No, liquid ammonia does not have nearly double the energy density of liquid hydrogen. Liquid ammonia has an energy density of about 11.5 MJ/L, while liquid hydrogen has an energy density of about 8.5 MJ/L. Therefore, liquid ammonia has a higher energy density compared to liquid hydrogen, but it is not nearly double. **

There are 7 single-digit natural numbers (2, 3, 5, 6, 7, 8, 9) that do not have a natural square root. For double-digit natural numbers, there are 81 numbers (10-31, 33-99) that do not have a natural square root. In total, there are 88 single-digit and double-digit natural numbers that do not have a natural square root. **

Double times such as 00:00, 11:11, and 16:16 are often considered to be significant in various cultures and belief systems. Some people believe that these times hold special spiritual or metaphysical significance, and may make a wish or set an intention when they see them. Others may see them as a sign of alignment or synchronicity, representing a moment of balance or harmony. Ultimately, the meaning of these double times can vary depending on individual beliefs and interpretations. **

The double-struck "n" is typically written as ℕ and represents the set of natural numbers. This symbol is often used in mathematics to denote the set of positive integers, including zero. It is important to distinguish between the regular "n" and the double-struck "n" to avoid confusion in mathematical notation. **

Losing nearly 16 kg in 2 months is a significant amount of weight to lose in a short period of time. While rapid weight loss can be motivating, it is important to consider the health implications of such drastic changes. It is recommended to aim for a gradual and sustainable weight loss of 0.5-1 kg per week to ensure that the weight loss is healthy and maintainable in the long term. Consulting with a healthcare professional or a nutritionist can help you determine if your weight loss is a good value for your overall health and well-being. **

It is difficult to find a political system that makes corruption nearly impossible, as corruption can occur in any system due to human nature. However, some political systems have implemented measures to minimize corruption, such as strong checks and balances, transparency in government operations, and independent anti-corruption agencies. For example, some Nordic countries like Denmark and Finland are often cited as having low levels of corruption due to their strong rule of law, transparency, and accountability mechanisms. While no system can completely eliminate corruption, these measures can help to significantly reduce its occurrence. **

If someone nearly suffocated in the night, it could be a serious medical emergency that requires immediate attention. It could be caused by a variety of factors such as sleep apnea, asthma, or choking on something. It is important to seek medical help to determine the underlying cause and prevent it from happening again. It is also crucial to ensure a safe sleeping environment to prevent any future incidents. **

Copying processes are not nearly impossible, as they are a common practice in various industries. With the advancement of technology, copying processes have become more efficient and accurate. However, there are certain limitations and challenges in copying processes, such as maintaining the quality of the original and ensuring legal compliance with copyright laws. Overall, while copying processes may have their difficulties, they are not nearly impossible. **