How is rigid polyurethane foam made? Polyurethane foam is a porous, cellular-structured, synthetic material made from the reaction of polyols and diisocyanates. Its structure is a composite of a solid phase and a gas phase. The solid phase is made from polyurethane elastomer while the gas phase is air brought about by blowing agents. What […]
Can bugs lay eggs in your hair? Louse eggs, called nits, are laid on the head hairs at the juncture of the hair shaft and scalp. The eggs are coated with a cementlike substance that glues them to the hair. Head lice are not known to transmit any infectious diseases and must be transferred through […]
What is the role of the constrictor muscles of the pharynx? By sequential contraction, the pharyngeal constrictor muscles create a peristaltic wave that facilitates passage of the food bolus inferiorly, from the pharynx towards the esophagus, during the act of deglutition. What is the function of constrictor muscles? The middle pharyngeal constrictor muscle is one […]
Is there unowned land in Texas? These unowned plots of land, ranging in size from less than an acre to several hundred acres, formerly occurred widely over Texas, particularly in the older, unsectioned areas, and in 1940 were estimated to amount to as much as 5 percent of the total area of the state. Do […]
How many projects are there in Narmada river? Narmada River valley is the largest west flowing river and also known as the Life Line of Madhya Pradesh. There are 30 major dams,135 medium dams and around 3000 minor dam projects are proposed along with long canals on the Narmada Basin by NVDA. Which project is […]
What juices are good for dogs? Fresh fruit juices, such as apple juice or orange juice can be given as an occasional treat. But juices made of fruit concentrate are another matter. Fresh fruit juices are neither toxic nor unhealthy for dogs, just make sure the seeds have been removed before popping them into the […]
What kind of iPhone was out in 2012? iPhone 5 iPhone 5. With the iPhone 5, launched in 2012, Apple once again shifted the design of its iPhones. It changed from a 30-pin charging port to the current Lightning port. It also added LTE support for new 4G networks. What day in September does the […]
What is the use of Erukku plant? In Ayurveda, leaves, root, bark and berries of the plant can be used as medicine against rheum and phlegm-related diseases. The root is used as an antidote and is also a laxative. The sap of crown plant can be applied continuously to remove corn and callus. The crown […]
When did the TV show Dallas start and end? The series was a revival of the prime time television soap opera of the same name that was created by David Jacobs and which aired on CBS from 1978 to 1991. The series revolves around the Ewings, an affluent Dallas family in the oil and cattle-ranching […]
What is the main idea of the Scarlet Letter? Hawthorne blends supernatural elements with psychological insight in his story of one woman’s public punishment for adultery. Explore a character analysis of Hester Prynne, plot summary, and important quotes. Read our full plot summary and analysis of The Scarlet Letter, chapter by chapter breakdowns, and more. […]
