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2. Gas-powered leaf blowers face a moment of reckoning - AOL

   www.aol.com/news/gas-powered-leaf-blowers-face...

   The outcry over leaf blowers has grown so loud that in October, California Gov. Gavin Newsom signed a bill that will spell an end to the use of gas-powered devices in the state.

3. States and towns consider banning gas-powered leaf blowers ...

   www.aol.com/news/states-towns-consider-banning...

   Some sources, like the website Gadget Review, say electric and gas mowers cost the same to buy, while others, such as a paper from Princeton University, say electric mowers are more expensive and ...

4. Is it time to phase out gas-powered lawn mowers and leaf ...

   www.aol.com/time-phase-gas-powered-lawn...

   New study recommends migration to electric-powered lawn and garden equipment because the planet is showing severe signs of climate distress.

5. 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.

6. Slappy and the Stinkers - Wikipedia

   en.wikipedia.org/wiki/Slappy_and_the_Stinkers

   The Stinkers fail to notice that the leaf blower was not entirely duct taped onto the desk chair. When turned it on, the leaf blower flew off the contraption but left Witz sitting in the chair. The leaf blower was heading straight for Mr. Brinway's new convertible, but the leaf blower ran out of gas before it could destroy the car.

7. Heat recovery ventilation - Wikipedia

   en.wikipedia.org/wiki/Heat_recovery_ventilation

   Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...