Definition - What does Positive Displacement Pump mean? Positive Displacement Pump is a type of pump used to displace or force oil and petroleum products into pipelines or into various equipment installed in refineries.
A brain looks like a walnut because our minds are constantly making comparisons and finding similarities to help us understand the world around us. Here's an activity that can help you see more such things. Try to find faces.
Key difference: Walnut and cherry wood are two different types of hardwoods. Walnut wood is mainly sourced from trees belonging to the Juglans genus of trees. As a wood, walnut tends to have a hard, dense, and tight grain which has a smooth finish when polished.