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In the next few pages, we’ll check out simply what makes the sleeve-valve engine flip. We’ll additionally study why it fell out of favor, together with the explanations it is being called up now, more than a century after its invention, to serve in a special form of “battle.”

In addition to the emergency automobile crashes, NHTSA has also compiled a listing of Special Crash Investigations (SCI) by which the company collects data beyond what native authorities and insurance coverage corporations usually collect at the scene. The agency additionally examines crashes involving superior driver-assist methods, like Tesla’s Autopilot, and automated driving programs.

Palm oil can produce one of the most power-dense biofuels, thus making it a primary candidate for large-scale biofuel producers. But demand for palm oil-primarily based biofuel in Europe within the mid 2000s spurred the expansion of large palm oil plantations in Southeast Asia. Rainforests were leveled to make room for the farms: By some estimates, Carros usados more than 80 % of the deforestation in Malaysia in the 15 years before 2000 was as a result of palm oil plantation expansion [supply: Rosenthal].