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Everything posted by Externet
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Hi. Is there any science behind ? Or is it sort of a cult ? Or only another sort of horoscope publication just to profit from something ? Does such exist in Europe ? Does it have true followers ? Supposed to predict weather well in advance, days apt for sowing/harvesting this, that, the other; fishing... On what basis ? Wikipedia does not offer much about its 'science'.
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To isolate as much as possible the rear facing sound waves from interfering when bouncing, with the front waves causing both constructive and destructive fringes producing unwanted acoustical effects depending on the listener location. Which I do not care for the intended tests.
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Hi. With English as third language, am following the vowel rule Sorry if wrong.
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Whoever painted an unicorn never saw in his life an unicorn. It is a product of imagination. As any other god, or a painting of any god.
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John: The speaker in the oil filled bag is meant to be like this: ----> http://www.louisvillemusic.org/techcolumn/files/2012/03/speaker2.jpg Not this: ----> http://www.graphicsfuel.com/wp-content/uploads/2010/11/wooden-speaker2.png
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How do you reduce voltage and make a current last longer?
Externet replied to MWresearch's topic in Engineering
The stator, generator or energy source does not overcharge a battery if it is regulated. Like the battery in your car receiving charge from an alternator governed by its voltage regulator. When batteries are fully charged, there is no need to "let excess energy out" Again, like in your car, there is no need to turn lights on in order to prevent overcharging. It was taken care of during the charging process to not exceed rating/voltage 'by not sending more charge in' To "stay full after energy is taken from them" is the job of the charging regulator, which recognizes a state of acceptance for more charge and 'tops it up'. A voltage regulator senses a lead-acid battery voltage. If it is say 14.00V, stops 'sending' current. If it is 13.47V "after energy is taken from them", sends more charge. -
How do you reduce voltage and make a current last longer?
Externet replied to MWresearch's topic in Engineering
The light bulb should be replaced with one of smaller wattage (or power ) (or greater resistance) to obtain 3 seconds of 10 Amperes current instead of 1 second of 30 amperes current for the original higher power and lower resistance one. The light intensity will diminish accordingly, duration will be longer Your example of 30 Amperes and 1 second is equivalent to 30x1= 30 Coulombs of useable energy in the capacitor. A common and abundant voltage converter of the DC-to-DC type can also lower the voltage and extend time. A lower voltage than a lamp is rated for will emit less luminosity. Capacitor discharging exhibits a behavior like releasing air from a balloon; at the beginning can supply pressure and volume, rapidly decreasing after a short time. It has been set a standard of 63% of a capacitor voltage discharge as useable. More precise figures and details about your project can provide better suggestions and guidance. -
Hi. In your opinion, would a plain speaker propagate sound reasonably fidel underwater if lowered to 30m depth inside a hermetic plastic bag filled with light vegetable oil and if needed, a little air left in by the moving coil ?
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Am sorry if touched a nerve, but there is no racism implied. It is a view of what would take to make a tunnel with the US regulations. And nothing else.
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El Chapo civil engineering escape tunnel construction executed by gringos... The dissappearing act would had first been consulted to a magician consulting corporation, for several million $. The planning would had been three years since the first incarceration day. Tunnel construction permits to comply with city and county codes. The purchase of the property were to start digging would had been conducted by a registered realtor and obtained a normal 30 year mortgage to not be suspicious. A detour from the original planned path negotiated with GreenPeace to protect an endangered worm found there. The digging crews would had received legal overtime, morning and afternoon breaks, medical, dental and life insurances, with 'hazmat' suits and decontamination chambers. Paramedics always standing-by, Anti-claustrophobic psychoanalists advisors on duty. Accomodation included at a nearby three star hotel with daily transportation to the workplace. Leased automated digging equipment would had to be all pushbutton operated remotely, from a dust-free airconditioned office with multiple monitoring cameras and drones. EPA would had to be bribed to allow a motorcycle engine in the confinements of a mile long tunnel, and to properly dispose of the digged soil. Laptop computers would had been networked every 100 feet in the tunnel, for the diggers to check facebook during breaks. Tweets forbidden. A soda and chips vending machine likely installed midway. For final transportation, a rental black tinted glass armored Hummer with chauffer waiting outside. Camouflaged ATV's for the security personnel. Am sure your imagination can add more, much more... go ahead! http://www.cnn.com/videos/world/2015/07/15/new-video-el-chapo-escape-tunnel-valencia-dnt-erin.cnn Feels like I will get spanked for this... Please delete if improper.
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Just plain meridian zero. Seems answered as arbitrary to someone's eye or consensus.
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Watching some images of Pluto and Charon (http://www.space.com/11431-photos-pluto-charon-moons-dwarf-planet.html), see that longitude lines have already been decided. Should be recent, as close photos are. What features are taken in account and who decides were to set longitude zero position ? I assume other planets have been already determined. I wished they had decided for a different method/scale instead of the same archaic/arbitrary 360 degrees on earth...
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Heard about a dozen trees falling, breaking and collapsing in the forest around my house, with a wind, rain and thunderstorm background in the last fifteen minutes. So the trees falling in a forest do make noise even if you do not see them.
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United States greed is the small and large companies and corporations sending production labor and sourcing materials to China to increase profits to extreme, leaving the US citizens with no employment. Seems filling foreign pockets is more 'capitalistically patriotic'.
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Printing their own drachme does not invalidate the euro currency already in hands of greek population, their foreign accounts and matresses. Greeks will keep using their euros; new drachmes will fall into deep devaluation to the point of being useless and ignored, except perhaps for minor daily commerce, taxes or giving change to tourists. There is no way a 'printing machine entity' will convince the Greek population to surrender their held euros in exchange of new drachmes. The debt can remain unpaid, their exports/tourism can still collect in euros, imports will diminish. Industry will self focus into more exports production of vessels, wine or whatever they do better. I resided many years in a country were the inflation was fought by also using a parallel US dollar currency for important transactions and matress/foreign savings. The poor went poorer, the wealthy became more. A close friend there advised me to buy US dollars constantly; which I did as much as my paychecks allowed for a decade+. I kept afloat if not actually ahead of average allowing a better future. Inflation in double digits (well over 20%) is a brutal strike against personal progress, and a life of frustration. I think Greeks experienced that before the euro and stays in their retina. Drachmes will not work.
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Archimedes could have said "Give me a place to anchor a magnet in space and I will move the iron asteroid, or push a spacecraft"
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I take you mean the United States of America biggest problem. ----> Greed, greed, and greed. And I believe more than 5% of wealth in the world is in hands of petroleum exporters.
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How wrong do you see my inexpert politics view of Greece ? : Young Greeks have and will have difficult times, older Greeks have their mattresses stuffed with money from long lasting easy bonanza, reflecting a near 50/50 division in voting. Both lenders and recipients of financial aids will get wealthier no matter what be the end result of Greece paying or not a debt. Too easy living for too long causes unreal expectations for the future to be even easier.
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Worlds Energy requirements ' May be ' within our technological Grasp !Much if not all of the energy the world needs is already within technological grasp. Just money is needed to build/implement engineering for its extraction. It is called lunar power + solar power by exploiting tides. Turbines in the strait of Gibraltar should be capable of powering Europe. Denmark, Canada and Asia have also, straits with gigantic potential. Without need to bring wires or lossy wireless from space.
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To heat water from solar, placing the collectors near the need is way better than up on a tower that will need reinforcement to support extra weight, plus will decrease the losses in piping lenghts to surrounding villages. Every village or dwelling should implement their own system. ----> http://www.expertsolar.com/images/solar-pool-heating-coils-tucson-east.jpg ----> http://www.solarheatmypool.com/solar_pool_heating_images/solar_heating_coils_ground_mount.jpg And cost is much less than solar-electric panels, using black plastic tubing. To increase efficiency, a clear greenhouse-duty plastic film can be placed on top of the coils. Prevents the wind from cooling the coils. ----> http://www.scienceforums.net/topic/87892-tough-clear-plastic-film-recommendations-please/?hl=%2Bclear+%2Bfilm+%2Bplastic
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In vacuum : ---->
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Hello. Using a single internal combustion engine instead; what is a reasonable guess in needed power for this animal ? ----> http://www.gizmag.com/flike-personal-flight-manned-flying-bike/37779/ (Video at end of page)
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A contributor to obesity is the laziness of people, and the addiction for comfort and pleasure. Laziness... Everyone buys a car only if has electric windows and airconditioner. Pushing a button instead of cranking the window. Not even that little exercise ! And sweating is no-no. Comfort... Check how many people runs in circles in a parking lot looking and waiting for the parking spot nearest to the entrance... of a gymnasium ! Or parking and walking to a MacDonald. Instead, use the drive-in lane. Pleasure... People will not eat foods unless they taste superb, no matter how lean or nutritive a not-so-great flavor be. Eating for pleasure yes; for nourishment no. So, let them be obese.
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Hi. Reading about non-Joulian magnetostriction, would like to learn if quenched Fe73.9–Ga26.1 makes sense in the alloys world. What would be the 'normal' way to express the given proportions ? By weight, or volume or other ?
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Hi. Thought of using the politics forum, but perhaps is safer here... All the fight of rebel/mercenaries/fighting groups filling the news, is it in pursuit/dream of some type of living ? Like waking up at seven, in an airconditioned house, birds singing by the backyard fruit trees; taking a shower with abundant clean water, having a good coffee, prepare a good breakfast for the kids, watching them walking away to the school bus, compliment the wife under the new burkha, helping her to make a supermarket shopping list, lend her your new car and she drives away for shopping... Get out to mow the very green lawn and tend the garden, pause for the morning prayers, then read the newspaper finding that the last adversary tribe finally fleed or died and will never have to deal with them again... Get to the garage to play with some carpentry pending tasks, as finally that special tool arrived at the mail box together with the last mortgage statement; perhaps a moment or two thinking to advance something on his favorite hobby, then try to fix the clothes washer machine leak... Preparing a meal, taking a siesta... the afternoon prayers... Receiving a visit from old friends and enjoy the evening at a restaurant, later read a book and fall asleep on that comfortable bed by eleven... Is this it ? Would they be happy this way ? What do these people want for their lives ? Can you speculate or if you exactly know it, tell it ?