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.
1 Curry, celery, broccoli, cauliflower and walnuts contain antioxidants and other compounds that protect your brain health and may even stimulate the production of new brain cells. 2  Healthy fats, blueberries, red meat, crab and garbanzo beans are also wonderful foods for brain health.n addition to celery, peppers and carrots are also good sources of luteolin. 3. Broccoli and Cauliflower Broccoli and cauliflower are good sources of choline, a B vitamin known for its role in brain development.