come out, but there is never an appropriate time. “I’m getting so tired,” I said, “of this rain coming and not stopping. When will the rain ever stop? I can do without all this rain.” At that moment, my wife came into the room where I was sitting and stared at me for a few moments. She has those stares that penetrate directly to the soul and back out again. I was afraid to say anything at that time. Then, putting both hands on her hips, she said, “What would we do without rain?” I did not know if that was a rhetorical question or if she was grilling me about our situation. She then turned around and went back to the kitchen to her work. It did, however, caused me to think a little bit about that. Where in the world would we be if it did not rain when it was supposed to rain? If it were not for rain, we would not have the beautiful land we now have. The farmer’s fields would not grow. The gardener’s vegetables would not grow. The florist’s would lose all their flowers. Thinking along these lines, I came to a conclusion. It is important in this world for it to rain. Rain has a way of making everything grow and be healthy. David saw rain in a very different matter. “Sing unto the Lord with thanksgiving; sing praise upon the harp unto our God: Who covereth the heaven with clouds, who prepareth rain for the earth, who maketh grass to grow upon the mountains” (Psalm 147:7-8). A rainy day is somewhat like life. You cannot make it rain and you cannot make it stop. However, every rain has a positive effect on the world around us. I cannot control the rain, neither can I control much of the elements in my life but I can have a thankful heart like David, knowing that after the rain the flowers will bloom. 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. Mountain Views News 80 W Sierra Madre Blvd. No. 327 Sierra Madre, Ca. 91024 Office: 626.355.2737 Fax: 626.609.3285 Email: editor@mtnviewsnews.com Website: www.mtnviewsnews.com | ||||||||||||||||||||