electricity https://b2012overleven.runboard.com/t255 Runboard| electricity en-us Thu, 28 Mar 2024 11:27:11 +0000 Thu, 28 Mar 2024 11:27:11 +0000 https://www.runboard.com/ rssfeeds_managingeditor@runboard.com (Runboard.com RSS feeds managing editor) rssfeeds_webmaster@runboard.com (Runboard.com RSS feeds webmaster) akBBS 60 electric lighthttps://b2012overleven.runboard.com/p1538,from=rss#post1538https://b2012overleven.runboard.com/p1538,from=rss#post1538I just saw mention of the celebration of a light bulb that's been on for 100 years straight in some fire station in the USA. I learned at school from a teacher once that the way to have a light bulb never break is to offer it less energy than it was built to handle. So offer a 100W bulb only 75W, or so, and it'll never break. I always remembered this and was considering it for post-2012, but now i saw the proof of his statement in this article on a 100-year-bulb, i'm going to really take it seriously. The bulb in question seems to have an unusually long length of glowing wire, which might account for it's longevity because it can then handel current better, distributing it more evenly over the glowing material. These kind of large bulbs are also often built for higher currents so if this fire station bulb has been hanging there receiving 110V when it can handel much more, that might account for it's incredible age. Wikipedia says: "The bulb's long life has been attributed to its low power, near continuous operation, and dedicated power supply." How to arrange that a light bulb receives less power than it's built for, for that you'd have to ask a technician. I don't know about such things, unfortunately. I do imagine, however, that a 12V system, which is the most likely in a survival setting, would inherently ask less of a light bulb than it's built for. Then it's just a matter of getting a strong enough one so it'll still offer meaningful light even though it's getting much less than it can handel. $ 125 nondisclosed_email@example.com (TheLivingShadow)Tue, 14 Feb 2012 19:23:24 +0000 Re: electricityhttps://b2012overleven.runboard.com/p900,from=rss#post900https://b2012overleven.runboard.com/p900,from=rss#post900TO MAKE ELECTRICITY GENERATOR IS NOT A EASY THING, BUT CORDLESS DRILLS ARE MACHINES THAT CONVERT DC STORED IN BATTERIES TO ROTACIONAL MOVEMENT, AND ALSO COULD BE USED IN A INVERSE WAY, GIVE TO THE DRILL ROTACIONAL MOVEMENT WHIT THE HANDS OR MAY BE EVEN WITH A SMALL WATER FLOW OR WIND, AND THEN USE IT AS A SMALL DC ELECTRICITY GENERATOR AND BATTERY CHARGER. THE WONDER OF THIS MACHINES IS THAT ARE ALREADY BUILD AND EASY TO USE. see PDF files: - bicycle generator using cordless drills - Converting a Portable Cordless Drill to a Hand Crank DC Generator offered by David [via my gmail]nondisclosed_email@example.com (TheLivingShadow)Sat, 17 Sep 2011 16:46:43 +0000 electricityhttps://b2012overleven.runboard.com/p541,from=rss#post541https://b2012overleven.runboard.com/p541,from=rss#post541technology ideas anythingnondisclosed_email@example.com (TheLivingShadow)Wed, 22 Jun 2011 10:14:16 +0000