The above are further subdivided into 31 planes of existence.[web 4] Rebirths in some of the higher heavens, known as the Suddhavasa Worlds or Pure Abodes, can be attained only by skilled Buddhist practitioners known as anagamis (non-returners). Rebirths in the Arupyadhatu (formless realms) can be attained by only those who can meditate on the arupajhanas, the highest object of meditation.
What is the highest object of meditation?
arupajhanas

LED lamps have been advocated as the newest and best environmental lighting method. According to the Energy Saving Trust, LED lamps use only 10% power compared to a standard incandescent bulb, where compact fluorescent lamps use 20% and energy saving halogen lamps 70%. The lifetime is also much longer up to 50,000 hours. A downside is still the initial cost, which is higher than that of compact fluorescent lamps.
What is the average lifetime of a CFL?
50,000 hours

Logan Airport, located in East Boston and operated by the Massachusetts Port Authority (Massport), is Boston's principal airport. Nearby general aviation airports are Beverly Municipal Airport to the north, Hanscom Field to the west, and Norwood Memorial Airport to the south. Massport also operates several major facilities within the Port of Boston, including a cruise ship terminal and facilities to handle bulk and container cargo in South Boston, and other facilities in Charlestown and East Boston.
What airport is south of Logan Airport?
Norwood Memorial Airport