Incroyables Expériences [65] Dynamo 220V / 230 Volts / Générateur 230 volts manuel (actuelle)
The Pedal-A-Watt Bicycle Generator Stand Buy one or build with detailed plans.
The 400 Watt Pedal-A-Watt allows you to drop your own bicycle into the stand, secure it in under 10 seconds, pedal and create up to 400 watts. The Pedal-A-Watt comes with a Lifetime Warranty and a 30 Day Refund Policy. Should your unit break we'll replace the defective part or the entire stand. If you want a package where you store electricity that you generate and then can plug appliances into an outlet like you have on the wall in your home please look at the Easy Pedal-A-Watt Package. If you want to charge/power mobile devices that plug into a micro USB cable or female cigarette lighter plug simply order above the Pedal-A-watt Stand with the following accessories: 1) 12 foot cable with male cigarette lighter plug 2) 12 vdc regulator and 3) USB Port. This configuration will charge/power mobile devices as you pedal. Explanation of Accessories: The 12 foot cable with male cigarette lighter plug will plug directly into the PowerPak for charging.
Gravity-powered Energy"
The idea of using the force of gravity to generate power has been around for some time. As far back as the 1970s, for instance, scientists were discussing the theoretical possibility of tapping into the gravitational pull of black holes to generate power [source: Time]. The idea was that if matter could be fired at a black hole from a safe distance (so the firing device wouldn't be sucked in), the extreme squeezing of that matter by the hole's gravity would make it hot enough to start a fusion reaction. The Gravia lamp relies on a much simpler concept: Gravity pulls objects downward. The lamp is a standing floor lamp, 58 inches (147 centimeters) tall and cylinder-shaped. A person attaches five 10-pound (4.5-kilogram) brass weights to a ball screw near the top of the lamp.The platform immediately starts dropping along the screw, which is aligned along the length of the lamp. Using gravity to light up LEDs is pretty amazing as it is.
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Dynamo 230 Volts : Il y a longtemps, on a acheté une dynamo manuelle qui avait une sortie 5 volts et 400mA (au maximum). On la trouvait vraiment utile mais peu performante. Par curiosité, il a quand même fallu qu'on l'ouvre pour voir comment elle était faite et surtout, dans le but d'augmenter sa puissance. Une fois ouverte on a vu que dedans il y avait un circuit imprimé. On voulait à l'origine enlever le circuit imprimé qui faisait une grande perte pour récupérer directement les fils de sortie du générateur. Par contre on ne s'y attendait pas mais du générateur il sortait 3 fils et non deux : c'est un générateur triphasé. On ne savait pas comment l'utiliser, donc on l'a laissée ouverte puis abandonnée dans un tiroir. Puis un jour, on a mis un voltmètre en mode volts alternatif à deux des ses trois bornes : il affichait quelque chose, ce qui nous paraissait étrange. Donc on lui a soudé des fils pour approfondir l'expérimentation. Là on a remarqué que quelques soient les deux fils qu'o by exdocdesarbres Apr 4