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The smell of freshly cut grass is an odour caused by green leaf volatiles (GLVs) released when it is damaged. Mechanical damage to grass from activities such as lawnmowing results in the release of cis -3-hexenal and other compounds that contribute to a grassy or "green" smell.
Most people think that lawn care begins in the spring, but it actually starts in late summer. Here's what you need to know, from seeding to weeding. 6 things to do right now for a great lawn next ...
A fixed line style string trimmer head. A fixed-line string trimmer has a trimmer head that takes pre-cut line inserts. There is no wound spool of line in the trimmer head; the user instead feeds the pre-cut line in to the appropriate slots, making the trimmer easier to feed line into and troubleshoot than a bump feed system. [citation needed]
The average electric lawn mower lasts for just an hour before needing to be recharged. That may be plenty of time for the typical homeowner tending to their own lawn but not for a company that ...
A vacuum hose connected to the intake manifold downstream of the throttle provides a reference pressure for the blowoff valve.. When the throttle is open, the air pressure on both sides of the blowoff valve's piston is equal, therefore the spring holds the valve closed.
A cylinder (reel) mower from 1888 showing a fixed cutting blade in front of the rear roller and wheel-driven rotary blades. Budding had the idea of the lawnmower after seeing a machine in a local cloth mill that used a cutting cylinder (or bladed reel) mounted on a bench to trim the irregular nap from the surface of woolen cloth and give a smooth finish. [2]
The intent of vacuum packing is usually to remove oxygen from the container to extend the shelf life of foods and, with flexible package forms, to reduce the volume of the contents and package. [2] Vacuum packing reduces atmospheric oxygen, limiting the growth of aerobic bacteria or fungi, and preventing the evaporation of volatile components
Changing the orientation of their leaves in different directions (parallel or perpendicular) allows plants to reduce damage from intense light. Leaves also wilt in response to stress, because it changes the angle at which the sun hits the leaf. Leaf rolling also minimizes how much of the leaf area is exposed to the sun. [2]