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.
Among all nuts, walnuts may be the king because they help improve your health in number of ways -- here are some seven benefits of walnuts. Among all nuts, walnuts may be the king because they help improve your health in number of ways -- here are some seven benefits of walnuts.