Rosalind Franklin was a British biophysicist and X-ray crystallographer who made significant contributions to the understanding of the molecular structures of DNA, RNA, viruses, coal, and graphite. She is best known for her work on the X-ray diffraction images of DNA, which played a crucial role in the discovery of the double helix structure of DNA by James Watson and Francis Crick. Despite her groundbreaking work, Franklin did not receive the recognition she deserved during her lifetime, and her contributions were often overshadowed by her male colleagues. Franklin's work has since been acknowledged and she is now celebrated for her important contributions to the field of molecular biology. **

To mill an octagonal hole, you would start by marking the center point of the hole on the material. Then, using a milling machine with an end mill cutter, you would gradually remove material in a circular motion to create the octagonal shape. By rotating the material and making multiple passes with the cutter, you can achieve the desired octagonal hole. It is important to measure and check the dimensions periodically to ensure accuracy throughout the milling process. **

Small electric two-wheeler three-wheeler flatbeds with a roof typically have a compact design with a flatbed at the rear for carrying goods. They are usually equipped with a roof to provide protection from the elements. The vehicles are designed to be lightweight and maneuverable, making them suitable for navigating through crowded urban areas. They often have a simple and functional appearance, with a focus on practicality and efficiency for transporting goods in a small-scale urban environment. **

A two-wheeler mechanic master is a highly skilled and experienced professional who specializes in repairing and maintaining motorcycles, scooters, and other two-wheeled vehicles. They have extensive knowledge of the mechanical and electrical systems of two-wheelers and are capable of diagnosing and fixing a wide range of issues. These experts are often sought after for their ability to provide efficient and effective solutions to keep two-wheelers in top condition. **

In general, a car is considered safer than a two-wheeler due to its enclosed structure, seat belts, airbags, and other safety features. Cars provide more protection in the event of a crash and are less susceptible to external factors such as weather conditions and road hazards. However, safe driving practices and adherence to traffic laws are crucial for both car and two-wheeler users to minimize the risk of accidents and injuries. **

To calculate the diameter of an octagonal symmetrical object, you first need to find the distance between two opposite vertices of the octagon, which is also known as the diagonal. Once you have the diagonal length, you can use it to calculate the diameter by dividing the diagonal length by the square root of 2. This is because the diagonal of a regular octagon is equal to the diameter of the circumscribed circle. **

There could be several reasons why the new lawnmower Eco Wheeler 400 is not starting. It could be due to a lack of fuel or oil, a clogged air filter, a faulty spark plug, or a problem with the ignition system. It is important to check these components and ensure they are in proper working condition to troubleshoot and resolve the issue. If the problem persists, it may be necessary to consult the manufacturer or a professional for further assistance. **

The engine of the Big Wheeler 510 may not start due to a variety of reasons such as a dead battery, a faulty ignition system, a lack of fuel reaching the engine, or a problem with the starter motor. It could also be caused by issues with the fuel system, such as a clogged fuel filter or a malfunctioning fuel pump. Additionally, problems with the spark plugs or a broken timing belt could also prevent the engine from starting. It is important to troubleshoot and diagnose the specific issue in order to determine the exact reason why the engine won't start. **