Search results
Results from the WOW.Com Content Network
A battery charger, recharger, or simply charger, [1] [2] is a device that stores energy in an electric battery by running current through it. The charging protocol—how much voltage and current, for how long and what to do when charging is complete—depends on the size and type of the battery being charged.
A battery eliminator is an adapter intended to allow a device intended for battery operation, such as a radio, to be operated from an AC outlet. [10] All radios, except crystal sets, used inconvenient and messy vacuum tube batteries until the mid- to late-1920s. Battery eliminators that plugged into light sockets became very popular. [11]
Headlamp attached to a helmet. A headlamp, headlight, or head torch is a light source affixed to the head typically for outdoor activities at night or in dark conditions such as caving, orienteering, hiking, skiing, backpacking, camping, mountaineering or mountain biking. Headlamps may also be used in adventure races.
A headlamp is a lamp attached to the front of a vehicle to illuminate the road ahead. Headlamps are also often called headlights, but in the most precise usage, headlamp is the term for the device itself and headlight is the term for the beam of light produced and distributed by the device.
An acetylene gas miner's lamp. A carbide lamp or acetylene gas lamp is a simple lamp that produces and burns acetylene (C 2 H 2), which is created by the reaction of calcium carbide (CaC 2) with water (H 2 O).
In 2011, an individual battery stack was promoted to store 1.5 kWh, a shipping container-sized unit 180 kWh. [4] The battery cannot overheat. [5] The company expected its products to last many charge/discharge cycles, [6] twice as long as a lead-acid battery. Costs were claimed to be about the same as with lead-acid. [7] [8]
The size of the antenna of SPY-1F is reduced from the original 12 ft (4 m) with 4,350 elements to 8 ft (2.4 m) with 1,856 elements, and the range is 54% of the SPY-1D. [5]: 316–317 It is not used by the U.S. Navy, although there were proposals to retrofit Freedom-class littoral combat ships.
Brilliant Light Power, Inc. (BLP), formerly BlackLight Power, Inc. of Cranbury, New Jersey, is a company founded by Randell L. Mills, who claims to have discovered a new energy source from what he says is the electron in a hydrogen atom dropping below its ground energy state into a "hydrino state". [1]