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. **

You may not be able to prove your age at a cigarette vending machine because you may not have a valid form of identification that confirms your age. Additionally, some vending machines may not have the capability to verify age, or the technology may not be functioning properly. It is important to have a valid form of identification, such as a driver's license or ID card, to prove your age when purchasing age-restricted products. **

If you have documents that you cannot prove, you can consider using alternative evidence to support their authenticity. This could include providing witness testimony, obtaining affidavits from individuals familiar with the documents, or presenting circumstantial evidence that supports their validity. Additionally, you may want to consult with a legal professional to explore other options for proving the documents, such as seeking expert analysis or conducting further research to establish their credibility. **

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. **

Whether or not you can prove something depends on the specific claim or statement in question. To prove something, you typically need to provide evidence, logical reasoning, or data that supports your assertion. It's important to consider the context and complexity of the claim before determining if you can prove it. If you have sufficient evidence and a logical argument to support your claim, then you may be able to prove it. **

The question "What does that prove?" is often used to challenge the significance or relevance of a particular piece of evidence or argument. In response, one could explain the implications of the evidence or argument in relation to the larger issue at hand. This could involve demonstrating how the evidence supports a particular conclusion, undermines a counterargument, or sheds light on a key aspect of the topic. Ultimately, the goal is to show the logical and persuasive force of the evidence or argument in question. **

This question depends on the specific context and what "this" refers to. In general, the ability to prove something depends on the evidence and expertise available. It could be proven by a qualified expert, a credible witness, or through scientific research and data. Ultimately, the burden of proof may fall on the party making the claim, and it may require the support of reliable evidence and reasoning. **

To prove the external high school diploma through self-study, one can start by researching the requirements and curriculum for obtaining a high school diploma in their state or country. Then, they can create a study plan and schedule to cover all the necessary subjects and topics. Utilizing online resources, textbooks, and practice exams can help in self-study. Additionally, registering for the external high school diploma exam and successfully passing it will provide the official proof of obtaining the diploma through self-study. **