Tutoriel: Créer son Propre Téléphone Mobile, un Jeu d’Enfant Si vous trouvez que les smartphones du marché ne correspondent pas à vos attentes, pourquoi ne pas fabriquer votre propre téléphone mobile. C’est ce que vous propose David Mellis. Ce docteur en sciences et technologies au MIT, vient de mettre en ligne un nouveau tutoriel pour réaliser un mobile sous plateforme Arduino GSM. Pour concevoir ce téléphone il vous faudra une soixantaine de composants, de la passion et un gout prononcé pour le design, si vous souhaitez faire un appareil d’exception. Dans le cas contraire, vous pourrez vous contenter de produire un modèle basique qui permet non seulement de téléphoner, mais également envoyer ou recevoir des SMS, afficher l’heure avec fonction alarme, etc… Qui sait vous serez peut-être le prochain Steve Jobs ? source Références similaires téléphone portable OR téléphone mobile OR smartphone About author: All entries by Stony Leave a Reply 1 Trackback Objects | Pearltrees[...]
Thermoelectric Fan Powered by a Candle A Thermoelectric generator powered by a tealight. It started as an experiment of how much power I could get from one candle. But I liked the idea and it worked really well so I built this electric-mechanical ornament. I did not use a high temperature TEG-module, but instead a cheap TEC-module. That can still handle 200 degrees Celsius which is good enough. Please see my other project with a more powerful TEG: Or how to create a self regulated thermoelectric CPU-cooler: Concept: It is also called a peltier element and when you use it as a generator it's called seebeck effect. If you unmounts the basement you could also use it as a stove-fan or move air from other heat sources. Total cost was about 50€ (incl. shipping costs). TEC specification (at ΔT=68C): Vmax: 8.5 Imax: 10 Qmax: 52.7 Tmax: 200 degrees Celsius Source: Mod Proposals:
HEATSTICK The HEATSTICK™ Thermal Fan -- $99.95buy one now! The HEATSTICK™ Thermal Fan draws the Warm Air off your ceiling and slips it onto your Cold Floors and Feet. Almost for FREE! The Zalman ZM-F1 PLUS 80mm Quiet Fan uses very little electricity -- it only draws .63 watts. be operated 24/7 for a MONTH for less than a nickel, (.63 watts x 24 hrs x 30 days / 1,000 = .4536 kWh) or operate it 24/7 for 6 months (all winter, and then some) for about a quarter. (Based on $.10/kWh.) The warmest hottest air is always above your head. The coldest air is always hovering around your cold feet. The HEATSTICK™ Thermal Fan sips the very warmest air off the ceiling and injects it under the coldest air in the room. It creates, establishes, and maintains a true floor to ceiling thermal convection current that will reduce your heating costs and make you warmer. UPDATE -- 25 Jan 2020 -- The Re-Re-Re-Design of the HEATSTICK™ Thermal Fan is now available. It is not magic; It is Applied Science! Warm Air Rises! Warm Air Escapes!
Candles What Kind of Candles Work "Best"? There are lots of different kinds of candles in the world and as long as they are in an appropriate container (steel, glass, ceramic) and "fit" under the radiator assembly (without being too close) they will probably "work" -- the thermal energy of the candle flame will be converted into dry radiant space heat by the radiator assembly. But some candles do this better than others. And Liquid Candles are "better" than Solid Candles, but let's discuss Solid Candles first. General guidelines, the "harder" the wax the higher the grade and the "hotter" it will burn (and produce less soot). Coloring agents are "contaminates" (for this discussion), they do not "add energy" to a candle and may not burn well. The "Best" candle then, would be a harder wax, white (or very light), with a medium wick, unscented, or maybe scented with orange/lemon oil in an appropriate container. The 3 inch "Dollar Store" jar candles work very well for the money. A Note on "Size".
KanHeetMoreInfo Kandle Heetertm Candle Holder -- News and Information -- Welcome, we have a lot of information to share on effective use of the Kandle Heetertm Candle Holder. There are three specific topics -- liquid paraffin candle cartridges, "refillable" liquid candles, and our new 60 watt Halogen "electric" candle. Special "Thank You's" to all our many customers this past winter, especially for your encouraging words and suggestions, and for passing on your "discoveries" of getting a little bit "more" out of this simple low tech device. I personally used the 50 hour Liquid Paraffin Candle Cartridges almost exclusively all winter (after I was informed of them by RR in San Francisco). Do Not "raise" the height of the cartridge by inverting the smaller saucer under the larger saucer (as when burning "Dollar Store" candles). Do Not "pull" the wick up! There is, of course, one serious disadvantage to these cartridges -- they are not refillable, but designed to be tossed. NEW for 2007! ADDITIONAL NOTES.
Radiant Warmth for Pennies per Day | The Warmth Within December 22, 2010 by Lanium After the successful operation of my Candle-lamp design, I decided to research oil burning lamps. The benefits of using oil as fuel for a ceramic heater inspired me to create my newest design, this Radiant Heat Oil Lamp. The metal and ceramic radiator assembly is almost identical to the one used in th Candle-lamp, however the higher calorific value of the paraffin lamp oil means that this device puts out more heat. The oil burns more steadily than a wax candle fuel source, and the flame remains at a constant distance from the radiator assembly. It is important to keep the wick trimmed very close to the top of the glass wick holder in order to keep the flame at an optimum size. I am amazed at how long the burning oil lasts when compared to the wax candles. And lamp oil is cheap! The fiberglass wick I use also does not burn down as long as there is a fuel source wicking up from below, and there is no mess from dripping wax or charred wick. Update 2: Like this:
Hot pots. Updated post 09 April 2016... Hot pots 2, the final solution... follow link for latest discoveries including the Pyrex dome heater and cooker. This blog post charts the history of my experiments with flower pot heater designs over a six month period from the time in September that I first saw the Tea light candle heater in the video that was later posted by Sheerien Carter. It mentions the pitfalls associated with the use of Tea lights as fuel (the wax can ignite in a very smoky way if the pots get too hot and there is always a candle smell) The solution to that is to use Rapeseed oil as your fuel, it also burns for far longer and allows your pots to get much hotter than is safe with Tea lights, the oil never goes on fire. Use plain household COTTON string for your wicks and clothes peg springs as wick holders (see photos) The oil powered heaters require far less attention and are easy to top up, no smell either. It really does take nearly all the work out of it. November 2013. Try this -
If You Could Power Your Entire Home With 60 Minutes Of Cycling, Would You Do It? The Facts:Dr. Christopher Exley, a Professor in Bioinorganic Chemistry at Keele University explains why he believes aluminum is playing some sort of role in Autism. And no, he doesn't mean that aluminum is directly causing autism.Reflect On:How safe are our common medications? How much safety testing have they gone through? How much is still unknown? A study published in 2018 discovered high amounts of aluminum in the brain tissue of people with autism. The authors state that, Human exposure to aluminium has been implicated in ASD with conclusions being equivocal [7], [8], [9], [10]. They note that the aluminum content of brain tissues from donors with a diagnosis of ASD was “extremely high” (Table 1). In this interview, Exley answers a lot of questions, but the part that caught my attention, similar to what was said above, was: How Does Aluminum In Vaccines Differ From Other Sources of Aluminum? When you inject aluminum, it goes into a different compartment of your body. Dr. The Takeaway