What type of simple machine is a screw? A screw is a special kind of inclined plane. It’s basically an inclined plane wrapped around a pole. Screws can be used to lift things or to hold them together. Examples of the screw simple machine include swivel chairs, jar lids, and, of course, screws. Is a […]
How are molds made for injection molding?
How are molds made for injection molding? Injection molds, which are usually made from steel, contain cavities that will form the parts. Melted plastic is injected into the mold, filling the cavities. The mold is cooled, and the parts are ejected by pins. This process is similar to a jello mold which is filled then […]
What are degreasers made of?
What are degreasers made of? One active ingredient in many degreasers, sodium carbonate (also known as soap ash), is used in powdered detergents as well as degreasers. Sodium carbonate works to break down grease and oil, and remove lubricants from materials and objects. What are degreasers used in cleaning? A degreaser is a cleaner designed […]
Should blood flow be laminar or turbulent?
Should blood flow be laminar or turbulent? Generally in the body, blood flow is laminar. However, under conditions of high flow, particularly in the ascending aorta, laminar flow can be disrupted and become turbulent. When this occurs, blood does not flow linearly and smoothly in adjacent layers, but instead the flow can be described as […]
How do you measure toe alignment?
How do you measure toe alignment? Assuming that the steering wheel is already centered, adjust the tie-rods on each side the same amount. Roll the vehicle back and forth several feet a few times to transfer your adjustment to the tires, then re-measure the toe. Repeat this step until the toe is within spec. Does […]
What is meant by stress concentration How do you take it into consideration in case of a component subjected to dynamic loading?
What is meant by stress concentration How do you take it into consideration in case of a component subjected to dynamic loading? Stress concentration occurs at the junction of two different diameters or around discontinuities like holes At these places the stress value increases more than the average values. It is more pronounced in dynamic […]
What is cold storage?
What is cold storage? Cold storage: A cold storage is a commercial facility for storing perishable products such as fruits, vegetables, meat, fish etc. under controlled conditions for longer periods. Based on the storage conditions, cold storages may be classified into three categories: i) Short-term or temporary storage. What is the best cold storage wallet? […]
What chemicals were in the atomic bomb?
What chemicals were in the atomic bomb? Two atomic bombs made by the allied powers (USA and UK) from uranium-235 and plutonium-239 were dropped on Hiroshima and Nagasaki respectively early in August 1945. These brought the long Second World War to a sudden end. The immense and previously unimaginable power of the atom had been […]
What happens to magnetic potential energy when repelling magnets are forced together?
What happens to magnetic potential energy when repelling magnets are forced together? The field produces a repulsive force pushing them apart. They repel each other. In this case, the closer they are, the higher their potential energy will be. If allowed to move, they may move as far apart as possible or one will swing […]