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2. Stihl - Wikipedia

   en.wikipedia.org/wiki/Stihl

   Andreas Stihl designed and hand built his first chainsaw in 1926. [5] The saw was electrically powered, and weighed about 48 kg (106 lb). [6] Stihl grew slowly initially, as the chainsaws came to the market about the same time as the Great Depression; with manpower cheap, and old two-man saws proven, there was no need for power saws.

3. Battery nomenclature - Wikipedia

   en.wikipedia.org/wiki/Battery_nomenclature

   A zinc-carbon lantern battery, consisting of 4 round "size 25" cells in series. Terminated with spring terminals. 4LR25-2: 4: L: R: 25: 2: An alkaline lantern battery, consisting of 2 parallel strings of 4 round "size 25" cells in series 6F22: 6: F: 22: A zinc-carbon rectangular battery, consisting of 6 flat "size 22" cells. Equivalent to a PP3 ...

4. List of battery sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_battery_sizes

   A Battery: Eveready 742: 1.5 V: Metal tabs H: 101.6 L: 63.5 W: 63.5 Used to provide power to the filament of a vacuum tube. B Battery: Eveready 762-S: 45 V: Threa­ded posts H: 146 L: 104.8 W: 63.5 Used to supply plate voltage in vintage vacuum tube equipment. Origin of the term B+ for plate voltage power supplies.

5. Battery swapping - Wikipedia

   en.wikipedia.org/wiki/Battery_swapping

   A station can cost $772,000 in China. A 90 kWh battery is charged at 60 kW and can be swapped in 6 minutes. [27] China operates cement trucks where the heavy battery is swapped. [29] A battery swap system with a 2 MWh battery in each 20-foot (6.1 m) shipping container powering a converted canal barge began operating in the Netherlands in 2021 ...

6. South East England - Wikipedia

   en.wikipedia.org/wiki/South_East_England

   Kubota UK, the tractor manufacturer, on the B4445, is the UK market leader of ride-on (diesel) lawn mowers; Kidde Products UK (fire protection) is off the B4012. Renault F1 is in Enstone ; off B4030 at Enstone Airfield Complex, Airbus Helicopters UK (Eurocopter before 2014) is at London Oxford Airport .

7. Timeline of historic inventions - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_historic...

   1830: Edwin Budding invents the lawn mower. 1831: Michael Faraday invents a method of electromagnetic induction. It would be independently invented by Joseph Henry the following year. Faraday is credited with inventing the first electric generator called the Faraday disk. 1834: Moritz von Jacobi invents the first practical electric motor.