Category: Physics

What is an example of a stable community? A stable community is one in which the size of the populations of all species remain relatively constant over time. In the example above the amount of grass, and the numbers of rabbits and foxes all remain relatively constant. The different populations are living in a healthy […]

Can Locust kill humans? Aristotle studied locusts and their breeding habits and Livy recorded a devastating plague in Capua in 203 BC. He mentioned human epidemics following locust plagues which he associated with the stench from the putrifying corpses; the linking of human disease outbreaks to locust plagues was widespread. What causes locust plagues? Sudden […]

What body part has the most bones? The hands and feet contain over half of the body’s bones. Coming out on top are your hands and feet. Each hand has 27 bones, and each foot has 26, which means that together the body’s two hands and two feet have 106 bones. That is, the hands […]

Can you put someone out with a fire extinguisher? Fire extinguishers are an integral part of fire safety, but most people probably won’t have to use one in their lives. Can a Fire Extinguisher be Used on a Person? The short answer is, yes. A fire extinguisher can be used on a person if the […]

Which one of the following is the example of solid? Synthetic gems are the examples of solid solid system. Smoke is solid in gas, coke is gas in liquid and pumice stone is gas in solid. What is a solid mixture? Solid Mixtures They can have pure elements or a variety of compounds inside. When […]

Do floating eggs work? If the egg sinks or stays at the bottom, it is still fresh. An older egg will either stand on its end or float. The float test works because air builds up inside the egg as it ages, and this increases its buoyancy. However, an egg that floats may still be […]

What weather do occluded fronts bring? An Occluded Front forms when a warm air mass gets caught between two cold air masses. The temperature drops as the warm air mass is occluded, or “cut off,” from the ground and pushed upward. Such fronts can bring strong winds and heavy precipitation. Occluded fronts usually form around […]

Does Israel have neutron bombs? Israel is also reported to possess a wide range of different systems, including neutron bombs, tactical nuclear weapons, and suitcase nukes. Israel is believed to manufacture its nuclear weapons at the Negev Nuclear Research Center. Does Israel have nuclear capability? Estimates of Israel’s stockpile range between 80 and 400 nuclear […]

How can I increase my observation power? Follow these eight steps and you won’t miss a thing: Know your subject. Slow down and look outwards. Try something new. Improve your concentration by cutting out distractions. Challenge yourself to a mental workout. Test your observation by playing a memory game. Record and consider your observations. Stay […]

What is the speed of electromagnetic waves in air? All these waves propagate in vacuum with the same speed c, the speed of light. The speed of light in air (at standard temperature and pressure) is very close to the speed of light in vacuum (the refractive index of air, n, is 1.0002926, meaning that […]