1 Next add your ingredients: the compost and kelp or molasses. 2  Let the tea brew for about 24 hours. 3  Make sure the opening to the air pump is distributed evenly (cheapest is an air stone) and secured to the bottom, so it does not get pushed to the top overnight. 4  This will keep the tea sufficiently aerobic.
One example of a technical control is data encryption. Other examples are network intrusion detection systems, passwords, firewalls and access control lists. Continue Reading. Technical controls secure computing system and information access through strategically designed software and hardware.
Computer numeric controlled equipment is precision machinery that cuts, grinds, or drills into the material. CNC machinists make adjustments to the machine to control speed, material feed and path of the cut, as well as make sure the machines are set up properly, working well, and producing quality product. CNC machinists make sure their machines are working at full capacity, are stocked with needed materials, well-maintained and perform periodic checks on output. They look at the finished product to ensure it is defect-free and ready for the next step in production.