Yes, there are coin-operated vending machines in Flensburg. These machines can be found in various locations such as train stations, shopping centers, and public buildings. They offer a variety of products including snacks, drinks, and even everyday essentials like toiletries and phone chargers. Customers can use coins to make purchases from these vending machines. **

No, Ballistol oil is not self-igniting. It has a flash point of over 100 degrees Celsius, which means it requires a high temperature to ignite. However, it is still important to handle Ballistol oil with care and avoid exposing it to open flames or high heat sources to prevent any potential fire hazards. **

Oil heating systems can typically be operated for 15-20 years with proper maintenance and care. Regular maintenance, such as annual inspections and cleanings, can help prolong the life of the system. However, as the system ages, it may become less efficient and more prone to breakdowns, so it is important to consider replacing the system after it reaches a certain age. **

No, a Zippo cannot be operated with lamp oil. Zippo lighters are designed to be used with lighter fluid, which is a specific type of fuel that is formulated to work with the lighter's wick and flint ignition system. Using lamp oil in a Zippo could damage the lighter and cause it to malfunction. It's important to always use the recommended fuel for a Zippo lighter to ensure safe and proper operation. **

Yes, the gasoline lawn mower was operated without oil. This is evident from the fact that the engine seized up and stopped working, which is a common consequence of running a gasoline engine without oil. Oil is essential for lubricating the moving parts of the engine and preventing excessive friction and heat buildup. Without oil, the engine can quickly become damaged and cease to function properly. **

At the first coin-operated vending machine, which was created in the early 1880s by Percival Everett, customers could purchase postcards for their money. The machine was installed in the railway stations and post offices in London, and for a penny, customers could receive a postcard featuring a picture of the surrounding area. This early vending machine was a novelty at the time and provided customers with a convenient way to purchase postcards without the need for human interaction. **

No, a diesel car cannot be operated using heating oil and vegetable oil from French fries without modification. While both heating oil and vegetable oil can technically be used as fuel in a diesel engine, they are not ideal substitutes. Using heating oil can damage the engine and is illegal in many places, while using vegetable oil from French fries requires modifications to the car's fuel system to ensure proper combustion. It's important to consult with a professional mechanic or engineer before attempting to use alternative fuels in a diesel car. **

While heating oil and diesel are similar in composition, they are not exactly the same. Heating oil is typically a lower grade and less refined than diesel fuel. While it may be possible to operate a heating oil heater with diesel fuel in an emergency situation, it is not recommended for long-term use. Using diesel fuel in a heating oil heater could potentially damage the heater and void any warranties. It is best to use the fuel that is specifically recommended by the manufacturer for optimal performance and safety. **