This video gives an introduction to using adjustment layers in photoshop, giving you a few ideas of how to use them.
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Air source and ground source heat pumps
What is a heat pump? A heat pump is a system that extracts heat from a source, such as the ground, and upgrades the heat to a useful temperature. The heat is then used for space heating. Electricity is required to convert the heat that is harvested into...
Free Download – People 03
Free People Download 03 I have been playing around with some new techniques recently, and have come up with a few more of these people. I hope you like them! They are free to download, PNG files, in colour, dark grey and white, so they are easy to drag and...
Combined Heat and Power
What is Combined heat and power (CHP)? Combined heat and power (CHP) generates electricity by burning fuel, and captures the usable heat that is produced in the process. Essentially, it is a system that is able to produce both electricity, and heating....