Gas lighting explains why a large number of older gas lamps have been converted to electricity. Solar-rechargeable battery-powered gas light controllers can be easily retrofitted into existing gas lamps to keep the lights off during daylight hours and cut energy consumption and green-house gas carbon emissions by 50%. The use of natural gas (methane) for "indoor" lighting is nearly extinct. Besides producing a lot of heat, the combustion of methane tends to release significant amounts of carbon monoxide, a colorless and odorless gas which is more readily absorbed by the blood than oxygen, and can be deadly. Historically, the use of lamps
Lawn-Boy orders for these mowers from Sears Roebuck, Gimbles, Spiegel, and other businesses. OMC then bought RPM in 1952, and changed the brand of the rotary lawn mower to the Lawn-Boy name. In the 1950s, RPM facilities were converted to production line manufacturing to meet the high number of orders from bigger retailers such as Sears Roebuck and Spiegel. Also, newer, quieter engines were introduced to reduce sound. The next couple of decades included a long period of research and development as the company continued to expand, including overseas. Riding mowers, tillers, and snow blowers were introduced, as well as a