Members TampaYankee Posted February 26, 2014 Members Posted February 26, 2014 Teen Invents Flashlight That Could Change The World By Andrew Lampard Ann Makosinski was just another teenager with another science project when she joined her local science fair in Victoria, Canada, last year. Her invention, a flashlight that is powered solely from hand heat, took second place at the competition. Ann, 16, and her parents, both of whom are HAM radio operators and like to fiddle with electronics, were satisfied with that result. “It’s a very simple project,” said Arthur Makosinski, Ann’s father. “It has four electrical components. Let’s move on and do something different.” But had Ann left her project in Victoria, situated just 25 miles north of Washington State, the world may have missed out on a light source that doesn’t use batteries, solar power or wind energy. Think about that for a moment: a flashlight that shines for as long as you hold onto it. No more scrambling for and chucking away AA batteries. It could have an immediate impact on more than 1.2 billion people -- one-fifth of the world’s population -- who, according to the World Bank, lack regular access to electricity. Stunningly, no one on record has thought to use thermoelectric technology to power a flashlight. But for Ann, peltier tiles, which produce an electrical current when opposite sides are heated and cooled at the same time, were a convenient solution to a friend’s study problem. Two years ago, Ann, who is half-Filipino, was corresponding with a friend of hers in the Philippines who didn’t have electricity. According to Ann, her friend couldn’t complete her homework and was failing in school. “That was the inspiration for my project.” said Ann, “I just wanted to help my friend in the Philippines and my flashlight was a possible solution.” Ann got to work. She remembered hearing human beings described as walking 100-volt light bulbs: “I thought, why not body heat? We have so much heat radiating out of us and it’s being wasted.” After a few prototypes, she unveiled her “hollow flashlight,” so named because it has a hollow aluminum tube at its core that cools the sides of the peltier tiles attached to the flashlight’s cylinder. The other side is warmed by heat from a hand gripping the flashlight. Ann spent several months designing the flashlight and figuring out its voltage conversion. Much has been written online about powering a flashlight with peltier tiles, but those devices used heat from candles and blow torches. Ann’s patent-pending prototype relies on hand warmth only and required that she make her own transformer, among other difference-making factors. Art Makosinski remembers his surprise when Ann figured out how to light the flashlight’s bulbs at 20 millivolts: “I didn’t believe it, I had to inspect the circuit. I said what did you do here, do you have a hidden battery on the other side?” At the behest of Kate Paine, her ninth grade marine biology teacher at St. Michaels University School, Ann submitted her flashlight into the 2013 Google Science Fair last spring. She promptly forget all about it. Thousands of kids apply from around the world. She said she didn’t think she had a chance. A few months later, in September 2013, Ann was named a finalist in her age group. She travelled to Google’s headquarters in Mountain View, Calif., to present alongside equally impressive projects, like a cure for the common cold and a robotic exoskeleton. “I didn’t expect to win anything,” she said. At the science fair’s gala night, Ann and Art mingled among top Google engineers, eminent scientists and some of the most innovative kids on the planet. Hers was the last name they expected to be called out the winner for her age group. When it was, Art almost dropped his camera. Ann floated to the stage as if welded to a conveyer belt; her face was frozen in shock. Her prize was a trophy made out of Legos, a visit to the Lego Group headquarters in Denmark, and a $25,000 scholarship. “I still have some of the same confetti that rained down,” said Ann. “Just an amazing experience and probably something I won’t experience ever again.” When Ann returned to Victoria, she received a standing ovation at her high school’s Monday morning assembly. In the months since, she has given three TEDx talks and appeared on the “Tonight Show Starring Jimmy Fallon.” "I think it’s a lesson that children can innovate," said Art Makosinski. "With the right incentive and environment, they can be quite innovative." Many people have asked where she wants to attend university, expecting to her to name the likes of Stanford or MIT. Ann said she’s not thinking that far ahead; she needs to get through the eleventh grade first. And then there’s the business of securing her flashlight’s patent and tweaking the prototype for market. At roughly 24 lumens, Ann’s flashlight’s brightness falls shy of commercial flashlights, which output dozens if not hundreds of lumens. Of her efforts to increase her flashlight’s voltage efficiency, she said, “I want to make sure my flashlight is available to those who really need it.” Read original article with video here: http://news.yahoo.com/blogs/this-could-be-big-abc-news/teen-invents-flashlight-could-change-world-182121097.html?vp=1 MsGuy and lookin 2 Quote
Members MsGuy Posted February 26, 2014 Members Posted February 26, 2014 What a wonderful invention. I could use one of those myself. When the lights go off, my flashlight battery is inevitably dead and I'm not much good stumbling around in the dark trying to remember where I put the spares. Quote
AdamSmith Posted February 26, 2014 Posted February 26, 2014 When the lights go off, my flashlight battery is inevitably dead and I'm not much good stumbling around in the dark trying to remember where I put the spares. Same here. So, awaiting the miracle battery, I meanwhile shelled out for a couple of hand-crank-rechargeable-type emergency lanterns which have saved my neck, or at least ankle, once or twice when the lights went out. Similar model to this brother which is $29.95: http://www.walmart.com/ip/Coleman-LED-Crank-Lantern-with-Radio-Blue/19235939 Quote
Members MsGuy Posted February 26, 2014 Members Posted February 26, 2014 LOL, like I'm ever going to think of buying a hand-crank while the lights are still on. Hell, I'm doing good to remember the ketchup. lookin and AdamSmith 2 Quote
Members RA1 Posted February 27, 2014 Members Posted February 27, 2014 I wonder what took first place? I have plug into a 110V socket flashlights with rechargeable batteries. When the power goes off, these lights go on. Therefore you can find them and light up a room enough to avoid falling over everything. I have two and they were gifts so I don't know much about them and, fortunately, the power does not go off very often. When it does, I am always surprised by the lights. Best regards, RA1 Quote
AdamSmith Posted February 27, 2014 Posted February 27, 2014 After a hurricane caused a shortage of free-flowing electrons hereabouts, my cousin went to Sears and got a kerosene-powered household generator. But the wife won't let him use it, for fear of blowing up the house and himself. In that order of concern, I think. For no real reason, that brought this to mind... The Night the Bed Fell by James Thurber I suppose that the high-water mark of my youth in Columbus, Ohio, was the night the bed fell on my father. It makes a better recitation (unless, as some friends of mine have said, one has heard it five or six times) than it does a piece of writing, for it is almost necessary to throw furniture around, shake doors, and bark like a dog, to lend the proper atmosphere and verisimilitude to what is admittedly a somewhat incredible tale. Still, it did take place. It happened, then, that my father had decided to sleep in the attic one night, to be away where he could think. My mother opposed the notion strongly because, she said, the old wooden bed up there was unsafe- it was wobbly and the heavy headboard would crash down on father's head in case the bed fell, and kill him. There was no dissuading him, however, and at a quarter past ten he closed the attic door behind him and went up the narrow twisting stairs. We later heard ominous creakings as he crawled into bed. Grandfather, who usually slept in the attic bed when he was with us, had disappeared some days before. (On these occasions he was usually gone six or seven days and returned growling and out of temper, with the news that the federal Union was run by a passel of blockheads and that the Army of the Potomac didn't have any more chance than a fiddler's bitch.) We had visiting us at this time a nervous first cousin of mine named Briggs Beall, who believed that he was likely to cease breathing when he was asleep. It was his feeling that if he were not awakened every hour during the night, he might die of suffocation. He had been accustomed to setting an alarm clock to ring at intervals until morning, but I persuaded him to abandon this. He slept in my room and I told him that I was such a light sleeper that if anybody quit breathing in the same room with me, I would wake Instantly. He tested me the first night-which I had suspected he would by holding his breath after my regular breathing had convinced him I was asleep. I was not asleep, however, and called to him. This seemed to allay his fears a little, but he took the precaution of putting a class of spirits of camphor on a little table at the head of his bed. In case I didn't arouse him until he was almost gone, he said, he would sniff the camphor, a powerful reviver. Briggs was not the only member of his family who had his crotchets. Old Aunt Alelissa Beall (who could whistle like a man, with two fingers in her mouth) suffered under the premonition that she was destined to die on South High Street, because she had been born on South High Street and married on South High Street. Then there was Aunt Sarah Shoaf, who never went to bed at night without the fear that a burglar was going to get in and blow chloroform under her door through a tube. To avert this calamity -for she was in greater dread of anesthetics than of losing her household goods-she always piled her money, silverware, and other valuables in a neat stack just outside her bedroom, with a note reading,: "This is all I have. Please take it and do not use your chloroform, as this is all I have." Aunt Gracie Shoaf also had a burglar phobia, but she met it with more fortitude. She was confident that burglars had been getting into her house every night for four years. The fact that she never missed anything was to her no proof to the contrary. She always claimed that she scared them off before they could take anything, by throwing shoes down the hallway. When she went to bed she piled, where she could get at them handily, all the shoes there were about her house. Five minutes after she had turned off the light, she would sit up in bed and say "Hark!" Her husband, who had learned to ignore the whole situation as long ago as 1903, would either be sound asleep or pretend to be sound asleep. In either case he would not respond to her tugging and pulling, so that presently she would arise, tiptoe to the door, open it slightly and heave a shoe down the hall in one direction, and its mate down the hall in the other direction. Some nights she threw them all, some nights only a couple of pair. But I am straying from the remarkable incidents that took place during the night that the bed fell on father. By midnight we were all in bed. The layout of the rooms and the disposition of their occupants is important to an understanding of what later occurred. In the front room upstairs (just under father's attic bedroom) were my mother and my brother Terry, who sometimes sang in his sleep, usually "Marching Through Georgia" or "Onward, Christian Soldiers." Briggs Beall and myself were in a room adjoining this one. My brother Roy was in a room across the hall from ours. Our bull terrier, Rex, slept in the hall. My bed was an army cot, one of those affairs which are made wide enough to sleep on comfortably only by putting up, flat with the middle section, the two sides which ordinarily hang down like the sideboards of a drop-leaf table. When these sides are up, it is perilous to roll too far toward the edge, for then the cot is likely to tip completely over, bringing the whole bed down on top of one, with a tremendous banging crash. This, in fact, is precisely what happened, about two o'clock in the morning. (It was my mother who, in recalling the scene later, first referred to it as "the night the bed fell on your father.") Always a deep sleeper, slow to arouse (I had lied to Briggs), I was at first unconscious of what had happened when the iron cot rolled me onto the floor and toppled over on me. It left me still warmly bundled up and unhurt, for the bed rested above me like a canopy. Hence I did not wake up, only reached-the edge of consciousness and went back. The racket, however, instantly awakened my mother, in the next room, who came to the immediate conclusion that her worst dread was realized: the big wooden bed upstairs had fallen on father. She therefore screamed, "Let's go to your poor father!" It was this shout, rather, than the noise of my cot falling, that awakened Herman, in the same room with her. He thought that mother had become, for no apparent reason, hysterical. "You're all right, Mamma!" He shouted, trying, to calm her. They exchanged shout for shout for perhaps ten seconds: "Let's go to your poor father!" and "You're all right! " That woke up Briggs. By this time I was conscious of what was going on, in a vague way, but did not yet realize that I was under my bed instead of on it. Briggs, awakening in the midst of loud shouts of fear and apprehension, came to the quick conclusion that he was suffocating and that we were all trying to "bring him out." With a low moan, he grasped the glass of camphor at the head of his bed and instead of sniffing it poured it over himself. The room reeked of camphor. "Ugh, ugh," choked Briggs, like a drowning man, for he had almost succeeded in stopping his breathing under the deluge of pungent spirits. He leaped out of bed and groped toward the open window, but he came up against one that was closed. With his hand, he beat out the glass, and I could hear it crash and tinkle on the alleyway below. It was at this juncture that I, in trying to get up, had the uncanny sensation of feeling my bed above me. Foggy with sleep, I now suspected, in my turn, that the whole uproar was being made in a frantic endeavor to extricate me from what must be an unheard-of and perilous situation. "Get me out of this!" I bawled. "Get me out!" I think I had the nightmarish belief that I was entombed in a mine. "Ugh," gasped Briggs, floundering in his camphor. By this time my mother, still shouting, pursued by Herman, still shouting, was trying to open the door to the attic, in order to' go up and get my father's body out of the wreckage. The door was stuck, however, and wouldn't yield. Her frantic pulls on it only added to the general banging and confusion. Roy and the dog were now up, the one shouting questions, the other barking. Father, farthest away and soundest sleeper of all, had by this time been awakened by the battering on the attic door. He decided that the house was on fire. "I'm coming, I'm coming,!" be wailed in a slow, sleepy voice-it took him many minutes to regain full consciousness. My mother, still believing he was caught under the bed, detected in his "I'm coming!" the mournful, resigned note of one who is preparing to meet his Maker. "He's dying!" she shouted. "I'm all right!" Briggs yelled to reassure her. "I'm all right!" He still believed that it was his own closeness to death that was worrying mother. I found at last the light switch in my room, unlocked the door, and Briggs and I joined the others at the attic door. The dog, who never did like Briggs, jumped for him assuming that he was the culprit in whatever was going on and Roy had to throw Rex and hold him. We could hear father crawling out of bed upstairs. Roy pulled the attic door open, with a mighty jerk, and father came down the stairs, sleepy and irritable but safe and sound. My mother began to weep when she saw him. Rex began to-howl. "What in the name of God "s going on here?" asked father. The situation was finally put together like a gigantic jig-saw puzzle. Father caught a cold from prowling around in his bare feet but there were no other bad results. "I'm glad," said mother, who always looked on the bright side of things, "that your grandfather wasn't here." http://english.glendale.cc.ca.us/bedfell.html lookin 1 Quote
Members BigK Posted February 28, 2014 Members Posted February 28, 2014 After a hurricane caused a shortage of free-flowing electrons hereabouts, my cousin went to Sears and got a kerosene-powered household generator. But the wife won't let him use it, for fear of blowing up the house and himself. In that order of concern, I think. For no real reason, that brought this to mind... The Night the Bed Fell by James Thurber I suppose that the high-water mark of my youth in Columbus, Ohio, was the night the bed fell on my father. It makes a better recitation (unless, as some friends of mine have said, one has heard it five or six times) than it does a piece of writing, for it is almost necessary to throw furniture around, shake doors, and bark like a dog, to lend the proper atmosphere and verisimilitude to what is admittedly a somewhat incredible tale. Still, it did take place. It happened, then, that my father had decided to sleep in the attic one night, to be away where he could think. My mother opposed the notion strongly because, she said, the old wooden bed up there was unsafe- it was wobbly and the heavy headboard would crash down on father's head in case the bed fell, and kill him. There was no dissuading him, however, and at a quarter past ten he closed the attic door behind him and went up the narrow twisting stairs. We later heard ominous creakings as he crawled into bed. Grandfather, who usually slept in the attic bed when he was with us, had disappeared some days before. (On these occasions he was usually gone six or seven days and returned growling and out of temper, with the news that the federal Union was run by a passel of blockheads and that the Army of the Potomac didn't have any more chance than a fiddler's bitch.) We had visiting us at this time a nervous first cousin of mine named Briggs Beall, who believed that he was likely to cease breathing when he was asleep. It was his feeling that if he were not awakened every hour during the night, he might die of suffocation. He had been accustomed to setting an alarm clock to ring at intervals until morning, but I persuaded him to abandon this. He slept in my room and I told him that I was such a light sleeper that if anybody quit breathing in the same room with me, I would wake Instantly. He tested me the first night-which I had suspected he would by holding his breath after my regular breathing had convinced him I was asleep. I was not asleep, however, and called to him. This seemed to allay his fears a little, but he took the precaution of putting a class of spirits of camphor on a little table at the head of his bed. In case I didn't arouse him until he was almost gone, he said, he would sniff the camphor, a powerful reviver. Briggs was not the only member of his family who had his crotchets. Old Aunt Alelissa Beall (who could whistle like a man, with two fingers in her mouth) suffered under the premonition that she was destined to die on South High Street, because she had been born on South High Street and married on South High Street. Then there was Aunt Sarah Shoaf, who never went to bed at night without the fear that a burglar was going to get in and blow chloroform under her door through a tube. To avert this calamity -for she was in greater dread of anesthetics than of losing her household goods-she always piled her money, silverware, and other valuables in a neat stack just outside her bedroom, with a note reading,: "This is all I have. Please take it and do not use your chloroform, as this is all I have." Aunt Gracie Shoaf also had a burglar phobia, but she met it with more fortitude. She was confident that burglars had been getting into her house every night for four years. The fact that she never missed anything was to her no proof to the contrary. She always claimed that she scared them off before they could take anything, by throwing shoes down the hallway. When she went to bed she piled, where she could get at them handily, all the shoes there were about her house. Five minutes after she had turned off the light, she would sit up in bed and say "Hark!" Her husband, who had learned to ignore the whole situation as long ago as 1903, would either be sound asleep or pretend to be sound asleep. In either case he would not respond to her tugging and pulling, so that presently she would arise, tiptoe to the door, open it slightly and heave a shoe down the hall in one direction, and its mate down the hall in the other direction. Some nights she threw them all, some nights only a couple of pair. But I am straying from the remarkable incidents that took place during the night that the bed fell on father. By midnight we were all in bed. The layout of the rooms and the disposition of their occupants is important to an understanding of what later occurred. In the front room upstairs (just under father's attic bedroom) were my mother and my brother Terry, who sometimes sang in his sleep, usually "Marching Through Georgia" or "Onward, Christian Soldiers." Briggs Beall and myself were in a room adjoining this one. My brother Roy was in a room across the hall from ours. Our bull terrier, Rex, slept in the hall. My bed was an army cot, one of those affairs which are made wide enough to sleep on comfortably only by putting up, flat with the middle section, the two sides which ordinarily hang down like the sideboards of a drop-leaf table. When these sides are up, it is perilous to roll too far toward the edge, for then the cot is likely to tip completely over, bringing the whole bed down on top of one, with a tremendous banging crash. This, in fact, is precisely what happened, about two o'clock in the morning. (It was my mother who, in recalling the scene later, first referred to it as "the night the bed fell on your father.") Always a deep sleeper, slow to arouse (I had lied to Briggs), I was at first unconscious of what had happened when the iron cot rolled me onto the floor and toppled over on me. It left me still warmly bundled up and unhurt, for the bed rested above me like a canopy. Hence I did not wake up, only reached-the edge of consciousness and went back. The racket, however, instantly awakened my mother, in the next room, who came to the immediate conclusion that her worst dread was realized: the big wooden bed upstairs had fallen on father. She therefore screamed, "Let's go to your poor father!" It was this shout, rather, than the noise of my cot falling, that awakened Herman, in the same room with her. He thought that mother had become, for no apparent reason, hysterical. "You're all right, Mamma!" He shouted, trying, to calm her. They exchanged shout for shout for perhaps ten seconds: "Let's go to your poor father!" and "You're all right! " That woke up Briggs. By this time I was conscious of what was going on, in a vague way, but did not yet realize that I was under my bed instead of on it. Briggs, awakening in the midst of loud shouts of fear and apprehension, came to the quick conclusion that he was suffocating and that we were all trying to "bring him out." With a low moan, he grasped the glass of camphor at the head of his bed and instead of sniffing it poured it over himself. The room reeked of camphor. "Ugh, ugh," choked Briggs, like a drowning man, for he had almost succeeded in stopping his breathing under the deluge of pungent spirits. He leaped out of bed and groped toward the open window, but he came up against one that was closed. With his hand, he beat out the glass, and I could hear it crash and tinkle on the alleyway below. It was at this juncture that I, in trying to get up, had the uncanny sensation of feeling my bed above me. Foggy with sleep, I now suspected, in my turn, that the whole uproar was being made in a frantic endeavor to extricate me from what must be an unheard-of and perilous situation. "Get me out of this!" I bawled. "Get me out!" I think I had the nightmarish belief that I was entombed in a mine. "Ugh," gasped Briggs, floundering in his camphor. By this time my mother, still shouting, pursued by Herman, still shouting, was trying to open the door to the attic, in order to' go up and get my father's body out of the wreckage. The door was stuck, however, and wouldn't yield. Her frantic pulls on it only added to the general banging and confusion. Roy and the dog were now up, the one shouting questions, the other barking. Father, farthest away and soundest sleeper of all, had by this time been awakened by the battering on the attic door. He decided that the house was on fire. "I'm coming, I'm coming,!" be wailed in a slow, sleepy voice-it took him many minutes to regain full consciousness. My mother, still believing he was caught under the bed, detected in his "I'm coming!" the mournful, resigned note of one who is preparing to meet his Maker. "He's dying!" she shouted. "I'm all right!" Briggs yelled to reassure her. "I'm all right!" He still believed that it was his own closeness to death that was worrying mother. I found at last the light switch in my room, unlocked the door, and Briggs and I joined the others at the attic door. The dog, who never did like Briggs, jumped for him assuming that he was the culprit in whatever was going on and Roy had to throw Rex and hold him. We could hear father crawling out of bed upstairs. Roy pulled the attic door open, with a mighty jerk, and father came down the stairs, sleepy and irritable but safe and sound. My mother began to weep when she saw him. Rex began to-howl. "What in the name of God "s going on here?" asked father. The situation was finally put together like a gigantic jig-saw puzzle. Father caught a cold from prowling around in his bare feet but there were no other bad results. "I'm glad," said mother, who always looked on the bright side of things, "that your grandfather wasn't here." http://english.glendale.cc.ca.us/bedfell.html Great story. I don't think I'd ever read Thurber. I will have to read him some more. Quote