For example, methane is a much more powerful greenhouse gas than carbon dioxide. Over a 100 year period, a molecule of methane (CH4) has 21 times the warming effect as a molecule of carbon dioxide (CO2), even though it stays in the atmosphere for only about 12 years of the 100 year period.he warming impact of different types of greenhouse gases varies according to the warming power of the gas and the length of time it stays in the atmosphere. As shown in Table 1, carbon dioxide has an atmospheric life of 50 to 200 years.
hydraulic manifold definition, hydraulic manifold meaning | English dictionary. hydraulic. n a press that utilizes liquid pressure to enable a small force applied to a small piston to produce a large force on a larger piston.
(November 2014) (Learn how and when to remove this template message) (Learn how and when to remove this template message) A hydraulic valve lifter, also known as a hydraulic tappet or a hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. Conventional solid valve lifters require regular adjusting to maintain a small clearance between the valve and its rocker or cam follower.