Polar airmasses become very cold, especially in the winter, because relatively little sunlight shines on the poles of the Earth, and so the air mass continuously loses infrared radiation to outer space, which cools it, with little or no sunlight to offset that cooling.
Whether you need to plant a tree or dig a hole for a backyard barbeque pit, there are special tools you can use to make the job easier. Digging bars are designed specifically to help you clear dirt, rocks and other items out of the way.amiliarizing yourself with safety tips is also a good idea to avoid some of the accidents that can happen when using heavy, steel digging bars. Digging a Hole: After carefully selecting the location for your hole, plan the dimensions of the hole. Next, mark off the shape of your hole with rope.
1 Use a post hole digger or shovel to dig a hole to the proper depth. Do not make the hole wider than needed to minimize back-filling. 2  Place 6â³ of QUIKRETEÂ® All-Purpose Gravel on the base of the hole to help with drainage.  Cut the QUIK-TUBEâ¢ rigid form to size.